(:title Pascaline ~1652 - working exemplar based on surviving machines:)

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by [[http://www.rechenhilfsmittel.de|Jan Meyer]] from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, a working exemplar which takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_QS.jpg|Queen of Sweden Pascaline]] but also of the [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris. It also has some elements of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden[^Together with some minor internal mechanical design variations, most notably the ratcheting "pawls" are slightly offset from their usual position.^].  As with the Queen of Sweden Pascaline this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including the Tardive and that at Dresden) which are "accounting Pascalines" configured to add the currency of the period. (A [[DresdenPascaline1652|subsequent replica by Jan Meyer - of the "Queen of Poland" Pascaline]] - is also held in this collection.)

Other information provided in this site includes [[DresdenPascaline1652|subsequent replica by Jan Meyer - of the "Queen of Poland" Pascaline]],  [[Operating Instructions for a Pascaline]], [[Site.Diderot1759|1759 diagram]], [[http://meta-studies.net/pmwiki/uploads/Avis_Blaise_Pascale.pdf|Pascal's original "avis nécessaire" pamphlet]] and other [[Site.PascalineMechanism|historical diagrams of the mechanism]] and details of [[Site.SurvivingPascalines|surviving Pascalines]] and other [[Site.ReplicaPascalines| replica Pascalines]].

(:title Pascaline ~1652 - replica based on surviving examples:)

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by [[http://www.rechenhilfsmittel.de|Jan Meyer]] from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_QS.jpg|Queen of Sweden Pascaline]] but also of the [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris. It also has some elements of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden[^Together with some minor internal mechanical design variations, most notably the ratcheting "pawls" are slightly offset from their usual position.^].  As with the Queen of Sweden Pascaline this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including the Tardive and that at Dresden) which are "accounting Pascalines" configured to add the currency of the period. (A [[DresdenPascaline1652|subsequent replica by Jan Meyer - of the "Queen of Poland" Pascaline]] - is also held in this collection.)

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by [[http://www.rechenhilfsmittel.de|Jan Meyer]] from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_QS.jpg|Queen of Sweden Pascaline]] but also of the [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris. It also has some elements of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden[^Together with some minor internal mechanical design variations, most notably the ratcheting "pawls" are slightly offset from their usual position.^].  As with the Queen of Sweden Pascaline this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including the Tardive and that at Dresden) which are "accounting Pascalines" configured to add the currency of the period. (A [[DresdenPascaline1652|subsequent replica by Jan Meyer - of the Queen of Poland Pascaline]] - is also held in this collection.)

Other information provided in this site includes [[Operating Instructions for a Pascaline]], [[Site.Diderot1759|1759 diagram]], [[http://meta-studies.net/pmwiki/uploads/Avis_Blaise_Pascale.pdf|Pascal's original "avis nécessaire" pamphlet]] and other [[Site.PascalineMechanism|historical diagrams of the mechanism]] and details of [[Site.SurvivingPascalines|surviving Pascalines]] and other [[Site.ReplicaPascalines| replica Pascalines]].

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by [[http://www.rechenhilfsmittel.de|Jan Meyer]] from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_QS.jpg|Queen of Sweden Pascaline]] but also of the [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris. It also has some elements of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden[^Together with some minor internal mechanical design variations, most notably the ratcheting "pawls" are slightly offset from their usual position.^].  As with the Queen of Sweden Pascaline this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including the Tardive and that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

Other information provided in this site includes [[Operating Instructions for a Pascaline]], [[Site.Diderot1759|1759 diagram]] and other [[Site.PascalineMechanism|historical diagrams of the mechanism]] and details of [[Site.SurvivingPascalines|surviving Pascalines]] and other [[Site.ReplicaPascalines| replica Pascalines]].

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by [[http://www.rechenhilfsmittel.de|Jan Meyer]] from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_QS.jpg|Queen of Sweden Pascaline]] but also of the [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris. It also has some elements of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden[^Together with some minor internal mechanical design variations, most notably the ratcheting "pawls" are slightly offset from their usual position.^].  As with the tardive this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by [[http://www.rechenhilfsmittel.de|Jan Meyer]] from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_QS.jpg|Queen of Sweden Pascaline}} but also of the [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris. It also has some elements of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden[^Together with some minor internal mechanical design variations, most notably the ratcheting "pawls" are slightly offset from their usual position.^].  As with the tardive this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by [[http://www.rechenhilfsmittel.de|Jan Meyer]] from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with features of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden[^Together with some minor internal mechanical design variations, most notably the ratcheting "pawls" are slightly offset from their usual position.^].  As with the tardive this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with features of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden[^Together with some minor internal mechanical design variations, most notably the ratcheting "pawls" are slightly offset from their usual position.^].  As with the tardive this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

Other information provided in this site includes [[Operating Instructions for a Pascaline]], and details of other [[Site.ReplicaPascalines| replica Pascalines]].

||%center% Carry Mechanism\\(sautoir) from Diderot[^Denis Diderot and Jean le Rond d’Alembert, "Algebre et Arithmetique - Machine de Arithmetique de Pascal”,  //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers//, First folio edition, 1759, Volume 22, Plate 2. (Hand coloured).  Original print, collection Calculant.^]\\(collection Calculant)||%center% as recreated in\\ collection Calculant ||

||%center% Carry Mechanism\\(sautoir) from Diderot[^Denis Diderot and Jean le Rond d’Alembert, "Algebre et Arithmetique - Machine de Arithmetique de Pascal”,  //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers//, First folio edition, 1759, Volume 22, Plate 2. (Hand coloured).  Original print, collection Calculant.^]\\collection Calculant||%center% as recreated in\\ collection Calculant ||

||%center% Carry Mechanism\\(sautoir) from Diderot[^Denis Diderot and Jean le Rond d’Alembert, "Algebre et Arithmetique - Machine de Arithmetique de Pascal”,  //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers//, First folio edition, 1759, Volume 22, Plate 2. (Hand coloured).  Original print, collection Calculant.^]||%center% as recreated in\\ collection Calculant ||

The carry mechanism is the classical "sautoir" as described by Diderot and  d’Alembert[^Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, par une Société de Gens de lettres//, 1ere edition, vol. 1, 1751: see also Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers//, etc., eds. University of Chicago: ARTFL Encyclopédie Project, Spring 2013 Edition, Robert Morrissey (ed), [[ http://encyclopedie.uchicago.edu/.]], viewed 12 July 2013; and in particular http://encyclopedie.uchicago.edu/.vol. 1, p. 680 [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.0:2906:6.encyclopedie0513.7646494]], viewed 12 July 2013;  see in particular diagram of mechanism [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.21:11:2.encyclopedie0513.79948]], expanded image at  [[http://artflsrv02.uchicago.edu/images/encyclopedie/V22/plate_22_2_12.jpeg]] (plate 22.2.12)^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever pushes the spoke of the next gear (the tens) to rotate that gear by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit. For more detail on the mechanism of the Pascaline [[PascalineMechanism|click here]].

||%center% Carry Mechanism\\(sautoir) from Diderot[^Denis Diderot and Jean le Rond d’Alembert, "Algebre et Arithmetique - Machine de Arithmetique de Pascal”,  //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers//, First folio edition, 1759, Volume 22, Plate 2. (Hand coloured).^]||%center% as recreated in\\ collection Calculant ||

||%center% Carry Mechanism\\(sautoir) from Diderot||%center% as recreated in\\ collection Calculant ||

||%center%%height=200px% http://meta-studies.net/pmwiki/uploads/PA_DiderotMech1.jpg||%center%%height=200px%  http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg||
||%center% Carry Mechanism\\(sautoir) from Diderot||%center% as recreated in\\ Collection Calculant ||

The carry mechanism is the classical "sautoir" as described by Diderot and  d’Alembert[^Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, par une Société de Gens de lettres//, 1ere edition, vol. 1, 1751: see also Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers//, etc., eds. University of Chicago: ARTFL Encyclopédie Project, Spring 2013 Edition, Robert Morrissey (ed), [[ http://encyclopedie.uchicago.edu/.]], viewed 12 July 2013; and in particular http://encyclopedie.uchicago.edu/.vol. 1, p. 680 [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.0:2906:6.encyclopedie0513.7646494]], viewed 12 July 2013;  see in particular diagram of mechanism [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.21:11:2.encyclopedie0513.79948]], expanded image at  [[http://artflsrv02.uchicago.edu/images/encyclopedie/V22/plate_22_2_12.jpeg]] (plate 22.2.12)^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit. For more detail on the mechanism of the Pascaline [[PascalineMechanism|click here]].

The carry mechanism is the classical "sautoir" as described by Diderot[^Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, par une Société de Gens de lettres//, 1ere edition, vol. 1, 1751: see also Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers//, etc., eds. University of Chicago: ARTFL Encyclopédie Project, Spring 2013 Edition, Robert Morrissey (ed), [[ http://encyclopedie.uchicago.edu/.]], viewed 12 July 2013; and in particular http://encyclopedie.uchicago.edu/.vol. 1, p. 680 [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.0:2906:6.encyclopedie0513.7646494]], viewed 12 July 2013;  see in particular diagram of mechanism [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.21:11:2.encyclopedie0513.79948]], expanded image at  [[http://artflsrv02.uchicago.edu/images/encyclopedie/V22/plate_22_2_12.jpeg]] (plate 22.2.12)^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit. For more detail on the mechanism of the Pascaline [[PascalineMechanism|click here]].

The carry mechanism is the classical "sautoir" as described by Diderot[^Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, par une Société de Gens de lettres//, 1ere edition, vol. 1, 1751: see also Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers//, etc., eds. University of Chicago: ARTFL Encyclopédie Project, Spring 2013 Edition, Robert Morrissey (ed), [[ http://encyclopedie.uchicago.edu/.]], viewed 12 July 2013; and in particular http://encyclopedie.uchicago.edu/.vol. 1, 680 [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.0:2906:6.encyclopedie0513.7646494]], viewed 12 July 2013;  see in particular diagram of mechanism [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.21:11:2.encyclopedie0513.79948]], expanded image at  [[http://artflsrv02.uchicago.edu/images/encyclopedie/V22/plate_22_2_12.jpeg]] (plate 22.2.12)^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit. For more detail on the mechanism of the Pascaline [[PascalineMechanism|click here]].

The carry mechanism is the classical "sautoir" as described by Diderot[^Diderot & D'Alembert, //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, par une Société de Gens de lettres//, 1ere edition, vol. 1, 1751: see also Denis Diderot and Jean le Rond d'Alembert, //Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers//, etc., eds. University of Chicago: ARTFL Encyclopédie Project, Spring 2013 Edition, Robert Morrissey (ed), [[ http://encyclopedie.uchicago.edu/.]], viewed 12 July 2013; and in particular http://encyclopedie.uchicago.edu/.vol. 1, 680 [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.0:2906:6.encyclopedie0513.7646494]], viewed 12 July 2013;  see in particular diagram of mechanism [[http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.21:11:2.encyclopedie0513.79948]], expanded image at  [[http://artflsrv02.uchicago.edu/images/encyclopedie/V22/plate_22_2_12.jpeg]] (plate 22.2.12)^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit. For more detail on the mechanism of the Pascaline [[PascalineMechanism|click here]].

The carry mechanism is the classical "sautoir" as described by Diderot[^Diderot & D'Alembert, //Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, par une Société de Gens de lettres//, 1ere edition, vol. 1, 1751: see also [[http://encyclopedie.uchicago.edu]], viewed 12 July 2013.^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit. For more detail on the mechanism of the Pascaline [[PascalineMechanism|click here]].

The carry mechanism is the classical "sautoir" as described by Diderot[^Diderot & D'Alembert, //Encyclopédie de Diderot & d'Alembert//, 1ere edition, vol. 1: see also [[http://encyclopedie.uchicago.edu]], viewed 12 July 2013.^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit. For more detail on the mechanism of the Pascaline [[PascalineMechanism|click here]].

The carry mechanism is the classical "sautoir" as described by Diderot[^Diderot & D'Alembert, //Encyclopédie de Diderot & d'Alembert//, 1ere edition, vol. 1.^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit. For more detail on the mechanism of the Pascaline [[PascalineMechanism|click here]].

Other information provided in this site includes [[Operating Instructions for a Pascaline]].

House of Pascal[^In a note by J. Mesnard cited in an article by Payen, the coat of arms of the Pascal family of Mons consisted of a paschal lamb in gold holding a banner and a "croisetée de gueules" - "En termes de blason ces armes s'énon ceraient : d'azur à un agneau pascal d'argent, tenant une banderole de même, croisetée de gueules. Ces armes étaient primitivement celles de la famille Pascal de Mons, à laquelle appartenait Marguer Itela, grand-mère de Pascal. Elles furent adoptées ensuite par la famille Pascal, originaire de Cournon, à laquelle appar tenait Martin, époux de Marguerite et grand-pere de Pascal (Note deJ. Mesnard)." From M Jacques Payen, "Les exemplaires conservés de la machine de Pascal",  //Revue d'histoire des sciences et de leurs applications// vol. 16 n°2., 1963, pp. 161-178. ^]

The carry mechanism is the classical "sautoir" as described by Diderot[^Diderot & D'Alembert, //Encyclopédie de Diderot & d'Alembert//, 1ere edition, vol. 1.^]. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit.

%center%||%center%%height=200px% http://meta-studies.net/pmwiki/uploads/PA_DiderotMech1.jpg||%center%%height=200px%  http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg||
%center%||%center% Carry Mechanism\\(sautoir) from Diderot||%center% as recreated in\\ Collection Calculant ||

||%center% Carry Mechanism\\(sautoir) from Diderot||%center% as recreated in\\ Collection Calculant ||

||%center%%height=200px% http://meta-studies.net/pmwiki/uploads/PA_DiderotMech1.jpg||%center%%height=200px%  http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg||

||%center% Carry Mechanism\\(Sautoir) from Diderot||%center% as recreated in\\ Collection Calculant ||

||%center% Carry Mechanism\\Diderot||%center% as recreated in\\ Collection Calculant ||

||%center% Carry Mechanism\\Diderot||%center% Collection\\Calculant ||





%center% %width=200px%  ||http://meta-studies.net/pmwiki/uploads/PA_DiderotMech1.jpg|| http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg\\Carry mechanism (sautoir)||

||%center% Carry Mechanism||%center% (Sautoir)\\Diderot ||
||%center% (collection Calculant)||

%center% %width=200px%  ||http://meta-studies.net/pmwiki/PA_DiderotMech1.jpg|| http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg\\Carry mechanism (sautoir)||

%center% %width=200px%  ||http://meta-studies.net/pmwiki/PA_DiderotMech1|| http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg\\Carry mechanism (sautoir)||

%center% %width=200px%  http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg\\Carry mechanism (sautoir)

The carry mechanism is the classical "sautoir" as described by Diderot. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is then released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears (which proves impossible if more than 3 or 4 must be moved at once), Pascal used his sautoirs to store potential energy by lifting a weight (the fork) as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for the sautoir to fall causing the next gear to rotate forward by one unit.

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_CNAM_Tardive.jpg|"tardive" Pascaline]] held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with features of the surviving [[http://meta-studies.net/pmwiki/uploads/PA_Dresden.jpg|"Queen of Poland Pascaline"]] held in Dresden.  As with the tardive this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

Other information provided in this site includes [[Operating Instructions for a Pascaline]]

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from brass and mahogany. The task of building this, together with three copies, took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from from brass and mahogany. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" in contrast to most others  of [[Site.SurvivingPascalines|the surviving Pascalines]] (including that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

House of Pascal[^In a note by J. Mesnard cited in an article by Payen, the coat of arms of the Pascal family of Mons consisted of a paschal lamb in gold holding a banner and a "croisetée de gueules" - "En termes de blason ces armes s'énon ceraient : d'azur à un agneau pascal d'argent, tenant une banderole de même, croisetée de gueules. Ces armes étaient primitivement celles de la famille Pascal de Mons, à laquelle appartenait Marguer itela, grand-mère de Pascal. Elles furent adoptées ensuite par la famille Pascal, originaire de Cournon, à laquelle appar tenait Martin, époux de Marguerite et grand-pere de Pascal (Note deJ. Mesnard)." From M Jacques Payen, "Les exemplaires conservés de la machine de Pascal",  //Revue d'histoire des sciences et de leurs applications// vol. 16 n°2., 1963, pp. 161-178. ^]

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from from brass and mahogany. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" in contrast to most others (including that at Dresden) which are "accounting Pascalines" configured to add the currency of the period.

The carry mechanism is the classical "sautoir" as described by Diderot. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.  Thus unlike the Schickard which relied on single rotation from 0 to 9 to make all necessary carries along a row of gears, which proves impossible if more than 3 or 4 must be moved at once, Pascal used his sautoirs to store potential energy by lifting the weight as each gear rotated from 0-9. That stored energy was then ready to rotate the next gear by one unit when the time came for a carry and the sautoir fell.

The carry mechanism is the classical "sautoir" as described by Diderot. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.

House of Pascal[^In a note by J. Mesnard cited in an article by Payen, the coat of arms of the Pascal family of Mons consisted of a paschal lamb in gold holding a banner and a "croisetée de gueules" - "En termes de blason ces armes s'énon ceraient : d'azur à un agneau pascal d'argent, tenant une banderole de même, croisetée de gueules. Ces armes étaient primitivement celles de la famille Pascal de Mons, à laquelle appartenait Marguer itela,grand-mère de Pascal. Elles furent adoptées ensuite par la famille Pascal, originaire de Cournon, à laquelle appar tenait Martin, époux de Marguerite et grand-pere de Pascal (Note deJ. Mesnard)." From M Jacques Payen, "Les exemplaires conservés de la machine de Pascal",  //Revue d'histoire des sciences et de leurs applications// vol. 16 n°2., 1963, pp. 161-178. ^]

House of Pascal[^In a note by J. Mesnard cited in an article by Payen, the coat of arms of the Pascal family of Mons consisted of a paschal lamb in gold holding a banner and a "croisetée de gueules" - "En termes de blason ces armes s'énon ceraient : d'azur à un agneau pascal d'argent, tenant une banderole de même, croisetée de gueules. Ces armes étaient primitivement celles de la famille Pascal de Mons, à laquelle appartenait Marguer itela,grand-mère de Pascal. Elles furent adoptées ensuite par la famille Pascal, originaire de Cournon, à laquelle appar tenait Martin, époux de Marguerite et grand-pere de Pascal (Note deJ. Mesnard). From M Jacques Payen, "Les exemplaires conservés de la machine de Pascal",  //Revue d'histoire des sciences et de leurs applications// vol. 16 n°2., 1963, pp. 161-178. ^]

House of Pascal[^In a note by J. Mesnard cited in an article by Payen, the coat of arms of the Pascal family of Mons consisted of a paschal lamb i gold holding a banner and a "croisetée de gueules" - "En termes de blason ces armes s'énon ceraient : d'azur à un agneau pascal d'argent, tenant une banderole de même, croisetée de gueules. Ces armes étaient primitivement celles de la famille Pascal de Mons, à laquelle appartenait Marguer itela,grand-mère de Pascal. Elles furent adoptées ensuite par la famille Pascal, originaire de Cournon, à laquelle appar tenait Martin, époux de Marguerite et grand-pere de Pascal (Note deJ. Mesnard). From M Jacques Payen, "Les exemplaires conservés de la machine de Pascal",  //Revue d'histoire des sciences et de leurs applications// vol. 16 n°2., 1963, pp. 161-178. ^]

(:tabled:)

House of Pascal

This beautiful replica Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from from brass and mahogany. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which add the currency of the period.

This beautiful replica of a Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from from brass and mahogany. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which add the currency of the period.

of arms evoking\\

that of Pascal

Engraved Coat\\
of Arms\\
House of Pascal

This beautiful replica of a Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from from brass and mahogany. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with some features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which add the currency of the period.

This beautiful replica of a Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from from brass and mahogany. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting hand made machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with some features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

This beautiful replica of a Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from skilfully handmade from brass and mahogany. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials and techniques, but with the capabilities of a modern workshop, the resulting machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with some features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

%center% %width=200px%  http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg\\Carry mechanism

%center% %width=200px%  http://meta-studies.net/pmwiki/uploads/PA_Sortoir.jpg

This beautiful replica of a Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from skilfully worked brass and mahogany. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials, but with the capabilities of a modern workshop, the resulting machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with some features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

beautifully worked\\

Input stylus

2011\\
JM

(:cell:)%newwin%Mini:PA_Wappen.jpg

Bottom carefully\\ worked in the\\
manner of \\the Dresden Pascaline

The input wheels

Chasis and mechanism

Bottom carefully worked in the//
manner of the Dresden Pascaline

This beautiful replica of a Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from skilfully worked brass and wood. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials, but with the capabilities of a modern workshop, the resulting machine (with its entire mechanism, including its carry mechanism, following that embodied in surviving machines and historical records) will work reliably and smoothly. The resulting replica is a re-creation very much in the style of the surviving "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with some features of the surviving Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

This beautiful replica of a Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from skilfully worked brass and wood. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials, but with the capabilities of a modern workshop, the resulting machine (including its carry mechanism following that embodied in surviving machines) will work reliably and smoothly. The resulting replica is a recreation very much like the "tardive" Pascaline held by the CNAM (Conservatoire National des Arts et Métiers) in Paris, but also with some features of the Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

This beautiful replica of a Pascaline was fashioned with great dedication and craftsmanship by Jan Meyer from skilfully worked brass and wood. The task of building this and three others took him hundreds of hours over two full years.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials, but with the capabilities of a modern workshop, the resulting machine (including its carry mechanism following that embodied in surviving machines) will work reliably and smoothly. The resulting replica is a recreation very much like the "tardive" Pascaline held by the CNAM in Paris, but also with some features of the Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

The carry mechanism is the classical "sortoir" as described by Diderot. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) is rotated from 0 to 9 the fork is lifted and is released as the gear passes from 9 to 0.  As the weighted fork falls the attached lever rotates the next gear (the tens) by one unit.

The carry mechanism is the classical "sortoir" as described by Diderot. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) turns up to 9 the fork is lifted and is released as the gear passes from 9 to 0.  As the fork falls the attached lever rotates the next gear (the tens) by one unit.

The carry mechanism is the classical "sortoir" as described by Diderot. It consists of a weighted metal fork with a lever and spring.  As the first gear (say the units wheel) turns up to 9 the fork is lifted and is released as the gear passes from 9 to 0.  As the fork falls the attached lever moves the next gear (the tens) by one unit.

This beautiful replica of a Pascaline was fashioned with great love and craftsmanship by Jan Meyer from skilfully worked brass and wood.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials, but with the capabilities of a modern workshop, the resulting machine (including its carry mechanism following that embodied in surviving machines) will work reliably and smoothly. The resulting replica is a recreation very much like the "tardive" Pascaline held by the CNAM in Paris, but also with some features of the Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

This beautiful replica of a Pascaline was made with great love and craftsmanship by Jan Meyer almost entirely from skilfully worked brass and wood.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials, but with the capabilities of a modern workshop, the resulting machine (including its carry mechanism following that embodied in surviving machines) will work reliably and smoothly. The resulting replica is a recreation very much like the "tardive" Pascaline held by the CNAM in Paris, but also with some features of the Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

This beautiful replica of a Pascaline was made with great love and craftsmanship by Jan Meyer.  It is not a replica of any particular surviving machine, but rather, takes as its task to demonstrate that if the principles of the Pascaline are followed faithfully by a dedicated artisan, using the same sorts of materials, but with the capabilities of a modern workshop, the resulting machine (including its carry mechanism following that embodied in surviving machines) will work reliably and smoothly. The resulting replica is a recreation very much like the "tardive" Pascaline held by the CNAM in Paris, but also with some features of the Pascaline held in Dresden.  As with the tardive this is a "scientific Pascaline" which adds decimal numbers, rather than an accounting machine like many of the others (including that held at Dresden) which are designed to add currency of the time.

This beautiful replica of a Pascaline was made with great love and craftsmanship by Jan Meyer as one of four.

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