US Patent: 2,663,978
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| Lapper for carbide tipped tools
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Patentee:
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| Karl L. Lindmark (exact or similar names) - Loves Park, IL |
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Patent Dates:
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| Applied: |
Nov. 03, 1952 |
| Granted: |
Dec. 29, 1953 |
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Jeff Joslin
Vintage Machinery entry for Fenlind Engineering Co.; Rock Mill, Inc.
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Description: |
| This lapping machine was also patented as British patent GB-772,246, and was subsequently improved in patent 2,751,723."The principal object is to provide a machine incorporating a wheel of medium-large diameter having a wide flat rim with a smooth, true periphery for an endless belt of abrasive material that is kept evenly tensioned and running true while drives by means of a smaller motor-driven pulley, the wheel and belt thereby cooperating to provide an endless yielding precision lapping surface to lap or polish on the arcuate contour of the wheel to obtain a micro-finish on the tip of a cemented carbide tool bit accurately to a predetermined angle determined by the setting of a horizontal tool support at a predetermined elevation with respect to the working face of the wheel..." |
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