Abstract: A rotary actuator having a piston travel adjustment mechanism and a cushioning mechanism associated in a single attached unit, with side porting for fluid pressure, thus having a more compact structure that is lighter in weight and yet completely adjustable.

Abstract: A magnetic flux shield and enhancer for brushless motors, with a plurality of clips having orthogonal legs in flux-conducting relationship to the rotor and permanent magnets of the motor. The permanent magnets are affixed to an inner circumferential surface of the rotor. Each of the clips receives a Hall sensor for activation by the magnets as they pass by. A first leg of the clip is configured so as to concentrate the flux from the magnets to an associated Hall sensor, while shielding the Hall sensor from flux emanating from the stator assembly of the motor. A second leg of the clip, connected to the first leg, provides a path for the flux through the rotor for return to the magnet from which it originated.

Abstract: Universal battery terminal connector for connecting either the top post battery terminal or a side post battery terminal to a battery cable. The connector is an elongated metal body having means for connection to a top post battery terminal, second means for connection to a side post battery terminal, and third means for receiving one end of a battery cable and providing an electrical connection therewith. The top post battery terminal connection is at one end, the side battery terminal connection is either at the other end or in the middle, and the battery cable connection is correspondingly in the middle or at the other end.

Abstract: A hand-operated sprayer has a spray head for attachment to a container for liquid. The spray head includes a manually-operable valve for controlling the discharge of liquid from an inlet in the head to a discharge nozzle. The sprayer includes a spring urging the valve into a closed position and a manually-operable member mounted on the head, which can be moved against the spring-loading to urge the valve into an open position. The valve comprises a spool having a passage providing communication between the inlet and the discharge nozzle, and the spray head valve spool-valve spool bore assembly has a radial inlet port located between a fixed, valve spool seating component, and an annular valve spool seal component which prevents external leakage.

Abstract: A die pulling apparatus comprising a pair of die puller box assemblies, means for lifting the die puller box assemblies from a lower position to a raised position in which the top surfaces of the die puller box assemblies are flush with the die supporting surface of a stationary die supporting member, such as a bolster, and means for moving the die horizontally from the die puller box assemblies to the stationary member or vice versa when the die puller box assemblies are in their raised position.

Abstract: A protective device for a grinder or the like comprises a cup-shaped guard cover to be attached to the grinder body, which is adapted to enclose a grinding wheel of the grinder and provided with a suction port and a contractible portion. The contractible portion is effectively contracted when the grinder is pressed against a workpiece in use, consequently to prevent swarf particles created in grinding from being scattered by the air evacuated from the suction port and safeguard a worker against a broken piece of the grinding wheel brought about accidentally.

Abstract: Tin steroids and methods of using the same. The tin steroid compounds are prepared by the reaction of various organotin compounds with various steroids. Said compounds inhibit the growth of malignant tumors. They are also useful as insecticides, larvicides, bactericides and fungicides.

Abstract: An assembly capable of use in removing material from both ends of an elongated workpiece, such as a bar incorporates two similar pieces of apparatus of a known kind. Each apparatus has a cutter mounted at one end of a flexible drive and rotatable by a motor about its own axis to effect removal of the material; the cutter is supported in a universal mounting enabling the cutter to swing in a closed path about the axis of the cutter. The cutter is biased inwards towards the axis. The invention provides positioning means for moving the cutters aside into loading positions so that a finished workpiece can be removed laterally and a new one introduced laterally. The positioning means on each apparatus includes means for shifting the motor towards the universal mounting so as to cause the flexible drive to bow more markedly and move the cutter further from the axis, and a deflector for engaging the cutter-end of the flexible drive and moving it to its loading position.

Abstract: Rotary actuator of the rack and pinion type. The rotary actuator has a rack with a generally cylindrical outer surface having a recess which receives a rack bearing and an arcuate rack bearing which is received in that recess. The rack bearing has an arcuate, convex outer bearing surface and an arcuate concave inner surface which abuts the rack and the rack has a recessed outer surface which conforms in shape to the inner surface of the rack bearing. The rotary actuator may have two racks as shown. The rotary actuator has a pair of floating pistons associated with each rack.

Abstract: A motorized antenna mount for rotationally and pivotally supporting a satellite dish on a main vertical support pole. A base is adjustably mounted on the top of the support pole by a plurality of plumb bolts to compensate for any vertical misalignment of the pole. A motor housing is pivotally mounted on the base by a hinge and pair of curved pivot guide tracks. An electric motor is mounted in the motor housing and is connected to a drive gear through a gear reducer for rotating a turret which is mounted by a thrust bearing on turret mount attached to the top of the motor housing. The satellite dish is mounted on the end of a support arm which is pivotally adjustably mounted on the turret for declination angle control thereof. The turret has an internal arcuate-shaped gear track extending preferably 180.degree. about a central opening formed in the interior of the turret and engageable with the motor for rotating the turret drive gear.

Abstract: In a vehicle hydraulic system of the open center kind, hydraulic fluid for operating vehicle services is circulated continuously, normally by an engine-driven pump. A closed center booster which requires a substantially constant pressure differential to operate it, is included in the open center system, the pressure differential being provided by a fixed restriction. The fixed restriction may be operative when the pump is operative, or only when the booster is operative. The booster is arranged so that in operation, high pressure fluid entering a boost chamber displaces an equal volume of fluid from a forward chamber into the system. The booster may also include a one-way valve allowing flow of fluid from the forward chamber to the boost chamber.

Abstract: A decorative member such as a welt or a button attached to a surface layer of a seat cushion, and a method and apparatus for forming such a decorative member are disclosed. In the method and apparatus, an upper plate is disposed for vertical movement relative to a lower plate, and a pair of holding members defining an insertion space between their upper end portions are vertically or horizontally movably mounted on the lower plate. A covering and a core providing the decorative member are inserted in the insertion space, and a seat cushion is placed between the upper and lower plates with its surface layer facing the holding members. The upper plate is urged downward toward the lower plate to compress the seat cushion onto the holding members while, at the same time, enclosing the core in the covering in the cooperation with the holding members. High frequency current is supplied to complete the decorative member and to weld it to the surface layer of the seat cushion.

Abstract: An open top storage drawer having a storage compartment formed by front, back, side and bottom walls molded integrally of plastic. An undercut is formed in a lower portion of the front wall to provide a handle for slidably removing the drawer from a storage space. A pair of offset, vertically spaced U-shaped slots are formed on the front wall. The upper slot defines a window for viewing the interior of the storage compartment, and preferably supports a transparent panel to enclose the front of the drawer. A content identifying label is mounted in the lower slot in juxtaposition with a backing wall. The drawer provides both a frontal visual inspection of the drawer's contents through the window and a printed identification thereof.

Abstract: An automatic dispenser for wine has a first reservoir which holds an inverted bottle of wine and a second reservoir connected to the first reservoir through a check valve for holding a supply of wine received from the first reservoir. A solenoid actuated valve is interposed in a wine dispense line connected to the second reservoir. A source of pressurized nitrogen gas is connected to both the first and second reservoirs for supplying the discharge pressure for dispensing the wine from the second reservoir upon actuation of the solenoid, and for maintaining a nitrogen enriched atmosphere in contact with the wine at all times in the reservoirs to prevent secondary fermentation of the wine in the reservoirs by the oxygen in the air. Nitrogen is supplied automatically to the first reservoir through a demand control valve each time wine is removed from the second reservoir to occupy the space vacated by the dispensed wine.

Abstract: A protective, easily removable laminate for application to the carpeting, and decorative seat and wall covering material of vehicles includes a plastic film coated on one surface with an acrylic resin based pressure sensitive adhesive. The film, in one form of the invention, is comprised of unoriented polypropylene capable of stretching and withstanding deep drawing and resisting the heat involved in thermoforming. The pressure sensitive adhesive is essentially of the type which does not adversely affect paint or trim material and which has preferential adhesion failure to the carpeting or seat or wall covering rather than to the film. In another form of the invention, the film, where it is not to be subjected to thermoforming operations, may be of a different composition such as polyethylene terephthalate, oriented polypropylene, polyethylene, or polyvinyl chloride. The method of employing the film in all forms of the invention is to apply the pressure sensitive adhesive to one surface of the film.

Abstract: A by-pass vacuum motor assembly wherein the motor cooling fan is positioned in an opening at the bottom of the motor band and immediately above a flat plate portion of the fan housing bracket. The flat plate portion functions as a plate diffuser, redirecting air drawn through the commutator end bracket and across the motor internals into a radial exhaust between a bottom portion of the band and a top portion of the fan end bracket. The invention also includes a brush holder clip passing through a vertical opening in the commutator end bracket and engaging a collar on the brush mechanism. The brush mechanism passes through a horizontal opening in the commutator end bracket which intersects with the vertical opening. Armature grounding is achieved by a disk maintained in a recess in the commutator end bracket and urged by a spring against the bearing receiving the motor shaft.

Abstract: The improved racquet has a strung surface which is larger in area than the strung surface of a conventional racquet, and in which the strung area is both longer in length and width than the strung area of a conventional racquet. However, the overall weight and balance of a conventional racquetball racquet which have proven necessary for good playing characteristics for all such racquets have been maintained. The racquet has synergistically combined the weight of the racquet, the center of mass of the racquet, the stiffness of the frame, and the response characteristics to create a racquet of sufficient durability with a larger "sweet spot" to facilitate the playing of the sport and to increase the level of skill, particularly of the novice and intermediate players.

Abstract: A therapeutic exercise device mounted on a floor base having a bicycle type seat, hand cranks and foot pedals.The foot pedals turn a lower rotatable shaft equipped with a pair of identical sprockets.Each hand crank turns a rotatably interconnected portion of a split upper shaft, each of said split shaft portions equipped with a sprocket. The sprocket on one split shaft portion is slightly larger than a lower shaft sprocket, and the sprocket on the other split shaft portion is slightly smaller than a lower shaft sprocket. A pair of drive chains interconnect the upper and lower sprockets.

Abstract: An arrow has a sectional shaft with forward, center and rear sections, at least the center section being tubular; a cord tied to the front and rear sections and extending through the center section to aid in retrieval of the arrow after it is shot; an arrowhead having a plurality of blades; a tail piece having a projection for snagging objects after the arrowhead has entered the body of an animal; a plurality of protective sheaths which cover the arrowhead blades in their closed position and which expose these blades in their open position; and at least one flap, pivotally mounted on the forward portion of the shaft for resisting removal of the arrowhead from an animal once it has entered therein.

Abstract: A method of treating high-protein oedemas in humans or animals by administering the compound 7 hydroxy-coumarin.