Grinder

Details Grinder Grinder

1984-05-04

1986-04-29

Olszewski, Robert P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51166T, 51 3, 51326, B24B 504

Patent

active

045847940

ABSTRACT:
A grinder performs operations ranging from rough grinding to mirror-like finishing of the whole of an elongate peripheral surface of a work rotated around the central longitudinal axis thereof by pressing a grindstone to the work and by shifting the grindstone along the longitudinal direction of the central rotary axis of the work. By providing a rotor on the carriage adapted to move in parallel with the longitudinal axis of the work to be ground and by fixing grindstones different from each other in grain size to a plurality of rotating shafts fixed to the rotor, respectively, a grindstone in desired grain size is, upon rotation of the rotor, selectively brought into contact with the work. The grindstone that has been in contact with the work is rotated by a drive and, at the same time, the pressing force to act upon the work is imparted to the grindstone by a presser. Thus, the work is ground throughout the elongate peripheral surface thereof with the grindstone being pressed thereagainst by the presser and being shifted therealong by the drive.

REFERENCES:
patent: 487160 (1892-11-01), Rivett
patent: 1294024 (1919-02-01), Arter
patent: 2437850 (1948-03-01), Dennis
patent: 2748540 (1956-06-01), St. George
patent: 3006116 (1961-10-01), Knost
patent: 4136489 (1979-01-01), von Allmen
patent: 4306382 (1981-12-01), Ueda
patent: 4331452 (1982-05-01), Causey et al.

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