Abstract: The diaphragm of a dual tire equalizer has an axial probe actuating or not actuating a switch in a radio frequency transmitter circuit mounted on the wheel. The transmitter sends a signal varying, depending on the condition of the switch. A radio frequency receiver on the vehicle and connected to an indicator in the driver's cab responds to the signal and issues appropriate information to the driver concerning condition of the equalizer.

Abstract: The invention is an improvement in floor-standing machines for cleaning inside surfaces of buildings such as walls and ceilings. The improved machine includes a first support for supporting the apparatus in an upright orientation and a second support for supporting the apparatus in a horizontal orientation. The machine may readily be moved on the floor in the upright orientation and in dolly-like fashion and supported on the floor for use in a "face up" horizontal orientation. The machine has modular dirt-collection, cleaning solution and rinse water tanks, each of which is slidably attached to a mounting member. The tanks are readily removable for filling and/or emptying as needed. Implements such as cleaning wands and the like are conveniently stored at the side of the machine.

Abstract: Pallet, especially a disposable pallet, consisting of two outer base members (1) and preferably at least one intermediary base member (1), which base members suitably are identical and consist preferably of wood or a similar material, the height of which suitably corresponds to the conventional pallet height and the thickness of which suitably is within the range 20-100 mms, especially about 25-35 mms, having two recesses (2) intended for the introduction of the forks of a forklift truck and a number of holes (3) distributed along the length of the base members and perpendicularly thereto and at a minor distance from the upper surface of the base members or touching the same and that the base members (1) are united with each other by tubes (4) running through the holes (3) to the formation of the pallet.

Abstract: An electronic timepiece having a face forming a simulated sundial, a gnomon, a first and second plurality of electronic display circuit elements extending radially from the first and second ends of the base of the gnomon and a control circuit to activate selected display circuit elements to simulate a functioning sundial is disclosed. In one arrangement, the timepiece has a digital auxiliary display and a circuit to convert from the digital display to the selected display circuit elements. The timepiece, in one arrangement, includes a day/night indicator in the form of a solar disk for day and a moon crescent for night.

Abstract: A tubular insert is adapted to be secured into an opening in the vessel and is formed with an internally threaded section adapted to receive a closure. The closure is a subassembly which includes a core hosuing having a threaded section threadedly engaging the insert and an internal threaded section and formed with a valve seat at its lower end. A core body is threadedly disposed in the housing and a valve element engages the seat with a compression spring inbetween the body and valve element. A stop is provided on the insert and retaining means are provided on the housing so that when the core housing is unscrewed, it is loosely retained in the insert indicating to everyone that the vessel is depressurized and the metal of the vessel can be heated and melted without any fear of explosion.

Abstract: The invention is an improvement in an extendable elongate liquid-applying device of the type used for cleaning interior walls and ceilings. The improvement includes first and second tubular members telescoped together and slideable relative to one another to extend and retract the device. One of the members has a proximal end; the other has a distal end and an attached angularly-oriented nozzle. A continuous length of coiled flexible hose extends within the members and connects to the nozzle member. That is, the hose extends unbroken along the lengths of the members, from the proximal end to the distal end, to provide discharge from the nozzle member regardless of the relative positions of the members. A separate base member plugs into the proximal end and has a valve for controlling liquid flow. With a nozzle attached thereto, the base member can be used alone for "close in" cleaning.

Abstract: An apparatus for determining an area of a surface which is traversed and treated by an object during a unit of time is configured for use with a moveable object that has a first axis of a known length. The object is capable of movement along a second axis and the first and second axes define an angle between them which is other than 0.degree.. A signalling means includes a sensor which may be mounted in a motion-sensing relationship to the object for providing a motion signal when the object moves a distance along the second axis. The motion signal has a predetermined relationship to that distance. A timing means repetitively provides a plurality of timing signals, each sequential pair of which defines an interval of time of known duration. A computing means is coupled to the timing means and to the signalling means for receiving at least one sequential pair of timing signals and at least one motion signal.

Abstract: A reliable indication of temperature-compensated pressure is provided from each of the wheels of a vehicle to an operator within the vehicle. A piezoresistive transducer bridge is supplied by a constant current source in one embodiment, and by a voltage of constant amplitude in another embodiment. Voltage to the bridge is reversed on a periodic basis. The use of constant current enables compensation for temperature-induced drift in transducer bridge output. The use of constant voltage enables compensation for ambient temperature, and provides an absolute, rather than a relative indication of pressure or "flatness" within the tire. Voltage polarity reversal permits compensation of amplifier offset voltage. Energy is transmitted to an from the wheel by means of a tuned circuit which is excited by a primary coil when the vehicle's engine is running.

Abstract: This tire valve comprises a brass stem having an elongate insulating sleeve over it, the sleeve being circumposed by a flanged threaded metal body which is provided with a gasket and a clamping nut to clamp the valve to the wheel. Electrically insulated from each other are a pair of contact rings held respectively against the clamping nut on the body and a second final nut contacting the stem, the rings having take-off leads. A molded rubber shroud protects the rings and holds them and an insulating spacer in proper relation.

Abstract: Improved automatic surface-treating apparatus of the type supported by and traversing a horizontal surface unattended. The apparatus includes mobility members for movement in a principal direction and side-step members having rotational axes a given distance above the surface. Each side-step member has a first sector with a far periphery spaced from its axis by more than the given distance, and a second sector with a near periphery spaced from its axis by less than the given distance. This arrangement allows a single rotation of the side-step members to accurately lift and move the apparatus laterally through a predetermined distance, to a new surface-treatment path.

Abstract: A regulator is provided in which the bias which urges the unseating of the regulating valve is a piston having a plurality of radial working surfaces, each in its own separate pressure chamber. The chambers are connected to the inlet selectively, singly or in combination, by solenoid valves. The unseating of the regulating valve is opposed by the outlet pressure which works on the entire back side of the piston. In the preferred form a relationship exists between the relative sizes of the individual piston working surfaces so that all the possible outlet pressures attainable by the regulator are equispaced, all the way from 0 psig to the highest regulated pressure.

Abstract: The invention pertains to a fine adjustment for the tool of a machine tool. The tool carrier is displaceable by forces generated by the rotation of a shaft through an eccentric wherein the shaft is indexed by a reversible electric stepping motor. Tool adjustments of thousandths of an inch are accurately and consistently achievable.

Abstract: An apparatus for measuring fluid pressure has an electrical circuit for measuring fluid pressure which is closed only when simultaneously, the pressure to be measured is at least equal to a predetermined threshold and is substantially stable. A deformable member deforms under application of pressure of the fluid being measured and closes the electrical circuit. When fluid is moving through the apparatus, a Venturi valve member functions to lower the pressure of the fluid in contact with the deformable gauge member to reopen the electrical circuit. The Venturi valve member is formed by a revolution cone disposed in a chamber such that the passageway located annularly around the cone is reduced. A measuring apparatus integral with a deflating-inflating assembly is also provided.

Abstract: The invention pertains to an adjustment for machine tool components, such as a head or slide, wherein minute dimensional variations are achieved by the utilization of a wedge acting against a spring biasing force. The wedge is longitudinally displaced by incremental motor means and the biasing force opposing the wedge actuated forces are produced by compression spring elements.

Abstract: A damper control system wherein a control screw is threadedly mounted in a door and engages a depending contact arm on a damper to move the damper between a closed position and various open positions.