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Model: T02 Parallel Link Mechanism
(Voigt/Reuleaux)
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Model Metadata
Taxonomy:
Voigt
Group:
Parallel Guide Mechanisms
ID:
T02
Title (English):
Parallel Link Mechanism
Title (German):
Kreuzparallel-Lineal
Creator:
Franz Reuleaux
Date Created:
1882-00-00
Manufacturer:
Gustav Voigt Werkstatt
Size:
Base: Width x Depth [181,176]mm; Overall: W x D x Height [239,245,257]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 contains several variations of the so-called 'lazy tongs' mechanism. The principal constraint consists of crossed links with a center pin and slider pins in slots in two parallel links. Closing the angle between the crossed links moves the two parallel links apart while maintaining the vertical orientation of these two links. An extension of this mechanism is the connection of two or more pairs of crossed links with center pins that will amplify the relative motion of the two parallel links for a given change in angle of the crossed links. This constitutes an exact parallel mechanism in contrast to the approximate parallel mechanism of Models T3-T10. Variations of the lazy tongs mechanism have appeared in the history of machines including the manuscripts of Leonardo da Vinci (c.1500), and the machine books of Jacque Besson (C. 1570), and Ramelli (c. 1580). A similar mechanism has been used in electric trains in the power pickup mechanism sometimes called a pantograph. It has also been used in hydraulic lift devices from automobile jacks to mobile worker lift platforms.
Descr Author:
Francis Moon
Descr Date:
2003-07-01
Image Metadata
Title:
T02. Parallel Link Mechanism
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/T02.jpg
Size (w x h):
384 x 288

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