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Model: X08 Inverted Graham Anchor Clock Escapement Adapted by Reuleaux
(Voigt/Reuleaux)
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Model Metadata
Taxonomy:
Voigt
Group:
Clock Escapements
ID:
X08
Title (English):
Inverted Graham Anchor Clock Escapement Adapted by Reuleaux
Title (German):
Hemmung mit umgekehrtem Graham-Anker, Uebergangsmodell von Reuleaux
Creator:
Franz Reuleaux
Date Created:
1882-00-00
Manufacturer:
Gustav Voigt Werkstatt
Size:
Base: Width x Depth [217,234]mm; Overall: W x D x Height [217,234,487]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:
Clocks are not pure kinematic mechanisms because their motions are governed by the Newtonian Laws of Motion as well as the geometric constraints between the machine elements. An escapement regulates the energy added each cycle of the pendulum through the falling weight to make-up for the energy loss in the bearings. The classic anchor escapement, invented by George Graham around 1730, consists of a wheel of teeth, driven by the moment of the weight and the gear train and two recoil pallets attached to the pendulum. In the so-called dead-beat Graham anchor the pallets are attached to a twin-arm or circular-shaped holder that sits on top of the escapement wheel. In model X-8, Reuleaux has turned the c-shaped anchor upside down. As the pendulum oscillates, the escapement wheel engages one of the pallets on the pendulum and adds a small impulse while allowing the sheel to advance one tooth pitch.
Descr Author:
Francis Moon
Descr Date:
2004-07-00
Image Metadata
Title:
X08. Inverted Graham Anchor Clock Escapement Adapted by Reuleaux
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/X08.jpg
Size (w x h):
257 x 384

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