Document Type and Number:
Japanese Patent JPS5315442
Kind Code:
B2
Abstract:
A support by which a reciprocating air hammer of the type having an elongated body or barrel is pivotally supported on the bucket supporting boom arm of a conventional power shovel, is modified to enclose the hammer body and to muffle the air percussively discharged from the hammer body.
Application Number:
JP11041272A
Publication Date:
May 25, 1978
Filing Date:
November 06, 1972
Export Citation:
International Classes:
B25D17/12; E04G23/08