Abstract: An impedance matching transformer and isolation inductance construction for a vertical-end fed radio antenna which enables simple manufacturing tecniques to obtain uniformity of impedance matching from one antenna to the next and which enables the use of a sintered magnetically permeable core of a length longer than three inches. The impedance matching transformer includes a two turn primary and insulating means accurately spacing these two turns. The core is made up of a plurality of relatively cylindrical formed short core elements from sintered magnetically permeable material in end to end relationship. Very thin plastic spacers are interposed between the adjacent ends of the core elements and between the sides of the elements and the housing to prevent chipping.

Abstract: The reciprocating slide of a mechanically driven press has a ball and socket type interconnection with the connecting rod of the press drive mechanism. The socket component of the interconnection provides a rotatable adjusting screw threadedly interengaged with an annular piston received in a cylinder component on the slide. A locking nut threadedly engages the adjusting screw and is rotatable relative thereto and to the piston to lock the adjusting screw against displacement relative to the piston. During normal press operation the locking nut is biased against a shoulder on the cylinder by hydraulic fluid under pressure in a variable volume chamber between the piston and cylinder components. In response to an overload on the slide, a pressure responsive relief valve releases hydraulic fluid from the chamber and enables relative movement between the piston and cylinder components and thus between the slide and connecting rod.

Abstract: A tow tractor having a pair of front steerable wheels and a pair of rear steerable wheels is provided with attachment means for selectively connecting it to a vehicular trailer either by an articulated draft connection to permit swiveling movement therebetween or by a rigid unitary connection for operating the tractor and trailer as a straight truck. Steering mechanism is provided on the tractor for selectively affording four-wheel simultaneous steering of both said front and rear pairs of wheels in the same direction, or conventional front wheel steering only of the front pair of wheels while maintaining the rear pair of wheels locked in normal straightahead running position.

Abstract: In an industrial mechanical press, anti-friction gibs are provided to replace conventional V-type bronze gibs without requiring extensive rebuilding of the press. Linear roller bearings, and their associated flat races, are substituted for plain bronze gibs which enable zero clearance to be obtained between the press slide and frame, thereby effectively reducing off-center die loading and friction on the slide.

Abstract: A limited visibility signal device is disclosed which includes a housing, a source of illumination within the housing, a light directing lens at the outer end of the housing, and a light collimating arrangement between the source of illumination and light directing lens to intensify and directionally control light delivered to the light directing lens. The light directing lens includes an inner side provided with parallel lenticular elements extending thereacross and having first outer surface portions parallel to the lens axis and second outer surface portions of circular contour. The light directing lens further includes an outer side provided with parallel adjacent lenticular elements extending thereacross perpendicular to the elements on the inner side of the lens and alternate ones of which are of convex and concave contour with respect to the lens axis.

Abstract: A carburetor for an internal combustion engine using gasoline fuel is provided with a metering rod for controlling the flow of gasoline through a metering orifice between a gasoline reservoir in the carburetor and the passage leading to the air intake bore of the carburetor. The metering rod is provided with an air passageway for atomizing fuel before delivery thereof to the air intake bore, and the improvement of the present invention provides for the outlet end of the atomizing air passageway to be disposed on the upstream side of the metering orifice with respect to the direction of fuel flow therethrough from the reservoir.

Abstract: A hopper device for mounting transversely across the material discharge end of a vehicle mounted dump bed adapted to contain particulate material to be spread over a roadway being travelled by the vehicle. This type of hopper includes fixed first and second spaced end walls, a fixed back wall between the end walls and an elongated auger extending between the end walls, and an arrangement for rotating the auger about an axis to move material through the hopper toward one end of the hopper. The hopper includes a cover member extending between the end walls and movable between a spreading position where the material can dump into the hopper and be spread from the hopper, a dumping position where the material can be dumped over the hopper and a cleaning position where access is possible to the auger for cleaning by a water hose.

Abstract: A detector for detecting the position of the edges of a moving strip which produces an electrical signal proportional to the transverse position of the strip. A light source shines on the edge of the strip. A smooth surfaced sheet of translucent plastic material containing a fluorescent pigment is placed below the edge and opposite the light source. The pigment in the portion of the sheet of the strip and exposed to the light source outside the edge fluoresces producing light energy in amounts proportional to the area of the sheet exposed to the light source. This light energy travels between the sheet surfaces to the edges of the sheet. Photoelectric sensitive means are operatively associated with the edges of the sheet for producing an electrical signal proportional to the amount of fluorescent generated light energy which signal can be amplified to control power means for respositioning the strip.

Abstract: A method and apparatus for setting the relative magnetic relationship between a Hall Effect switch with a given operating field strength and a permanent magnet to operate the switch and having a magnetic field with a field strength greater than the operating field strength. This invention can be used for adjusting the toggle point of a combined Hall Effect switch and magnet or the dwell between the operate point and release point of the switch. This method or apparatus comprises the steps of determining the actual switching point or dwell of a combined Hall Effect switch and operating magnet, which switching point or dwell is controlled by the combination of the field strength of the magnet and the operating field strength of the switch, determining the difference between the actual switching point or dwell and a desired switching point or dwell and then modifying the magnetization of the permanent magnet to shift the actual switching point or dwell toward the desired switching point or dwell.

Abstract: A device for creating a sparking voltage across the electrodes of a spark plug of an internal combustion engine comprising a rotatable member carrying a permanent magnet having an outwardly extending flux field movable in an annular path, a transformer having a first winding for creating a current change of a spark creating level and a second winding connected across the electrodes, a Hall Effect switch activated by a D.C. biasing voltage and having an output energized when the switch is exposed to a flux field, switching means for rapidly changing current flow in the first winding only when the switching means is actuated, means for actuating the switching means when the output of the Hall Effect switch is energized, and means for mounting the Hall Effect switch at a selected location where the switch is exposed to an actuating flux from the rotating permanent magnets when the rotating member is at a selected angular position. In accordance with another feature, the D.C.

Abstract: An improved ignition system including a member rotatable about an axis and having a permanent magnet with an outwardly extending flux field carried by the member to create a flux field rotating in a given angular path concentric with the axis of the rotating member. In the system there is provided a circuit for creating a sparking voltage upon a rapid change in current in at least a portion of the circuit and switching means for causing the rapid change in current upon actuation of the switching means. The improvement includes a device for storing sparking energy, the switching means includes a solid state device for discharging the storage device upon receipt of a firing signal and a Hall Effect switch activated by a selected D.C. biasing voltage and mounted at a given position with respect to the annular path of the rotating flux field. The Hall Effect switch initiates the switching means to discharge the storage device and cause sparking of the ignition system.

Abstract: A slat link for endless conveyor belts for heavy materials handling has a central transverse reinforcing beam and slat link covers surrounding the transverse reinforcing beam which converge to either side of the beam at a point intermediate the vertical distance between the top and bottom portions of the beam. Material loaded on top of the conveyor slat links contacts the higher portion of the slat link at the portion of the slat link where the beam is located, the beam acting to distribute the shock from the material loaded thereon along its links and to transmit such shock loadings to the conveyor support structure which absorbs the shock.

Abstract: An improved anode connector assembly for a cathode ray tube comprises a resilient rubber cap having a cavity receiving a U-shaped metal bracket which opens toward the outer end of the cavity. The bracket is interengaged with the cap against displacement relative thereto, and a bare end portion of an insulated anode supply conductor extends through the cap into overlying relationship with the bridge portion of the bracket and is bent to form a loop. A U-shaped metal clip having leg portions for engaging the anode button has its bridging portion disposed in the cap cavity in overlying relationship with respect to the conductor loop. A threaded fastener extends through the bridging portion of the clip, through the loop and into threaded engagement with the bridging portion of the bracket. The fastener secures the conductor wire between the bridging portions and secures the clip to the bracket against displacement from the cap cavity.

Abstract: The reciprocating slide of a mechanically driven press has a ball and socket type interconnection with the connecting rod of the press drive mechanism. The socket component of the interconnection provides a rotatable adjusting screw by which the shut height of the slide is adjustable, and a locking nut threadedly engages the adjusting screw and is rotatable relative thereto and to the slide to lock the adjusting screw against displacement relative to the slide during operation of the press.

Abstract: A hose coupling is provided which is comprised of two semi-circular coupling halves bolted together around the outer surface of the end of a non-metallic hose. The inner surface of each coupling half is provided with a metal plate having a multiplicity of prongs struck from the metal of the plate to extend radially inwardly for penetrating the non-metallic hose. All of the prongs extend circumferentially of the hose to facilitate penetration of the hose during assembly of the coupling halves and to maximize retention of the coupling on the hose end.

Abstract: Apparatus for accurately pouring measured amounts of molten metal using an electromagnetic elevator. The trough of the elevator obliquely ascends from a pool of molten metal to a pouring spout and controls are provided to maintain the pool level at approximately a constant level so that by accurately repeating the time of the electrical energization of the elevator, the same amount of metal may be poured each time.

Abstract: A prefabricated storage shelf which can be easily and quickly assembled, disassembled or modified. The vertical posts have a plurality of equally spaced tabs struck from the walls of the post and which tabs have: a gusset formed at the base thereof for increasing the section modulus of the tab; a shape to aid insertion into the openings of horizontal beams; and, a pimple for retaining the horizontal beams in assembled position. Horizontal beams are provided which can be inverted to mate with different thicknesses of lumber forming the shelf. Brackets are provided for coacting with horizontally extending beams.

Abstract: A mill lining element is disclosed comprising a body of rubber having top and bottom surfaces and longitudinal side edges which extend in the direction of the axis of a mill shell. The body is reinforced by means of a metal plate covering the bottom surface and longitudinally extending metal bars attached to the metal plate adjacent the side edges thereof and extending through the body toward the top surface thereof.

Abstract: A method of charging a borehole with at least first and second separate sections of explosive material, which method comprises the steps of providing a detonating cord extending into the borehole, providing a first primer on a first carrier having a time delay connection between the cord and the first primer, this time delay having a first selected value, providing a second primer on a second carrier having a time delay connection between a cord and the second primer, the time delay of the second carrier having a second selected value different from the first selected value, sliding the first carrier and primer along the cord and into detonation association with the first section of explosive material and sliding the second carrier and primer along the same cord to detonation association with the second section of explosive material.

Abstract: A pilot flame to be positioned close to the charge opening of a cupola which uses carbon monoxide as a fuel in the presence of a fresh supply of combustion air, such carbon monoxide being drawn off from a position on the cupola where the temperature is above the self-ignition temperature of the carbon monoxide. Air preheated to a temperature above the self-ignition temperature of carbon monoxide may also be supplied.