MULTIPLE GRIP DISCS MECHANISM FOR JACKS,PROPS,GRIPPING VICES OR THE LIKE DEVICES AND A JACK COMPRISING THE SAME

摘要

A multiple grip discs mechanism for jacks, props, gripping vices or the like devices characterized in that the grip disc consists of two or more plates stacked together and each of the said plates is provided with a hole passing therethrough a stanchion and wherein under load bearing conditions the stack formed by said plates get displaced or deviated from the longitudinal axis of the stanchion to positively grip it thereby increasing load bearing capacity of the mechanism and wherein the bearing pressure on contact zone is reduced and due to which the diameter of stanchion required to support the same load, and the space required for multiple grip discs mechanism are reduced in proportion to the number of plates in the said stack, in comparison with the grip disc mechanism having single grip disc of the prior art.