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Description: |
| This tool was shown in the 1883 Cooke & Co. catalogue.
Abstract:
My invention relates to that class of tools which are used in a lathe for catting off bars bey turning a deep, narrow groove therein. They have heretofore been forged out of a piece of bar-steel to the proper thin form at the cutting end, leaving the part to be inserted in the toolholder of the lathe of a larger size, so as to give the required stiffness and strength to the tool. This extra thickness was required to approach as near as possible to the cutting-edge, so that the forging and grinding of the tool was frequent and expensive. My invention has for its object the use of a thin plate of steel for the cutting-tool, requiring no forging, and holding this plate in a suitable block or holder, which shall render it sufficiently rigid up to the point, where it is necessarily thin for the purpose of cutting, thereby producing a tool which requires no forging or grinding, except for sharpening the cutting-edge.
Claim:
The combination of the channeled stock A, the blade B, of uniform section, and the clamping device C D. |
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