Polishing machine and method of attaching emery cloth to the pol

Details Polishing machine and method of attaching emery cloth to the pol Polishing machine and method of attaching emery cloth to the pol

1986-03-11

1987-06-23

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51293, B24B 100

Patent

active

046742360

ABSTRACT:
A polishing machine has an upper polishing plate and a lower polishing plate provided below the upper polishing plate. The upper polishing plate has slurry passages. Plugs for supplying slurry are detachably quick coupled to the slurry passages. A piece of polishing pad is bonded to the lower surface of the upper polishing plate. After a spent polishing pad has been removed and a fresh polishing pad has been attached to the lower surface of the upper polishing plate, a hole-cutter is downwardly inserted in each slurry passage until it pierces the fresh polishing pad, thus cutting a hole in the polishing pad.

REFERENCES:
patent: 2432176 (1947-12-01), Schubring
patent: 2598042 (1952-05-01), Dritz
patent: 3978621 (1976-09-01), Janssen

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