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Model: 138 Gravity Drop Ore Stamp
(Voigt/Reuleaux)
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Model Metadata
Taxonomy:
Walker
Group:
[Nos. 129-144] Clock Escapements, Power Hammers and Punch
ID:
138
Title (English):
Gravity Drop Ore Stamp
Title (German):
Creator:
William M Clark
Date Created:
1930-00-00
Manufacturer:
Size:
38.7cm x 38.7cm
Medium:
Cast aluminum and wood (painted) on a vertical panel.
Rights:
For educational use only. All rights reserved by the contributor(s) and publisher(s).
Audience:
General public
Keywords:
Description:
In this model, sharp falls of the vertical rod are derived from the mutilated rotating wheel or pinion. This pinion acts upon the teeth in the rod and raises it until all teeth have meshed; then the rod falls. These [devices] are used for crushing rock to extract the ore and are generally mounted in gangs, having a large number in line. [Virginia Downward & William M. Clark, 1930] [Editorís Note: This device is similar to the Clark model 137 in that the motion of the hammer depends on the physics of gravity and not on geometry alone. Therefore, it is not a pure kinematic mechanism. The constrained motion of the partial pinion and the hammer is similar to a rack and pinion mechanism. This device is described in the mechanical movements catalog of Henry T. Brown, 1868, in Figure 351. FCM]
Descr Author:
Francis Moon
Descr Date:
2005-00-00
Image Metadata
Title:
138
Rights:
Digital file property of Cornell University Library. Made available under the same terms as a Creative Commons Attribution Non-commercial Share Alike License. For all other uses see KMODDL Rights & Permissions.
Descr:
Date Created:
2006-08-06 23:53:42
URL:
http://kmoddl.library.cornell.edu/stillImages/Clark/small/138.jpg
Size (w x h):
311 x 334

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