Abstract: An adjustable wrench is provided which provides several advantageous aspects. One aspect of the wrench is to facilitate rapid adjustment of the jaws, which are typically spring biased toward one another. Another aspect is the ability to adjust the jaws according to Metric system measurements or English system measurements or the like. A further aspect is the quick and effective tightening of the jaws.

Abstract: An optical fiber connector has a tubular housing which forms a lumen consisting of three portions having different inside diameters from large to small. The tubular housing has a plurality of parallel slots defined through a corresponding upper periphery and lower periphery thereof. A plurality of securing plates are allowed to be positioned inside the slots with two distal ends thereof substantially protruding slightly out of the slot. A hole is defined at the center of the plate for allowing a fiber to extend therethrough.

Abstract: A plier wrench is provided which has a body with a fixed jaw and a movable jaw slidable relative thereto that carries a rack. A gear engages the rack and moves the movable jaw and in addition a pivotal handle or lever is provided which may be swung toward the main handle or body portion which lever carries a tab that engages and rotates the gear to move the movable jaw toward the fixed jaw.

Abstract: A manually operable tool, such as a tube cutter, having a working element carried on a carrier adjustably positioned on a mounting element. An improved arrangement of threaded advancing structure and selectively positionable pawl structure is provided to permit automatic release of the pawl at opposite ends of travel of the carrier for facilitated use of the tool. Automatic release of the pawl is effected by means of the provision of spaces at the opposite ends of the carrier thread permitting a biasing spring to reposition the pawl suitably for quick, nonthreading reverse movement.