发明名称 MINER CUTTING BIT HOLDING APPARATUS
摘要 A bit holder for attachment of a mining cutting bit to a driven element is provided. The bit holder includes a base member which may be attached to the driven element. The bit holder is provided with a forward body member having forward and rearward surfaces and a bore for receiving therethrough the extended shank of a cutting bit. A rearward member is also attached to the base member and includes an anvil portion having an anvil surface spaced from and facing the rearward surface. A reinforcement member is provided between the rearward member and the rearward surface to rigidify the bit holder.
申请公布号 CA2018913(C) 申请公布日期 1996.05.21
申请号 CA19902018913 申请日期 1990.06.13
申请人 JOY TECHNOLOGIES INC. 发明人 OSTERWISE, GEORGE A.
分类号 E21C35/197;(IPC1-7):E21C25/10 主分类号 E21C35/197
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