Abstract: An internal thread configuration for use in nuts and threaded holes has a wedge ramp root section that is convexly curved so that a portion thereof is substantially parallel to the axis of the threads.

Abstract: A nut driver comprising a generally cylindrical frame having a cylindrical nut magazine disposed thereabout comprising a pair of semi-cylindrical magazine sections each having a plurality of elongated, aligned circumferentially spaced fastener chambers therein, a front magazine holder on said frame having an annular channel for the acceptance of one end portion of said magazine, and a rear magazine holder having an annular channel for the acceptance of an opposite end portion of said magazine.

Abstract: A quick change guide ring for a bottom pour ingot mould system to effect positioning of a plurality of moulds relative to outlets in a sprue plate.

Abstract: A combination fluid tank, air/fluid cooler, and mounting system for the prime mover and pump of a hydraulic power unit comprises a tank having a pair of spaced parallel laterally aligned prime mover and pump mounting plates on opposite walls thereof with a torsion tube connecting the mounting plates. A fan induces a flow of air internally of the torque tube providing for cooling of fluid in the tank. Efficient cooling in combination with a deaerating compartment within the tank minimizes the size of the tank.

Abstract: A method and apparatus for loading an array of articles into a front loading molding press. Two pairs of rails and two carriages are utilized to facilitate the various loading movements. The first or lower pair of rails is fixed and slidably mounts the first or lower carriage. The second or upper pair of rails is defined on the lower carriage and slidably mounts the upper carriage. A loading board is carried on the upper carriage and is mounted for up and down movement relative to the upper carriage. A predetermined array of loading heads are positioned on the underside of the loading board and a predetermined array of article holders are positioned between the forward portions of the lower pair of rails.

Abstract: A large bale press for cylindrical and/or rectangular bales of cut blade material comprises a compression chamber having an input opening for the blade material, a discharge opening for the finished bales, a take-up unit for the cut blade material, and a conveyer drum between the take-upunit and the input opening. One or more typing mechanisms each having a swivel yarn guide and swivel needle, effects wrapping of a corresponding number of yarn strands around the bale. The discharge opening is formed by pivoting part of the compression chamber about a horizontal axis.

Abstract: A machine for propelling a ball comprising an elongated barrel having an axially compressible coil spring therein that is controlled by an axially reciprocable screw disposed coaxially with and internally of said spring. A nut is threadably engaged on the screw whereby said screw is axially advanced and retracted. A coupling on the end of the screw first engages then releases said spring.

Abstract: An apparatus and method for loading a front loading molding press in which a loading board is pivoted at one edge on a horizontal pivot shaft which extends into a lower corner of the press opening adjacent one side of the mold in the press. Loading of the press is performed by loading the board with a predetermined array of articles to be molded while the board is in an upwardly pivoted oblique preloading position to one side of the press opening; thereafter pivoting the loaded board downwardly to a loading position directly in front of the press; thereafter sliding the board on the pivot shaft into the press opening to an unloading position directly overlying the mold; and thereafter discharging the articles downwardly onto the mold.

Abstract: A workpiece holder module for handling annular seals comprising a retainer module, a motor positioned beneath the module and having a hollow drive shaft extending upwardly and drivingly into the bottom of the module, and an air supply structure including a hollow column fixedly and centrally positioned beneath the motor with its upper end rotatably and sealingly receiving the lower end of the hollow motor drive shaft. The retainer module includes an upwardly opening cup-shaped casing centrally receiving the upper end of the hollow motor drive shaft, a resilient retainer ring positioned on the upper annular edge of the casing sidewall, and a central plug member secured to the upper end of a central post portion upstanding from the base portion of the casing. The annular seal includes an outer metallic ring adapted to be frictionally retained within the resilient retainer ring and an inner elastomeric ring adapted to seat on the central plug member.

Abstract: A guard for a steel strip recoiler precludes a "pinch point" between the revolving coil of steel and the advancing strip. A lower shroud prevents access to the periphery of the drum and an upper skid plate precludes access to the underside of the advancing strip. The drum shroud and skid plate are angularly related so as to converge to define a narrow slit which accepts cardboard filler strips but which precludes an operator's hand from passage therethrough.

Abstract: A nut forming apparatus in which a pair of identical die assemblies are housed in a pair of diametrically opposed boxes in a rotary block and rearward movement of the die assembly relative to the rotary block at a first die station is precluded but rearward movement of that die assembly is allowed as it is moved to a second die station by rotary movement of the rotary block. A fixed back pierce pin, associated with each die assembly, is thus inoperative in response to a front forming blow struck by a punch positioned at the first die station but operates to back pierce the nut blank upon rearward movement of the die assembly in response to a front forming blow struck by a punch positioned at the second die station. A pair of cammingly interfaced cylindrical members associated with each die undergo relative rotation as the die assembly is moved by rotation of the rotary block between the first and second die stations to respectively preclude and allow rearward movement at that die assembly.

Abstract: The disclosure relates to a turbine rotor and method of manufacture thereof. A plurality of blades having dovetails at the radially inner ends thereof are arranged in a circumferentially spaced circular array. A metallic hub is cast about the dovetails of said blades which are metallurgically bonded by the operation. Alternatively, the blades may be joined to the hub thereafter by an electron beam weld that extends axially to the rotor.

Abstract: A transfer mechanism in which the jaws for gripping and transferring the workpiece are mounted for rotation with a pivot shaft so that the jaws are translated between spaced work stations as the pivot shaft is rotated, and a cam member rotates with the pivot shaft and also slides axially along the pivot shaft for camming coaction with the jaws to selectively open and close the jaws in any angular position of the pivot shaft and in any translatory position of the jaws.

Abstract: An electrical connection system is disclosed comprising a female connector that accepts a complementary male post terminal. The female connector has an elastically deformable locking tab therein that locks into the male terminal. An insulating housing on said female connector is movable relative to both said female connector and said male terminal to effect disassociation therebetween.

Abstract: This clutch device is designed to be friction-less, and it employs hydraulic fluid for the engaging action upon a drive flange, without the use of friction linings. Primarily, it consists of an internal housing, return spring, piston and pushrod, which are moved by a cam rotated by the power source to cause a pumping action in the housing. Check valves are also included in the stationary housing, and apply and release control valves of the stationary housing open and close the fluid passages, for the clutch engaged, or released clutch condition.

Abstract: A method and apparatus for transferring workpieces to successive work devices. The apparatus comprises concentric turntables mounted for rotation about a common central axis. A series of work devices are mounted on the inner turntable and a series of workpiece holder devices are mounted on the outer turntable. The turntables are rotated in the same direction and in synchronism while the various work devices respectively perform work operations on the various workpieces held in the various workpiece holder devices, whereafter the inner turntable is accelerated and the outer turntable is decelerated until the various workpieces reach a position midway between successive work devices, whereafter the inner turntable is decelerated and the outer turntable is accelerated until the workpieces arrive at positions of alignment with the next successive work devices.

Abstract: The disclosure relates to a process for treating sour natural gas by contacting the gas after it leaves an absorber with regenerated solvent permitting substantial reductions in capital cost, operating cost, energy consumption, and providing for a reduction of pollutants emitted to the atmosphere.

Abstract: The disclosure relates to a torque responsive control system for a powered fastener driving tool having a reciprocable control rod for controlling the supply of power to the motor thereof. The torque responsive system features a plurality of ball pins that extend between front and rear ball pin retainers so as to be movable between a circumferentially extending drive position and an axially extending motor shut down position.

Abstract: An internal V-thread form has a concave following flank for engagement with the crest of an external thread.