Surface-cleansing tool

Details Surface-cleansing tool Surface-cleansing tool

1977-06-29

1979-01-16

Newton, Dorsey

Metal working

Scale remover or preventor

Scraper or scalper

B21C 4300

Patent

active

041341937

ABSTRACT:
A cluster of pins, serving to clean the surface of a workpiece, are slidably mounted in bores of a guide plate which is spring-urged against a metallic anvil, with formation of a clearance between the plate and the anvil in which the heads of the pins can move. The anvil is periodically struck by a ram which is freely reciprocable in a tool housing surrounding the anvil and the guide plate, the housing being provided with a pistol grip carrying a trigger that controls admission of compressed air to a chamber at the rear of the housing which is intermittently vented by the advancing ram to a space communicating with the atmosphere via channels in the anvil and perforations of the guide plate, thereby cooling the movable parts of the tool. The guide plate consists of a hard but light-weight resinous material, specifically polyamide 6.

REFERENCES:
patent: 3359611 (1967-12-01), Kelley
patent: 3680643 (1972-08-01), Cameron et al.

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