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US 3,945,154 AGranted
Grinding apparatus and indexing and control means therefor
AssigneeJack Barnes Engineering, Inc.
InventorsJohn O. Barnes, Carl K. Barnes
Life of this patent
Estimating the term…
Abstract
Work is fed to a plurality of longitudinally-spaced belt grinders by a twin-screw feed, with synchronized, non-accumulative rotation of the screws being assured by a clutch on the main drive shaft working in conjunction with a locking arm and cam.
Claims2
Grinding apparatus comprising:
- a plurality of spaced belt grinders, a twin screw feed for conveying work resting in the helical grooves thereof past the grinders, and indexing and control means for effecting synchronized, non-accumulative rotation of the twin-screw feed including a system of gearing operatively connecting the screws, a rotatable clutch and indexing cam on one screw and means for precluding rotation of the clutch consisting of a locking cam on the said one screw and a locking arm selectively engageable with the locking cam.
Dependencies are inferred from the claim text.