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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 |
| 4049099 | Motorcycle safety hub A safety hub mechanism which automatically disconnects a driven wheel from a drive train in the event of a mechanical failure of the drive train, thus allowing a continued rotation of the driven wheel.... | 09/20/1977 |
| 4028954 | Slip-free sheave or pulley A slip-free sheave or pulley has a housing forming a carrier roller with a circumferential groove and beads bulging out of the side walls of said groove. Inside the carrier roller is a control ring and a force ring arranged partially side by side. A journ... | 06/14/1977 |
| 4019412 | Torque release wrench The invention described herein is a ratchet-type torque release wrench for the precise setting of the residual axial tension (clamping force) to be retained within a threaded fastening system under installation, wherein as the threaded fastening system's ... | 04/26/1977 |
| 4008636 | Ratchet wrench The ratchet wrench of this invention is of two piece construction comprising a rigid pawl handle, and a spring strap cooperating with the pawl handle. The pawl handle has a squared-off end and is provided with two integral pawl teeth extending from one si... | 02/22/1977 |
| 4004667 | Overload clutch with zero parasitic torque An overload release clutch having a driving rotor mounted on an input shaft and a driven disk mounted on an output shaft. A shuttle rotor having saw-tooth shaped teeth on its perimeter rides on a splined hub which is an integral part of the driving rotor ... | 01/25/1977 |
| 3997042 | Aircraft engine coupling A torque responsive coupling includes an intermediate coupling member with helical splines thereon selectively engageable with first and second axially spaced helically splined coupling discs connected respectively to an engine power shaft and to a gear r... | 12/14/1976 |
| 3993178 | Free-wheeling mechanism A free-wheeling mechanism, comprised of a shaft with threaded ends; two fixed cones joined thereto by means of said threadings; a movable cone, one of the ends of which includes a hollow portion into which one of the fixed cones fits on a ball bearing and... | 11/23/1976 |
| 3990550 | Shaft coupling An overrunning clutch for transmitting rotary power in one direction and preventing the transmission of rotary power in an opposite direction. A shaft coupling being disposed for rotary movement within the overrunning clutch to provide a locking mechanism... | 11/09/1976 |
| 3960253 | Positive engagement clutch A heavy duty dog clutch has co-axial driving and driven shaft elements each with a toothed connection to an intermediate sleeve that is axially displaceable to make and release one of said connections. The toothing of the releasable connection is helicall... | 06/01/1976 |
| 3943894 | Internal combustion engine with clutch transmission An internal combustion engine having a plurality of pairs of pistons, each piston having a fixed connecting rod operating a ratchet on the crankshaft through a crank and pawls. The ratchet for each piston is coplanar with the connecting rod, and the two p... | 03/16/1976 |
| 3935934 | Releasable axial clutch A releasable, self-locking axial clutch for firmly coupling two shafts having axially relatively movable end portions secured to their respective ends and an axially displaceable clutch piece between the end portions for transmitting a torque therebetween... | 02/03/1976 |
