Abstract: Apparatus for detecting the presence of an object moving relative to a vehicle within a location adjacent said vehicle, which location is hidden from the view of the operator of the vehicle; which comprises a first transducer mounted on the vehicle for transmitting sonic signals in a frequency range of about 30 to 40 Khz into the hidden location, a second transducer mounted on the vehicle in spaced relation to the first transducer for receiving a portion of the sonic signals reflected from an object present in the hidden location, a first high frequency (transmitter) audio amplifier powering the first transducer to cause the first transducer to transmit the sonic signals in the frequency range of 30 to 40 Khz, a second high frequency (receiver) audio amplifier for amplifying the signals received by the second transducer, a tuned amplifier for receiving a portion of the amplified signals from the receiver amplifier and being simultaneously coupled to the transmitter amplifier; the transmitting transducer, the

Abstract: A magnetic game comprising a gameboard for use with a magnetizable metal game ball. The gameboard comprises a non-metallic, non-magnetizable rectangular block having a central recess, a thin, non-magnetizable rectangular top plate and a plurality of target areas on a portion of the top plate over the central recess. A thin magnetizable metallic sheet, substantially the same size and shape as the recess, is disposed at the bottom of the recess. A magnetic plate is disposed in the recess over the metallic sheet. A plurality of smaller individual magnetic target elements is disposed on the magnetic plate wherein each element is disposed beneath a target area on the gameboard whereby the game ball is rolled on the top plate and comes to rest over one of the magnetic elements.

Abstract: A vent accumulator for a hydraulic integrator of the type having at least three pistons arranged in end-to-end relationship within an elongated housing. Each piston is adapted to move under hydraulic pressure in a direction away from one longitudinal end of the housing towards the opposite longitudinal end. Each of the pistons, except for the last piston adjacent the opposite end of the housing, is provided with a piston rod operatively connected to the piston next adjacent towards one end of the housing. Each piston is defined as having a first side directed towards one end of the housing and a second side directed towards the opposite end of the housing. Each of the pistons, except for the last two pistons in line, is provided with means for receiving hydraulic fluid under pressure from a load cell on its first side and an air vent communicates on it second side.

Abstract: A tubing slip pulling tool for the removal of tubing slips from a well casing head comprising a substantially disc-like member; a centrally spaced circular opening to receive a tubing therethrough; and a plurality of radial slots circumferentially spaced around the disc-like member, these slots being adapted to receive bolts therethrough for attaching the tool to the tubing slips. In an alternate embodiment of the present invention, the disc-like member is divided into three equal-sized arcuate sections, these sections being provided with hinge means to permit the opening of the tool and tongue and sheath for securing the tool in a coplanar alignment.

Abstract: A consolidation system for articles including a continuous track with a continuous chain supported from the track and movable in a horizontal direction around the track. Horizontally spaced and vertically extending baskets are suspended from the chain with each basket having vertically spaced compartments. A drive mechanism is provided for driving the chain around the track. An operator work station is located at a fixed position on the outside of the track. A conveyor is provided to move the articles adjacent the work station and pans are provided to deliver preselected articles from the conveyor to the operator work station. The chain can be moved a predetermined degree to align a preselected basket with the work station.

Abstract: In a method of making concrete of the Portland Cement type wherein a quantity of cementitious material, such as Portland Cement, is mixed with a quantity of aggregate, generally sand and rock in varying proportions and water; and, wherein, the resulting mixture is stirred or mixed for an appropriate length of time consistent with acceptable practices in the concrete industry after which the mix is poured and allowed to set, the improvement which is characterized by the employment of fly ash as the major ingredient in the cementitious material. The improvement also includes the adding of gypsum to the initial mix in an amount equal to about 2% by weight of the fly ash and, thereafter, adding in and mixing a quantity of calcium chloride equal to about 3% by weight of the fly ash.

Abstract: Apparatus for spraying a powder circumferentially around a pipe joint on a pipe comprising a yoke engagable with the pipe, one or more powder dispensers mounted on the yoke and disposed over the pipe joint, means for driving the yoke circumferentially about the pipe, each powder dispenser having an inner housing provided with an opening positioned adjacent the surface of the pipe for supplying a quantity of air-powder suspension to the surface of the pipe over the pipe joint, each powder dispensing device also having an outer housing surrounding the inner housing and being provided with an opening positioned adjacent the pipe and surrounding the opening of the inner housing, the inner and outer housings of each powder dispenser defining a space therebetween. A powder suspension device is provided having a hollow container adapted to contain a quantity of powder therein and a means for introducing air under pressure adjacent the bottom of the container to place the powder in suspension in the container.

Abstract: A control system for providing instant hot water at a hot water tap comprising a control unit adapted to be interposed in the fluid line between the source of water supply and the hot water tap. A heating unit is also interposed in the fluid line between the control unit and the hot water tap. The heating unit includes a closed heating chamber, a pipe arranged within the chamber and comprising a portion of the fluid line between the control unit and the hot water tap. A heating means is provided within the heating chamber for heating the pipe. The control unit comprises a fluid passageway therethrough constituting a portion of the fluid line between the source of supply and the heating unit. A flapper chamber is formed in the passageway and an inlet pipe from the source of supply has an inlet end disposed within the flapper chamber. A flapper is pivotally mounted within the flapper chamber and disposed over the inlet end of the pipe when there is no water passing through the control unit.

Abstract: A drilling rig load indicator for use on a mobile drilling rig of the type which is provided with means for applying a downward force to a drill string and bit and for applying a lifting force to raise the drill string and bit, and being further provided with a hydraulic pressure source which operates a plurality of hydraulic jacks to support and level the drilling rig. The drilling rig load indicator is composed of a hydraulic totalizer, a pressure indicator, and, a plurality of hydraulic pressure gauges. The hydraulic totalizer has an input side which is connected by means of conduits to the hydraulic jacks and an output side which represents the summation of the loads upon the hydraulic jacks. In the event that the conduits cannot be connected to the hydraulic jacks, the conduits may be connected to separate hydraulic load cells which are placed between the hydraulic jacks and the earth.

Abstract: An excavating and pipeline installation system includes an excavating vehicle, an excavating wheel assembly and a plurality of conveyors. The excavating wheel assembly includes a pair of excavating wheels for excavating a pipeline receiving trench at a predetermined location beneath the surface of the earth. The excavating wheel assembly is supported at the front end of the vehicle on a subframe mounted for pivotal movement relative to the vehicle between excavating and traveling positions. The excavating wheels are mounted for rotation about angularly disposed axes and are positioned to receive the pipeline therebetween. Bolster rollers are mounted on the excavating wheel assembly for initially lifting the pipeline, and pipeline rollers are mounted on the vehicle for exerting a downwardly directed force on the pipeline upon insertion thereof into the pipeline receiving trench.

Abstract: A portable and collapsible seat which can be suspended on a flexible strap from the belt of a user including a rectangular base which ultimately constitutes the seat, a pair of spaced parallel flanges extending outwardly perpendicular to the base along the long edges of the base, a leg somewhat longer than the base itself pivotally and slidably connected to the base, the leg adapted to lie against the base in the collapsed condition of the seat and extending at right angles to the base or seat when the same is in the operable condition, a V-shaped link having a flattened portion adjacent its center and being curved at its ends, the flattened portion of the link being received in a hole in the leg between the ends of the leg, the curved ends of the link being received in openings in the flanges adjacent one end of the base, a clamp being provided at this one end of the base and formed by extensions of the flanges for holding the leg in the collapsed condition of the seat, a clip pivotally connected to the leg

Abstract: A safety steering system to control torque rotation for boats having directable propeller outboard motors capable of pivoting about a vertical axis. An arm extending from the motor is connected to a flexible cable having two ends, a first end connected to a steering device and a second end connected to the arm. An actuator control valve interposed along the flexible cable is capable of locking the arm in a single position when no force from the cable is being exerted on the arm. The control valve has a valve body with a central bore therethrough and a first external port and a second external port in fluid communication with the central bore. A hydraulic piston-cylinder is connected between the end of the motor arm and a tab in the motor well. The hydraulic cylinder has a first chamber of confined liquid and a second chamber of confined liquid.

Abstract: A wheeled cart for carrying and storing baseball equipment has upper and lower shelves attached to a back panel with the shelves extending between side members extending at right angles to the back panel. The upper shelf is secured to the back panel at a location spaced from the top of the panel and has a plurality of spaced slots to receive the handle ends of baseball bats. The other ends of the bats are received in indentations in the lower shelf and the bats are retained on the cart by a detachable strap. A vertical member extends between the shelves adjacent one side member and vertical strips are attached to the vertical member and the side member to form a compartment for storing baseballs. The back of the back panel is provided with detachable straps for retaining bases and other equipment and the front of the back panel has a bracket cooperating with a slot in the upper shelf to hold a home plate.

Abstract: A stand for supporting a plurality of objects at a plurality of different vertical levels comprising a vertical rod having a plurality of spaced circumferential grooves, a plurality of cylindrical collars each having a central bore therethrough of substantially the same size as the cross-section of the rod, each collar having a pair of opposite radial slots extending from the outside of the collar, a horizontal plate connected to each collar and extending radially outwardly from the collar for supporting objects thereon, and a plurality of clips for connecting the collars to the rod, wherein each clip is made of a continuous piece of wire bent intermediate its ends to form a substantially semi-circular loop with arms to engage the collar and the grooves.

Abstract: An apparatus for handling and storing baggage or cargo within an aircraft fuselage including a fuselage door and a plurality of storage platforms with each platform consisting of a flat rectangular base and two upwardly extending side walls closely juxataposed to the shape of the fuselage. The platforms are capable of stacking one atop another when not in use adjacent the fuselage door. Each platform can move longitudinally relative to the aircraft fuselage away from and back towards the fuselage door in a telescoping sequence such that the uppermost platform will move away from said stack first and such that the lowermost platform will always return to said stack first.

Abstract: An inclinometer for determining the inclination of a well bore including a longitudinally extending housing adapted to be lowered into the well bore to a given depth, a marking element mounted in the upper part of the housing and being suspended from a point along the central axis of the housing, the marking element having a marking tip at the lower end located on a true vertical line from the suspension point, a rotatable chart member having a chart thereon mounted in the housing below the marking element and normally spaced from the marking tip thereon, the chart member being movable along the longitudinal axis of the housing and upwardly into engagement with the marking tip, whereby the marking tip will make a mark on the chart, mechanism mounted within the housing for moving the chart member at two spaced times into engagement with the marking tip, the chart moving mechanism including means for rotating the chart during the interval between the two times while, simultaneously, insuring that the chart memb

Abstract: Means for driving the back walls of the buckets of an excavating wheel having a plurality of circumferentially arranged digging buckets. Each digging bucket is provided with a pivotal back wall mounted on the excavating wheel. The excavating wheel is rotatably mounted on a central shaft. A central sprocket is freely rotatably mounted on a bucket wheel hub which is mounted on the central shaft. A mounting bracket is attached directly to the main frame of the vehicle and extends outwardly therefrom. An offset sprocket which is smaller in diameter than the central sprocket is rotatably attached to the opposite end of the bracket. The axes of rotation for the central sprocket and the offset sprocket are parallel. A continuous chain passes around the sprockets with the chain constrained to move in a predetermined path. Push rods are pivotally attached at one end to connecting links of the chain so that the push rods are disposed at equal intervals along the length of the chain.

Abstract: An improved drive system for a massage table that includes a cabinet housing having an open top area, massage means that are formed to the housing and a lounge top having an upper side to support a patient and a lower side. The drive system comprises a motor within the housing, gear reduction means connected to the motor, and a continuous chain moved by the gear reduction means such that the path of the chain forms a plane. An upwardly extending ear link in the chain acts as a driver for the lounge top and a transverse bracket slot on the lower side of the top is capable of receiving the ear link. Removable parallel drill rods extend longitudinally across and are spaced from the lower side of the lounge top. Security brackets extend from the open top area of the housing with each bracket having an opening to accept a drill rod therethrough. Casters extend from the open top area and are aligned in a plane parallel to the path of the chain to allow the table top to slide reciprocally longitudinally.

Abstract: A dual vehicular steering system with a primary system for normal operation and a secondary system for emergency operation triggered by pressure sensitive switching and valving means. Both systems have in common a pair of single rod hydraulic steering cylinders with each cylinder being connected to a steerable wheel of the vehicle, a vehicular engine and hydraulic fluid stored in a tank. Cylinder shuttle valves connected to each steering cylinder function as gate devices to separate the primary steering system from the secondary system. The primary system includes a main pump driven by the engine, a high pressure filter, a priority flow divider to divert fluid in excess of an acceptable flow level, a control valve, an integrated valve package to proportionately regulate fluid flow between the cylinders, and means to direct fluid from the tank to the pump, through the filter, through the priority flow divider, through the control valve, through the integrated valve package and to the steering cylinders.

Abstract: An excavating loading system is disclosed which includes a vehicle with an excavating wheel assembly at the front and a plurality of conveyors toward the rear. The conveyors of the excavating and loading system include cross conveyors and a main conveyor for receiving material from the excavating wheels. The main conveyor transports the material rearwardly from the excavating wheel assembly and delivers the material to the opposite end of the vehicle. An auxiliary conveyor assembly is pivotally supported at the rear end of the vehicle to receive material from the main conveyor and to transport the material either laterally or rearwardly. The auxiliary conveyor assembly has inner and outer conveyors mounted with the discharge end of one conveyor adjacent the receiving end of the other conveyor. The conveyors are connected so that the outer conveyor can be folded under the inner conveyor.