Arrangement in screw thread cutting apparatus

Details Arrangement in screw thread cutting apparatus Arrangement in screw thread cutting apparatus

1990-12-18

1992-12-29

Lorence, Richard

192 clutches and power-stop control

Clutches

Torque responsive

192138, 192143, F16D 4320

Patent

active

051744244

ABSTRACT:
The invention is an apparatus for producing clutching and de-clutching particularly adaptable for use in a tapping attachment for threading holes. The clutching apparatus includes clutching members driven by the driver or driving machine and clutching members carried by the driven part. An intermediate member is provided which provides for clutching engagement and de-clutching between the members on the driving part and the members on the driven part. The clutching apparatus has the capability of producing de-clutching in response to excessive torque applied to the apparatus, and also, it has the capability of producing de-clutching in response to the tap having reached a predetermined depth and the hole being tapped. The apparatus can be built into a tapping attachment or into a tap holding adapter having the capability of quick change release, and also, the mechanism can be built directly into the driving apparatus.

REFERENCES:
patent: 1953182 (1934-04-01), Lyon
patent: 2775327 (1956-12-01), Gearhart
patent: 2940571 (1960-06-01), Bernhard
patent: 3032156 (1962-05-01), Eriksson
patent: 3884334 (1975-05-01), Eriksson
patent: 4041729 (1977-08-01), Bilz
patent: 4599019 (1986-07-01), Ueberall
patent: 4655103 (1987-04-01), Schreiber et al.
patent: 4694944 (1987-09-01), Schmidt

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