Gem faceting machine

Details Gem faceting machine Gem faceting machine

1986-02-14

1987-12-29

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51216ND, B24B 722

Patent

active

047151480

ABSTRACT:
A gem faceting machine has a main working spindle which can be pivoted in a vertical plane to obtain various inclinations of its axes, further being amenable to height adjustment and being capable of being rotated about its own axis, there being means for latching the rotational position of the spindle in particular positions as well as in positions in-between the particular positions, a multiple gem mounting structure includes a multiple chuck mounting element connected to the spindle for being turned therewith, and having a plurality of bores containing sleeves which in turn receive pin receiving spindles serving as rotatable chucks a rotatable and position arrestable actuating element and cover has a circle of latch bores and a central drive element coupled for rotation to the pin receiving spindles by means of gear pairs; an indexing pin holds the cover in one of the positions defined by the bores; and

REFERENCES:
patent: 515595 (1894-02-01), Linden
patent: 1575156 (1926-03-01), Ecaubert
patent: 3466813 (1969-09-01), Leibowitz
patent: 3811229 (1974-05-01), Montgomery

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