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THE NEW ZEALAND GAZETTE.
[No. 15

No. 12527.—9th April, 1900.—EDWIN GIRDLER, of Green Hills, Southland, New Zealand, Engineer. Improvements in jaws for stone-crushers.*

Claim.—In improvements in jaws for stone-crushers, frames having adjustable teeth forming jaws, with plates and flanges for securing the teeth, and the plates being movable for adjusting the teeth, which are formed so as to lock into one another, substantially as shown and as described, and for the purposes set forth.
(Specification, 1s. 9d.; drawings, 1s.)

No. 13230.—20th December, 1900.—JOHN JOSEPH DAILY, of Victoria Street, Richmond, Christchurch, New Zealand, Chemist. Improved boots and shoes on hygienic principles.

Claims.—(1.) For an opening in the heel-soles and instep-soles of boots and shoes to admit a current of air to the feet, such openings being protected by metal tubes A, B, inlaid in the boot- and shoe-soles, and secured therein by nails or screws, as shown at C and D and L, L. (2.) For a layer of sheet rubber fixed in the heel-soles, as shown at E, F, G, which acts as a cushion to the heel, and also, in combination with the circular openings in the heels, acting as a force-valve in pressing the air-current upwards round the feet while the body is in motion, and for being secured between the sole-leather of the heels, as shown and marked at E, F, G, and metal tubes K, K, and how the metal tubes are secured L, L.
(Specification, 2s.; drawings, 1s.)

No. 13234.—10th December, 1900.—JOHN FRANCIS CORRICK, of Havelock, Marlborough, New Zealand, Engineer. Improvements in conveyers or elevators.

Claim.—An endless trolley-way, with parallel lines of railway-iron, cable, or other material run in any direction, and continued in a vertical curve at the ends, are united again at the beginning, forming an endless pair of rails one over the other. A trolley, or any number of trolleys, with wheels attached in such a way that two wheels are above and two below the lines. The top wheels take the weight when on the top rails, and as the trolley turns over at the end the other two wheels take the weight when the trolley is running on the lower rails. The wheels are set in a frame set on hinges or centres so that they adapt themselves to the curve, or they may be fixed for any given curve. A belt, cable, or chain is attached to the trolleys for controlling them.
(Specification, 1s. 9d.; drawings, 1s.)

No. 13287.—28th April, 1900.—FRANK CLARENCE NEWELL, of 432, Ross Avenue, Wilkinsburg, Pennsylvania, United States of America, Engineer. Improvements in automatic regulators for electric brakes.

[NOTE.—This is an application under section 106 of the Act, the date given being the official date of the application in the United States of America.]

Claims.—(1.) In a brake system for electrically propelled cars, a local braking-circuit to which current is supplied by a motor acting as a generator, with a regulating-device for shunting a portion of the current around the field-coil of the motor when the current in the braking-circuit is excessive. (2.) An automatic regulator constructed and operating substantially as described with reference to Figs. 1 and 2 of the drawings. (3.) An electric braking-circuit for cars arranged and operating substantially as described with reference to Fig. 3 of the drawings.
(Specification, 2s. 6d.; drawings, 1s.)

No. 13288.—28th April, 1900.—FRANK CLARENCE NEWELL, of 432, Ross Avenue, Wilkinsburg, Pennsylvania, United States of America, Engineer. Improvements in electric brake-shoes.

[NOTE.—This is an application under section 106 of the Act, the date given being the official date of the application in the United States of America.]

Claims.—(1.) A magnetic brake-shoe device having a body or core made up of a series of plates or laminæ securely fastened together and provided with wearing-shoes at its ends or poles. (2.) In a brake-shoe device a brake-shoe body having projecting ends, a slot in each end, and wearing-shoes with projecting ribs adapted to be secured in the slots. (3.) A magnetic brake-shoe device having a body or core composed of a series of plates or laminæ securely fastened together, a wearing-shoe secured at the end of the body, said body being wider at its end where the shoe is attached than at other portions, and additional plates secured to the side of the body at such narrower portions whereby a uniform area of cross-section is obtained throughout the length of the body. (4.) A magnetic brake-shoe device substantially as described, and illustrated in the drawing.
(Specification, 2s. 3d.; drawings, 1s.)

No. 13289.—2nd May, 1900.—FRANK CLARENCE NEWELL, of 432, Ross Avenue, Wilkinsburg, Pennsylvania, United States of America, Engineer. Improvements in electric brakes.

[NOTE.—This is an application under section 106 of the Act, the date given being the official date of the application in the United States of America.]

Claims.—(1.) A brake-mechanism of the class described, in which the rail-shoe is connected to the wheel-shoes through a rock-shaft provided with a cam which operates to set the wheel-shoes when the rail-shoe is applied. (2.) A brake-mechanism of the class described for use with a multiple truck, having yielding connections between the wheel-shoes, so that one of the wheel-shoes is set against its adjacent wheel with greater force than that with which the other wheel-shoe is applied to its wheel when the rail-shoe is attracted to the rail, substantially as and for the purpose specified. (3.) Brake-mechanism constructed and operating substantially as described, and shown in the drawings.
(Specification, 4s. 6d.; drawings, 2s.)

No. 13290.—3rd January, 1901.—JOSEPH WILLIAMS, Jun., of Pittsburg, Pennsylvania, United States of America, Manufacturer. Improvements in gas-engines.

Claims.—(1.) A four-cycle explosion-engine comprising four cylinders in line provided with pistons rigidly connected, and also provided with valves and igniting-devices so operated and timed that the four separate steps of suction, compression, explosion, and exhaust take place successively in each cylinder, whereby the engine receives an impulse with every stroke, substantially as set forth. (2.) A four-cycle explosion-engine consisting of a main frame provided with oppositely disposed inner cylinders and an intervening crank-chamber, supplemental outer cylinders beyond the inner cylinders, such cylinders being provided with valves and igniting-devices, and means whereby such valves are operated, so that these four separate steps of suction, compression, explosion, and exhaust take place successively, and a series of rigidly connected pistons mounted in the cylinders with a connecting-rod secured to the crank and to such piston-structure, substantially as set forth. (3.) A four-cycle explosion-engine consisting of a main frame provided with oppositely disposed inner cylinders, an intervening crank-chamber, supplemental outer cylinders beyond the inner cylinders, pistons mounted in the inner cylinders having intervening rigid connections with clearance-spaces for the shaft, crank and connecting-rod, a connecting-rod secured to one of the inner pistons and to the crank of the engine, pistons mounted in the outer cylinders on rods secured to the inner pistons, and valves and igniting-devices so operated and timed that the four separate steps of suction, compression, explosion, and exhaust take place successively in each cylinder, whereby the engine receives an impulse with every stroke, substantially as set forth. (4.) A four-cycle explosion-engine comprising four cylinders in line, a rigidly connected piston-structure provided with piston-heads adapted to operate in the cylinders, internal telescoping water-supply pipes for cooling the piston-rods, governor-controlled gas-and-air-mixing valves with conduits leading to the cylinder-valves, and cylinder-valves provided with ports adapted to communicate with interior of the cylinders and with the inlet- and outlet-ports respectively. (5.) A four-cycle explosion-engine comprising four cylinders in line, a rigidly connected piston-structure provided with piston-heads adapted to operate in the cylinders, internal telescoping water-supply pipes for cooling the piston-rods, governor-controlled gas-and-air-mixing valves with conduits leading to the cylinder-valves, cylinder-valves provided with ports adapted to communicate with the interior of the cylinders and with inlet- and outlet-ports respectively, and exhaust-conduits communicating with the cylinder-valves and with a muffler chamber in the base of the engine provided with an exhaust-outlet. (6.) In a gas-engine, a gas-and-air-mixing valve consisting of an outer shell, gas- and air-supply opening therein, a rotating valve provided with gas- and air-ports and a common opening leading into the mixture-conduit, and intervening rings provided with gas- and air-ports respectively adapted to communicate with the gas- and air-openings of the valve-shell and with the ports of the rotating valve. (7.) In a gas-engine, a gas-and-air-mixing valve consisting of an outer shell, gas- and air-supply openings therein, a rotating valve provided with gas- and air-ports and a common opening leading into the mixture-conduit, and intervening rings provided with gas- and air-ports respectively adapted to communicate with the gas- and air-openings of the valve-shell and with the ports of the rotating valve, and provided with means for adjusting them independently to control the flow of the gas and air to the rotating valve. (8.) In a gas-engine, the combination of speed-controlled governor, a gas-and-air-mixing valve consisting of an outer shell, gas- and air-supply openings therein, a rotating valve connected with and adapted to be operated by the governor, provided with