| 摘要 |
<p>The here disclosed invention therefore refers to a ratchet with two handles, that may be operated together oe alternatively. Thereby the deviating torque is neutralized and a reversing movement of bolt or nut overcome by holding one and turning the other handle or by counter- rotating one against the other. Here the second handle (2) works on a secondary gear (3), mounted above the turning device. So both handles work in the same direction, but can be put on different angles, so to compensate the deviating torque. Moreover, the invention comprises telescopically extendible levers, so to quickly change torque or angular travel as to given requirement.</p> |
