Machine for grinding ophthalmic glasses

Details Machine for grinding ophthalmic glasses Machine for grinding ophthalmic glasses

1994-02-25

1995-10-24

Kisliuk, Bruce M.

Abrading

Precision device or process - or with condition responsive...

Computer controlled

451384, 451398, B24B 4900

Patent

active

054605628

ABSTRACT:
A machine for grinding opthalmic glasses including a carriage, a clamping shaft carried by the carriage and composed of two shaft parts for clamping therebetween an opthalmic glass blank, and a clamp cooperative with at least one of the shaft parts for exerting an axial force thereon. The clamp includes a motor-speed reducer unit having a motor, transmission elements for transmitting the driving force of the motor to at least one of the shaft parts, a housing enclosing the motor and the transmission elements and mounted relative to the carriage to pivot about a pivot axis, a reaction spring connecting the housing to the carriage, and a control unit associated with the motor and with the spring for varying the driving force of the motor as a function of the variation in the length of the spring.

REFERENCES:
patent: 3012379 (1961-12-01), Kuhlman
patent: 3893264 (1975-07-01), Behnke
patent: 4003165 (1977-01-01), Saun
patent: 4068413 (1978-01-01), Suddarth
patent: 4596091 (1986-06-01), Daboudet et al.
patent: 4829715 (1989-05-01), Langlois et al.
patent: 5022187 (1991-06-01), Longuet et al.
patent: 5053971 (1991-10-01), Wood et al.
patent: 5148637 (1992-09-01), Byron
patent: 5161333 (1992-11-01), Lecerf et al.

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