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Patents Completed.

23rd February 1911
Page 30
Page 30, 23rd February 1911 — 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.—Brown and Another.—No. 411, dated 7th January. 1910.—Cognate Application No. 14,377 of 1910.—Patent of Addition to No. 27,636

of 1909.--The carburetter herein described is an improvement on that. one in which the fuel jet has a lateral orifice, which is controlled by a sleeve having a helical end, and in which, by turning the sleeve, the jet is more or less uncovered. According to this improvement, the air passage is formed horizontally round the upper part of the jet ; inside the passage is a sleeve closed at both ends, but having ports situated round it towards each end; the air passes, in the diagram. from left to right, the main air intake being at the left. Round the right-hand end of the sleeve, the casing is enlarged and provided with an auxiliary-air inlet. Adjustable sleeves are provided to adjust the air ports, if necessary. This sleeve is coupled to the sleeve surrounding the jet, so that the two operate together to control the mixture.

SPRING MOUNTING FOR DRIVING WHEELS. — Saunderson. — No. 26,372, dated 13th November, 1909.—The object of this invention is to provide a spring mounting on driving wheels of motor vehicles, and means for transmitting the drive to them. The illustration shows an elevation of a pair of driving wheels : these are rotatably mounted on a dead axle and brackets are fixed inside and adjacent to the wheels on the axle. On the brackets are fixed upright pillars carrying a bearing at the upper end, in which there is a shaft. On one end of

this shaft is provided a pinion, gearing with the spur wheel on the driving wheel. On the main frame or chassis are fixed two side brackets with arms which embrace the upright pillars. Suitable springs are interposed between the chassis and the brackets fixed on the axle. Differential driving mechanism is carried on the frame of the vehicle and is connected to the shaft carrying the universal joints. With this arrangement it will he seen that, whilst the road wheels are free to follow the inequalities of the stir

face upon which they are travelling, the pinions and spur wheels will always remain in proper engagement.

VALVE GEAR—The Austin Motor Co., Ltd.—No. 1,673, dated 22nd January, 1910.—The valves for internal-combustion engines described in this specification consist of a sleeve valve in the cylinder in which the piston works, and an ordinary mushroom valve in the cylinder head ; the sleeve is actuated independently of the piston, and controls a port formed at the upper end of the cylinder through which the exhaust can be effected. This sleeve is reciprocated by means of a. link from a disc on the half-speed shaft. During the compression and explosion strokes the sleeve travels upwards, covers the port, and

soon prevents its exposure to the high temperatures. The sleeve may have a port in it controlling the valve, but preferably the upper edge of the sleeve is used, as this enables the length of that portion of the cylinder beyond the port to be reduced to a minimum. The inlet valve is of the ordinary mushroom type in the cylinder head and is made very large; this is possibly owing to its being the only valve situated in the cylinder head. This valve need only have a small lift and can be operated more quietly than a small one of the same capacity. Either the sleeve or the mushroom valve can be used interchangeably for the exhaust and the inlet. The invention is also applicable to engines having a sleeve valve operating between the fixed cylinder and a surrounding casing.

METAL WHEELS.—Challiner.—.No. 810, dated 12th January, 1910.—A method of construction and manufacture of wrought-metal wheels for vehicles is described in this specification. These wheels are particularly applicable to heavy vehicles, such as roa,d engines, motor lorries and the like, and are in tended to resist all lateral and torsional strain. The wheel is built up of channel, girder or angle-section metal, the number of spokes being proportioned to the strength of the wheel. When using the girder section, the spokes are formed at their outer ends, so as to fit together to form a rim, and at their inner ends to form the boss in the centre of the wheel ; when they are so fitted all the joints are welded. Numerous details of construction are described and illustrated, such as the attachment of the hub. In one form, as illustrated in the accompany. ing figure, the web of the girder is cut shorter and the remaining parts of the flanges are bent outwards, and the hub is pressed into the boss thus formed. There is also described and illustrated a detachable rim for securing the tires to the wheels.

CARBURETTER. — Bailey. — No. 4,946, dated 28th February, 1941—This invention lies in constructing a jet in the form of a cowl, which is rotatably mounted with respect to the air tube surrounding it. When the jet is turned to oppose the flow of the air a very-small amount of spirit, if any, will be withdrawn, and, as the cowl is turned round, until it is in the direction of the flow of the air, a very-fine gradation of mixture can be obtained. There is also illustrated an arrangement in which the air pipe is turned with respect to the fuel jet, this,

of course, gives a similar effect. It is stated also that it might be advantageous to vary the head of the petrol at the same time as the nozzle is rotated, and this can be effected by mounting the nozzle in such a way that its tip will be raised or lowered relative to the petrol level by the act of swivelling the cowl. Various alternative forms are described and illustrated.

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