Striking bar

Details Striking bar Striking bar

1977-12-27

1980-06-10

Hafer, Albert A.

Tool driving or impacting

Impacting devices

With means for rotating tool

279 193, B25D 900

Patent

active

042068207

ABSTRACT:
This invention relates to improvements in working member assemblies and is described hereinbelow with particular reference to a novel striking bar assembly for use in open front type rock drills.

REFERENCES:
patent: 1649651 (1927-11-01), Bayles
patent: 1822115 (1931-09-01), Shepherd
patent: 2278931 (1942-04-01), Katterjohn
patent: 2385349 (1945-09-01), Curtis
patent: 2477054 (1949-07-01), Gartin
patent: 2776040 (1957-01-01), Schorer
patent: 3797584 (1974-03-01), Bailey et al.

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