Abstract: This is concerned with a power operated wire stripper and is more specifically concerned with the power adaptation or conversion of a known type of hand operated wire stripper.

Abstract: A powered wire stripper in the form of a precision end stripper includes a housing with a wire-receiving opening at one end. An air cylinder and valve are connected to the housing and arranged to drive the stripper components back and forth. Those components include a pair of blade holders pivotable about a pivot pin between open and closed conditions and slidable within the housing between ready and retract positions. A set of precision cutting blades is mounted on the blade holders in opposing relation. A pair of puller plates are slidable in the housing and include a pair of slots disposed at an angle to the axis of motion. Slide pins slidably mounted in the slots pivotally engage the blade holders such that motion of the puller plate causes the blade holders to pivot about the pivot pin.

Abstract: The electric resistance heating elements of a heat treating furnace are suspended within a work chamber by hanger rods threaded into nuts which are welded to the inside of the outer wall of the chamber to avoid the need for forming holes through the outer wall. Spacers are supported by adjacent hanger rods and hold thin radiation shields in spaced relation over the entire span extending from rod-to-rod.

Abstract: A heat treating furnace in which an electrical resistance heating element is disposed in a chamber and is energized by way of a power feed through conductor which extends slidably through the wall of the furnace. An insulating washer and a retaining washer may be installed on and removed from the inner end portion of the feed through conductor from inside the furnace without either removing the conductor from the furnace wall or disconnecting the conductor from the heating element. A power terminal block and inlet and outlet lines for cooling water are adapted to be quickly and easily disconnected from the outer end portion of the feed through conductor to permit the conductor to be easily pulled inwardly through the furnace wall for servicing.

Abstract: A nozzle for delivering cooling gas into the work chamber of a heat treating furnace. The nozzle is formed by a resiliently yieldable metal tube having an overlapping seam and adapted to be contracted radially for insertion through a hole in the wall of the work chamber. After being inserted through the hole, the tube springs outwardly into frictional engagement with the edge of the hole to retain itself in place. Flares on the ends of the tube prevent the tube from shifting endwise relative to the chamber wall.