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Patents Completed.

3rd October 1912, Page 22
3rd October 1912
Page 22
Page 22, 3rd October 1912 — Patents Completed.
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A Disc-Valve Gear.

W. J. Thomson—No. 18,252, dated 12th August, 1911.—This specification describes a valve-gear for internal-combustion engines. The valve chamber, in the form of a short cylinder, is set horizont

ally across the top of the engine cylinder. The two ends are closed by coverplates to which the inlet and exhaust passages are connected, ports being provided by which these passages communicate with the interior of the cylindrical casing. Inside the valve cylinder and in contact with each cover-plate there is provided a flat disc which is rotated by ordinary valve gear ; this brings a port to register with the inlet—or the exhaust passage as the case may be—so that the latter is placed in communication with the cylinder. The detailed description of the gear shows a simple coupling by which the two discs are rotated and an arrangement by which they are springpressed on to their seats.

A Combination Magneto.

F. R. Simms and The Simms Magneto Co., Ltd., No. 19,122, dated 25th August, 1911.—According to this invention a

magneto electric machine is provided with two armatures situated one above the other between the poles of the magnets. In the construction shown in the drawing, the upper armature is for lighting, and the lower for ignition. The poles of the magnets are arranged in two pairs, one pair terminating at the lighting armature, and the other pair extending past the lighting armature down to the ignition armature.

New Wolseley Sleeve Valve.

The Wolseley Tool and Motor Car Co., Ltd., and A. A. Remington No. 20,959, dated 22nd September, 1911.—According to this invention an improved construction of sleeve valve and gear is provided. The piston is surrounded by a main reciprocating sleeve valve, while at the lower end of this cylinder, in an enlargement thereof, there is an additional sleeve surrounding the main sleeve and normally stationary; it is adapted, however, to be moved by the driver through suitable lever connections. The inlet passage (shown on the left-hand side of the figure), and the exhaust passage (shown near the top of the right-band side of the figure) are arranged as described in

the prior patent No. 1421 of 1911, and the valve mechanism shown is of the kind described in patent No. 16,783 -of 1910. At the right-hand side of the figure below the exhaust passage, a supplemental inlet passage is provided which is controlled by ports in both the main and the additional sleeve. This supplemental inlet passage may be supplied with either air or mixture under pressure, and the valve gear is such as to admit an extra charge of gas.

To Clean Combustion Chambers.

J. Weller, No. 26,270, dated 23rd November, 1911.—According to this invention the combustion chamber or head is formed with a, convex inner surface or roof, having on either side openings for valve caps. By this moans the combustion chamber can readily be cleaned when

the valve caps are removed.; for example, a cloth can be passed between the valve cap openings, in order to clean the combustion chamber.

A Metal Tread for Tires.

C. P. Resemann.—No. 8093, dated 3rd April, 1912.—The outer cover of an ordinary air tube is formed with rectangular projections or blocks, which are of uniform SNP and thickness. In carrying out

this invention, a metal tread. is formed of caps which are pivoted together, and each cap fits over one of these blocks.. In one construction a fibre plate is secured on the inside of the cap by flatheaded rivets which form the non-skid device, but if it be desired, the fibre may be omitted and the rivets securea. directly on the caps. The whole chain is secured in piisition by a usual form. of connecting link which is adjustable for taking op any slackness.

Water-Jacket Construction.

Webber.—No. 21,659, dated 2nd October, 1911.—The accompanying -illustrations show a convenient construction of cylinder and water jackets. The cylinder proper, which is secured to the framing in any convenient manner, has two external flanges formed on it, one towards each end, and the jacket is slid on over the flanges. The combustion chamber, which has cast integral with it a water chamber provided with ports for communicating with the cylinder water jacket, is then secured on the end of the cylinder and holds the cylinder jacket in place. The only packing necessary for the water jacket is flat sleet packing between the frame of the engine and one end of the jacket, and between the cylinder head and the other end of the jacket. The water enters at the bottom of the cornbustion-charnher jacket and leaves from the top of the cyrinder jacket.

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