Supporting and positioning plate assembly for spectacle frames

Details Supporting and positioning plate assembly for spectacle frames Supporting and positioning plate assembly for spectacle frames

1976-07-13

1977-09-20

Smith, Al Lawrence

Work holders

Relatively movable jaws

Three coacting work grippers

269 73, B25B 514

Patent

active

040492540

ABSTRACT:
A positioning and retaining plate assembly for the controlled location of a spectacle frame comprises three superposed plates slidably mounted in relation to each other. The upper plate, or tray, includes fastening means for a spectacle frame, and is slidable in one direction over the middle plate, or bed plate. The bed plate is slidable in a direction at right angles to the first direction over the lower plate, or base. Locking means are provided for locking the plates in position. The assembly may be mounted on a pedestal provided with a reflective upper surface on which reference axes are marked which can be viewed through apertures provided in the plates.

REFERENCES:
patent: 3071368 (1963-01-01), Harding
patent: 3148873 (1964-09-01), Chandler
patent: 3617046 (1971-11-01), Sotonyi

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