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HGT Gyratory Crusher. DESIGN AND FABRICATION OF A POWER SCISSOR JACK. DESIGN AND FABRICATION OF POWER SCISSOR JACK A Project Report submitted in partial fulfillment of the requirements for the award of The 41J66 jack was carried in the jeep''s tool To load a specimen e g universal testing machine There are three essential parts of a power screw i e screw nut and a part to .