Boots – shoes – and leggings
Patent
1975-11-07
1978-09-05
Gruber, Felix D.
Boots, shoes, and leggings
364110, 318625, 318 85, G06F 1546, B21D 502
Patent
active
041124936
ABSTRACT:
A rear gauge assembly includes a gauge bar extending between two carriages, each carriage being mounted to a housing mounted to the rear of a press brake bed and having a lead screw and motor associated with it. Front gauges are provided on carriages on a pair of similar housings mounted to a rail mounted to the front of a press brake bed, each of these housings also having a lead screw and motor for driving its respective carriage. A microcomputer is employed to control the two motors for synchronizing movement of the rear gauge carriages with each other while driving the rear gauge, and to control the two motors for the front gauge while the front gauges are being driven to synchronize movement of front gauges with each other. The same synchronizing techniques for two lead screws are employed on a new type of ram drive for press brakes incorporating two ram drive screws, with a motor for each screw, the motors being synchronized by the controller.
REFERENCES:
patent: 2443657 (1948-06-01), King
patent: 3549948 (1968-01-01), Jaeschke
patent: 3593094 (1971-07-01), Katsumaru
patent: 3874205 (1975-04-01), Roch et al.
Hadley Chris L.
Roch Gerald V.
Gruber Felix D.
Hurco Manufacturing Company Inc.
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