Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 6761617 | Method and apparatus for machining joint face of work The present invention relates to a method and an apparatus for machining a join surface of a workpiece, and solves the problem of the leakage attributable to the streaks formed by the abrasive grains thereby to provide the join surface having a high hermetic propert... | 07/13/2004 |
| 6652367 | Drill bit grinding device A grinding device includes a rotary grinding wheel having an annular grinding surface, a first grinding seat located in front of the grinding wheel, a sleeve disposed rotatably within a through hole in the first grinding seat, an abrasion measuring device... | 11/25/2003 |
| 6592430 | High-precision machining system A rotation axis of a work spindle and a rotation axis of a spindle primary-axis portion are rotated relative to each other and feeding of a work-piece to a tool is accordingly adjusted, whereby warpage of the tool in accordance with a change in machining ... | 07/15/2003 |
| 6224462 | Grinding machine A grinding machine includes a main spindle on which a grinding wheel is mounted, a spindle head movable relative to a workpiece, a dressing device body provided to be movable relative to the spindle head and a dresser supporting member provided to be mova... | 05/01/2001 |
| 5895311 | Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same An abrasive apparatus adopted to abrade a curved surface of workpiece includes: an abrading head including an abrading tip having a substantially spherical outer surface and a rotating shaft supporting the abrading tip, the abrading head being positioned ... | 04/20/1999 |
| 5738564 | Numerically controlled grinding machine for grinding workpieces, in particular tools A numerically controlled grinding machine for grinding workpieces, such as tools, and other metallic or ceramic elements, comprises a machine bed (1) having fixedly connected to it a rigid, distortion-free portal (9) which has a reinforcing rear wall (13)... | 04/14/1998 |
| 4928434 | Lapping internal surfaces In improved equipment for lapping internal surfaces, use is made of a composite lap, the rod of which is held by the tool spindle and inserted with a marginal degree of clearance into a cone that carries the abrasive shell, and a chucking mechanism locate... | 05/29/1990 |
| 4735019 | Grinding head The grinding head has a bar-like member, on whose free end is mounted a grinding tool with a grinding wheel spindle arranged at right angles to the longitudinal axis of the bar-like member. The grinding tool is driven by means of a work gear and a driving... | 04/05/1988 |
| 4633620 | System for processing of steel billets or the like to remove surface defects Methods and apparatus are disclosed for processing of steel billets or the like to remove surface defects. A material-removing device such as a grinding wheel is automatically controlled to initiate removal of material at points where defects have been de... | 01/06/1987 |
| 4618297 | Method and apparatus for machining racks for steering gear A machine for cutting the teeth of a rack for a variable ratio rack and pinion steering gear employing a helical pinion having a plurality of identical teeth engaged with a rack having some tooth gaps of varying form and angular disposition to the rack ax... | 10/21/1986 |
| 4597226 | Apparatus for sharpening end mills Apparatus for sharpening the face cutting edges of an end mill is comprised of a rotatable abrasive wheel and three platforms adapted to provide accurate positioning in a vertical and two lateral directions. The third platform, which is uppermost and tilt... | 07/01/1986 |
| 4439952 | Portable grinder assembly A portable grinder assembly for use in grinding oversized replacement stator vanes having a high speed air driven rotary carbide cutter situated adjacent a vane support. The vane support is capable of moving the vane in three predetermined directions with... | 04/03/1984 |
| 4262453 | Machine for grinding hard workpieces Machine for grinding hard workpieces, with an arm equipped at one end with a grinding tool, a machine base supporting a table on which the workpiece is mounted, and an arrangement for supplying cutting liquid, which comprises in combination: an arm pivote... | 04/21/1981 |
| 4084349 | Shape grinder and method Grinding apparatus for forming noncircular punching tools comprising a grinding wheel having a cylindrical grinding surface, a rotary table with its axis parallel to the grinding wheel axis and carrying orthogonally movable slides such that one slide at a... | 04/18/1978 |
