Stone working – Tools – Impact
Patent
1977-07-05
1979-03-20
Whitehead, Harold D.
Stone working
Tools
Impact
30168, B28D 126
Patent
active
041448685
ABSTRACT:
Chisel for an impact apparatus comprising a stem with connecting means, in line with said stem a blade-shaped, longitudinal chisel part, the free end of which is provided with a plurality of teeth which are thicker than the blade-shaped part. Extending from between the teeth either straight or undulated grooves are arranged in the blade-shaped part.
REFERENCES:
patent: 523095 (1894-07-01), Young
patent: 1350241 (1920-08-01), Routh
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