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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 5967349 | Spring tab shim support in rotary shank coupler A coupler is provided for a railroad rotary dump car. The coupler comprises a coupler housing, a coupler head, a buff loading shim, and as most preferred, a plurality of spring tabs, and spring tab fasteners. The coupler housing defines a coupler cavity w... | 10/19/1999 |
| 5511676 | Coupler yoke with tapering key slot reinforcement A coupler yoke for a coupler of a railway vehicle is constructed with a nose portion which is reinforced by a raised region which surrounds the forward end of the key slot. A tapered buttress extends along the length of both sides of the key slot. The wid... | 04/30/1996 |
| 5427257 | Drawbar assembly yoke casting An integral yoke member casting having a back wall portion, a first side wall portion formed integral with the back wall portion adjacent a first outer edge thereof. The first side wall portion has a front face portion which is engageable with a rear face... | 06/27/1995 |
| 5320229 | Yoke for coupling railway cars utilizing a drawbar assembly A railway car yoke having a rear end portion, a body portion, a top forward portion and a bottom forward portion. Each of the top forward portion and the bottom forward portion include a thickened portion through which one aperture is formed to receive a ... | 06/14/1994 |
| 5193699 | Center sill with short yoke member for converting from coupler to drawbar arrangement without modifying center sill The present invention relates to a railway car coupler arrangement whereby a standard yoke, follower, and draft gear are removed from the center sill and replaced with a short yoke member, a spacer block member and slackless drawbar arrangement, namely, a... | 03/16/1993 |
| 5096076 | Type E coupler yoke A coupler yoke for an E-Type coupler is constructed with a blunt nose by foreshortening the length of the nose. The nose length is 3 inches as measured from a point at the forward most part of a semicircular end of the keyslot to the forward most end of t... | 03/17/1992 |
| 4420088 | Rotary railroad car coupler assembly with a horizontal key/slot arrangement A rotary F-type railroad car coupler is described as having a rotary connector which is mounted for rotation within a cylindrical opening in the front end of the yoke. The rotary connector has an opening which extends longitudinally through the connector ... | 12/13/1983 |
| 4230228 | Pin type solid butt rotary coupler A rotary type railroad car coupler is provided with a symmetrical and invertible yoke. A yoke collar, constructed so as to be capable of being reversible, is disposed within a cavity of the yoke. In one preferred embodiment, a pin connecting a shank of th... | 10/28/1980 |
