File:EB1911 Railways - Development of the Working Faces of the Janney Coupler.jpg
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EB1911_Railways_-_Development_of_the_Working_Faces_of_the_Janney_Coupler.jpg (792 × 497 pixels, file size: 74 KB, MIME type: image/jpeg)
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English: Development of the Working Faces of the Janney Coupler. The sides of the square are 6 in., and the centres AA are taken at 2 in. from the top and bottom of the square. The circles A′A′, which are struck with 2-inch radius, define the first portion of the knuckle. The inner circle B has a radius of 1½ in. From its intersection with A′A′ arcs are struck cutting B in two points. These intersections determine the centres of the semicircles CC which form the ends of the respective knuckles. These semicircles and the circles A′A′ are joined by tangents and short arcs struck from the centre of the figure. |
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| Date | published 1911 | |||
| Source | “Railways,” Encyclopædia Britannica (11th ed.), v. 22, 1911, fig. 29, p. 856. | |||
| Author | Unknown author | |||
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 22:48, 27 July 2017 | | 792 × 497 (74 KB) | Bob Burkhardt (talk | contribs) | {{Information |Description ={{en|1=Development of the Working Faces of the Janney Coupler. The sides of the square are 6 in., and the centres AA are taken at 2 in. from the top and bottom of the square. The circles A′A′, which are struck with 2-... |
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