Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Motors electrically connected in cascade or tandem
Patent
1982-06-03
1985-12-17
Weldon, Ulysses
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Motors electrically connected in cascade or tandem
72105, 318 98, H02K 1734
Patent
active
045594821
ABSTRACT:
An electric drive system for automotive wheel rim forming equipment having inner and outer forming rolls mounted on driven spindles. The drive system includes separate drives for each forming roll and a control system for maintaining a predetermined speed ratio between the forming rolls in the absence of a working load thereon. The control system further maintains a predetermined torque ratio between the outputs of the drives for the forming rolls during the forming of a wheel rim by the forming rolls.
REFERENCES:
patent: 3353384 (1967-11-01), Kain et al.
patent: 3906764 (1975-09-01), Mueller
patent: 4145901 (1979-03-01), Imai et al.
G.E. Publication, Mechanical Adjustable-Speed Drives, Polydyne A-C, 1101, pp. 121-122, Sep. 22, 1969.
Grotnes Metalforming Systems, Inc.
Weldon Ulysses
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