Method and apparatus for automatically realigning a machine elem

Details Method and apparatus for automatically realigning a machine elem Method and apparatus for automatically realigning a machine elem

1976-04-29

1977-08-30

Botz, Eugene G.

Registers

Transfer mechanism

Traveling pawl

318632, G05B 1918, G06F 1546

Patent

active

040456609

ABSTRACT:
A method and apparatus are disclosed for automatically realigning a machine element to a predetermined position after an interruption of power to a drive mechanism coupled to the machine element. After the termination of power, the apparatus measures a displacement of the machine element during a predetermined period of time; and this displacement is stored in a nonvolatile memory. When power is restored to the drive mechanism, the apparatus is operative to automatically move the machine element back through a distance equal to the stored displacement. Consequently, the machine element realigns to the position it had before the power interruption.

REFERENCES:
patent: 3802622 (1974-04-01), Nishimura et al.
patent: 3889105 (1975-06-01), Schneekloth

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