Abstract: In connection with a surface material cleaning apparatus, a tank of cleaning fluid, an outlet line from the tank to a cleaning head, a suction pump carried by the tank recovering cleaning fluid from the cleaning head, a pump feeding the outlet line from the tank, a bleed line from the pump passing liquid into and through the filter under a relatively high pressure creating a motion of liquid through and about the wall of the filter maintaining the filter wall in a relatively unclogged condition, the cleaning fluid in the tank being recycled for cleaning purposes through the filter at a relatively low pressure.

Abstract: This invention relates to a circuitry for easily and quickly testing the output current capacity of a generator by connecting the generator as a controlled current source, applying to the generator's field terminals an independent voltage proportioned relative to the rated output voltage of the generator, connecting an ammeter across the output terminals of the generator, the ammeter reading being calibrated to be equal to the reciprocal of the proportioned voltage, thus providing a direct reading of output current capacity representing the full output capacity of the generator. This circuitry greatly reduces the size and cost of a holding fixture and related components to make possible a low cost generator tester.

Abstract: A connecting structure for sections of floor coverings such as of floor covering use in public walking areas, the connecting structure having longitudinal transversely spaced upstanding T members adapted to be retained in accomodating side vertical openings of the adjacent edge portions of floor covering sections for connection of the sections and being sufficiently flexible to bend along a longitudinal axis for a roll up of adjacent sections.

Abstract: A demountable article holding device having a body portion adhesively coated for attachment to a supporting surface and having an intermediate portion thereof formed as a depending flap and having a rigid member therein having an article holding member secured thereto, the rigid member being particularly adapted to center upon the device the stress of the load held.

Abstract: A floor covering for public areas such as foyers in public buildings, each section of the floor covering being substantially rectangular in plan of a fairly narrow width, having a flexible projecting tongue along one side thereof, said tongue extending to underlie at least a portion of said sections and having the other side thereof adapted to receive and non-rotatively retain the projected tongue of an adjacent such section whereby like sections interconnect to form a floor covering, the tongues being sufficiently flexible to permit the connected sections to be rolled up.

Abstract: A drill holding case consisting of a housing, an insert member disposed in said housing, drill holding member carried by the insert, a wall of the housing having a pair of spaced open topped slides formed thereon, the member having a pair of extensions disposed into said slides, the cover having a pair of inward turned flanges from the sides thereof, the sides of said insert member being retained by said flanges.

Abstract: A cleaning head for a surface covering material cleaning machine made up as a fairly wide nozzle having a plurality of jets mounted therein delivering a pressurized air entrained cleaning fluid, and utilizing an additional air stream engaging and co-mixing with the fluid diverting it into an angle as it engages the surface to be cleaned; the additional air stream taken with the pressurized cleaning fluid provides a partial support for the cleaning head whereby the cleaning head glides over the underlying surface, and self adjusting end plates seal the end walls of the cleaning head.

Abstract: A ripple current component detecting circuitry embodied in the terminal of a cable connecting a battery charger with a lead acid storage battery to improve safety of use by preventing the indication of a correct polarity of connection where a charger is energized before connection is made with the battery when in fact such an indication may be incorrect, the prevention of such an indication being accomplished by the utilization of the AC ripple component in the charger output. The circuitry detects the ripple and with its use overrides what would otherwise be given as a misleading indication of polarity.

Abstract: A fishing line signal device consisting of an elongated base plate having a reel mounted thereon and spaced from said reel is a cam faced pulley having a fish line wound thereabout and dropped therefrom into the water, a spring rod mast having a flag on the end thereof is retained in a bent over position by a projecting ledge against the cam face whereby a fish bite tugs the line sufficiently to rotate the pulley and move the mast to be free of the ledge and spring to an upright position signaling a bite.

Abstract: A cleaning head for a surface covering material cleaning machine made up as a nozzle embodying a pair of chambers separated by a transverse plate member, one chamber being a cleaning chamber having a jet stream of cleaning fluid with an incoming air stream comingling therewith to form an aerated stream, the chambers flaring forwardly being coextensive at their forward ends and the cleaning chamber decreasing in height forwardly, the chamber communicating at the free end of the plate member, the end portion of the plate member having a terminal portion the width of said chambers whereby the other chamber forming a suction chamber draws upon the cleaning fluid causing it to accelerate substantially horizontally in engaging the surface portion and/or passing through the body portion of the material being cleaned and then being withdrawn upwardly about the end of the plate member to pass into and become discharged through the suction chamber.

Abstract: This invention relates to a battery charger which includes a timer which becomes energized upon a battery approaching a fully charged condition and the timer then commences a preset timed equalization or finishing charge which brings each cell of the battery into a 100% fully charged condition. The battery may remain connected to the charger which includes a restart monitor which causes the charger to automatically re-charge the battery to a fully charged condition when it senses that the battery is losing its charge.

Abstract: A fuel control system for an internal combustion engine fuelled by a gaseous fuel and a liquid fuel, comprises liquid fuel flow rate control means, and gaseous fuel flow rate control means. The liquid fuel and gaseous fuel flow rate control means are adapted to control the relative proportions of each fuel supplied to the engine, and permit the relative proportion of liquid fuel to be varied in the range having an upper limit of substantially 100%. The gaseous fuel flow rate control means includes gaseous fuel flow rate determination means which is responsive to engine variables, such as engine speed and throttle position to determine from said variables a desired gaseous fuel flow rate. The gaseous fuel flow rate determination means is adapted to generate a signal indicative of said desired gaseous fuel flow rate. This signal can be used to actuate a valve controlling the gaseous fuel flow rate.

Abstract: This invention relates to a device which when connected to a storage battery of a type which is a prime power source, such as a lead acid storage battery, measures the open circuit voltage condition of the battery to give a reading in increments of time of the remaining useful life of the battery for a given use up to the point of full discharge of the battery.

Abstract: An outside door structure having a core and having an exterior or surface layer comprising a plurality of pieces sealed together at their abutting edges to provide a weather sealed exterior surface.

Abstract: A hand holding attachment secured to a pair of jeans or a skirt which includes a patch of flexible material attached thereto which may be in the form of a pocket. Secured to the pocket is a strip of material which provides a conveniently reached and grasped hand hold for a child.

Abstract: A sling shot device consisting of a gun stock having an extensible rod like barrel, an elastic band carried by the barrel, a member holding the band under tension while loaded with a missile, the barrel and stock having sights and a band releasing member. The sling shot structure is adaptable to use a conventional arrow as a missile.

Abstract: A product dispensing mechanism in a vending machine dispensing such products as cigarettes and candy bars, the mechanism permitting the product to be vertically stacked in the vending machine, the lowermost unit of the product being seated between the adjacent coils of a short length of a coiled member which is rotated by an external operating member to advance the product along the member and discharge the same down a dispensing ramp.

Abstract: A wire forming machine in which the coil forming deflection tools are mounted on carriages and have one position to form a coil of a preset diameter and are automatically moved to a second position to continue forming the coil with a second diameter and in which one deflection tool having a tiltable head portion is arranged to be positioned automatically to form a true square corner by overbending the wire engaged.