Abstract: An improved fluid vapor injector for injecting a fluid vapor into the intake manifold of an internal combustion engine at a rate generally related to the intake manifold pressure.

Abstract: Apparatus for producing hot mix asphalt utilizing new aggregate and a previously manufactured and layed asphalt mix which has been reduced to form recyclable aggregate, comprising a cylindrical mixer drum supported for rotation about its longitudinal axis, a burner assembly for producing a flame in the drum extending from a first end of the drum to a medial portion thereof, a conveyor assembly extending from a second end of the drum to a medial portion thereof for feeding the recyclable aggregate into a medial portion of the drum, means for feeding the new aggregate into the first end of the drum and for injecting asphaltic oil into the drum, the drum being provided with a plurality of mixing flights for mixing the asphaltic oil, new aggregate and recyclable aggregate for discharge as a hot mix asphalt from the second end of the drum.

Abstract: An electric power generator incorporating an automobile alternator operable in a high voltage mode suitable for providing power for hand power tools and in a low voltage mode suitable for maintaining the charge of a battery which provides a field current for the alternator. A switching circuit, manually or automatically actuable to place the generator in the high voltage mode of operation, interposes a voltage regulator in the field current circuit and connects the output of the alternator to the battery to charge the battery when the generator is operated in the low voltage mode and interposes a variable resistor in the field current circuit and disconnects the battery from the output of the alternator to permit adjustment of the output voltage of the alternator when the generator is operated in the high voltage mode.

Abstract: A method for determining a set of surface locations lying along a predetermined line of survey beneath which there is a relatively high probability of existing subsurface mineral bodies exhibiting relatively high density and relatively low magnetic susceptibility by selecting for membership in said set those surface locations lying in regions where a local minimum of magnetic field intensity substantially correlates to a local maximum of gravitational field intensity, those surface locations lying within regions of local topographic irregularity wherein the gravitational field intensity substantially directly correlates with the surface elevation, and those surface locations lying within regions wherein a steep gradient between a local maximum and an adjacent local minimum of the magnetic field intensities substantially directly correlates to a steep gradient between a local maximum and an adjacent local minimum of the gravitational field intensities.

Abstract: An improved spraying system for distributing a first fluid having a second fluid entrained therein, the system comprising a pair of fluid reservoirs and an improved proportioner nozzle assembly having a baffle and a deflector to facilitate mixing and directional control.

Abstract: An apparatus for use with a crepe pan for making crepes or the like, the apparatus generally comprising a pan support frame for supporting the crepe pan and means for moving the pan support frame in a first direction to a handling position where the pan is adjacent to a heating unit, and in a second direction to a cooking position where the pan is astride the heating unit, the pan support frame being maintained in the handling position for a first predetermined time and in the cooking position for a second predetermined time.

Abstract: Means for attachment of one of two fog lights to the front bumper of an automobile, as applied to an automobile structure in which the fog lights, which are generally rectangular and have integral lugs for engagement by connecting bolts and nuts, are attached to the under side of the bumper, which is channel shaped in transverse section and is spaced apart from the body of the automobile, the fog lights being positioned rearwardly of the bumper and in use extending downwardly below the bumper, forwardly of the automobile and in close proximity to the ground, where they are most effective, penetrating the fog and illuminating the ground for some distance, also visible to oncoming traffic.The specific improvement which comprises the invention consists of a spring biased hinged bracket which is connected to the under side of the bumper and to the top side of a fog light, and which enables the fog light to swing bodily downwardly and rearwardly about the axis of the hinge on impact.

Abstract: An apparatus for injecting hot water into an oil well head to facilitate recovery of residual oil deposits.

Abstract: A refrigeration type air conditioning apparatus employing a heat transfer medium for use in a vehicle having a large passenger area, comprising a vehicle engine driven compressor and a pair of electric motor driven compressors, all of which are connected to a pair of condenser coils via a discharge manifold and to a split evaporator coil via a suction manifold while each of the condenser coils is connected to one half of the evaporator coil via an expansion valve.

Abstract: An improved apparatus for repairing indentions in a rigid skin, the apparatus comprising a frame supportingly holding a transparent base plate that is positioned to rest on a portion of the skin in close proximity to the indention. A chuck assembly is slidingly supported by the frame to grippingly hold and movably position a dent engaging member that contacts the dented portion of the skin. A retraction assembly moves the chuck assembly in a direction to pull the dented portion towards the base plate.

Abstract: A control apparatus for use with a drawworks assembly having a work piece suspended from, and applying tension to, a cable, one end of the cable being wound on a drum, the rotation of which is controlled by a power brake mechanism, the control apparatus comprising a cable tension sensor producing a tension signal proportional to the tension in the cable, a pulse generator producing a pulsed control signal and a brake control applying the tension signal to the power brake mechanism in response to the control signal.

Abstract: Method and apparatus for providing an output indication proportional to the moisture content of particulate material wherein a probe drive signal having predetermined frequency and amplitude is applied to the particulate material and a current indicator signal proportional to the current applied to the particulate material is provided, the current indicator signal being proportional to the moisture content of the particulate material.

Abstract: An improved sand bag filling apparatus comprising a hopper having rotatable longitudinal members with radially extending arm members that fluff the sand in the hopper as the longitudinal members are rotated. A powered conveyor belt receives sand from the hopper and moves the sand to a conveyor discharge end whereat is disposed a bag chute. The bag chute has a pivotable nozzle that cooperates with a switch to actuate the conveyor belt when the dispensing nozzle is pivoted in a sand delivery direction.

Abstract: An improved fluid motor having only two moving components, a reciprocatable piston and a fluid actuated valve spool. The piston is supported for linear movement in a piston support bore of a barrel assembly, and is moved in alternating directions by the operation of selected porting of a pressure fluid selectively admitted against differential piston pressure faces. The valve spool is disposed in an inner bore in the piston and is alternately driven in opposing directions by automatically controlled and selective application of fluid pressure. The fluid motor experiences no mechanical impact between the valve spool and the piston.

Abstract: A food processing apparatus for removing leaf fat from the abdominal cavity of a hog carcass wherein a first plate and a second plate are positionable with respect to the hog carcass, the first and second plates being engageable with a portion of the exposed surface of the leaf fat in a removal position of the first and second plates with respect to the leaf fat to be removed. A handle assembly connected to the first and second plates is utilized to position the first and second plates into and from the removal position via maneuvering the handle assembly. A first hook is connected to the first plate and a second hook is connected to the second plate for severingly engaging a portion of the leaf fat when positioning the first and second plates in the removal position for severing a portion of the leaf fat from the hog carcass to facilitate the removal of the leaf fat.

Abstract: A microform viewer for use with a rigid frame, the viewer having a housing pivotal about a longitudinal pivot axis and an end transverse pivot axis, a microform projector mounted on the upper surface of the housing and projecting a microform image downwardly along a projection axis, a viewing screen mounted in an opening in the upper surface of the housing, a reflector connected to the housing and reflecting the microform image upwardly onto the viewing screen, and rotation means connected between the housing and the frame for pivoting the housing about the longitudinal pivot axis and the end transverse pivot axis.

Abstract: An improved apparatus for decasing food links comprising an accelerator assembly imparting initial feedthrough velocity, a preconditioner that heats the casings to facilitate removal, a casing slitter assembly, a casing drive assembly, and a stripping head assembly featuring directed air jets and meshing gripping gears that pull the casings away from the links. The accelerator and driving assemblies cooperate to impart high velocity to the food links while minimizing product damage in a machine that assures complete operator safety. The casing slitter assembly provides a pivoting slitter head that accurately follows the shape of the food link, slitting the casing without damaging the food link. An adjustable guide assembly provides parallel axial alignment of the food links with the meshing gripping gears.

Abstract: Apparatus for producing resistors wherein substantially round heads are heat-formed on the ends of the leads and molded, under a predetermined pressure, into electrical and mechanical contact with a quantity of resistive material to form an integral body.

Abstract: The present invention contemplates an improved active differential filter network comprised of a bridge network having a pair of input-output junctions and a pair of control junctions, and an operational amplifier having an inverting input connected to one of the control junctions and an output connected to the other control junction, the operational amplifier having a non-inverting input connected to a bias control signal.

Abstract: An improved trailer convertible to one position for hauling floor supported cargo and to one other position for hauling granular material. The trailer has a floor assembly including; a pair of center floor panels which are supported on the trailer frame and form a portion of the floor supporting structure in one position and which are removable and positionable for cooperating to retain granular material in one other position; and a pair of end slope members which are removably connectable to the trailer for cooperating with the center floor panels and portions of the trailer sides to retain granular material. The trailer is adapted such that pre-constructed sections of the trailer can be shipped and assembled at a remote location.