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Model: N03 Coupling With Ratchet and Pawl
(Voigt/Reuleaux)
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Model Metadata
Taxonomy:
Voigt
Group:
Ratchet Mechanisms
ID:
N03
Title (English):
Coupling With Ratchet and Pawl
Title (German):
Stummes Zahngesperre
Creator:
Franz Reuleaux
Date Created:
1882-00-00
Manufacturer:
Gustav Voigt Werkstatt
Size:
Base: Width x Depth [198,89]mm; Overall: W x D x Height [198,175,232]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:
Description:
This model consists of two co-axial discs each with its own crank. The dark disc has conventional saw teeth and the rear disc has a single pawl which can engage the ratchet and lock in one direction and slide over the teeth in the other direction. A spring lever is attached to the front shaft whose end slides between two pins on the pawl. Motion of the front crank will move the lever to rotate the pawl onto the ratchet thereby locking the two discs together. If the front crank moves counterclockwise relative to the pawl disc the spring lever acts to disengage the pawl from the ratchet teeth and the two discs can rotate independently. The lever is only spring loaded onto the front axial and can slip relative to the motion of the front crank.
Descr Author:
Francis Moon
Descr Date:
2004-07-00
Image Metadata
Title:
N03. Coupling With Ratchet and Pawl
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/N03.jpg
Size (w x h):
256 x 384

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