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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 |
| 7540815 | In-series two chain continuously variable transmission A continuously variable transmission has an input pulley assembly connected to a first transfer pulley assembly with a first chain and a second transfer pulley assembly connected to an output pulley assembly with a second chain. The first transfer pulley assembly an... | 06/02/2009 |
| 7204774 | One-piece drive pulley and belt guide In one-piece combination, a drive pulley and belt guide for a belt-driven machine. The pulley has a belt-driving section configured for engagement by the belt and a belt-guiding section integral with the belt-driving section. The belt-guiding section has a conically... | 04/17/2007 |
| 7011002 | Lathe apparatus The lathe provided in accordance with the invention is designed to address the needs of today's bowl and spindle turners. In an exemplary embodiment, the lathe of the invention comes equipped with a 2 hp DC BALDOR motor and a state-of-the-art 3 hp MINARIK pulse-widt... | 03/14/2006 |
| 6779952 | Stepless speed change bench drill This invention relates to stepless speed change bench drill, comprising a pedestal, a vertical post mounted on the pedestal, a worktable and a cabinet mounted on the vertical post, a driving shaft and a main shaft mounted on the upper portion of the cabinet, a motor... | 08/24/2004 |
| 6752259 | Fixed shaft cat drive A gear reducer having a hollow shaft is telescopically mounted on the upper end of a vertical conveyor drive shaft. The gear reducer is removed for repair by raising the gear reducer housing to separate the hollow shaft from the drive shaft while the drive shaft rem... | 06/22/2004 |
| 6364794 | Variable speed transmission assembly A vehicle drive assembly includes a directional control transmission assembly and a variable speed drive assembly. A transmission drive belt extends between the variable speed drive assembly and the directional control transmission assembly to transmit fo... | 04/02/2002 |
| 5298000 | Infinitely variable cone pulley transmission A cone pulley transmission is disclosed which includes an infinitely actuatable and adjustable transmission wherein an axially displaceable cone pulley disc is adjustable by application of hydraulic tensioning so as to generate the pressure forces acting ... | 03/29/1994 |
| 4964841 | Continuously variable transmission A continuously variable transmission is provided with a driving pulley comprising a stationary half pulley fixed to a driving shaft and a movable half pulley, and a driven pulley comprising a stationary half pulley fixed to a driven shaft and a movable ha... | 10/23/1990 |
| 4928956 | Speed-adjusting mechanism of a tread mill The present invention provides a speed adjusting transmission mechanism for adjusting the speed of a rotative belt of a tread mill which comprises an adjustment transmission shaft provided movably between an output shaft of a motor and a driven shaft asso... | 05/29/1990 |
| 4792134 | Treadmill with improved adjusting mechanism A speed adjusting mechanism for adjusting the speed of an endless belt of a treadmill includes a speed variable V-belt drive mechanism which has two pairs of cone-shaped discs mounted coaxially on a transmission shaft disposed between an output shaft of a... | 12/20/1988 |
| 4768997 | Belt drive system for dual input transmissions/transaxles A two belt drive system is disclosed for lawn and garden tractors and other vehicles especially of the type including a variable speed transmission/transaxle having a constant speed rotational input, a variable speed rotational input, and an output speed ... | 09/06/1988 |
| 4698048 | Variable speed tractor transmission and single lever control A drive mechanism for a small tractor combines a variable speed V-belt transmission with a forward-reverse gear transmission wherein both transmission are controlled by natural movement of a single control lever within a gate means. An optional second for... | 10/06/1987 |
| 4502679 | Motorized variable speed treadmill A motor driven treadmill having a speed control operated by the user and an elevation control operated by the user so that the user can vary the speed and the inclination of the treadmill as desired both at the start and during exercise. Spaced elevation ... | 03/05/1985 |
| 4176560 | Variable speed drive A variable speed drive for a riding lawn mower or the like has a double pulley variable speed sheave assembly coupled between a driving pulley and a driven pulley by first and second V-belts, respectively. The sheave assembly is carried at one end of a be... | 12/04/1979 |
| 4132121 | Variable speed drive A variable speed drive for a riding lawn mower or the like has a double pulley variable speed sheave assembly coupled between a driving pulley and a driven pulley by first and second V-belts, respectively. A mechanical control linkage is operable to shift... | 01/02/1979 |
| 4128017 | Variable speed drive A variable speed drive for a riding lawn mower or the like has a double pulley variable speed sheave assembly coupled between a driving pulley and a driven pulley by first and second V-belts, respectively. The sheave assembly is carried on a pivot arm piv... | 12/05/1978 |
| 3972244 | Variable drive bicycle transmission The specification discloses a transmission for varying the mechanical advantage in the power train of a bicycle. The transmission includes a drive sprocket attached to one wheel of the bicycle for driving the wheel and a fixed pitch sheave mounted on the ... | 08/03/1976 |
