Abstract: A continuously running mechanical transfer press includes a workpiece transfer system in which electric motors are used to provide reciprocating movements in the clamp, lift and transfer axes. An independent backup tracking system including a fault detection sensing control is provided which utilizes independent measures of the position of the workpiece transfer system in all three axes along with an independent measure of the position of the press die in its cycle to monitor proper synchronization and operation of the workpiece transfer system. The fault detection system indicates a fault in the event the transfer system loses synchronization with the moving die, in the event two separate measures of die position are not in agreement, or in the event the transfer system fails to maintain parallelism of the two transfer rails included in the system. The press is stopped in response to detection of a fault to protect the press and the transfer system from damage.

Abstract: A latching relay includes a housing and a coil secured to the housing. An armature is electromagnetically coupled to the coil such that current to the coil biases the armature to a first position. A spring is coupled to the armature to bias the armature to a second position. The relay includes a switch which includes a movable contact coupled to the armature such that the switch is in a first state when the armature is in the first position and the switch is in a second state when the armature is in the second position. A magnet is movable in the housing between a blocking position, in which the magnet acts as a mechanical block to prevent the armature from moving to the second position, and an unblocking position, in which the magnet allows the armature to move to the second position.

Abstract: A digital electric length or angle measuring system includes a scanning unit for scanning a measuring scale and an evaluating circuit for evaluating scanning units generated by a plurality of scanning elements of the scanning unit. The scanning elements are connected to differential amplifiers included in the evaluating circuit. In order to balance faulty signal parameters of the scanning signals of the scanning elements, a balancing circuit is provided which includes bridge circuits. In each case, one diagonal of the bridge circuit is circuited in parallel to the scanning elements in the scanning unit and is connected to the inputs of the differential amplifier of the evaluating arrangement. Furthermore, each of the bridge circuits includes at least one balancing element such as a photosensor.

Abstract: A polyolefin compatable liquid colorant/additive concentrate for molding plastics. The colorants and additives are conventional pigments and additives. The vehicle contains (A) a low molecular weight addition polymer, such as a polybutene, a polystyrene, a poly alpha-methyl styrene/vinyl toluene copolymer, or an acrylic polymer or copolymer, and (B) an essentially non-volatile solvent for the low molecular weight addition polymer which has a boiling point of at least about 450.degree. F. and which is compatable with the resin to be colored. The liquid concentrate has a Brookfield viscosity between about 1000 and 40,000. The colorant concentrate produces uniform color finished products, without visible streaks or specks. It also eliminates screw slippage.

Abstract: A well deodorizing apparatus includes a checkvalve which provides unidirectional flow in a pump discharge pipe and a tap upstream from the checkvalve to divert a fraction of the pump discharge and direct it through a venturi orifice. The venturi effect atomizes the diverted water resulting in a pressure decrease in a mixing chamber. Ambient air is drawn into the mixing chamber and intermixed with the atomized water. The resultant mixture of air and water is directed back into the ground water reservoir thereby oxygenating the ground water and deodorizing the well.

Abstract: An improved barricade is composed of two identical, hollow, molded plastic panel units which are bolted together at top hinges. Novel detents lock the barricade in an open position for use. This mechanism allows for folding and storage by pushing the legs together with a substantial force. The panel units incorporate reinforcing ribs on the legs that taper off at their top and cooperate with opposing leg members and a specially shaped hinge section to allow for flat, compact storage. Horizontal panels are flush to the surface of the panel unit for optimum strength and space utilization. Bottom portions of the hollow panel units are filled with sand as a ballast to increase stability. A special mounting bracket is attached next to one of the hinges to support attachments such as flashers.

Abstract: An implantable microprocessor-controlled dual chamber heart pacemaker is programmed to control the timing of the pacing of the ventricle in response to high rate atrial signals. The microprocessor operates in conjunction with an atrial timer to detect atrial signals which occur at a rate in excess of a predefined atrial rate limit. The microprocessor paces the ventricle at a predefined desirable demand rate and inhibits pacing of the atrium in response to the high rate atrial activity. The microprocessor also controls the timing of an atrial refractory interval which includes an absolute refractory portion during which atrial signals are not detected and a relative refractory portion during which atrial signals are detected but are not tracked. The combined absolute and relative atrial refractory portions insure that relatively high rate atrial signals are detected and spurious signals conducted from the ventricle are ignored.

Abstract: A percolator/dispenser is disclosed which includes an insulated container having a hinged lid. A percolator heater tube and basket are mounted inside the container, and a manually operated pressure pump is included in the lid of the container. This pressure pump operates to pump air from outside the container to the inside of the container when operated. A discharge spout is movable between a vented position, a pump position, and a sealed position. A pressure lock system prevents the spout from being moved from the sealed position to the pump position when excessive pressure is present within the container. A lid stop system prevents the lid from being closed when the spout is in the pump position. A lid lock system prevents the lid from being opened when the container is pressurized.

Abstract: An improved apparatus for vending newspapers or similar articles is disclosed. The apparatus consists of a horizontally disposed drum mounted on a pedestal. The drum includes an open top and a sliding door on its vertical face. A drive plate is rotatably mounted in the bottom of the drum, and a carousel is detachably secured to the drive plate for rotation therewith. The carousel includes a plurality of open-ended, radial slots. The slots are formed by vertical walls extending from the center of the carousel to the periphery of the carousel. The upper edges of the walls slope downwardly from the center of the carousel to the periphery of the carousel. Various carousels having the same structure but different size slots may be used in a machine. A clear plastic dome is used to cover the open top of the drum. A lock and key arrangement is provided so that the dome may be secured to the drum and easily removed.

Abstract: A collapsible bag frame includes a one piece part which defines a frame, a mounting member, and two tabs. The mounting member is hinged to the frame, and the tabs are hinged to the frame. A bag such as a garbage bag is secured to the frame by a wire clamp. The tabs are movable from a first position, in which the frame is allowed to rest alongside a wall, and a second position, in which the tabs hold the frame out from the wall, thereby positioning the frame for use.

Abstract: A digital electronic length or angle measuring instrument includes an arrangement for error correction. A signal generator delivers periodic analog reference signals R.sub.S1, R.sub.S2 which are compared in a comparator with scanning signals S.sub.1, S.sub.2 generated by the measuring instrument. In accordance with the result of the comparison in the comparator, the reference signals R.sub.S1, R.sub.S2 are altered as a function of correction data for symmetry, amplitude ratio, phase angle, and signal form, which correction data are determined in a correction component and are supplied to setting members included in the signal generator. In this way, an in dependence on the correction data, improved reference signals are generated which then form a basis for the next comparison in the comparator.

Abstract: A power management system for a recreational vehicle operates automatically to disconnect a major electrical appliance, such as an air conditioner, heater or water heater, from power when the current drawn by additional appliances exceeds a preset current threshold. When the current drawn by these additional appliances falls below the threshold, the major appliance is automatically reconnected. A preferred embodiment of this invention operates to alternate between two or more air conditioners, heaters, or the like, to ensure that only one is connected to power at any given time, but that both are activated alternately and in sequence to provide efficient use of both air conditioners. In addition, preferred embodiments of this invention operate to interrupt operation of the air conditioners whenever the power voltage falls excessively low, and to ensure at least a preselected time delay between the time an air conditioner is stopped and restarted.

Abstract: An incremental measuring system is disclosed in which a reference position can be determined at any time. A rotating carrier body carries an additional incremental graduation for which scanning fields are arranged on a scanning plate. During a calibrating operation an additional marking on the rotating carrier body is used to determine coincidence with an associated scanning field. At this point a measuring value counter is started which counts graduation increments associated with rotation of the carrier body by means of associated scanning fields until the measuring value counter is stopped. This stopping of the counter is controlled by a signal generated on coincidence of an additional marking of the carrier body with the next reference mark on the graduated disc which carries the measuring graduation. Simultaneously, an additional marking of the carrier body reads a code mark associated with the reference mark.

Abstract: The disclosed guide device utilizes no rigidly mounted external guide elements. However, a guide element freely slidable on an air cushion on a flat base can be lowered from the interior of a slide element (by removal of the air cushion) onto the base. Once the guide element has been lowered, it is fixed by subpressure onto the base and takes over the function of a rigidly mounted guide. The guide element, which was previously freely slidable on the base, is now exactly positionable along the guide of the guided element. If the displacement path is to be increased, then the slide piece element is fixed by subpressure on the base, the guide element is again acted upon with compressed air and driven within the slide piece in a displacement direction and at the end of the interior space is again fixed to the base. Now the slide piece is again released and can on its air cushion be further positioned exactly in the displacement direction. This stepwise movement is limited only by the size of the base.

Abstract: The invention is a composition for coating surfaces with a thin film containing fluoropolymer particles, a method for producing this composition, as well as a method for applying it to a surface. More particularly, the composition includes a carrier lubricant, such as mineral oil, which has particles of a fluoropolymer, such as polytetrafluoroethylene, well dispersed within it. A solvent, such as 1,1,1-trichloroethane, is blended with the fluoropolymer containing carrier lubricant, most preferably in a one to one ratio. The result is a low viscosity dispersion of the carrier lubricant, which itself has a dispersion of the fluoropolymer particles. When the composition is applied to a surface, the lowered viscosity aids in obtaining a thinner film of the lubricant and also enhances the penetration of the lubricant into the surface. Advantageously, the solvent is allowed to evaporate from the surface, thus leaving an even thinner film of the lubricant.

Abstract: A substantially homogeneous and non-crystalline taffy-like chewing gum confection having extended flavor and sweetness release characteristics comprises chewable gum base dispersed in a pliable taffy composition. The taffy composition comprises dry sugar in a weight ratio of sugar to syrup not exceeding about 2:1 and preferably a humectant such as sorbitol in an amount constituting from about 1.5% to about 5% by weight of the taffy composition. The product has an initial soft, chewy and taffy-like consistency. The taffy-like chewing gum confection, is prepared by heating a carbohydrate syrup having a moisture level within the range of from about 7% to 15% by weight of the syrup and dispersing gum base in the heated syrup.

Abstract: A modulator preset circuit for an aircraft antiskid system is disclosed which operates to preset the modulator to a value proportional to aircraft velocity in order to reduce maximum available braking pressure to a greater degree for higher velocities than for lower velocities of the aircraft. This modulator preset circuit is enabled automatically at the start of a landing in order to ensure that the modulator is properly preset prior to the initiation of any braking activity. In alternate forms, the preset circuit can be enabled at all times. By presetting the modulator in this way initial skid activity immediately after aircraft touchdown is markedly reduced, thereby increasing braking efficiency and reducing tire wear.

Abstract: A magnetic measuring instrument for measuring the relative position of two objects includes a scanning unit which incorporates a magnet positioned to scan a measuring division. The measuring division is provided with alternately magnetically conducting and magnetically non-conducting zones. Measuring signals of high signal quality are generated because the induction generated by the magnet in the measuring division runs only in planes perpendicular to the longitudinal extent of the measuring division (the measuring direction x). Magnetic field sensitive sensor elements in the air gap between the magnet and the measuring division scan the air gap induction to generate position dependent measuring signals.

Abstract: An improved apparatus and process for sensing a test object by means of a switching sensor which is movable relative to the test object, in which the relative position between the test object and the switching sensor is measured by a measuring instrument. The switching sensor generates a switching signal at the moment of contact with the test object in order to cause the instantaneously prevailing measuring value of the measuring instrument to be retained. Such measuring values commonly are characterized by sensing errors as a function of the sensing speed and/or the material pairing between the switching sensor and the test object.