Double driving device for machines

Details Double driving device for machines Double driving device for machines

1985-06-26

1987-08-25

Shoop, Jr., William M.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Mechanically coupled in fixed ratio of movement

318 46, 318 5, H02P 774

Patent

active

046895272

ABSTRACT:
This invention provides a double driving device which includes two motors, sharing a same common shaft or having their shafts linked together, and a control circuit. The two motors have different horse power and are used in machines, such as presses or shearing machines, which always use only one motor with less power to operate while the machines is not loaded but both of the motors while the machine is loaded so as to save the energy consumed unnecessarily during periods of no practical work. The control circuit is used to supply the intermittent operation of the motor with greater horse power.

REFERENCES:
patent: 1954132 (1934-04-01), Iversen
patent: 2531044 (1950-11-01), Hibbert et al.
patent: 2652919 (1953-09-01), Jochem
patent: 2780114 (1957-02-01), Breuer et al.
patent: 2958302 (1960-11-01), Frankel et al.
patent: 2996876 (1961-08-01), Beneditz
patent: 3798519 (1974-03-01), Habisohn
patent: 3952235 (1976-04-01), Peters
patent: 3959699 (1976-05-01), Brail

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