Cutlery – Pipe and rod cutters – Rotary
Patent
1975-05-22
1976-05-25
Simpson, Othell M.
Cutlery
Pipe and rod cutters
Rotary
30277, 30361, 30367, B23D 2112, B26B 2700, B26D 316
Patent
active
039583295
ABSTRACT:
A tool for cutting cast-iron pipe is disclosed which includes inner and outer rings disposed annularly with respect to each other, a plurality of spring biased cutting pins reciprocally disposed in the inner ring, a plurality of cams disposed around the inner periphery of the outer ring and a motor mechanism for driving the rings relative to each other.
REFERENCES:
patent: 2271582 (1942-02-01), Dixon
patent: 2517355 (1950-08-01), Runnells
patent: 2672682 (1954-03-01), Studebaker et al.
patent: 2747274 (1956-05-01), Willard et al.
patent: 3497261 (1970-02-01), Schares
Clapp Roger A.
Simpson Othell M.
Zatarga J. T.
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