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Gas Storage Trailer With Its Own Compressor

6th July 1940, Page 32
6th July 1940
Page 32
Page 32, 6th July 1940 — Gas Storage Trailer With Its Own Compressor
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A Résumé of Recently Published Patent Specifications Obtainable from the Patent Office, Price Is. Each

piTWO-WHEELED trailer, carrying gas storage cylinders and its own engine-driven compressor, is the subject of patent No. 521,204 by J. Maine, 2, Stockingstone House, Heywood Drive, Luton. The inventor's object is to provide an emergency outfit by which a vehicle could be enabled to travel if no petrol were available.

Five gas cylinders (3) are carried, stacked in a cradle attached to the axle. The three lower cylinders are for highcompression storage, whilst the two upper ones utilize a lower pressure. The engine and two-stage compressor form a unit (2) at the rear, whilst the reducing valve (1) and out-take pipe are positioned at the forward end.

HYDRAULIC GEAR OF INCREASED EFFICIENCY

A GEAR of the fluid torque-converter CA type forms the subject of patent No. 520,424 by P. Salerni, Lillibrooke Manor, Cox Green, Berks. It is claimed for this gear that the efficiency is increased by streamlining the ducts, whilst it efficiently combines the duties of clutch and speed gear.

The drawing shows the impeller (2), the driven member (6) and the reaction member (5), the last-named being restrained from rotation in one direction. The improvements rest mainly in the design of the vanes; these are thinnest at the impeller. inlet (3), gradually thickening towards the exit (1) so that in spite of the increasing diameter of the impeller casting, the cross-sectional area of the passages remains constant. Another feature is the use of bulbous bodies (4) at the entrance to the impeller, also ol the reaction member, the object being to reduce eddying caused by the transfer of the fluid. Earlier patents are mentioned, Nos. 505,356 and 493,459, whilst the present patent gives comprehensive details accompanied by 24 illustrations.

NON-DISTORTION PROMOTING SUSPENSION SYSTEM

A CCORDING to patent No. 521,,289, .1-1.from Guy Motors, Ltd., and R. Dean-Averns, Wolverhampton, the usual eight-point attachment of springs to chassis gives rise to serious frame distortion in vehicles traversing rough ground. To avoid this is the object of the improved method of spring attachment shown in the patent.

Two systems are outlined, one of which is shown in the drawing. In this case the springs are housed at one end in ball joints (1) held in frame brackets, whilst at the other they are located in ball-joints carried by a third transverse spring (2) pivoted to the frame at its centre, so that it can rock in a vertical plane.

An alternative proposal is to substitute rigid bars for the side springs; these, however, are pivoted in the same manner as the springs they replace.

NOVEL TWO-STROKE OIL ENGINE BY RICARDO

PATEN T No. 521,147 comes from an expert in oil-engine design, H. Ricardo, 21, Suffolk Street, London, S.W.], and discloses a design for a two-stroke engine. The drawing shows a section of the cylinder, which employs a central overhead exhaust valve (1) and a tangential ring of piston-controlled ports (2) for the admission of the air charge.

The combustion chamber has the shape of a flattened sphere, 'and is centrally situated, though it may be offset within the limit .of the cylinder bore. The injector (not shown) is located tangentially in the combustion chamber, and the spray travels in a downstream direction with respect to the swirl induced by the inlet ports. The combustion chamber is provided with a heat-insulated ring (3), which also forms a restriction, the bore being about 0.8 of the chamber diameter, but ndt less than the diameter of the exhaust valve. The vertical length of the chamber is between 0.4 and 0.45 of its diameter.

The piston may be flat-topped as shown, or it may be provided with a protrusion which enters the mouth of the combustion chamber. A point of interest is that the exhaust valve is masked, that is, it can open slightly before any gas can pass.

Tags

Organisations: Patent Office
People: H. Ricardo, J. Maine
Locations: Wolverhampton, London

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