Cylinder machine with improved spherical bearing

Details Cylinder machine with improved spherical bearing Cylinder machine with improved spherical bearing

1989-02-16

1990-04-10

Olszewski, Robert P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51 58, 51120, 384906, 403114, 403131, B24B 1300

Patent

active

049148656

ABSTRACT:
An apparatus for lapping of ophthalmic lenses has a spherical bearing for supporting a rod, one end of which carries a lapping tool. The spherical bearing has a race and ball through which the rod is fixedly secured. The ball has a generally vertically extending channel facing the race and the race has a guide pin which slidably extends into the channel thus allowing the ball free pivotal but not free rotational movement with respect to the race.

REFERENCES:
patent: 300539 (1884-06-01), Warwick
patent: 919651 (1909-04-01), Spicer
patent: 3439964 (1969-04-01), Stone et al.
patent: 3621613 (1971-11-01), Grob et al.
patent: 3732647 (1973-05-01), Stith

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