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Model: Helical Worm Gear Pair [Endless Screw]
(Voigt/Reuleaux)
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Model Metadata
Taxonomy:
Group:
ID:
Title (English):
Helical Worm Gear Pair [Endless Screw]
Title (German):
Creator:
Date Created:
1950-00-00
Manufacturer:
Size:
Medium:
Brass and steel
Rights:
For educational use only. All rights reserved by the contributor(s) and publisher(s).
Audience:
General public
Keywords:
gear, endless screw, worm drive
Description:
This gear pair model was created by the Illinois Gear & Machine Co Chicago. Cornell University acquired a set of 15 models around 1950. A similar set can be found at Ohio State University. The so-called "endless screw" is a very old mechanism and can be found in machine drawings of Renaissance artist-engineers such as Francesco di Giorgio Martini and Leonardo da Vinci. The worm drive converts high speed motion about the horizontal axis [as shown in the model] into slower rotary motion about a horizontal axis perpendicular to the drive axis. The straight or right angle worm drive is generally not back drive-able; i.e. one can only move the pair through the helical screw. However, the helical worm gear pair can be driven from either the higher-speed helical worm or though the larger slow-speed gear with helical teeth. [See also the Cornell Reuleaux-Voigt model C-9]
Descr Author:
Francis Moon
Descr Date:
2005-00-00
Image Metadata
Title:
005
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/Chicago/small/005.jpg
Size (w x h):
500 x 375

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