发明名称 Auger with separate handle and spindle - has holes through handle and spindle for locking pin to increase drilling depth progressively
摘要 <p>The auger which can be used to bore holes in sandy soil near a river or lake so that water can be extracted by a suitable pump, can be used for camping. To save space, the auger consists of a handle which can be separated from the spindle (10) carrying the helical thread (11). The handle has a crosspiece (14) on top of a tube which can be fitted over the spindle, and a peg inserted through holes (12) through the tube and spindle, locking them together. When a hole has been bored as deep as possible, the tool can be removed, cleared of dirt and sand, then the tool lengthened by inserting the peg through holes higher up the spindle so that on reinsertion allows the hole to be made deeper.</p>
申请公布号 FR2480348(A1) 申请公布日期 1981.10.16
申请号 FR19810007072 申请日期 1981.04.08
申请人 PERRONE PIERO 发明人
分类号 E21B10/44;E21B11/00;E21B17/07;(IPC1-7):21B10/44;03B3/06;21C1/00;03B5/04 主分类号 E21B10/44
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