发明名称 APPARATUS FOR THE GAME OF TUG-OF-WAR
摘要 Apparatus for the game of tug-of-war has an arm (10) supported for pivotal movement on a base (12). Ropes (15) are attached to the upper end of the arm (10). At least one cylinder (16), containing a fluid and a piston (17) is used to restrain the movement of the arm (10). A conduit (20) with a valve (21) in it connects one end of the cylinder (16) to the other end. By opening the valve (21), fluid can flow through conduit (20) to reduce the restraint to movement of the arm (10). A double cylinder embodiment is also described.
申请公布号 AU2863984(A) 申请公布日期 1984.12.04
申请号 AU19840028639 申请日期 1984.05.07
申请人 HUBBARD ROBIN DAVID;ANDERSON BRYAN PATRICK 发明人 HUBBARD, ROBIN DAVID;ANDERSON, BRYAN PATRICK
分类号 A63B21/28 主分类号 A63B21/28
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