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Patents Completed.

22nd April 1915, Page 20
22nd April 1915
Page 20
Page 20, 22nd April 1915 — Patents Completed.
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Which of the following most accurately describes the problem?

An Expanding Wheel. Carburetter Improvements. A Novel Engine.

Copies of complete specifications of the patents published on this page can be obtained from the Sales Branch, Patent Office, Hothorn, W.C, at the cost of sixpence for each specification.

C. CAVALLT, No. 286, dated 5th January, 1914.—In this carburetter an ordinary jet is combined with a kind of surface carburetter. The jet is surrounded by two concentric tubes which are somewhat longer than itself, and a deflecting cone is fixed above them. The fuel is supplied to the jet and

passes out from it through a very small opening to the outer tubes. Each of these is provided with a side connection, which is open at its upper end to atmosphere. When working with the throttle nearly closed, the air sprays the liquid from the surface surrounding the spraying cone, but when the throttle is opened the level of the liquid is lowered, and it is thereby withdrawn from the side tubes. When the throttle is fully opened, the side tubes are emptied and the jet is brought into operation. Atmospheric air entering by the side tubes gives an increased injector effect on the jet and increases the flow of fuel.

S. RA.MSBOTHAM. No. 7093, dated 20th March, 1914.—The object of this invention is to provide a, wheel of such construction that it is not necessary to use a press in fitting a tire on to it.

The rim of the wheel is split in two parts so that it consists of two rings lying side by side, each carried by a separate set of spokes. The two sets of sookes axe inclined towards one another, as shown in the drawing, and a right and lefthanded screw is mounted between blocks at intervals round the wheel, so that the two halves of the rim can be forced apart.

The tire is easily mounted in ,place when the two parts of the rim are close together, and it is secured by forcing them apart. Owing to the inclination of the spokes their radial length is increased and the tire securely gripped by this action.

C. H. T. Aisrox, No. 3321, dated 9th February, 1914.— This specification describes a two-stroke engine in which piston-controlled inlet and exhaust ports are used.

The inlet Dort on the left-hand side is connected with a receiver and the lower end of the cylinder is used as a com pression pump to charge this receiver. The exhaust part is situated on the opposite side of the cylinder. The piston-rod is connected by an eccentric swivel to the crank-pin, so that the piston is caused to oscillate about its axis during its reciprocation; the top of the piston is provided with various upstanding ledges to mask different portions of the inlet and exhaust ports as the Piston oscillates, and the general arrangement is such that the exhaust port remains open for a shorter time on the compression stroke than on the power stroke, while the inlet port remains open longer on the compression stroke than on the power stroke.

F. F. STRATTON, No. 8492, dated 3rd April, 1914.—This invention relates to improvements in the type of carburetter in which a multiplicity of jets is employed, so that the amount of fuel and air drawn from the carburetter is proportional to the speed and suction of the engine.

In, this carburetter a. -allot jet and three main jets are arranged at the bottom. of the casing. The choke-tube for the pilot jet is provided with flanges to form separate compartments for each of the other jets. Separate air-inlets are provided for each jet, and they are controlled by apertures in a piston-sleeve to come into action progressively.

The piston also carries a series of needle talves to close the main jets, and it lifts these as the air-ports are opened.

The controlling piston is operated by the engine suction to which it is subjected on one side, while the other side is open to the air.

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Organisations: Patent Office

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