Abstract: A hand-held staple driving tool is provided for driving staples near to obstructions, such as walls. The tool has a solenoid, a olenoid plunger and a staple driving knife which is mounted generally parallel to the axis of the solenoid, but outboard of it near the front of the housing. The staple driving knife is connected to the solenoid plunger by means of an overhung transverse drive beam which is connected at its forward end to the upper part of the knife and at its rearward end to the top of the plunger. The tool further has a siamese twin housing which has a live hinge at its front end. The tool has an extended staple driving chute to permit driving staples into small recesses. The tool further has a combination mounting and grounding device using only a single screw.

Abstract: A hand-held staple driving tool is provided for driving staples near to obstructions, such as walls. The tool has a solenoid, a solenoid plunger and a staple driving knife which is mounted generally parallel to the axis of the solenoid, but outboard of it near the front of the housing. The staple driving knife is connected to the solenoid plunger by means of an overhung transverse drive beam which is connected at its forward end to the upper part of the knife and at its rearward end to the top of the plunger. The tool further has a siamese twin housing which has a live hinge at its front end. The tool has an extended staple driving chute to permit driving staples into small recesses. The tool further has a combination mounting and grounding device using only a single screw.

Abstract: A magnetic disk cartridge comprising a magnetic disk for conducting image recording and reproducing through high-speed rotation and a case having a magnetic head receiving hole near a diagonal line of the case is provided with a shutter member having a rotation center at the corner of the case nearest to the magnetic head receiving hole. The shutter member is rotated fanwise to open and close the magnetic head receiving hole. The magnetic head receiving hole is opened when a portion of the shutter member engages an exterior shutter opening contact member of a recording device upon insertion of the magnetic disk cartridge. The magnetic head receiving hole is closed upon removal of the disk cartridge from the recording device.

Abstract: An illuminated retractable tape measure has a casing which contains a coiled tape rule whose free end extends through an opening in the casing. A lock arrangement locks the tape against automatic retraction into the casing. In the lock arrangement, a locking member is mounted in the casing with an end thereof engageable with the tape to hold the same against a portion of the casing in a locking position. The end of the locking member is moved out of engagement with the tape when an unlocked position is established. A slide actuator pivots the lock member between its locked and unlocked positions. A small lamp or lamps is incorporated in the casing for illuminating the ruling on the tape measure, and the actuator closes a switch when the actuator is moved to its locked position to light the lamp. This feature facilitates reading measurements on the tape measure, especially in adverse lighting conditions.