Abstract: A resilient drive for a fuel injection pump governor comprising a resilient coupling connecting the governor speed sensing mechanism to the governor shaft. In a preferred embodiment, the governor flyweight assembly is rotatably mounted with respect to the governor shaft and is connected thereto by a resilient coupling which permits the limited momentary rotation of the flyweight assembly with respect to the shaft to dampen torsional vibrations.

Abstract: The economic value of an animal (e.g. a sheep) is enhanced by bonding the incisor teeth together in a group, when the teeth are fully matured, but before trauma of the teeth has occurred, with an apertured brace which is bonded to the group of teeth by means of a hardened bonding composition to leave the incisal edges of the group of teeth exposed. The invention also relates to a splint for stabilizing animal teeth to reduce the risk of trauma.

Abstract: A liquid seal valve, intended in particlar to form part of an inert gas system for supplying inert gas to a storage tank in which liquid fuel may be stored, comprises a first vessel having a gas outlet therefrom, and a gas inlet pipe extending downwardly into a second vessel containing a liquid trap, the lower end of the gas inlet pipe being disposed below the level of the surface of the liquid trap when there is no gas flow through the gas inlet pipe. The second vessel communicates, in a region above the level of the surface of the liquid trap, with the first vessel, whereby gas entering the valve via the gas inlet pipe can flow via the second vessel to the gas outlet in the first vessel. Pipe means provides communication between the lower end of the gas inlet pipe and at least two regions in the first vessel, of which at least one is below and at least one is above the level of the surface of the liquid trap when no gas flows through the gas inlet pipe.

Abstract: A constant depression carburettor has an auxiliary throttle member associated with a sensor which delivers a signal representative of the position of the auxiliary throttle member. A solenoid valve is actuated by pulses received from a control circuit which receives input signals from sensor. The solenoid valve meters the fuel delivered to the intake passage via a discharge orifice located at the throat of a venturi limited by a swelling of the intake passage and by the throttle.

Abstract: A free piston internal combustion engine has at least a motor cylinder formed with intake and exhaust ports and a driving piston reciprocating in said cylinder and cooperating with the exhaust ports. Air delivery means are formed in the cylinder for supplying air originating from a compression cylinder associated with the motor cylinder as a jet directed along the driving piston, towards the head ring of the latter to prevent overheating. The cylinder may additionally be provided with a circuit for circulating a coolant.

Abstract: A fluid injector, for example for injecting liquid fuel into a combustion chamber, comprises a valve housing and an injector assembly which may be removably mounted on the valve housing. The injector assembly includes discharging means for discharging fluid from the injector assembly, ducting for conveying the fluid between the valve housing and the discharging means and a control valve movable to a first position in response to flow of the fluid in a first direction through the ducting to close the discharging means and return the fluid from the discharging means to the valve housing and movable to a second position in response to flow of the fluid in a second direction through the ducting to open the discharging means to allow at least some of the fluid conveyed to the discharging means to be discharged therefrom and to return any surplus fluid to the valve housing. Provided in the valve housing are inlet and outlet passages for conveying the fluid into and from the valve housing, and a change-over valve.

Abstract: Apparatus for selectively removing a layer of light liquid such as oil from a body of water. The apparatus includes a floating hull having two lateral parts and a central part between the lateral parts forming ducts directing a flow of water and light liquid to separator means in the hull. Means are provided on the central part for creating vortices in the water flowing into the ducts which diminish the divergence of the flow at the water surfaces.

Abstract: Fiberization of thermoplastic materials is effected by a technique employing an attenuating blast having a Coanda surface on the blast nozzle lip, the arrangement providing for delivery of a stream of molten material into the region of gaseous currents flowing over the Coanda surface into the blast. Provision is also made for employment of a secondary jet directed to flow over at least a part of the Coanda surface into the blast.

Abstract: A carburettor for an internal combustion engine comprises a main fuel supply system for normal running, opening into a venturi in the induction passage of the carburettor, and at least one auxiliary circuit for supplying a flow of air/fuel mixture for low speed and low-load operation of the engine. The mixture control means for the circuits are carried by a distribution block arranged to be inserted and removably fixed in the part of the induction passage situated in the vicinity of the venturi.

Abstract: A fluid injector, for example for injecting liquid fuel into a combustion chamber, comprises a valve housing and an injector assembly removably mounted on the valve housing. The injector assembly includes discharging means for discharging fluid from the injector assembly, ducting for conveying the fluid between the valve housing and the discharging means and a control valve movable to a first position in response to flow of the fluid in a first direction through the ducting to close the discharging means and return the fluid from the discharging means to the valve housing and movable to a second position in response to flow of the fluid in a second direction through the ducting to open the discharging means to allow at least some of the fluid conveyed to the discharging means to be discharged therefrom and to return any surplus fluid to the valve housing. Provided in the valve housing are inlet and outlet passages for conveying the fluid into and from the valve housing, and a change-over valve.

Abstract: A fuel injection pump of the rotary distributor type having opposed fuel pumping pistons housed within a rotor and actuated by an internal ring cam. Fuel distribution, metering and timing control are effected through ports and slots associated with the rotor, the pump housing and a spill sleeve. The angular position of the cam is varied automatically in accordance with changes in engine speed as are the relative positions of certain ones of said ports and slots to provide an automatic advance of the fuel injection timing. The pump is particularly suited for electronic governing, electronic timing control and electronic control of rate of injection.

Abstract: A snap-acting drain valve for draining a fluid system upon the occurrence of a predetermined temperature condition of the fluid. A spring-loaded valve is held closed against the spring force by a latching mechanism comprising a spring loaded latching lever engaging a shoulder on the valve stem, and a temperature sensitive actuator controlling movement of the latching lever. Upon occurrence of the predetermined fluid temperature, the actuator permits the latching lever to disengage from the valve stem shoulder, thereby releasing the valve which opens under spring force. The valve is non-modulating and will not close until manually reset even if the fluid temperature should increase to a level above the predetermined level.

Abstract: A maul head for a wood splitting maul includes a raised ear disposed centrally on each side face of the head. The ears are of a substantially smaller width than the side faces of the maul head and are configured to provide a wedge shaped entry portion which is spaced from the cutting edge of the side faces. The distance between the outer faces of the ears progressively increases from the leading edge to the trailing edge of the ears. The ears provide an increased splitting action after the initial penetration of the cutting edge.

Abstract: Method and apparatus are disclosed for forming fibers from attenuable materials, especially mineral materials such as glass, the disclosed technique including components providing for attenuation by toration, i.e., attenuation by delivering a stream of attenuable material in attenuable condition into the zone of interaction of a gaseous jet penetrating into a larger gaseous blast.

Abstract: Method and apparatus are disclosed for forming fibers from attenuable materials, especially mineral materials such as glass, the disclosed technique including components providing for attenuation by toration, i.e., attenuation by delivering a stream of attenuable material in attenuable condition into the zone of interaction of a gaseous jet penetrating into a larger gaseous blast. The blast, jet and means for delivery of the stream of attenuable material are disclosed in an interrelationship according to which the device for generating the blast is arranged to deliver the blast in a downwardly directed path, in which the means for generating the jet is arranged to deliver the jet laterally into the blast, in which the stream of attenuable material in attenuable condition is delivered downwardly from a delivery orifice in a position between the blast generating device and the jet generating means, and in which the orifices for both the jet and the attenuable material are spaced from the blast.