US Patent: 1,036,101
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| Metal Turning Tool
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Patentee:
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| James Hartness (exact or similar names) - Springfield, Windsor County, VT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 09, 1908 |
| Granted: |
Aug. 20, 1912 |
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Joel Havens
"Vintage Machinery" entry for Jones, Lamson & Co.
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Description: |
| Claim:
In order that the invention may be understood, it is necessary to explain the action other cutters which have been used in accordance with the general practice. this kind of work, the cutter is usually carried by a holder which makes possible its adjustment laterally and longitudinally in relation to the work, so that it may be caused to stands at a slight angle to the wall of metal from which the chip is being taken, so that only the extreme edge of this clearance face (which edge forms the cutting edge) is in contact with the metal. This universal practice of giving a lathe tool a clearance subjects the cutting edge to a one sided pressure. This, in turn, necessitates the employment of very blunt edged tools capable of withstanding such one sided pressure. it is obvious that at cutting edge should never be subjected to lateral stress. it cutting edge will stand an enormous strain it the pressure equalized against both faces thereof. |
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