Cylinder machine with improved spherical bearing

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: STAY, SCOTT W, WIAND, RONALD C, SELMAN, JOEL M
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung: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.