Device for centering of optic lenses in a mechanical mounting, i

Details Device for centering of optic lenses in a mechanical mounting, i Device for centering of optic lenses in a mechanical mounting, i

1988-12-23

1990-11-27

Terrell, William E.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51217L, 51217T, 51237R, 82122, 82142, 82903, 74337, 74650, B24B 914, B24B 502, B23B 1900, B23B 314

Patent

active

049726323

ABSTRACT:
For centering of optic lenses in a mechanical mounting, in particular during edge cutting and bevelling, the invention includes a device with a housing (10), which is resistant to twisting and which supports centering spindles (18, 18') with clamping cups (20, 20') thereon, between which clamping cups a lens (L) can be aligned and clamped for a cutting operation. A motor drive (M, R) acts on a torque divider (50) having a guide member (52) between axially and radially supported plates (58, 58'). Their frictional connection through a ring of balls (54) with controllable contact pressure, which is introduced through a pressure piece (62), assures an absolute synchronous running of the split drive shaft (14, 14') which acts on the centering spindles (18, 18') through belt drives (46, 46').

REFERENCES:
patent: 2729118 (1956-01-01), Emslie
patent: 3130604 (1964-04-01), Johnson et al.
patent: 3599377 (1971-08-01), Dartnell
patent: 3732757 (1973-05-01), Cottin
patent: 3750344 (1973-08-01), Raphael
patent: 4552045 (1985-11-01), Inoue et al.
patent: 4596169 (1986-06-01), Inoue et al.
patent: 4612732 (1986-09-01), Delattre et al.
patent: 4766788 (1988-08-01), Yashiki et al.

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