Reel lifting device

Claim 1

In a lifting device for grasping an object having a hole therethrough, the device having an elongated tubular support member and a toggle member pivotally secured at a point of pivotation to the lower end of the support member and being moveable into an inoperative position wherein it is disposed longitudinally of the support member and an operative position wherein it is disposed transversely of the support member, the toggle member having a first portion extending in one direction from the point of pivotation and a second portion extending in the opposite direction from said point of pivotation and including a lifting member located at and connected to the upper end of the support member and being longitudinally movable relative to the support member through a predetermined distance, the lifting member having a downward, non-lifting position and an upward lifting position, the lifting member in its upper position co-acting with the support member and the toggle member to perform lifting operations, the lifting member having an upper portion for fastening to a lifting cable so that when the lifting member is moved to its upper lifting position the toggle member is pivoted to its operative position, the improvement comprising: an extendable spring within said tubular support member having a first and a second end and having the first end affixed to said lifting member, the spring being extendable between a collapsed condition and an extended condition; a cable within said tubular support member having a first and a second end and having the first end affixed to said spring second end and having the second end thereof affixed to said toggle member first portion at a point on said toggle member first portion displaced away from the said point of pivotation whereby when said lifting member is in its upward position said toggle member is in said operative position and said spring is in its extended condition and wherein said lifting member is in its downward position said toggle member is in it inoperative position and said spring is in its collapsed condition, and wherein said toggle member first portion is heavier than said toggle member second portion whereby when said lifting member is in its lower, non-lifting position said toggle member tends to automatically pivot to its said inoperative position.