Abstract: A kit for permitting the mounting and removal of spiral lock washers to and from an annular washer retaining groove on a tumbler wheel post of a combination lock or the like includes a cylindrical tubular container-tool with an internal chamber for storing a washer removing tool and a washer guide stub.

Abstract: A combination lock of the tumbler wheel type having a plurality of tumbler wheels journaled for rotation on a stationary tumbler post within a lock case and means such as a driving cam for rotating the tumbler wheels to angular positions for unlocking the lock, wherein the lock case is provided with inclined ramp surfaces adjacent one end of the stack of tumbler wheels and a torque adjustment member having spring finger formations movable on the inclined ramp surface is adjustable responsive to insertion and operation of a tool into the lock mechanism chamber of the case to apply selected spring compression forces to the tumbler wheel stack and adjust the tension or torque properties thereof.

Abstract: A combination lock of the type having peripherally gated tumbler wheels rotating about a common axis and adjusted by a rotatable dial and driving cam assembled on a spindle and supported for axial as well as rotary movement, the lock has an over-center spring coupled to a fence lever which normally holds the fence lever at a raised inactive position and has a fence lever accelerator which includes an anvil surface portion and a hammer portion supported by a spring formation which is stressed to an energy storage position responsive to rotation of the driving cam so that the hammer portion can be released from that position to impact against the anvil surface and impel the fence lever toward the driving cam to cause the fence lever to shift to a lowered coupled condition with the driving cam if the tumbler wheels are properly aligned and to cause it to be spring returned to the raised inactive position if they are not properly aligned.