Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 5410924 | Shear gripping apparatus and method A torque transfer apparatus and method wherein a device such as a pipe tong is provided with hard metallic inserts (steel) on the tong jaws with thin facing material (bonding key material) which is interposed between the surface of the pipe and the insert... | 05/02/1995 |
| 4202224 | Apparatus for rotating of track bushing by combined static and dynamic torque For use in rotating a bushing of an assembled track, wherein the bushing is press-fitted into apertures of a pair of links, first and second members are securable to one and the other of such pair of links, and a rapidly extendable and retractable cylinde... | 05/13/1980 |
| 4187744 | Apparatus for rotating track chain bushing It is recommended practice to turn each bushing in a track chain of a track-type vehicle which is composed of interconnected bushings and links after a measured amount of wear has occurred to expose different wear surfaces and extend the useful life of th... | 02/12/1980 |
| 4103571 | Hub nut wrench The present invention is a tool used to demount polygonal hub nuts from a threaded axle located within a wheel hub. The tool comprises at least two steel bars slidably and rotatably joined by a buckle pivot. Each end of each bar is equipped with a rounded... | 08/01/1978 |
| 4002090 | Track bush turning tool Disclosed herein is apparatus for rotating the bushings of an assembled and in-place track of a tractor to present new bushing wear areas to the sprockets which engage these bushings. The apparatus includes a clamp member which is capable of applying rota... | 01/11/1977 |
