1428
THE NEW ZEALAND GAZETTE.
[No. 45

No. 17769.—13th April, 1904.—THE NEW CENTURY ENGINE (FOREIGN PATENTS) COMPANY, LIMITED, of Finsbury House, Bloomfield Street, London, England (assignees of Edward Field, of 4, Trafalgar Square, London aforesaid, Engineer). Improvements in or relating to locomotive and other engines and generators.

Claims.—(1.) In an engine and generator, the employment of a mixture of air and steam about the pressure of the steam in the boiler heated by means of the hot gases escaping from the boiler, substantially as described. (2.) In a generator for a locomotive or other engine, the employment of a tubular heater situated in the path of the hot gases escaping from the boiler, having a supply-chamber at one end for air and steam under pressure, and a receiving-chamber at the other end for conveying the heated mixture of air and steam to the engine-cylinder, substantially as described. (3.) In a generator for a locomotive or other engine, the combination, with a tubular heater in the path of the hot gases from the boiler, of an air-compressor worked by the engine and arranged to deliver compressed air to the heater at a pressure at or above that of the steam in the boiler, and a pipe leading steam from the boiler to the heater at a point between its ends so that the steam will become mixed with the compressed air after the said air has been raised in temperature. (4.) In a generator for a locomotive or other engine, the combination, with a tubular heater in the path of the hot gases, of a steam and air injector such as 20-24 supplied with steam from the boiler, and delivering the mixture of air and steam through the heater to the engine, substantially as described. (5.) In a generator for a locomotive or other engine, the combination, with two longitudinal vessels such as b, c, each of which is divided into compartments, of groups of bent metal tubes such as e, f, g, h, disposed in the path of the hot gases, and connected with the vessels so that the tubes in each group are in parallel and the several groups are in series, substantially as described. (6.) The complete generator for an engine, substantially as described. (7.) The complete locomotive generator and engine, substantially as described, or illustrated in Figs. 1 to 7 or in Figs. 8 and 9 of the drawings.
(Specification, 9s.; drawing, 6s.)

No. 17770.—13th April, 1904.—HARRY CHARLES LA FLAMBOY, of 600, Hancock Avenue West, Detroit, Michigan, United States of America, Manufacturer. Match-making machine.

Extract from Specification:—This invention relates to match-making, and has for its object an improved machine which fills the dipping-plates employed in dipping match-splints. The splints are placed in a rotating screen, from which they drop into chutes, and, aided by the machine, arrange themselves with their axes lengthwise of the chutes. The splints pass along the chute, are freed from broken short pieces and slivers, and arrive in hopper-like receptacles, from the bottom of which they are taken by a reciprocating carrier, which forces them into the holes of perforated dipping-plates. The perforated dipping-plates advance step by step; they are arranged to stand and travel vertically in front of the carrier, and as the carrier, having filled one row of holes in the plate, retreats for another load, the plate rises and presents a succeeding row of holes for the new load of splints. When the dipping-plate has been filled, another dipping-plate falls into place beneath it, and the filled plate is deposited on a carrier and removed for further treatment.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 10s. 6d.; drawings, 6s.)

No. 17800.—19th April, 1904.—WHITE-MYLIN FURNACE COMPANY, a corporation organized under the laws of the State of New Jersey, and doing business at 44, Court Street, Brooklyn, Kings, New York, United States of America (assignees of Amos Herr Mylin, of 40, South Queen’s Street, Lancaster, Pennsylvania, United States of America, Farmer, President of the White-Mylin Furnace Company aforesaid, and Lewis Boyd White, of 22, Morris Street, Jersey City, Hudson, New Jersey aforesaid, Engineer). Improvements in and relating to furnaces.

Extract from Specification.—Our invention relates to a furnace for generating a high degree of heat and effecting practically perfect combustion of the fuel and consumption of the smoke. The important features are an outer casing or fuel-receptacle of any suitable shape having a top opening, and a shell or combustion-chamber arranged in the interior of the casing and provided with holes, preferably in its lower

portion, to admit the gases mixed with air to its interior but to exclude the coal, and with an external opening, larger if the heat is to be delivered and utilised outside of the furnace, and smaller, merely to conduct away the incombustible gases, if the heat is to be used inside. Except for this shell the interior of the receptacle is entirely open and without grate or other obstruction, so that it may be filled with coal, entirely surrounding the shell, which should be of refractory material to resist the intense heat. Means must be provided to insure a draught down through the top opening and out through the shell, and means to regulate the amount of air to be admitted through the top opening to insure a sufficient supply for the combustion, but without a substantial surplus of air. The air passes down from the top opening through the coal, from the coldest to the hottest part of the furnace, while the gases are being progressively generated, until, intimately mixed together and gradually raised in temperature, the air and gases are delivered into the combustion-chamber, where the heat is highest and most of the combustion takes place. The combustion-chamber shell is not clogged with coal or ashes, so that the chamber is maintained at a high and uniform heat, and all the combustible gases are there consumed without waste and with a high efficiency of fuel.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 9s. 6d.; drawings, 2s.)

No. 17801.—19th April, 1904.—MCCLEAN ARMS AND ORDNANCE COMPANY, of 267, St. Clair Street, Cleveland, Cuyahoga, Ohio, United States of America (assignees of Samuel Neal McClean, of 18, Glenpark Place, Cleveland aforesaid, Physician). Improvements in and relating to means for counteracting recoil in guns.

Extract from Specification.—The invention consists in a gun-barrel formed to present a series of consecutively arranged areas of resistance to the flow of the powder-gases, in association with a system of vents for controlling both the striking-energy and direction of movement of the powder-gases. These areas of resistance to the flow of the gases, as well as the vents associated therewith, are formed in the muzzle portion of the gun, which may be integrally formed with or detachably secured to the rest of the gun-barrel. . . . The gun-barrel is formed with a series of circumferential grooves or a gradually deepening spiral groove on its interior, associated with a series of lateral rearwardly inclined vents, so constructed and proportioned that the gases shall impinge upon the surfaces of the grooves and thus exert a pull in opposition to the recoil, and, after impinging upon said surfaces, the gases will escape in a rearward direction through the vents.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 14s.; drawing, 2s.)

No. 17802.—16th April, 1904.—FRED LOBNITZ, of Clarence House, Renfrew, Scotland, Engineer and Shipbuilder. Improvements in dredgers for dredging auriferous, platiniferous, stanniferous, diamondiferous, and other valuable alluvial earths.

Claims.—(1.) A screen for dredgers provided at the interior with means for receiving and delivering large stones and boulders without the same coming in contact with the screen, substantially as described. (2.) In combination, a revolving screen and a trough or grating consisting of a number of rails or bars which are supported in place within the screen, substantially as and for the purpose described. (3.) In combination, a screen, a trough or grating within the screen for receiving and delivering large stones and boulders, an obliquely arranged delivery-shoot, and an elevator arranged out of line with the screen, substantially as described with reference to the drawings.
(Specification, 3s. 3d.; drawing, 2s.)

No. 17807.—20th April, 1904.—JAMES HENRY HODGE, of 6, Bellvue Street, Glebe, Sydney, New South Wales, Australia, Engineer, and IGNACY ZLOTKOWSKI, of Grove Street, Marrickville, Sydney aforesaid, Engineer. A means for extinguishing fires within enclosed structures.

Claims.—(1.) In apparatus serviceable for extinguishing fires within enclosed structures, the primary coupling-parts affixed to the said structure, consisting of a tee-piece, having a long arm projecting outwardly, adapted to receive an external attachment communicating with the source of the quenching-fluid, and a short arm projecting inwardly, alike adapted to receive an attachment, applied from within the