Abstract: A staple driving system for driving insulated staples to secure an object to a base which includes staples having a generally U-shape including parallel legs with free end portions. A molded body formed of insulating material is located on the free end portions of each staple and is slidable with respect thereto when the staple is driven. The molded body has a generally semi-circular recess formed therein between the legs of the staple for surrounding and engaging a cable, wire, or the like. The molded insulating body of one staple is connected by frangible connections to an adjacent molded body of an adjacent staple so that the staples can be shipped and used in a strip. A staple gun having a magazine formed to receive and guide the insulated staples is also provided along with a pusher shaped to cooperate with guide ribs on the magazine while engaging the molded body and the bight of the last staple of a strip in the magazine to accurately guide the staples in the magazine during operation of the system.

Abstract: A retractable tape measure is disclosed which includes a housing having an opening formed therein, a coiled tape rule within the housing and a free end extending through the opening. A coiled spring is provided to retract the tape rule into the casing and a lock assembly is provided to selectively lock the tape rule in an extended position and release it for retraction into the casing. The lock assembly includes an actuator member that is pivotally mounted on the casing for pivotable movement between a locking and an unlocking position and a tape locking blade having one end positioned to engage the tape and an other end defining a bearing surface, the tape locking blade being mounted in the casing for movement between locking and unlocking positions.