Abstract: A speed governor for a diesel engine having a fuel pump mechanically driven by the engine. The governor comprises a hydraulically activated valve. A first fuel line connects the valve to the fuel pump and a second fuel line connects the valve to the fuel injectors. The valve is activated by increasing fuel pressure to decrease the flow of fuel through the fuel lines and is activated by decreasing fuel pressure to increase the flow of fuel through the lines.

Abstract: A barrier for highway traffic of the type designed to bring a vehicle to standstill and avoid contact with a roadside hazard, e.g. a post, abutment or pylon, comprises an array of upstanding posts adapted to cushion the impact and increasing in number and height in the direction of travel of the vehicle toward the barrier to impose increasing resistance to traveling. The posts each comprise an upper and a lower section or portion in the form of tubes of which the lower tube is set into the ground while the upper tube is composed of thin sheet metal lined with or filled by a cushioning material such as a foamed synthetic resin. The two tubes or sections of each post are interconnected by a cast iron link which is designed to shear at ground level in part dissipating the kinetic energy of the vehicle. The upper tubes of the array are interconnected by chains.

Abstract: A solid state device capable of providing long-term storage of analog signals which in a particular embodiment utilizes a plurality of MNOS storage elements. An input analog signal is applied to a plurality of temporary storage means each associated with an MNOS storage element for temporarily storing a charge proportional to the amplitude of the portion of the input analog signal applied thereto. Storage control means are used to transfer the temporarily stored charges to the long-term MNOS storage elements so that controlled amounts of carrier charges are stored in the nitride layers thereof, such controlled amounts being substantially linearly proportional to the temporarily stored charges associated therewith. In a particular embodiment the input analog signal may be supplied via a surface acoustic wave (SAW) device and coupled to the MNOS device directly or it may be coupled to a charge-coupled device (CCD) and thence coupled to the MNOS device.

Abstract: A solid state device combining the use of a surface-acoustic-wave (SAW) device and a charge-coupled device (CCD) which utilizes an interface means therebetween comprising a plurality of conductive fingers responsive to an acoustic wave on the SAW device. The conductive fingers are electrically connected at at least one end to the CCD substrate and a plurality of temporary storage means are used for temporarily storing a charge proportional to the voltage potential on the associated conductive finger. The temporary stored charges can be transferred to the storage wells of the CCD for storing a replica of the acoustic wave. The SAW-CCD combination is adapted for use as a buffer memory, an accumulating correlator, or as a matched filter device.

Abstract: A contaminated article is subjected to vapor degreasing operations wherein the vapor degreasing solvent comprises a blend consisting essentially of perchlorethylene and trichlorethylene, wherein in the preferred embodiment, the perchlorethylene comprises about 81 volume percent of the degreasing solvent, while the trichlorethylene comprises the remaining 19 volume percent of the solvent blend.The solvent blend extends the normal life of perchlorethylene degreasing solvents alone, or in combination with stabilizers and the like, or, alternatively, allows the utilization of trichlorethylene at temperatures higher than those that would normally cause pyrolysis. The degreasing solvent blend not only extends the operational life of perchlorethylene-based vapor degreasing solvents, but also reduces the cost of conducting vapor degreasing operations.

Abstract: A foot pump comprises a base member and an operating member pivotally connected to the base member. A piston-and-cylinder assembly is connected between the members. In use the user depresses the operating member with his or her foot, thereby causing air to be compressed in and expelled from said assembly. A return spring returns the operating member to its raised position. The base and operating members have complementary pivot pin and hook means which are hooked together to form the pivotal connection between the members. The members are preferably made as unitary plastics mouldings, the pivot pin and hook means being resiliently clipped together.

Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; pivoted arms are mounted on the platform to extend along or across the aperture to engage and hold the housing in position in the aperture on the platform; locking devices are provided on the top of the platform to grasp the ends of the arms to hold them in a closed position; a telescoping handle is pivotally mounted on one end of the platform on the top side thereof.

Abstract: Test methods in which an enzyme conversion of at least one member of a family of compounds to an analyte precedes an immunoassay of the analyte are improved by conducting the enzyme conversion step substantially simultaneous with the immunoassay. A novel composition is provided for conducting the improved test method.

Abstract: This brush provides a quick and easy way of cleaning a broiler grill, and it consists primarily of a block, having a multiple number of bristle clusters, which are spaced apart from a center row of steel pegs. It further incudes a removable handle, that clamps onto the block.

Abstract: The extended length isolation packer of the present invention comprises upper and lower tubular body assemblies which are interconnected by a middle body. The upper tubular body assembly has an upper packer assembly and a closing positioner attached to its outer surface. The lower tubular body assembly has a lower packer assembly attached to its outer surface. An upper inner mandrel is concentrically disposed within said upper tubular body assembly and has a port disposed therein for communicating an inner cavity of said upper inner mandrel with the annular cavity between the isolation packer and an oil well casing. A lower inner mandrel is concentrically disposed within said lower tubular body assembly and communicates with said upper inner mandrel through said middle body. A fluid bypass is provided through annular cavities between the inner mandrels and the tubular body assemblies.

Abstract: A timer comprising a non-directional synchronous clock motor, an operating arm projecting radially from the motor shaft, a motor control switch controlling power supplied to the motor and engaged and opened by the arm when said arm is in a normal position, stop means spaced radially from the shaft and circumferentially from the control switch to limit turning of the arm in a direction away from the control switch and to cause the motor to rotate in the opposite direction and the arm to turn back to said normal position, a service switch in a power line to related timed means and positioned relative to the control switch, stop means and arm to be engaged and operated by the arm when said arm is in a predetermined position within its travel between said control switch and stop means and starter means connected with said power supply to energize the motor and initiate turning of the arm away from said normal position.

Abstract: A valve assembly for regulating the amount or pressure of hydraulic fluid supplied to a hydraulically operated machine system comprises a progressively movable valve member, especially a rectilinearly-moving valve spool controlling ports in a ported valve sleeve, a motive power unit, such as an electric stepper motor, disengageable speed-reducing coupling means, including a worm and worm wheel, to convert the rotary output motion of the motor into valve motion, a valve member position feedback transducer, and an electrical controller controlling the motor in response to input command signals and the feedback signal. A manual override control lever is provided for moving the valve member when the power drive is disengaged.

Abstract: A wallboard patching apparatus which takes the form of a thin sheet material, bendable base, the base including hiatus means in the form of a plurality of spaced-apart perforations. Centrally attached to the base and extending substantially perpendicular therefrom is a lock pin. The free end of the lock pin includes a hook. Adhesive is to be applied to the front operating face of the base adjacent the periphery thereof. The base is to be deformed and inserted through an opening in the wallboard. Once the base is extended through the wallboard, the lock pin is grasped and the now planar base is moved against the wallboard with the adhesive compressed between the front operating face and the inner surface of the wallboard. A wire bridge member is located between the hook of the lock pin and the exterior surface of the wallboard to fix the position of the base.

Abstract: A method of preparing zeolite ZSM-5 type crystals and mixtures thereof which comprises crystallizing the substantially pure zeolite material from a silica and, optionally, alumina gel mixture in the presence of an alkylammonium-N-oxide cation, and the products produced thereby.

Abstract: A crib having a main frame, a generally horizontal mattress support, and a mattress carried by the support. The mattress and support can be raised and lowered within the main frame by flexible hoist members attached to a winding bar that is rotatably journaled in two housings. Each housing is elongated, extending across one end of the crib, the hoist members being threaded through the housings and attached to the winding bar. At their ends, the hoist members are secured by brackets to a spring frame that forms part of the mattress support. The brackets can be used with spring frames of a variety of constructions. They have an upwardly facing channel that can receive a tubular frame with radius corners and an adjacent slot that can receive a downwardly projecting flange.

Abstract: Apparatus for indicating the level of the electrolyte in a battery cell. A three-electrode sensor probe having the electrodes partially embedded in an electrically insulating housing suspended in the electrolyte so that a portion of the probe is immersed in the electrolyte. The electrolyte provides the only conduction path between the electrodes so that the resistance between the electrodes varies according to the level of the electrolyte. An AC or pulsed DC sensing signal is applied between two of the electrodes and an output signal related to the level of the electrolyte is produced. A polarizing current is applied to the other electrode to prevent the buildup of surface contamination on the two sensing electrodes due to the sensing signal.

Abstract: A safety flush bolt entrance door system includes a pair of doors mounted in an entrance frame for outward opening with each door pivotally supported for individual opening and closing movement. A normally active door is provided with a locking mechanism adapted to engage an opposite, normally inactive, door for securing the doors together. One or more flush bolt mechanism(s) is mounted on the normally inactive door for locking the door with the door frame whenever the locking mechanism on the active door is engaged with the inactive door. A control mechanism is mounted on the inactive door and interconnected with the flush bolt mechanism(s) so that whenever the active door is unlocked, the flush bolt mechanism(s) is releasable in response to an opening force applied against the inactive door.

Abstract: A diesel engine exhaust particulate filter-incinerator comprising an enclosed filter panel having particulate deposition surfaces bordered by electrodes of a high voltage power supply. Periodic incineration is accomplished by the collection on the surfaces of particulates in amounts sufficient to conduct sufficient electric current along paths through the particulates to heat them to incineration temperature. Ignition and burn off of particulates may be automatically accomplished by maintaining a suitable voltage across the electrodes at the edges of the collection surfaces to initiate arc-like current flow before the collected particulates reach a level that would plug the filter. Specific embodiments of exemplary filter constructions are disclosed.

Abstract: A preform molding apparatus includes a mold cup which has opposed top and bottom mold members and a carrier arm between the mold members. The top mold member has a concave mold recess in its bottom surface and a semi-cylindrical rim extending downwardly from the edge of the mold recess. The bottom mold member has a concave mold recess in its top surface and a mold material inlet opening into the bottom of the mold recess. The carrier arm has a semi-cylindrical opening therethrough at one edge thereof. Pneumatic cylinders have piston rods connected to the mold members and the carrier arm for moving the mold members toward and away from each other and the carrier arm transversely across and away from the mold members.

Abstract: An apparatus for and a method of parallelizing the conjugate deflected light beams of a magneto-optic light deflector system. The apparatus includes two converging half-lenses, the centers of which are removed. The two converging half-lenses are oriented superposed with their centers aligned along the center of the light beam that is directed normally incident to the plane of the magneto-optic light deflector. A converging lens is oriented in the optic axes of the parallelized conjugate light beams for focusing the two parallelized conjugate light beams upon a screen or detector.