Tubing bending machine

Details Tubing bending machine Tubing bending machine

1975-02-28

1976-02-03

Lanham, C. W.

Metal deforming

With use of control means energized in response to activator...

Sensing tool or tool-linked part

72 30, 72 32, 72389, 72441, B21D 724

Patent

active

039357210

ABSTRACT:
A tubing bending machine is disclosed comprising a die and cooperating shoe means, means for advancing the die toward the shoe means to bend a pipe positioned therebetween, and a hydraulic piston and cylinder assembly coupled with the shoe means for restricting the movement of the shoe means during bending of the tubing, and for returning the shoe means to a pre-bending position. A linear scale is connected to a piston rod of the piston and cylinder assembly and movable therewith relative to the cylinder of the piston and cylinder assembly. A depth of bend indicator means is adjustably positionable along the linear scale to indicate a selected desired depth of bend reading thereon. Switch means is mounted on the machine in the path of movement of said depth of bend indicator means to be contacted by said depth of bend indicator means as it moves with said linear scale and piston rod of said piston and cylinder assembly during the bending of a tube.

REFERENCES:
patent: 2306223 (1942-12-01), Parker
patent: 2440599 (1948-04-01), Colwell
patent: 2456675 (1948-12-01), Chaille
patent: 2525403 (1950-10-01), Witt
patent: 2867261 (1959-01-01), Traupmann
patent: 3388574 (1968-06-01), Ignoffo
patent: 3429157 (1969-02-01), Huth
patent: 3756058 (1973-09-01), Hamkins

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