File:LeatherResearch 008.jpg
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| Description | The flexing resistance of shoe upper leather is evaluated at NBS by means of the NBS leather flexer. The specimen, in the form of a thin strip, is bent around two small pins or rollers within the reciprocating assembly at the center of the device. Weighted cables passing over pulleys at each end of the machine keep he specimen under tension through movable clamps. The reciprocating action repeatedly bends the specimen around the small rollers, and the flexing endurance of the specimen is determined from the number of flexes before failure. | |||
| Date | ||||
| Source | National Institute of Standards and Technology | |||
| Author | National Institute of Standards and Technology | |||
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This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:04, 13 March 2014 | | 5,738 × 4,449 (14.99 MB) | NISTResearchLibrary (talk | contribs) |
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