Abstract: A flap valve, designed to be installed and maintained in the standard cleanout wye of a conventional plastic plumbing system through the side channel thereof without removing said wye from service, comprising a flap with a flexible sealing gasket and a rigid backing plate, a valve seat with an O-ring seal and a locking tooth, which seat seals to the upstream channel of said wye when pressed into said channel, a hinge formed by attaching an extension of said sealing gasket to a curved downstream edge of said valve seat with a hinge clamp so that the extension of the sealing gasket will bend around said curved downstream edge, and a stop to prevent said flap from opening too widely, said stop being an extension of said hinge clamp.

Abstract: An elongated carton supporting rail is mounted on a frame along with means for guiding an opened-out upright carbon blank to a predetermined position, with the edges of its bottom minor flaps resting on the rail. Flap closing elements automatically engage the bottom minor and major flaps of the carton in sequence immediately following the engagement of the carton with a switch lever when the carton is in the proper position on the rail. The minor flaps are folded above the carton supporting surface of the rail and in parallelism therewith, and the major flaps are folded below the carton supporting surface of the rail. The carton is then filled while supported on the rail, and thereafter is engaged by a pushing element and slid longitudinally off the discharge end of the rail.

Abstract: A module, utilizing a spirally wound membrane envelope, and adapted to be fitted into a containment tube of a fractionator, has a lip seal between the module and the containment tube, there being small apertures in the lip of the seal arranged and directed so as to allow a small controlled flow to continually bypass the module and thus prevent the product from becoming stagnant behind the seal.

Abstract: This invention relates to a loading device suitable for lifting bales onto a tiltable loading platform of a vehicle. The device employs a framework such as a plurality of longitudinal and transverse members which are secured to a loading platform. The transverse members extend rearwardly of the platform so that when it is tilted, the rearmost end of the transverse members are proximate the ground. These ends are in turn pivotally connected to a plurality of forks. The obtuse angle between the longitudinal members and the forks is adjustably limited so that the forks lie in a substantially horizontal plane when the loading platform is tilted. Bales are loaded onto the platform after the forks have been placed under the bales and the tilted platform returned to its normal horizontal position.

Abstract: An autogenous triturator mill for reducing particle size by colliding streams of particles in the center of a rotating bowl includes a bowl with radial vanes which is supported on a frame for rotation by a motor. Deflectors on the frame and located within the bowl intercept material centrifugally elevated in the bowl and direct the material inwardly in the form of a plurality of intersecting streams. Collision of particles in the intersecting streams reduces particle size. The concave sides of the bowl are provided with screens or foraminous walls to enable escape of fines of a pre-selected particle size from the bowl. The fines are fractioned off through the foraminous outlet as the particle size is reduced by repeated trituration or collision of the recirculating particles.

Abstract: A double pole double throw relay has two flexible electrically conductive contact arms which each carry an electrical contact positioned to engage cooperating contacts. Contact closing pressure is simultaneously applied to both contact arms by a yoke made of electrical insulating material which extends transversely of the arms and is pivotally connected midway of its length to an actuator which is positioned between the contact arms and is movable toward and away from the arms. The pivotal mounting of the yoke tends to equalize the contact closing pressure. In one embodiment, the yoke is supported by yielding means to provide a degree of overtravel which maintains pressure and compensates for contact erosion and water.

Abstract: A machine for orienting generally tapered objects such as ears of corn and lining them up on a moving conveyor with their smaller ends uniformly forward, made up of a vertically reciprocating plate with a vertical face, a pressure plate with an opposed face biased toward the face of said vertically reciprocating plate and held in parallel relation thereto, a feed roller with a downward turning generally cylindrical face which feeds tapered objects between said vertically opposed faces, means to supply tapered objects one by one onto said downward turning face, and a conveyor below said pressure plate and vertically reciprocating plate to carry away oriented tapered objects while maintaining their orientation.

Abstract: One or more prestressed elastic bands is incorporated into a resilient tooth positioner (such as that described in U.S. Pat. Nos. 2,467,432 and 2,531,222) in such a manner that they bear on the buccal and labial surfaces of one or both arches of a patient's teeth. Such incorporation causes the tooth positioner to tend to contract while in place so that inward pressure is exerted on the teeth of one or both arches, closing spaces between the teeth. Such prestressed elastic bands may be incorporated into resilient tooth positioners by stretching pre-cured elastic bands along the arch of a cast of a patient's teeth (or along an arch-shaped generalized form) and maintaining such tension while molding identical or compatible uncured material around the teeth and bands and while curing such materials to complete the appliance. Such bands may also be attached to existing tooth positioners by various means, and bands having various configuration can be used.

Abstract: A crimping die which is movably mounted in one end of a shotgun shell crimping sleeve has a conically shaped side wall which permits the crimped end of the shell to overhang the crimping die to cause ironing of the crimped end of the shell against the rounded crimping corner of the crimping sleeve when the crimping die is withdrawn from the crimped shell.

Abstract: An opaque face plate has arrays of openings which are arranged to depict numerals when light is transmitted through predetermined openings. A plurality of back plates are slideably mounted behind the face plate, each back plate having an array of light passages, some of which are elongated slots, and said light passages being arranged to coact with face plate openings to form numerals. Some of the face plate openings are arranged in upright line formation, and the slots are inclined at a relatively small acute angle with respect to said upright lines. Each back plate is slideable in a direction defined by the direction of the inclined slots, and is moved back and forth in intermittent steps along its path of movement to cause the numerals to change in accordance with the time of day.

Abstract: This invention relates to a novel air curtain device suitable for use in detecting certain characteristic vapors emitted from objects, particularly individuals, positioned therein. An air curtain having a uniform velocity profile is set up between first and second cabinets. Vapor detector probes are positioned in one cabinet downstream of the air curtain. Detectable vapors carried by an object, such as a person within the air curtain, are stripped off and transported to the vapor detectors. By positioning the vapor detectors remote from the object, a significantly higher number of objects can be screened using known vapor detection techniques within a given period of time.

Abstract: A flexible looped buttoning device for use on garments and other items of fabric to safeguard against the involuntary opening or separation of two or more buttoned fabrics.

Abstract: An audible alarm is set off by unauthorized opening of a vehicle's doors, trunk or hood. The alarm circuit includes an operational amplifier and means coupling both operational amplifier inputs to the ungrounded vehicle battery terminal through balanced input resistors. A capacitor is coupled between one operational amplifier input and ground. When the door or trunk is opened, a light is automatically switched on, thus causing the battery voltage to drop slightly and producing an output signal from the operational amplifier which energizes an audible alarm coupled thereto. A key switch which is accessible from the outside the vehicle can be turned to disable the alarm circuit to permit authorized entry of the vehicle. The differential input of the operational amplifier stabilizes the circuit's operating characteristics with respect to temperature and prevents malfunction at temperature extremes.

Abstract: A packing member for securing a candle in a candle holder is in the form of a thin disk of polyurethane foam which has a diameter larger than the diameter of the candle butt and which is concentrically located with respect to the candle holder opening during insertion of the candle and packing member in the candle to encapsulate the butt end of the candle and firmly grip the candle. The disk is treated with dry chemical fire extinguishing components so that when the flame burns proximate the disk, carbon dioxide or other extinguishing gases are released to snuff out the candle.

Abstract: Shredded scrap is conveyed from a heat generating automobile shredder to one end of a horizontal tumbling drum and is caused to move in one direction through the drum as it tumbles. An air stream which has aspirated heat generated by the shredder, and carrying particulate material removed from the scrap in the shredder, is directed by ductwork to the opposite end of the tumbling drum where the air and particulate matter move in counterflow through the tumbling scrap to remove additional particulate material therefrom as the shredded particles are being showered through the air stream. The particulate material in the air stream emerging from the tumbling drum is separated out by a cyclonic separator. A bypass air stream duct with an adjustable valve bypasses some of the air stream around the tumbling drum to control the velocity of the air stream through the tumbling drum and thus to control the size of the particulate material removed from the scrap by the counterflow air stream.

Abstract: A stand for bicycles or other two wheel vehicles includes a base unit with two staggered wheel supporting cradles and a plurality of add-on units. Vertical uprights for each cradle define spaces or slots for the front wheels of two bicycles extending in opposed directions. Each base unit supports four bicycles and each add-on unit, two bicycles. When the base and add-on units are connected the uprights which define the wheel receiving slots are located along two parallel spaced axes. Such an arrangement provides good stability, utilizes a minimum amount of framing material and provides a compact arrangement for closely locating bicycles in a relatively small storage space.

Abstract: A game for use by the physically handicapped in which depressing an end of a large lever causes an elevator mechanism to raise a ball to an entry track which automatically conveys the ball to a gameboard by means of gravity. After leaving the gameboard, the ball enters a return track and automatically returns to the elevator due to gravity. The elevator includes a ball lifting surface which is inclined away from the return track and toward the entry track.

Abstract: A plurality of alarm conductors are coupled to a multiplexer which connects the conductors one at a time in sequence to the input of an alarm detector which detects alarm conditions on the conductors. A shift register having the same number of stages as the number of alarm conductors has its input coupled to the multiplexer output and its output coupled back to its input to form a recirculating serial memory. The shift register is clocked in synchronism with the multiplexer. The output of the shift register is selectively coupled through a switchable memory output control to the input of the alarm detector to recall a previous alarm condition on one or more of the alarm conductors. A second shift register having a number of stages equal to an integral multiple of the number of alarm conductors has its input coupled to the output of the alarm detector means. The second shift register is also clocked in synchronism with the multiplexer.

Abstract: A sealing wheel has a pneumatic tire with means whereby the flexure of the tire may be altered to compensate for dimensional differences in associated parts so that a required sealing pressure may be maintained. In one embodiment, a plurality of sealing wheels are mounted on a common shaft, the tire of each wheel being coupled with a source of compressed air, the air line for each tire having a pressure regulator so that the several tires may be regulated independently of each other, or coupled with a common source so that all tires may be regulated together. In one embodiment of the invention there may be a partial filling of the tire with liquid of a type which will bring about a more even distribution of heat where there is heat sealing.

Abstract: A cable is connected between the dump body of a dump truck and the movable control member of an hydraulic valve to automatically shift the valve from its "raise" position to its "neutral" position when the dump body approaches its uppermost raised position. There is means to prevent inadvertent transmission of forces from the cable to the movable control member to thereby prevent accidental lowering of the dump body due to an inadvertent pull on the cable.