Abstract: A socket locking extension element includes a latching mechanism for automatically locking a socket to the driven end simultaneously on application of a wrench drive element to the drive end of the extension. The extension main shaft has a continuous void communicating with the drive end and the socket end of the extension. A captive latch lug projecting through a portion of the socket engagement surfaces is constantly forced into mating recesses in the socket by the outward reaction of a longitudinal operating rod in the continuous void and always bent in flexure by the latch lug. When a socket is snap-fitted to the driven end of the extension, this reaction holds but does not lock the socket in place, permitting it to be changed as desired. When wrench driving element is engaged in the drive end of the extension, the rod translates and an inclined surface on the rod locks the socket against the latch lug and the opposite side of the continuous void.

Abstract: A locking, adjustable, resilient mount for mounting a motorcycle engine on a motorcycle frame includes a shaft rigidly connected with the motorcycle frame via a pair of spaced mounting plates, at least one resilient vibration absorbing member arranged on the shaft, a mounting sleeve connected with the engine which is arranged around the resilient member, a pair of externally threaded collars arranged concentrically around the shaft at opposite ends of the vibration absorbing member, and a pair of internally threaded adjustable thrust plates arranged concentrically around the collars. The thrust plates are rotated on the collars to adjust the resiliency of the mounts and are locked by aligning one of a plurality of radially extending holes contained in the thrust plates with a bore contained in the collars and inserting a locking pin therethrough.