US Patent: 756,405
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| Milling-Machine
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Patentee:
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| William Porteous (exact or similar names) - Avondale, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 24, 1900 |
| Granted: |
Apr. 05, 1904 |
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Joel Havens
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Description: |
| Abstract:
My invention relates to that class of milling-machines especially designed for milling or dressing the nut-faces of brass valve-bodies and fittings of the like character; and it has for its object the production of a machine which can simultaneously mill or dress two opposite faces and which is simple and efficient in its action and automatic in its operation in causing the work-carrying table to travel back and forth between the cutters and to turn the work to present new faces to be cut.
Claim:
In a milling-machine of the character de-scribed, the combination of an automatically-operated work-carrying table, means for reciprocating said table back and forth between a pair of revoluble cutters, a work-carrying spindle journaled in said table, and means for automatically indexing and locking said work carrying spindle at the end of the stroke of the table and holding the same locked until it reaches the opposite end of its stroke. |
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