Standard-length positioning apparatus

Details Standard-length positioning apparatus Standard-length positioning apparatus

1986-05-15

1988-04-12

Smith, Jerry

Boots, shoes, and leggings

364469, 364475, 83 71, 83 73, 83209, 83364, 83365, 83369, 83371, 226 28, B26D 536

Patent

active

047379049

ABSTRACT:
A standard-length positioning apparatus wherein acceleration and deceleration of a driving mechanism for actuating a mechanism for feeding a material is controlled by a digital positioning mechanism according to a position feedback. Marks marked on the material are read by a sensor during the deceleration of the driving mechanism, and the digital positioning mechanism outputs a signal for stopping the driving mechanism when it receives the read-in output of the sensor while the driving mechanism is being decelerated. When a signal from the sensor is not received by the digital positioning means while the drive is being decelerated, the digital positioning mechanism utilizes feedback pulses of a positioning detector to stop the drive.

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patent: 4519868 (1985-05-01), Hoffman
patent: 4697485 (1987-10-01), Raney

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