Abstract: A power recoilable rule has an elongated bumper for cushioning the recoil impact of the blade hook when the blade is refracted into the casing. The casing has an opening at a juncture between the bottom wall and front wall, and a bumper is mounted in the casing within the opening for linear sliding movement relative to the casing in a path along the bottom wall. The opening in the front wall and the outer end of the bumper cooperate to provide an exit aperture for the elongated blade which extends outwardly through the exit aperture and has a hook on its outer end. A shock absorbing compression spring acts between the inner end of the bumper and the housing, and it is compressed by the inward movement of the bumper to absorb energy imparted by the hook when it impacts the bumper.

Abstract: On a machine for bending a sheet-metal edge (4) provided with a first sheet metal part (2) over a second sheet metal part (3) to be connected to the first (2), with at least one pair (12, 15) of form rollers, preferably driven, whose form rollers (13, 14; 16, 17) roll over it in the feed direction (19) on opposite sides of the sheet-metal edge (4) along its longitudinal edge and whose roll gap (20, 22) in the bending direction is inclined toward the second sheet metal part (3), wherein one of the form rollers (14, 17) grasps the sheet-metal edge (4) underneath on the side facing the second sheet metal edge (3), and with a support going across the feed direction (19) with at least one abutment supported on one of the sheet metal parts (2,3) by the fact that the abutment(s) is (are) arranged lagging behind the pair (12) of form rollers in the feed direction (19) and is (are) supported on the side of the sheet-metal edge (4) facing the second sheet metal part (3).

Abstract: Rotatable hand tools such as screwdrivers utilize a coextruded tool handle which provides a comfortably grip. The handle has an extruded body formed of a rigid synthetic resin with a uniform cross section over most of the length of its grip portion. Extending axially over the length of the grip portion is a multiplicity of coextruded peripherally spaced stripes of a synthetic resin which is substantially softer than that of the body, and these stripes are firmly bonded to the body.

Abstract: Machine tools are known, for forming workpieces, such as sheet metal, with tooling made of two tool halves arranged on opposite sides of the workpiece to be formed. One half of the tooling has at least one pressure element that can move against the workpiece and act on it and the other half of the tooling has at least one counter-pressure element that works with the pressure element to form the workpiece, and it is also movable against the workpiece. The movement of the pressure element against the workpiece activates the drive of the counter-pressure element in the direction opposite to the movement of the pressure element against the workpiece.

Abstract: An anti-reversing mechanism for a reel comprises an overriding clutch within the drive gear of the reel, a sleeve rotatably mounted within the overriding clutch and a retainer for restricting axial movement of the sleeve to retain the sleeve within the clutch. A drive shaft is rotatably mounted in the reel and a locking member is mounted upon the periphery of and movable axially length of the drive shaft. The locking member and drive shaft include cooperating opposed flat surfaces for limiting rotation of the locking member relative to the drive shaft. The locking member and the sleeve have interengaging teeth to constrain the rotation of the locking member relative to the sleeve. In addition, there is a lever for moving the locking member axially along the drive shaft between a first position of disengagement with the sleeve and a second position of engagement with the sleeve.

Abstract: A universal door latch is mounted on a door having a series of holes therethrough for a latch spindle and fasteners. The latch has first and second subassemblies, a spindle, and means to rotate the spindle. The first subassembly includes a first housing which is secured to one side of the door and has a recess in its inner surface in which is seated a track plate with a central aperture and elongated slots diametrically spaced from the aperture. A pair of mounting studs are slidably seated in the slots, and a ribbon spring couples the mounting studs to cause the studs remain equidistant during their sliding movement. The second subassembly includes a second housing which is secured to the other side of the door and has a recess in its inner surface in which is seated a mounting plate with a central aperture and elongated slots diametrically spaced from the aperture. A pair of fasteners is slidably seated in the slots and engaged with the studs of the first subassembly.

Abstract: A machine tool for cutting workpieces includes a cutting head with at least two cutting units each providing cutting beams directed at the workpiece so as to impinge thereon closely adjacent each other to cooperate in the cutting action. The machine tool includes a worktable to support the workpiece, and the workpiece and cutting head are relatively movable to provide a cutting line in the workpiece. At least one of the cutting units is movable relative to the other so that the angular relationship of the cutting beams may be varied, and the supply of the cutting medium is separately controlled for the cutting units. In one embodiment the cutting beams are high speed water jets which may contain abrasive and the cutting characteristics of the jets may be varied.

Abstract: An electromagnetic radiation reflection amplifier capable of amplifying cw or pulsed signals has a pair of cw oscillators operated under injection locking conditions. Diversion of oscillator power to a separate signal path during the off time of the input pulse is achieved through purely passive means; no active control devices are utilized. The device can be implemented for amplification of microwave, millimeter wave or optical signals. The amplifier comprises a 180-degree hybrid coupler, a matched pair of cw oscillator modules, a waveguide discontinuity, a waveguide termination, and an optional signal input element. For a magic-tee hybrid coupler, the cw oscillator modules are mounted on the ports of the symmetrically positioned waveguide arms and the waveguide discontinuity is located within either the sum arm or difference waveguide arm intermediate its ends.

Abstract: A returnable tape rule housing has a generally convexly arcuate juncture between the side walls and the upper portion of the peripheral wall upon which is an elastomeric grip element which provides a slip-resistant and comfortable gripping surface for the user's palm and thumb. The housing may also have textured surfaces on the lower portion of its side walls to enhance gripping.

Abstract: A drive assembly for an electric vehicle comprises a D.C. electric motor and an integrated charger controller for controlling the D.C. electric motor in a drive mode of operation and for charging a battery in a charge mode of operation. The integrated charger/controller includes a power module, (ii) a step-down module, and (iii) a control circuit. During the charge mode of operation, the input of the power module is connected to an electric power source and the power module provides a D.C. current output. Selected switches of the control circuit connect the output of the power module to the input of a step-down module, and connect the output of the step-down module to the terminals of the battery to charge it during the drive mode of operation, selected switches of the control circuit connect the terminals of the battery to the input of the power module, and connect the output of the power module to the D.C. motor to control the D.C. motor.

Abstract: A trocar assembly for exhausting gas from a body cavity comprises a trocar having a housing with a flow passage therethrough which terminates in an outlet fitting, and a filter mounted thereon. The filter includes a housing with a chamber, and an inlet and an outlet which communicate with opposite sides of the chamber to provide a flow passage therethrough. About the inlet is a fitting and there is a means on the inlet fitting mounting the filter on the outlet fitting of the trocar housing. Within the chamber is a filter means so that effluent gas passing through the trocar flow passage flows through the filter means prior to exiting through the outlet of the filter.