Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7299684 | Automated tool and workspace analysis An automated tool installation and workspace analysis method determines an axis of a fastener in order to determine positioning a fastener actuating tool. A center of gravity of the fastener is determined. The axis of the fastener is calculated based in part on the ... | 11/27/2007 |
| 7237342 | Optical axis adjusting device for use in a laser ruler An optical axis adjusting mechanism disposed on a laser ruler for adjusting an optical axis of the laser ruler is provided. The laser ruler includes a main bracket. The optical axis adjusting mechanism includes a main body rotatably assembled to the main bracket of ... | 07/03/2007 |
| 7131212 | Marking device A marking device of a trimming apparatus includes a light source member, a lever member and a supporting member. The lever member includes a first sustaining arm, a second sustaining arm and a channel formed between the first sustaining arm and the second sustaining... | 11/07/2006 |
| 6817111 | Alignment tool for positioning a cutting tool of a shaping machine An alignment tool for positioning the tip of a cutting tool of a spindle-driven shaping machine is provided with means for accurately and repeatedly locating a cutting tool plane of motion of any angle with respect to the shaping machine's orientation is space, mean... | 11/16/2004 |
| 5318392 | Adjustable fence for drill press A drill press assembly including a spindle supported by a column and base, a work table and an adjustable fence assembly. The adjustable fence assembly includes clamping means permitting the fence to be adjustably mounted on the column of the drill press.... | 06/07/1994 |
| 4356635 | Centering device A centering device for locating a center line of a workpiece to be aligned with the center line of a milling cutter along the direction of cut in a horizontal milling machine. The device comprises a centering pointer and an aligning fixture to be used in ... | 11/02/1982 |
