Abstract: A compound lever tool having a pair of interpivoted head levers with jaws and a toggle mechanism consisting of two actuating levers connected to each other by a toggle pivot and each connected to its respective head lever by a head pivot such that movement of the actuating levers towards each other spreads the rearward ends of the head levers apart and causes the jaws to close, the actuating levers each formed from sheet metal and bent to provide an upper and lower surface with each surface having aligned holes adapted to receive the toggle pivot and its respective head pivot. In the preferred embodiment the actuating levers are cloven to separate head pivot-supporting parts from the toggle pivot-supporting parts and adjustable blocks are disposed within the clefts to provide lateral support between the toggle pivot and the respective head pivots.

Abstract: A spreader tool having opposed force arms separately pivotally mounted on a base member for annular movement in opposite directions in response to axial movement of a driven piston of an associated jack wherein the inner edges of the force arms bear upon roller means mounted on the forward end of the piston. The curve of the inner edge of the force arms is preferably so constructed that the angle at which a constant axial force of the piston is applied to the force arm by the roller means is always such that the force applied to the load by the force arm is constant.

Abstract: A chain link tool including a pair of jaws on one side of the tool adapted to close the respective eyes of a cross chain connecting link, said jaws moving together as the handles are moved together and conversely, and such that a groove and a projection on the other side of the tool are adapted to receive the transverse portion of the side chain and to grasp the curved end of the cross-chain connecting link respectively when the handles are apart and to disengage the cross-chain connecting link as the handles are moved together.

Abstract: A ratchet cable cutter is provided with a double linkage between the handle and the pawl of the ratchet mechanism, and the relation between the two linkages is such that improved mechanical advantage is obtained while keeping the linkage mechanism within the limited spatial confines of the cutter tool.