Abstract: For use in rotating a bushing of an assembled track, wherein the bushing is press-fitted into apertures of a pair of links, first and second members are securable to one and the other of such pair of links, and a rapidly extendable and retractable cylinder interconnects the first and second members for providing a vibratory motion which, for optimum results, should be at resonant frequency to the links while rotational torque is being applied to such bushing.

Abstract: Prior art electrolysis cells used for producing chlorine for sanitizing and sterilization purposes deteriorate due to accumulation of scale on the electrodes thereof. This problem is solved by an improved cell comprising an outer electrode having an in-facing surface which falls generally on a first cylindrical surface and an inner generally coaxial electrode having an out-facing surface which falls generally on a second cylindrical surface, the second cylindrical surface falling inward radially of the first cylindrical surface, the outer and inner electrodes being longitudinally coextensive for at least a substantial portion thereof. The inner and outer electrodes are rotated relative to one another. An abrading structure is mounted to one of the electrodes with an abrasive portion thereof in abrasive contact with the other of the electrodes. The abrading structure is electrically insulated from at least one of the electrodes.

Abstract: A jacking assembly for positioning portable structures, mobile homes or the like includes at least two vertically operating jacks arranged as a pair on an elongated roller bed, which may be arranged in a parallel fashion with a second pair of jacks on a second roller bed. A horizontal operating jack associates one vertically operating jack with the roller bed to provide movement thereto. An adjustable link interconnects the one vertically operating jack on the roller bed so that the movement imposed upon the one vertically operating jack of the pair by the horizontal jack is translated to the other vertically operating jack. A hydraulic control system is provided to selectively actuate individual jacks from a position remote of the roller beds.

Abstract: A milking apparatus is disclosed for automatically providing the appropriate amount of vacuum for purposes of milking a cow throughout the entire milking operation. The milking apparatus includes a fluid control valve system having a controller unit and a discharge valve in fluid communication with a collection jar. The controller unit is further adapted for communication with a source of vacuum, and the collection jar is adapted to be in communication with the cow such that the vacuum can draw milk from the cow into the collection jar. The discharge valve is further adapted for communication with a source of vacuum for drawing the milk through the discharge valve.

Abstract: The harvesting of grapes from vines grown on a horizontal trellis-supported wire wherein the wire and fruit-bearing portions of the vine which are secured to the wire are directly held and uniformly shaken along the length of the wire with no shaking energy being directly imparted to the vine trunks or to the foliage canopy over the fruit-bearing portions of the vines and with minimal disturbance of the canopy.

Abstract: A manually charged fluid dispenser includes a charging cylinder disposed in the mouth of a bottle and a manually reciprocable piston carried on a charging rod which extends out each end of the cylinder. The charging rod has a differential diameter for providing hydraulic return thereof by fluid pressure in the charging tube after manual charging of the tube. The charging tube is in fluid communication with a spray nozzle mounted on the bottle and tube through a ball valve which is selectively unseatable by a cam actuated by a slidable trigger, which is hydraulically biased by a piston which is in connection with pressurized fluid at the ball valve. An alternative embodiment of the charging cylinder provides a charging rod slidable in a draw tube disposed above an end of a charging cylinder and a piston slidable therein so that fluid pressure in the cylinder will return the rod to its rest position.

Abstract: A switching system is disclosed for the concentration of a plurality of telephone lines onto a lesser plurality of intermediate trunks, wherein an independent processor is included at both ends of the concentrator system. These processors communicate with each other over a randomly chosen idle trunk, thereby negating the need for a dedicated communication link between the processors. Each processor controls the switching functions at its end of the concentrator, independently monitors and retains trunk status, subscriber line status and system operational status, and provides system fault detection, diagnosis and recovery including communication to maintenance personnel of trouble codes based on the detected fault and its diagnosis. Manual interaction with the system is also enabled at either end of the concentrator system via display and input/output units or remote from both ends.

Abstract: It is desirable to provide a relatively coarse finish at one end of an inner cylindrical wall of a cylinder or a cylinder liner and a relatively finer finish towards another end of said inner cylinder wall. A honing member is provided for rotation and oscillation in contact with the inner cylinder walls. A first section of the honing member has a relatively coarse grit surface and a second section of the honing member has a relatively fine grit surface. The abovementioned oscillation and rotation of such a honing member comprises an improved method for honing a cylindrical wall.

Abstract: A brake release mechanism for a spring-loaded, normally applied vehicle brake releasable by system hydraulic pressure when said system is disabled includes a manual cut-off valve for isolating said brake from the disabled system and manual hydraulic pump means communicating with said brake for supplying fluid pressure thereto.Manual or pilot operated shunt means are provided for shunting a hydraulic motor associated with the brake to allow free turning thereof during towing.

Abstract: A gasoline pump comprises a housing having a vapor recovery nozzle mounted on a bracket. An actuating lever is pivotally mounted on the housing for movement between "on" and "off" positions. The nozzle comprises an annular elastomeric face seal adapted for sealing engagement over a fill neck of a vehicle and a spout extending through the face seal for disposition within the fill neck for gasoline filling purposes. A hood assembly is secured on the housing to cooperate with the bracket to mount the nozzle and to fully enclose and protect the face seal thereof. The hood assembly preferably comprises a metallic plate secured to the housing of the pump and a generally wedge-shaped hood member secured to the plate. An elastomeric gasket is secured to the lower free edges of the hood member to prevent damage to the face seal of the vapor recovery nozzle upon insertion thereof into the hood assembly. The bracket may be mounted on the housing, on the actuating lever or, on the hood assembly.

Abstract: An essentially non-dissipative, strap-free, continuously adjustable power unit inherently impervious to shorts and open circuits for powering repeaters in a T1 or similar telephone span line is disclosed. The unit uses a pulse-width modulated inverter in the converter input circuit to produce a variable-voltage D.C. output to the span line. The pulse width or duty cycle of the inverter is controlled by a control logic which senses the span line current and maintains it at a selectable predetermined level without any apreciable power dissipation.

Abstract: Visual display of dental, medical or other radiographic images is realized with an X-ray tube in which an electron beam is scanned through an X-Y raster pattern on a broad anode plate, the scanning being synchronized with the X-Y sweep signals of a cathode ray tube display and the intensity signal for the display being derived from a small X-ray detector which receives X-rays that have passed through the subject to be imaged. Positioning and support of the detector are provided for by disposing the detector in a probe which may be attached to the X-ray tube at any of a plurality of different locations and by providing a plurality of such probes of different configuration in order to change focal length, to accommodate to different detector placements relative to the subject, to enhance patient comfort and to enable production of both periapical images and wider angle pantomographic images.

Abstract: A self-propelling toy comprises a ball-shaped housing having a tubular support member rotatably mounted therein. A weight is secured to and suspended from the support member and at least one rubber band is attached between the support member and the housing for storing-up and releasing energy therefrom when the rubber band is wound-up and the ball released.

Abstract: An integrated circuit socket adapted for use with circuits such as dual-in-line packages (DIPs) provides multilevel mounting for such integrated circuits. The socket body is formed to receive the first integrated circuit package while the second integrated circuit package is disposed above the first. Metallic contact members are disposed in holes arranged to coincide with the electrical leads subtending from each circuit. Each contact member is formed with means to receive the coincident electrical leads from the first and second circuits. Each contact member is formed to engage the socket preventing inadvertent removal of the contact member. The contact members are sufficiently long to extend through the socket and an associated printed circuit board to which they may be readily fixed by conventional means. In the one embodiment the socket is unitary and is formed with longitudinal protruding spacer members to separate it from the circuit board. In a second embodiment the socket is modular.

Abstract: A nose construction spanningly connects the front ends of a pair of generally parallel linearly extending vehicle frame members. The construction comprises a tube extending from the front end of one to the front end of the other of the frame members and a pair of gusset structures unitarily formed of the tube, one adjacent each end thereof, each extending along the frame members towards a rear end thereof. The tube is affixed to the frame members. The gusset structure is also affixed to the frame members.

Abstract: A device capable of sensing forces exerted by fluids, particularly liquids, and thus may be used to sense fluid level and fluid flow. Preferred embodiments of the device include a switch means capable of being actuated without the exertion of substantial mechanical force thereon and an elongated body of low mass mounted for pivotal movement about an end thereof with switch actuation means at an end thereof in operative relation to the switch means only when the axis of elongation of the body is aligned with the switch means. Features of the device provide reduced inertial effects and reduced gravitational force requirements, as well as reduced wear, in operation.

Abstract: A brake cylinder includes a housing within which a piston is reciprocable, such piston acting on a cup seal. An annular resilient member of, for example, polyurethane material, is interposed the outer periphery of the cup seal and the adjacent outer periphery of the piston, and cooperates with such piston to engage the inner surface of the bore to prevent any portion of the seal being pinched between a portion of the piston and the inner surface of the bore.

Abstract: The invention relates to reduction of nitric oxide in exhausts from hydrocarbon burning engines. The nitric oxide is reacted with ammonia over a first catalyst and then the excess ammonia is reacted with oxygen present in the exhaust gas over a second catalyst. The resulting effluent stream has greatly reduced nitric oxide content without having an objectionable content.

Abstract: A straight duct serves as an air flow entry passage to deliver air to a valve in a cylinder head, said valve being located to deliver air tangentially into the cylinder bore. The duct leaves the valve at such an angle that a center line of the duct forms a 30.degree. to 50.degree. angle with the valve axis, an inner wall forms an angle of at least 40.degree. with the valve axis and an outer wall forms an angle of 30.degree. to 50.degree. with the valve axis. The duct has a generally circular or oval cross-section and the inside of the outer wall, if extended in the direction of air flow, would clear the valve seat.