Patents Completed.
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ROTARY ENGINE—Wane and Others.—No. 25,159, dated 1.3th November, 1907.--This invention relates to rotary, internal-combustion engines. The
piston (B1) is keyed to the engine shaft (bj , and rotates on the said shaft in a circular track or cylinder (B). An exhaust pipe ;13) is provided, and also an inlet valve
(E), which is operated by the cam (jel). Between the exhaust pipe (D) and the inlet valve (E) is arranged a cut-off in the form of a wedge-shaped slide (C). This slide is operated by the cams (III and la), and it is adapted to enter an opening (cl, in the track (B), and thus to interrupt the free passage therein. The operation of the engine is as follows : Assuming the slide (C) to be in its closed position and the piston (BI) travelling in the direction in dicated by the arrow in the first figure, a working charge will first be drawn into the track or cylinder (B), through the inlet valve (E), and the exhaust gases will be forced through the pipe (D). When a predetermined position of the piston is attained, the charge is ignited by the sparking plug ((;11) and the piston will travel round the track until it nearly reaches the slide (C), when the latter will be withdrawn and closed again after the piston has passed the opening (CI). The operation will then be repeated.
MOTOR OMNIT31.-S.—De Dion and Another.—No. 7391,(08.—Dated under Convention, 12th August, 1907.—According to this invention a motor omnibus is built up of steel sheets riveted to profile iron in the following manner : —Holes having been drilled in both the iron and the sheet metal for the rivet, the hole in
the iron is counter-sunk on that side which is to be in contact with the sheet metal. When the rivet is driven in and riveted over, the edges of the hole in the sheet metal will be forced into the countersunk of the profile iron, thus strongly securing them together. The chassis on which the body is placed is provided with double-acting cushioning devices made of rubber, which minimise the vibrations produced when a shock takes place, both in the direction of the action and in the direction of the reaction.
(ARBURETTER. — liamill. — No. 26,670, dated :3rd December, 1907.—This invention relates to carburetters, and has, for its object, to provide a device whereby the engine may be started up on low-grade hydro-carbons when in a normal cold condition. The carburetter consists of the usual chamber (A), which is surrounded by a jacket (B), through which the ex. hart gases are caused to flow front the exhaust pipe (C) past a butterfly valve (D). The valve (D) is automatically controlled by a system of levers (E) operated by a thermostat (El). The thermostat (El) is provided with ports (/), which are in communication with the jacket (B), so that the changes of temperature in the said jacket will operate the thermostat. Within the chamber (A) is arranged a fuel let (III, having, enclosed in its walls, a coil of wire (II') which is arranged to be heated
electrically. The coil of wire (H4) is st rounded by a layer of ground fire ch which will quickly become incandesce: when sufficient electricity is pass through the said coil iH4). With this ( vice the low-grade petroleum will be s
ficiently vaporised for the starting the engine. Arranged over the nozzle the fuel jet (II) is a double-cone mem (1,), which can slide to and from the s nozzle; the movement of this double-c( member is controlled by the eng governor. Air is admitted through an nular jacket (K) surrounding the exha pipe (C; to the chamber (A), where ii drawn up past the fuel nozzle (El) to engine. It will he seen that the nea the double-cone member (L) is to spray nozzle (H) the greater the veloi
of the air passing the nozzle, and, cc quently, more fuel will be drawn fruit said nozzle. But, when the doublemember is raised further away from nonle, the velocity of the air will crease, and consequently the amour fuel will diminish. Therefore the qu of the mixture is regulated aceordin the speed of the engine. A coil (MI) be arranged within the exhaust pipe and it is connected to the water supp (m), and adapted to generate steam :s4; may pass to the outlet (m1) of vaporiser, to the engine supply pip directly to the engine cylinder.