Reversing Belt Transmission with Friction Wheels
- Title:
- Reversing Belt Transmission with Friction Wheels
- Title (German):
- Wechselgetriebe mit Doppelscheiben für Zentrifugen
- Collection:
- Reuleaux Kinematic Mechanisms Collection
- Set:
- Y. Reversing and Shifting Belt and Gear Mechanisms
- Designer:
- Reuleaux, F. (Franz), 1829-1905
- Manufacturer:
- Gustav Voigt Werkstatt
- Date:
- 1882
- Country:
- Germany
- Voigt Catalog Model:
- Y9
- File Name:
- Y09.jpg
- Work Type:
- Mechanical model
- Materials/Techniques:
- cast iron and brass on wood pedestal
- Subject:
- Kinematics of Machinery
- Measurement:
- 460 x 282 (millimeters, width x depth)
460 x 298 x 185 (millimeters, width x depth x height) - Description:
- This model is a compound mechanism consisting of a belt drive transmission and a friction wheel coupling. Belt drive mechanisms are found in the V-series of models and a similar friction wheel device can be seen in Models Y-10 and Y-20. In Model Y-9, a crank wheel rotates a small wheel that turns between two discs aligned on axes perpendicular to that of the drive wheel. The two discs turn by fiction in opposite directions. One disc wheel is coupled to a belt drive that turns a pulley on an axis parallel to that of the friction wheel. The other disc wheel is coupled to a belt drive in which the belt is crossed and rides over another pulley fixed to the same axes as the first pulley. Both the direct drive belt pulley and the crossed belt pulley move with exactly the same rotary motion. As an added feature, there is a lever-actuated rack and partial pinion that can move the small friction wheel between the larger discs, thus changing the speed ratio between the crank wheel and the belt motion. [Francis Moon, 2004-07-00]
The 220 models in Cornell University’s Reuleaux Collection were built in the late 19th century to demonstrate the elements of machine motion, as theorized by the German engineer Franz Reuleaux. The University acquired the models in 1882 for use in teaching and research. The Reuleaux models are classified according to the alphanumeric schema employed in the catalog of the manufacturer, Gustav Voigt. The letter in a model's ID (e.g., B14 or S35) refers to a class of mechanism; the number is a specific instance of the class. This classification scheme is a simplified version of the taxonomy of machine elements elaborated in Reuleaux's work. - Repository:
- Sibley School of Mechanical and Aerospace Engineering, Cornell University
- Format:
- Image
- Rights:
- Photography credit: 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 Reuleux collection of kinetic machines 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, including but not limited to, editorial, commercial, advertising, web use and display by third parties not affiliated with Cornell University are reserved by the photographer. The written permission of any copyright and other rights holders is required for distribution, reproduction, or other use that extends beyond what is authorized by fair use and other statutory exemptions. Responsibility for making an independent legal assessment of an item and securing any necessary permissions ultimately rests with persons desiring to use the item. For questions about this item or other items please contact the Physical Sciences Librarians at pslref@cornell.edu.