Machine for cutting precious stones

Details Machine for cutting precious stones Machine for cutting precious stones

1980-05-07

1982-04-06

Whitehead, Harold D.

Stone working

Precious stone working

B28D 500

Patent

active

043230504

ABSTRACT:
A machine particularly useful for sawing diamonds and other precious stones comprises a pair of horizontally-spaced posts on a stationary frame, each post having a socket open at its upper end of rotatably supporting the horizontal trunnions of a vertical sawing disc holder, each open socket being closable by a cap carried on the inner face of a cover pivotably mounted to each of the posts. The described machine further includes a swingable arm pivotably mounted at one end to the stationary frame, a workpiece holder carried by the opposite end of the swingable arm and rotatable about its longitudinal axis, a threaded pin fixed to the workpiece holder and rotatable therewith about the longitudinal axis of the swingable arm, and a stop fixed to the swingable arm and engageable by the threaded pin to locate the workpiece holder at a predetermined angular position with respect to the swingable arm and to the vertical sawing disc holder.

REFERENCES:
patent: 835964 (1906-11-01), Losser
patent: 2384253 (1945-09-01), Jearum
patent: 3445968 (1968-05-01), Haase
patent: 3897772 (1975-08-01), Averbuch

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