Clemens’s Jointed Coupling
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- Title:
- Clemens’s Jointed Coupling
- Title (German):
- Clemens'sche Kupplung, durch Reuleaux vereinfacht, sehr lehreiches Modell mit vielen Verstellungsresultaten
- Collection:
- Reuleaux Kinematic Mechanisms Collection
- Set:
- P. Jointed Couplings
- Designer:
- Reuleaux, F. (Franz), 1829-1905
- Manufacturer:
- Gustav Voigt Werkstatt
- Date:
- 1882
- Country:
- Germany
- Voigt Catalog Model:
- P3
- File Name:
- P03.jpg
- Work Type:
- Mechanical model
- Materials/Techniques:
- cast iron and brass on wood pedestal
- Subject:
- Kinematics of Machinery
- Measurement:
- 222 x 138 (millimeters, width x depth)
295 x 138 x 180 (millimeters, width x depth x height) - Description:
- One problem that machine designers often face is the transfer of rotary motion from one shaft to another when the shafts are not aligned. The classic universal or Hooke’s joint (Model P-1) is such a mechanism but suffers the property that constant motion on the input shaft produces a non-steady motion on the output shaft. The jointed coupling in Model P-3 uses a symmetric joint to remove the irregularity in motion. This can be seen by measuring the input and output increment angles attached to the two cranks on the model. The model was also designed by Reuleaux to show that if the joint is not operated in a symmetric manner, irregular motion results. Reuleaux cited a patent of Clemens of November 10, 1869 in the 4th edition of The Constructor. [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.