Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1987-11-30
1989-06-06
Corbin, John K.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51331, B24B 100
Patent
active
048359122
ABSTRACT:
A support disc preferably has an annular periphery, a central opening and a pair of substantially parallel side surfaces. Abrasive packs are disposed on the periphery of the disc in spaced relationship to one another. Each pack is formed from a stack of thin abrasive strips having abrasive particles on one surface. The packs are attached to the disc periphery with opposite ends disposed against the opposite side surfaces of the disc. The packs are preferably tilted in the direction of disc rotation so that the trailing edge of the outermost strip in each pack engages the workpiece. When the angle of tilting is large, the pack ends of the packs may be cut at an angle to facilitate an abutting relationship between adjacent disc packs. In one embodiment, the abrasive wheel is disposable. In another embodiment, only the abrasive packs on the disc (and not the disc) are disposable. In this embodiment, the packs may be bent into a horse-shoe shape and bonded to one another at their peripheries as by resin. In both embodiments, the disc and the peripherally disposed packs can be supported for rotation as by a pair of plates with center holes, each disposed against the packs at an opposite side surface of the disc. A motor arbor can be extended through the center holes of the plates and the disc. A nut attached to the arbor can retain the plates in pressed relationship against the packs on the disc for rotation of the packs against a workpiece.
REFERENCES:
patent: 3872630 (1975-03-01), Ali
patent: 3890746 (1975-06-01), Saegusa et al.
patent: 4437271 (1984-03-01), McAvoy
Corbin John K.
Roston Ellsworth R.
Ryan J. P.
Schwartz Charles H.
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