Patents Completed.
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Complete specifications of the following patents will be sent to any address in the United Kingdom upon receipt of eightpence per copy at the Sale Branch, Patent Office, Holborn, W.C.
CARBURETTER.— Lake (Stromberg Motor Devices Co.).—No. 15,575, dated 3rd July, 1909.—The special features of this carburetter are the provision of an extra air inlet valve with two separate controlling springs, and of a special arrangement to enable a rich mixture to be obtained on starting up. A cup is provided below the nozzle, and this can be Flooded by tilting the needle-release lever and thus allowing the fuel to rise in the float chamber until it overflows at the nozzle. Air is then drawn in above the cup, and this sufficiently enriches the mixture to ensure the easy starting of the engine. The jet is arranged at the imaginary apex of the conical air inlet and is surrounded by a heating jacket. The air in passing through the conical space is given a high velocity as it impinges on the fuel at the jet. The mixing chamber is slightly flared outwards like a turbine nozzle so that the velocity of the air is increased and the fuel is gasified more readily.
JOINTS FOR ATTACHING RADIATORS TO THE FRAMES OF MOTOR VEHICLES.—Lake.—No. 1,442, dated 19th January, 1910.—According to this invention, spherical-headed bolts are adapted to engage at their heads with corresponding spherical recesses formed in small brackets fixed to the sides of the radiator. The bolts are supported at the desired height by means of cone-shaped washers disposed irt the frame of the vehicle. In order that the brackets may be prevented from rising from their set positions, threaded plugs are screwed into the brackets and, for the purpose of lubricating the ball-and-socket joints so formed, small holes are provided in the tops of the brackets.
VALVE REVERSING GEAR.—T. H. Gardner and Another.—No. 22,110, dated 28th September, 1909.—This invention consists in the provison of a supplementary camshaft on an internal-combustion engine which is arranged to lift the valve tappets clear of the main camshaft while the latter shaft is tieing moved axilly in order to bring the reverse cams into operation. An alternative construction is illustrated.
DIFFERENTIAL GEAR—Elliott.---No. 15.165, dated 10th July, 1909.—This invention relates to a differential gear which gives a ereater variety of combinations than is usual. The shaft B is directly driven from the engine shaft. Pinions (K and L) are arranged to rotate with it but are capable of longitudinal motion on it. F, E, and 0 form an ordi nary differential, having, in addition, outside toothed gears which can mesh with the pinions K and L. The gear
whee F is feat on the shaft C and gives a positive drive to the shaft H, and the gearwheel 0, by means of a pinion 02 on its hub, gives a positive drive to the shaft J. If K be put in mesh with F, a positive drive is given to H and the differential and the shaft .1. are idle. Similarly if L be put in mesh with G, the shaft J is positively driven, while H remains idle. When both K and L are put in gear with F and G, a positive drive is
given to H and J, and the differential is put out of action. Finally, if either K or L be put in gear with li, an ordinary drive through the differential is obtained.
BURNERS.—Lamplough.—No. 19,191, dated 20th August, 1909.—This invention relates to a liquid-fuel burner in which the valves controlling the fuel and the air are simultaneously actuated. The burner consists of an annular air chamber surrounding a cylindrical fuel space. A conical valve closes the fuel outlet and another valve controls the air inlet. A spring tends to keep the air valve closed ; both valve stems bear on a. rocking lever which is pivoted between them. When the fuel valve is opened the lever is rocked and opens the air valve a corresponding amount so that the mixture is always constant. The various fittinge are made adjustable so that different fuels can be used.