Turning – Severing or cut-off – Interrelated means for tool infeed and circumrotation
Patent
1995-03-30
1997-03-11
Rada, Rinaldi I.
Turning
Severing or cut-off
Interrelated means for tool infeed and circumrotation
82 72, 82 78, 82101, 82113, 83631, B23B 514
Patent
active
056090811
ABSTRACT:
A portable round tube cutter has a hollow central shaft through which passes a length of tubing to be cut. A transmission gear jacket is axially slidable along the shaft and rotates with the shaft. A tool chuck has a tubing cutter that is manually movable into the tubing to cut the tubing at a desired location. The tool is fed into and away from the tubing by a manually operable gear engaging the transmission gear jacket to cause axial movement of the jacket along the central shaft. Such axial movement rotates a transmission gear which, in turn, is engaged with a rack on the cutting tool mount to move the cutting tool either towards or away from the tubing. A clamping device is also included to clamp the length of tubing in the desired cutting position.
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patent: 4750393 (1988-06-01), Yamagata
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patent: 4881399 (1989-11-01), Bocharov et al.
Rada Rinaldi I.
Schrock Allan M.
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