Coupling between the controlling and actuating member and the wo

Details Coupling between the controlling and actuating member and the wo Coupling between the controlling and actuating member and the wo

1994-01-31

1996-02-27

Larson, Lowell A.

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

72149, 72383, 7245314, 403236, 403338, B21D 905, B21D 700

Patent

active

054938899

ABSTRACT:
A coupling between the piston and cylinder controlling and actuating member and the bending head of a portable pipe bending machine comprising a collar (5) made up of two half collars (5', 5") with concavities complementary with the side wall of the cylinder (3), which are removably joined (6, 6') to each other to clamp the cylinder itself, one of them (5') being rigidly joined (6, 6') to the bending head (1), a coupling which is desired further comprises structure for preventing the axial displacement of the collar (5) upon the cylinder (3), particularly a groove (9', 9") on the collar and a complementary ridge (9) on the cylinder (3).

REFERENCES:
patent: 2560413 (1951-07-01), Carlson
patent: 3018818 (1962-01-01), Swanson
patent: 3231298 (1966-01-01), Tomb et al.
patent: 3848450 (1974-11-01), Dehlbam et al.
patent: 3908425 (1975-09-01), Ware
patent: 4141235 (1979-02-01), Ishihara
patent: 4811589 (1989-03-01), Caporusso et al.
patent: 4838831 (1989-06-01), Rumberger

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