Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1983-09-15
1985-07-02
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51123R, 74110, B24B 516
Patent
active
045259542
ABSTRACT:
A variable speed elecric motor (74) drives a crank (78) which in turn pushes a push arm (82) against a pivotally mounted drive lever (58), for swinging it through a drive stroke, and then retracting the push arm (82) to allow a spring (72) to return the drive lever (58) through a return stoke. The spring (72) moves the drive lever (58) towards a guide member (92) which is adjustable in position for changing the amplitude of the stroke. The moving end of the drive lever (58) is attached to a drive bar (48) which in turn is attached to and drives a plurality of pin assemblies (44) which serve to locate and drive oscillating members (114) which contact one surface of a lens (116). The opposite surface of the lens (116) is in contact with rotating tool (112) supported on a variable speed spindle (10). The lens (116) is attached to one of the tools (112, 114) and a polishing compound is located between the lens (116) and a surface of the other tool. The drive pins (44) are carried by support arms (46) which are clamped (126) onto the reciprocating drive rod (48).
REFERENCES:
patent: 2082334 (1937-06-01), Harcourt
patent: 2203695 (1940-06-01), Murphy
patent: 2693708 (1954-11-01), Baer
patent: 3037331 (1962-06-01), Dipprey
patent: 3169350 (1965-02-01), Corman
Barnard Delbert J.
Whitehead Harold D.
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