Protective device for roll stands and the like

Details Protective device for roll stands and the like Protective device for roll stands and the like

1978-05-11

1979-10-09

Mehr, Milton S.

Metal deforming

With randomly-actuated stopping

72 30, 318558, B21D 5500, B21B 3300

Patent

active

041701216

ABSTRACT:
A protective device for preventing a machine, such as a reversing roll stand, from receiving a new workpiece unless the machine has been reset after the previous workpiece leaves. The device includes an electronic circuit which is set automatically when the previous workpiece leaves and is reset when the machine is reset. In the example of a roll stand, the circuit permits a reverse pass and another forward pass even though the stand is not reset.

REFERENCES:
patent: 2985043 (1961-05-01), Roberts
patent: 3293513 (1967-01-01), Morton
patent: 3651676 (1972-03-01), Robertson

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