Abstract: A battle type game, which is readily constructed, includes simple electric circuitry for actuating signals to indicate hits made. The signals are actuated by completion of an electric circuit due to contact of an electrically conductive piercing portion of a piercing probe member, which may be a bulletin board type tack, with an electrically conductive head portion of a contact member, which may be a substantially flat headed metal thumbtack, representing a target or a part thereof. The invention is preferably made from a kit of components, readily assemblable by a youthful prospective player of the game. Also within the invention is the provision of cover sheets, having grid indicia thereon, for use to cover a corresponding marked sheet on a circuit board, for playing of the game, on which the target members are placed.

Abstract: In a portable motor driven tool such as a drill, a handle is connected to the housing in a manner permitting limited relative movement, in particular pivotal movement, between housing and handle. Biasing springs maintain the handle in a first position, and a normally-closed switch in series with the tool motor has an operator element engaging the handle. If the tool becomes stuck in a workpiece during operation, the sudden reverse force acting between the handle and housing overcomes the spring bias force causing relative movement between handle and housing to open the switch and break the motor electric circuit thereby preventing safety hazards and damage.