US Patent: 4,357,122
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Inserted Blade End Mill
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Patentee:
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Thomas Hollis, Jr. (exact or similar names) - Peterborough, Hillsborough County, NH |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Dec. 17, 1980 |
Granted: |
Nov. 02, 1982 |
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Joel Havens "Vintage Machinery" entry for O.K. Tool Co., Inc.
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Description: |
Abstract:
In inserted blade rotary end mills having tapered blades inserted in axially extending tapered sockets. The improvement of providing longitudinal interfitting serrations on opposed surfaces of both the inserted blades and sockets to prevent twisting of the blades in the sockets. |
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