Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 4805585 | Radius dressing apparatus A dresser carried on a pivotal dresser holder arm is adjustable in position relative to the pivot axis of the arm by a computer control unit using closed loop servo feedback from a position transducer to successively dress different radii and/or shapes (c... | 02/21/1989 |
| 4718197 | Modular industrial blade grinding and honing machine A heavy duty modular blade strip grinding and honing machine is disclosed. The modular machine is constructed with a required number of grind and hone/strop stations, each having an A-frame base anchored to an underlying concrete mass having a coolant dra... | 01/12/1988 |
| 4718196 | Grinding machine workhead fitted with a dressing tool For dressing a rotating grinding wheel which grinds a workpiece held in a chuck, there is mounted on an extension of the chuck, an annular dressing tool having an inner lining of diamond, for example. The dressing annular is accurately centered relative t... | 01/12/1988 |
| 4671018 | Rigid disk finishing apparatus A rigid disk finishing apparatus characterized by an eccentric spindle of small diameter engaging the inner circumference of a rigid disk; a drive mechanism engaging the outer circumference of the rigid disk to rotate the disk around an axis parallel to b... | 06/09/1987 |
| 4489520 | Machine tool attachment A base is securable to the work surface of a machine tool. A centering element, projecting from the base, locates and braces one of a pair of opposed centers in a workpiece while the other center is lapped by a lapping tool carried by the rotatable tool h... | 12/25/1984 |
| 4266377 | Tailstock device A tailstock device for a grinding machine including a pilot shaft rotatably and axially movably supported by a tailstock base, a tailstock body fixedly supported on the pilot shaft, a center carried on the tailstock body in parallel relationship with and ... | 05/12/1981 |
| 4073281 | Truing and dressing apparatus for grinding wheels An apparatus for successively truing and dressing a grinding wheel made of cubic boron nitride (CBN) with a diamond-impregnated truing roll and a metal dressing roll. The truing and dressing rolls are rotatably mounted on a roll carriage which is slidably... | 02/14/1978 |
