Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1976-04-26
1977-12-06
Whitehead, Harold D.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
5116587, B24B 5504
Patent
active
040609421
ABSTRACT:
A grinding machine wheel guard hood adjusting apparatus, wherein a wheel guard hood is swingably attached to a wheel guard at one end so that the opposite end of the hood may be swung into close proximity with a grinding wheel circumference. A pivot joint is provided on the wheel guard, having its axis parallel to the hood swing axis, and a housing is affixed to the first pivot joint. A screw is rotatably carried in the housing and a stepping motor is carried on the housing to drive the screw in rotatable directions. A second pivot joint, having its axis parallel to the first pivot joint axis is provided on the swingable hood at a point away from the swing axis, and a nut is affixed to the second pivot joint. The nut and screw are threadably engaged, thus providing a variable link between the two pivot points so that as the screw is rotatably actuated, the nut and second pivot point is powered movably in relation to the first pivot joint, thus swinging the hood to desired positions relative to the wheel circumference. Where a wheel dressing device is motor powered by signal means from a motor control, the hood power motor may be controlled from the same motor control source so that the hood may be moved into close proximity with the wheel as the wheel is dressed.
REFERENCES:
patent: 3638364 (1972-02-01), Grove
patent: 3744189 (1973-07-01), Kakumu
patent: 3748788 (1973-07-01), Koppenwallner
patent: 3835595 (1974-09-01), Oshima
Hawkins Kenneth Robert
White William Page
Cincinnati Milacron Inc.
Farrell Thomas M.
Whitehead Harold D.
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