Advancing material of indeterminate length – By intermittent material-mover – Adjustable feeder
Patent
1979-11-21
1982-04-27
Christian, Leonard D.
Advancing material of indeterminate length
By intermittent material-mover
Adjustable feeder
226150, B65H 1726
Patent
active
043266584
ABSTRACT:
A device for feeding an elongated band or strip of material in a step-by-step manner toward a material processing station, such as a punch or the like. The device includes a housing having a chamber therein in which is located a reciprocal piston. The piston rod connected to the piston extends out through an opening in the housing and is at the free end thereof connected to a clamping jaw. An adjustable stop is provided in the chamber for controlling the length of the stroke of the piston. Structure for facilitating a deceleration of the piston as it approaches its limits of movements are provided at opposite ends of the chamber. Fluid connections are provided in one of the guide rods supporting the clamping jaw and facilitate a fluid supply to the clamping jaw without the use of external hoses. The control valve structure for the feeding device is mounted on a rotatable valve block structure to facilitate a reversal of the sequence of the feeding stroke.
REFERENCES:
patent: 3485430 (1969-12-01), Scribner
patent: 3537392 (1970-11-01), Ikuss
patent: 4059212 (1977-11-01), Ledgerwood
patent: 4223821 (1980-09-01), McCall
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