US Patent: 867,077
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| Reaming and Tapping Machine
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Patentee:
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| William Porteous (exact or similar names) - College Hill, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 11, 1905 |
| Granted: |
Sep. 24, 1907 |
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Joel Havens
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Description: |
| Abstract:
My invention relates to machines for reaming and tapping valves, cocks and other brass or iron fittings and it has for its object the improved construction of such machines, whereby the output of the machine is greatly increased and the power necessary to drive the same materially reduced and the machine rendered as nearly automatic in its action and as easy to handle as possible.
Claim:
In a machine of the character described, provided with tool carrying spindles and a reciprocating carrier therefor, the combination with a shaft 47 for rotating the spindles, of clutch members 48 and 40 on said shaft, an intermediate shiftable clutch 51, a clutch lever 70 engaging a circumferential groove in the clutch and Provided with double bell-crank arms 72, pivoted spring dogs 73 adapted to engage the arms 72 alternately, the shaft 64 having longitudinal movement controlled by the tool-carrying spindle carrier, coiled springs 67, 68 for connecting the said shaft to an extension of the bell-crank lever 70 and whereby said bell-crank lever is alternately shifted. |
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