Abstract: A headlamp assembly includes a headlamp mounted to tilt in a vertical plane. An adjustment mechanism for varying the angle of tilt consists of a pivoted lever connected to the headlamp through a push/pull rod, a Bowden cable mechanism one end of the cable of which is connected to the lever and a linearly slidable block to which the other end of the cable is connected. The block is adjusted by a screw threaded rod mounted for rotational adjustment which engages in a threaded bore in the block.

Abstract: A liner element for a housing of a rotary piston machine is manufactured from a flexible metal strip and is deformed for example by pressing on one side thereof such that when the liner is assembled in a semi-cylindrical bore in the housing, the inner surface of the liner element has a trochoidal shaped surface to receive the rotor of the rotary piston machine.

Abstract: The single tube or single tube of a three, five or the like uneven number of tubes extending between a header unit attached to the underside of a boat hull in communication with the water circulating pump of the inboard engine and a return fitting attached to the underside of the hull is centrally divided into side-by-side separate compartments of equal area and volume by a longitudinally extending flat divider plate so that the uneven number of tubes is converted into an even flow number whereby an accurate volume flow can be achieved between the header and the return fitting in terms of the volume capacity of the water circulating pump.

Abstract: This invention concerns a method of recording wide-band signals on a thermoplastic film. The signal to be recorded is converted to an intensity modulation of a beam of electrons which is directed at the surface of a thin thermoplastic film carried on a conductive substrate. The film is rotated in its own plane and simultaneously translated so that the beam scans the film in a track which follows a spiral path. The deposition of charge produces after heating of the film a spatial modulation of the film. The intensity of the beam and the beam's impingement on the film is controlled in order that the charge pattern is appropriate for the formation of a spiral groove which is substantially invariant in cross-section but varies in depth along its direction of progression in accordance with the signal that modulates the intensity of the beam of electrons. The recording thus made can be used for the production of video discs capable of mechanical playback.

Abstract: A flyweight assembly and a manual speed control member are connected through a linkage to a control rod which controls the fuel injection volume of the pump so that the control rod position is determined by both the flyweight assembly and the control member. Idling and main counterforce springs resist movement of the flyweight assembly in their respective engine speed ranges. The control member is arranged to bring a spring mechanism into engagement with the idling counterforce spring when moved beyond a certain point to demand higher engine speed. The spring mechanism acts against the idling counterforce spring to move the control rod to reduce the fuel injection volume when the speed control member is moved from its idling speed position to demand rapid acceleration while the idling counterforce spring remains engaged with the flyweight assembly to prevent excessive fuel injection volume.

Abstract: A transmission system receiver compares the received signal power in a relatively narrow frequency band with the received signal power in a relatively wide frequency band, which embraces the narrow frequency band, to obtain an indication of the "SINAD ratio" which refers to the signal plus noise plus distortion to noise plus distortion ratio. The receiver also includes an automatic control system for comparing the indication with a reference and for adjusting an attenuator in response to disparity between the indication and the reference in a sense to increase the SINAD ratio above a predetermined level, or to adjust the SINAD ratio to an optimum value.

Abstract: A plunger slidable in a barrel of a plunger pump is actuated by an engine driven camshaft to feed high pressure fuel through a delivery valve to an injection nozzle. A needle type valve element extends through a nozzle chamber in the nozzle connected to the pump to control fuel flow from the nozzle chamber through an injection orifice into the engine. The needle end of the valve element is exposed to pressurized fuel in the nozzle chamber, and a spring applies a force to the other end of the valve element to urge the valve element to block the injection orifice. As the pump plunger moves through its injection stroke, the pressure in the nozzle chamber increases and overcomes the force of the spring to move the valve element to unblock the orifice to initiate fuel injection.

Abstract: A layer of metal is cast on a surface of a metal backing and while the cast metal is still molten, a varying electromagnetic force is generated along an edge of the strip which induces electric currents in the molten metal. The resulting mechanical force exerted in the molten metal is such that the metal is restrained from flowing to the edge of the strip.

Abstract: A method of making disc records, particularly video discs from thermoplastic sheet material. In a press a thin flexible matrix is disposed between the sheet, which is backed by a resilient cushion, and a flexible diaphragm which constitutes a wall of a hydraulic pressure chamber.

Abstract: An extensible interlocking structure suitable for tower cranes, scaffolding towers and the like is of multilateral cross-section and has two sets of main members which engage one another in end-to-end relation when the structure is extended. Tie members are pivoted to the main members, with the free ends of the tie members interlocking automatically with the main members during extension to provide diagonal bracing. On retraction the members may be stored on drums or in a rack.

Abstract: A lamp burning a vaporizable oil produces both a steady light and a regularly recurring bright flash. The lamp has a non-combustible wick in a cooled metal tubular wick holder, the upper part of the wick holder being surrounded by an open-topped combustion chamber which extends inwardly towards a pilot flame on the wick. Heating of the combustion chamber induces air flow causing an explosive mixture to form in the chamber; this is ignited by the pilot flame to give a bright flash.

Abstract: An eartag for cattle or other animals comprises an apertured female tab of soft plastics material and a male tab also of soft plastics material having an upstanding stem with a hollow bore, the stem having an enlarged head. A metal pin with a head larger than the head on the stem, the head being formed with a conical point, is inserted in the bore to stiffen the stem and enables the stem to be driven through the animal's ear and secured in the aperture in the female member. The pin is withdrawn leaving an eartag formed wholly of soft plastics material.

Abstract: A vehicle seat assembly is mounted for fore and aft adjustment on slides. A separate slideway extends parallel to the slides and a slide element is lockable at spaced positions along the slideway. The seat has a tilting squab and a lock is provided for locking the sides of the squab. The squab is connected by a pivotal link to the slide element so that, with the squab lock released, the seat is slid forward along its slide by swinging the squab forwardly and with the squab locked and the slide lock released, the seat as a whole can be slid forwardly on its slides.

Abstract: A receiver for a pulse radar apparatus has a pulse length discriminator in which the amplitude of the received radar signals after detection is sampled at a rate such that there would be a plurality of samples, e.g. 4 to 12 samples in the time duration corresponding to the transmitted pulse length. Processing means are provided giving an output only when the number of successive samples having a predetermined amplitude lies between predetermined limits, e.g. not less than 4 and not greater than 8.

Abstract: A venting system for a warm-air furnace, gasfired boiler or the like heating plant has an open bottom diverter box which is arranged horizontally externally of the heating plant substantially at the level of the top thereof. The top wall of the diverter box at one end section thereof is connected by a vertically upstanding U-shaped, internally unobstructed, ducting to the top of the combustion chamber of the heating plant so that fumes flow therethrough into such combustion chamber end section of the box while the top wall of the diverter box at the other end section is connected by a vertically upstanding, internally unobstructed, piping to the flue.

Abstract: In a gas cooled nuclear reactor, cesium metal release into the coolant gas is dependent on the coolant channel surface temperature in the core. The present invention relates to a filter for removing cesium from the coolant gas before it passes to the heat exchanger. The filter comprises a block or blocks of graphite having holes therein with a hydraulic diameter between 1 mm and 6 mm and a ratio of length to equivalent hydraulic diameter between 170 and 1000. This filter is arranged at one end of the reactor core so that the gases pass straight from the core into the filter block.

Abstract: The disclosure relates to a rack and pinion assembly in which flexible bellows are provided at both ends of the assembly between the ends of the rack housing and the ends of the rack. The bore at each end of the housing is enlarged and the bellows at each end of the assembly is so connected to the end of the housing and the rack that as the rack is retracted into the housing by movement in one direction the bellows is retracted into the bore and is wholly accommodated in the bore when the rack is fully retracted into the housing.

Abstract: A film winding member and a shutter cocking member are movable as a unit until the shutter is cocked, and then the film winding lever moves by itself. The film winding member is stopped when a film position sensing lever senses a hole in the film indicating the frame position. Means are provided to prevent a shutter release member from being moved until the film has been advanced and the film winding member has been returned to its initial position. The film advancing operation and the shutter cocking operation are accomplished with one stroke of the film winding member.

Abstract: A direct current power supply circuit for a photomultiplier tube comprises a step-up transformer with a secondary winding connected to rectifier means feeding output terminals. The primary winding in series with a transistor switch is connected across a d.c. supply source and the switch is controlled by pulses from a pulse generator which is switched on to produce pulses and hence to switch current in the primary winding when a control signal opens a gate in a feedback circuit of the pulse generator. The control signal is derived from the photomultiplier circuit and the circuit operates with the gate opening and closing as necessary to obtain the required voltage. The control signal may be derived from across an anode resistor of the photomultiplier tube or across a resistor in series with the dynode resistor chain according to the characteristics required.

Abstract: A brake mechanism, applicable to the braking of trailer vehicles, has an electro-magnetic arrangement which is disposed between the inner ends of coaxial wheel supporting shaft units to selectively and individually control the rotation thereof. Each shaft unit has a gearing arrangement for transmitting the braking action to the wheels. Oil is circulated between the spaces of the stationary and moving parts of each shaft unit. And the production of air pressures from heat generated by the functioning of the units is eliminated.