Electricity: motive power systems – With particular motor-driven load device – Power- or motion-transmitting mechanism
Patent
1977-01-17
1980-05-06
Rubinson, Gene Z.
Electricity: motive power systems
With particular motor-driven load device
Power- or motion-transmitting mechanism
318612, 74467, 74609, 318380, 318626, H02K 710
Patent
active
042019354
ABSTRACT:
An improved feed for a D.C. motor driven feed including a feed screw and nut which moves the table of a machine tool through predetermined positions in accordance with orders to change the rate of feed. The improved feed includes a power damping circuit, a switching circuit for electrically coupling the power damping circuit for a predetermined length of time to the D.C. motor whenever there is an order to change the rate of feed, thrust bearings provided in the D.C. motor whereby loads applied to the table are borne by the thrust bears and a cylindrical protective cover coupled to the nut and covering the feed screw such that the bottom inside surface of the cover is in relative near proximity to the feed screw and the top inside surface of the cover is in relative far proximity to the feed screw.
REFERENCES:
patent: 1350540 (1920-08-01), Blood
patent: 2403092 (1946-07-01), Lear
patent: 2553409 (1951-05-01), Frank
patent: 2816566 (1957-12-01), Warren
patent: 3278774 (1966-10-01), Roller et al.
patent: 3795853 (1974-03-01), Whitehouse
Fukuma Nobuo
Kato Yoshito
Indyk Eugene S.
Rubinson Gene Z.
Toyota Jidosha Kogyo Kabushiki Kaisha
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