File:Britannica Dynamometer 8.jpg
Britannica_Dynamometer_8.jpg (438 × 216 pixels, file size: 18 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: W. Froude’s belt dynamometer. The guide pulleys G1, G2 are carried upon an arm free to turn about the axis O. H is a pulley to guide the approaching and receding parts of the belt to and from the beam in parallel directions. Neglecting friction, the unbalanced torque acting on the beam is 4r {P − p} ℔ ft. If a force Q acting at R maintains equilibrium, QR/4 = (P − p)r = T. Q is supplied by a spring, the extensions of which are recorded on a drum driven proportionally to the angular displacement of the driving pulley; thus a work diagram is obtained. |
| Date | |
| Source | Encyclopædia Britannica, 1911 |
| Author | Encyclopædia Britannica, Volume 8, Slice 9., available freely at Project Gutenberg |
Licensing
|
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
|
This image comes from the Project Gutenberg archives. This is an image that has come from a book or document for which the American copyright has expired and this image is in the public domain in the United States and possibly other countries.
This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:05, 19 February 2011 | | 438 × 216 (18 KB) | Keith Edkins | =={{int:filedesc}}== {{Information |Description={{en|W. Froude’s belt dynamometer. The guide pulleys G<sub>1</sub>, G<sub>2</sub> are carried upon an arm free to turn about the axis O. H is a pulley to guide the approaching and receding parts of the bel |
File usage
The following 2 pages use this file:
