Stone working – Tools – Impact
Patent
1988-07-19
1990-04-03
Hartman, Judy
Stone working
Tools
Impact
125 40, B28D 126
Patent
active
049131257
ABSTRACT:
A mineral cutter pick and its pick box are secured together through a spigot and socket connection. Opposed end faces of the pick and holding device that surround the connection have laterally oppositely inclined surfaces at opposite sides of a central plane of the pick extending in the direction of cutting movement. These complementary inclined faces improve the load distribution between the pick and its locking device in use and can also be arranged to restrict the entry of foreign matter into the spigot and socket connection.
Bunting Derek J.
Graham Alexander B.
Hartman Judy
Rachuba Maurina
Sandvik AB
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