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Model: N19 Double Acting, Friction Wheel Levered Ratchet
(Voigt/Reuleaux)
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Model Metadata
Taxonomy:
Voigt
Group:
Ratchet Mechanisms
ID:
N19
Title (English):
Double Acting, Friction Wheel Levered Ratchet
Title (German):
Zahnschaltwerk mit dopp. wirk. laufendem Gesperre Substitutionsmodell der Druckpumpe
Creator:
Franz Reuleaux
Date Created:
1882-00-00
Manufacturer:
Gustav Voigt Werkstatt
Size:
Base: Width x Depth [291,90]mm; Overall: W x D x Height [331,90,327]mm
Medium:
cast iron and brass on wood pedestal
Rights:
For educational use only. All rights reserved by the contributor(s) and publisher(s).
Audience:
General public
Keywords:
ratchet
Description:
This mechanism uses twin ratchet wheels with opposite directed saw teeth each with its own pawl. The lever has two friction wheels at the top and bottom that alternately engages each ratchet wheel. Attached to the wheels is a pulley which can lift a weight as the lever is cycled back and forth. In his description of this model in the Voigt Catalog, Reuleaux called this a “substitution model for a pressure pump.” The exact analog of this model to a double acting pump is not clear to this writer, however. Friction wheel clutches in the application to ratchets are discussed in Reuleaux’s The Constructor.
Descr Author:
Francis Moon
Descr Date:
2004-07-00
Image Metadata
Title:
N19. Double Working, Friction Wheel Levered Ratchet
Rights:
Jon Reis/www.jonreis.com. Jon Reis Photography grants Cornell University Libraries, and the Cornell College of Engineering the rights to display copyrighted images of the Reuleaux Collection of Kinematic Mechanisms on the Cornell University and National Science Digital Library web sites and for unlimited use in Cornell University Library publications for education purposes only. Rights for all other uses such as editorial, advertising, web use and display by third parties not affiliated with Cornell University are reserved by the photographer.
Descr:
Date Created:
2005-01-19 11:02:16
URL:
http://kmoddl.library.cornell.edu/stillImages/small/N19.jpg
Size (w x h):
384 x 257

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