Abstract: Disclosed is a method of making a cushion body of synthetic resin with an ultrasonic welder. Ultrasonic heating and welding permits the formation of laminated synthetic resin material into a desired ornamental shape without causing any shearing effect therein.

Abstract: In an automatic transmission for a vehicle comprising at least a first friction engaging unit engaged for attaining a low forward speed and a second friction engaging unit engaged together with the first friction engaging unit for attaining a high forward speed, an apparatus for preventing creeping of the vehicle comprising an electronic control unit responsive to release of an accelerator pedal and the halted state of the vehicle and operative to control shift control means for engaging said friction engaging units and to control fluid pressure control means for reducing the pressure of hydraulic fluid supplied to the second friction engaging unit to a level lower than that of hydraulic fluid supplied to the first friction engaging unit, the second friction engaging unit including a brake band for gripping a drum, one end of the brake band being urged into engagement with the drum by a hydraulic device and located with respect to the fixed other end in a direction that the drum tends to rotate when the high

Abstract: Apparatus and techniques for maintaining a constant flow rate of a coating material in a painting system are presented. A test loop is provided in shunt with the conduit passing a coating material in a painting system. The test loop determines a sensitivity factor for the coating, establishing for that coating a relationship between temperature changes and pressure. That sensitivity factor is then used to regulate the pressure at the spray nozzles to compensate for temperature changes experienced in the coating material.

Abstract: A steel tubular frame design for racquetball racquets, has a varying cross-sectional structure. This structure gives strength in the lower portion of the racquet so as to reduce the torsional and flexional movements of the frame in that area and has a different cross-sectional area in the upper portion of the racquet where flexibility is needed, providing this flexibility in a continuous one-piece racquet. The invention is characterized by a four-sided peanut-shaped steel tube that has convex corners and two concave sides on the long sides. The convexity and concavity varying at different points throughout the racquet. The racquet frame is of a quadraform/wishbone configuration and is throatless.

Abstract: A clutch disc for an automobile transmits torque from engine to a transmission through a disc plate, a torsion spring and a hub connected to an output shaft. A bush is press-fitted between the sliding surfaces of the disc plate and the hub to reduce the surface pressure at the sliding surfaces and also to prevent intrusion of dust into the sliding surfaces. The torsion spring and a sub-torsion spring disposed between a hub plate and a friction plate holding the hub plate therein are retained at their both ends in position by means of spring-retaining lugs formed integrally with spring holding portions of the hub plate. Thus, generation of noise from the individual members is prevented.

Abstract: A brake system for a vehicle comprises a booster unit including a piston disposed for sliding movement in a cylinder, a pressure chamber defined between the cylinder and the piston, and a valve member arranged for interlocking movement with the brake pedal and disposed slidably in the piston for controlling flow of hydraulic fluid from a fluid pressure source into the pressure chamber. A pressure control valve is disposed between the fluid pressure source and the booster unit for controlling the maximum internal pressure of the pressure chamber of the booster unit depending on the weight of the vehicle sensed by a sensor, and a master cylinder is connected to the piston of the booster unit to supply braking hydraulic fluid at controlled pressure to the front and rear brakes.

Abstract: An improved pickup cartridge of the kind including two moving coils is disclosed which is constructed such that a cantilever including a stylus tip at its foremost end is inclinably held by means of a damping rubber fixedly fitted into a longitudinally extending hole in a cartridge case which is preferably divided into two case halves and a pair of coils are wound about the cantilever which are located opposite to one another relative to the damper rubber disposed therebetween. An assembly of a magnet and yokes is fixedly held in the cartridge case so as to generate two magnetic fields which are directed at a right angle relative to one another, one of them being located corresponding to one of the coils and the other one being located corresponding to the other coil. Preferably, an assembly including the cantilever, the coils and the damper rubber is fitted into a sleeve and the latter is inserted in the longitudinally extending hole in the cartridge case.

Abstract: An elastomeric seal (1), particularly for mining roof supports, has a circumferentially extending primary sealing ridge (4) for sealing against the cylinder wall (15) at both low and high pressure differentials. In order to provide lubrication of the primary sealing ridge, a series of fluid reservoirs (10) are defined adjacent to opposite sides of the primary sealing ridge by a respective web (5) of secondary sealing ridges, each web consisting of a circumferential ridge (6) and a series of axial ridges (7).

Abstract: A lock mechanism for securing the cabinet of a security validator. A latch handle is maintained within a recess within a latch housing. The handle is pivotal about an axis and moves within an opening in the latch housing, transversing a slot within the housing. A lock cylinder has a plate connected thereto and adapted for positioning within the slot to engage and maintain the handle within the recess and slightly depressed therein. The handle is spring-biased to normally urge it from the recess. A freely rotatable disc is positioned before the lock cylinder to prevent unauthorized access thereto.

Abstract: The invention relates to a method for the manufacture of a pipe bend, whereby to obtain a uniform wall thickness one starts from a strip or sheet in the butted tube manufacture, the thickness of which constantly changes such that on the butted tube there is in each case respectively a longitudinal line with the greatest and smallest pipe wall thickness, lying opposite each other on the pipe cross section.

Abstract: A method of packing articles including positioning an article retainer around a temporary article support and placing articles on such temporary support within the retainer, measuring the height of the articles in the retainer and automatically forming a container of enclosure of a size to enclose the articles. Thereafter the formed container is suitably positioned around the articles and container top is put on the container end to close the container and complete the packaging operation.

Abstract: A pair of tandem master cylinders have primary pressure spaces connected to the brakes on one pair of wheels on opposite sides of the vehicle, and an actuator for the brakes on a trailer is supplied with fluid under pressure from pipe-lines connected to each of the four pressure spaces and under the control of first and second disabler valves. Each disabler valve has a pair of inlet ports, each connected either to respective primary pressure spaces or respective secondary pressure spaces, and an outlet port connected to the actuator. When one master cylinder is operated on its own both disabler valves are closed to prevent the actuator from being operated. Failure of one pressure space, when both master cylinders are operated simultaneously, causes the corresponding disabler valve to close but the actuator can still be operated from the operative pressure spaces, through the other disabler valve.

Abstract: An oil well drilling rig assembly having a main drilling mast which receives and installs sections of drill pipe. A pipe supply mast is pivotally mounted in a spaced relationship from the base of the main mast to provide a safe catwalk area therebetween. The supply mast is movable between a horizontal position for transferring pipe sections between an adjacent pipe supply rack and a vertical position adjacent the main mast for transferring a section of pipe therebetween. The supply mast is raised and lowered by hydraulic cylinders and is telescopically adjustable to various lengths. A combination shock absorbing bumper and alignment arrangement is provided between the mast drill mast and the pipe clamps on the supply mast. The supply mast is provided with a plurality of pipe clamps for releasably clamping a section of pipe on the supply mast. The clamps are provided with adjustable jaws which maintain the axial centerline for clamped pipes of various diameters.

Abstract: A method of forming and holding a stack of bags where the bags are of a type and filled with a material to be vulnerable to dislodgement if the stack is too high the method including the steps of confining the stack during the building of the stack by leaves projecting vertically up each side of the stack, tightening the sleeve around the stack thus built including the leaves, and then withdrawing the leaves.There are further features of one of the leaves being dismountable in sections to assist in building the stack and the further step in the method for holding the leaves together by disposable cords to resist upper spreading of the leaves during the building of the stack.

Abstract: A racket stringing machine utilizing an improved retaining standard for securing a racket to be strung in a fixed position. The retaining standard includes a vise portion and a clamp portion. The clamp portion has an attached rod that fits into a hole in the vise. The clamp portion serves to maintain the racket to be strung in a fixed position on the vise. The vise also includes a slot into which a dog is inserted. The dog bears against the clamp rod and fixes it in a particular location. A handle having a cam portion is also provided. The cam portion of the handle engages the dog so as to allow selective engagement with the clamp rod. Additionally, frame retainers of different sizes and shapes are provided that allow rackets of various configurations to be strung with the same stringing machine.

Abstract: A tin brightener for an electroplating bath contains various trialkoxybenzaldehydes for producing uniform desposits over a very broad current density range.

Abstract: A lure for surface fishing in weedy areas. The lure has a weighted, spoonshaped body with a long tufted tail extending at an angle from the rear of the body and large, widely set double hooks rigidly attached to the concave side of the body. The aerodynamic shape of the lure allows it to fall in a "hooks-up" position when cast and the tail member supports the lure in such a "hooks-up" position during a landing and a sliding retrieval along the surface of weed filled waters.

Abstract: An electric heater for insertion into a small container and comprising a heater core, a heater can having one closed and one open end in which the heater core is operatively embedded, a heater coil carried by said heater core only on a portion thereof adjacent the closed end of the can, a thermostat extending transversely of said heater core adjacent the open end of the heater can, the thermostat being insulated from the heater core.

Abstract: Case packer apparatus including endless driven conveyor, article gripper, and carrier bars for the article gripper which depend therefrom and where the conveyor has a downwardly extending reach connecting a pickup station to an article deposit station, the carrier and gripper being operatively connected to the conveyor as case packer groups spaced longitudinally of the conveyor, and where leading and trailing cross bars engaging rows of leading and trailing articles carried by each article group are present and where positioning structure for the cross bars secure them to end carrier bars of and/or to end portions of the carriages of the case packer groups in different manners.

Abstract: A wet pick-up type vacuum motor fan unit with a separately ventilated motor section and a motor end bracket serving also as a support for, and part of a discharge end housing wall for, the working air fan section, has on the bracket fanward face a centrally apertured metal disk plate defining a flow space or path for bearing sealing air flow from ambient air inlets external of the motor section to a central discharge into the inlet eye of an auxiliary fan clamped on the shaft back-to-back with a larger diameter working air centrifugal fan adjacent the end bracket.