English Clock Striking Train
- Title:
- English Clock Striking Train
- Title (German):
- Englisches Schlagewerk
- Collection:
- Reuleaux Kinematic Mechanisms Collection
- Set:
- X. Clock Escapements
- Designer:
- Reuleaux, F. (Franz), 1829-1905
- Manufacturer:
- Gustav Voigt Werkstatt
- Date:
- 1882
- Country:
- Germany
- Voigt Catalog Model:
- X12
- File Name:
- X12.jpg
- Work Type:
- Mechanical model
- Materials/Techniques:
- cast iron and brass on wood pedestal
- Subject:
- Kinematics of Machinery
- Measurement:
- 217 x 220 (millimeters, width x depth)
217 x 220 x 380 (millimeters, width x depth x height) - Description:
- This striking mechanism is sometimes called a rack and snail. The latter refers to shape of a stepped cam mechanism used to count the hours. According to the book by Britten (7th Ed.1956), it was invented by Edward Barlow in 1675. It gradually displaced the count wheel striking mechanism (X11) invented around 1330. It uses a fan damper to control the speed. This is one of Reuleaux's most complicated models and is clearly a dynamic machine rather than a pure geometric mechanism. The input motion in this model is provided by the crank. In an actual system, this regular motion is supplied by the clock escapement as in Models X-1 to X-10. In this respect the combination of the 19th century escapement and striking mechanisms was a mechanical analog of the clock and CPU units of late 20th century computers. [Francis Moon, 2001-00-00]
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.