Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1989-10-02
1990-11-13
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
5116589, B24B 4900
Patent
active
049692976
ABSTRACT:
A roll-camber grinding apparatus includes a base having a pair of linear bearings parallelly fixed to a flat face of the base. A sliding seat is slidably mounted on the linear bearings. A power-driven grinding wheel is mounted on the sliding seat. An adjusting screw rod is transversely and rotatably mounted on the sliding seat. A first roller bearing is threadably connected to the adjusting screw rod so that the first roller bearing is moved transversely when the adjusting screw rod is axially rotated. An elongated swinging link is pivoted on the base near the adjusting screw rod and has two opposed first and second sides. A second roller bearing is mounted to the second side of the swinging link. A cam is rotatably mounted to the base near the second roller bearing. A spring member is provided for urging the first roller bearing to abut against the first side of the swinging rod and the second roller bearing to abut against the cam so that the sliding seat and the grinding wheel on the sliding seat can be moved back and forth with a stroke when the cam is rotated one revolution. A step motor, provided for driving said cam to rotate, has a given rotating speed controlled by a frequency-setting circuit.
REFERENCES:
patent: 3552066 (1971-01-01), Gladstone
patent: 4218850 (1980-08-01), Sakai et al.
Rachuba M.
Schmidt Frederick R.
Vigil Thomas R.
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