Jan. 30.] THE NEW ZEALAND GAZETTE. 277

gas- and air-ports and a common opening leading into a mixture-conduit, intervening adjustable rings provided with ports adapted to register with gas- and air-openings of the valve-shell and with the ports of the rotating valve, and cylinder-valves in communication with mixture-conduit, the cylinder, and exhaust-conduits. (9.) In a gas-engine provided with a plurality of cylinders in line, and valves adapted to control the admission of the explosion-mixture to the cylinders and the exhaust therefrom, and having a closed chamber in the base of the engine with a conduit leading therefrom, exhaust-conduits leading from the cylinder-valve to the closed chamber. (10.) In a gas-engine, a multiple piston-structure comprising two inner piston-heads rigidly connected, and two supplemental piston-heads, one beyond each of the inner piston-heads mounted on extended hollow piston-rods secured to and projecting outwardly from the inner piston-heads, and inner pipes telescoping within the hollow piston-rods adapted to furnish water therethrough and to the interior from a stationary source of supply.
(Specification, 8s. 9d.; drawings, 4s.)

No. 13293.—10th February, 1900.—WILLIAM MORRIS MORDEY, of 82, Victoria Street, Westminster, England, and GUY CAREY FRICKER, of 149, Fleet Street, London, England, Electrical Engineers. Improvements in electricity-meters.

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

Claims.—(1.) An electricity-meter wherein an armature comprising a suitably shaped piece or pieces of soft iron mounted on an arbor is arranged in a coil or winding (after the manner of a galvanometer-needle and its coil), the armature and coil or winding being so constructed and arranged in relation to a suitably driven escapement that when the current to be measured (or a proportion thereof) passes through the coil or winding the armature will, by the combined action of the current and of the escapement, be caused to oscillate across the magnetic lines of force at a rate proportional to the current, the armature, when no current is passing, taking up a position of rest under the control of the escapement at or near one or other of the extreme positions of its stroke or throw, substantially as described. (2.) In an electricity-meter of the type wherein an armature of soft iron is caused to oscillate under the influence of magnetic force produced by the current to be measured, or a proportion thereof, short-circuiting or shunting the coil or winding, when the armature is in or near its central position, for the purpose of preventing the armature stopping in such position. (3.) In an electricity-meter of the type referred to in the preceding claim, a short-circuiting device constructed and operating substantially as described with reference to Fig. 6, or modified according to Fig. 7, of the drawings. (4.) An electricity-meter of the type referred to in claim 1, wherein iron is arranged external to the coil or winding surrounding the armature, substantially as described. (5.) An electricity-meter of the type referred to in claim 1 provided with magnetic poles arranged to repel the oscillating armature from each of its extreme positions, substantially as described. (6.) Electricity-meters constructed, arranged, and operating substantially as described and illustrated.
(Specification, 10s.; drawings, 2s.)

No. 13297.—3rd 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.) In an electrically propelled car, a braking-controller independent of the running-controller, which can be operated to connect the car motor or motors in a braking-circuit and to apply and control the brakes, substantially as described. (2.) For electric cars, an electric braking system comprising the car motor or motors, the running-controller and a braking-controller, and in which, after the braking-controller has been operated to connect the motors in a local braking-circuit, the brakes may be controlled by means either of the braking-controller or the running-controller at will, substantially as described. (3.) An electric controller having a switch and a resistance controlling device mounted on the same shaft, so constructed and arranged that the switch and resistance controlling device may be moved together, or the resistance device may be moved independently of the switch by rotation of the shaft. (4.) The means for automatically locking and unlocking a switch from a rotary shaft carrying the same, substantially as described with reference to the drawings. (5.) A controller having its movable contact-bars separated from the stationary contact-fingers by means of insulating sheets, substantially as described, and shown in the drawings. (6.) An electric controller having a rotatable carrier provided with a plurality of contact-bars adapted to revolve in different planes and to connect with corresponding stationary contact-fingers, one or more of the contact-bars having an extension or extensions overlapping one or more of the other bars so that the same finger may make contact with two or more of the contact-bars at different times, substantially as described. (7.) An electric braking system arranged and operated substantially as described with reference to the drawings.
(Specification, 15s.; drawings, 4s.)

No. 13298.—7th January, 1901.—JAMES THOMAS HUNTER, of Queen's Chambers, Wellington, New Zealand, Engineer (nominee of Frank Clarence Newell, of 432, Ross Avenue, Wilkinsburg, Allegheny, Pennsylvania, United States of America, Electrical Engineer, and Edwin Musser Herr, of 6338, Marchand Street, Pittsburg, Allegheny aforesaid, Engineer). Improvements relating to electric railways.

Claims.—(1.) In an electro-magnetic brake apparatus, a brake magnet provided with a plurality of coils, whereby the magnetic force and braking-force may be varied by varying the effectiveness of one or more coils. (2.) An electro-magnetic brake apparatus provided with a plurality of shoes and a plurality of coils, which coils possess different numbers of turns, so that they will saturate the shoes at different current-strengths, whereby the number of shoes which are effectively operative varies according to the current. (3.) In a brake apparatus, the combination of a magnetic brake-shoe with a brake-shoe adapted to be mechanically applied, and a connection between them whereby the magnetic brake-shoe may by its movement apply the other one. (4.) A magnetic track-brake device having shoes adapted to bear on a track-rail, and a flexible connection between them to enable the shoes to conform to irregularities in the rail. (5.) The method of heating electric cars by connecting electric heaters in the local braking-circuit, to which current is supplied by the motor when driven as a generator by the momentum of the cars. (6.) In an electric-heating system for cars, the combination with an electrical generator on the car, which is adapted to be operated by the momentum of the car, of a local braking-circuit to which current is supplied by the generator, and an electric heater within the car which is connected with the local braking-circuit so as to receive current from the generator. (7.) The several forms of brake-apparatus constructed and operating substantially as described with reference to the drawings. (8.) The various improvements in electric-heating apparatus substantially as described with reference to the drawings.
(Specification, £1 4s.; drawings, 5s.)

No. 13300.—7th January, 1901.—CHARLES ALBERT KELLER, of 88, Rue du Rocher, Paris, France, Electrical Engineer. Improvements in or relating to resistance electric furnaces.

Claims.—(1.) In an electric resistance furnace, the arrangement of two electrodes forming two distinct foci and permitting of the elimination of the sole-plate from the electrode point of view, one of the electrodes serving for the delivery of the current and the other electrode for its return to the source of energy, the material under treatment serving as the common conductor, and being practically unaffected by the carbons of the electrodes. (2.) In a resistance electric furnace, the controlling mechanism for the electrodes which enables the operator notably at the moment of running off the molten material to automatically double the power of one of the foci without varying the work of the source of current, and of displacing the front focus towards the run-off orifice in order to assist the running-off by developing at this point a great heating-power, substantially as set forth. (3.) In a resistance electric furnace, the system of raising the electrodes enabling the two electrodes to be operated together or separately from one and the same mechanism, to raise one of the electrodes and to give to the other a simultaneous ascending motion and lateral motion, to cause the focus to spread sideways, and consequently obviating the drawbacks of the raising of the electrodes. (4.) In a resistance electric furnace, the use of a controlling mechanism for the electrodes which permits of the establishment of an electric equilibrium such that after the running-off the electrodes can be replaced exactly in their original positions without danger of over-charging the source of current, and thus admitting of obtaining the point of fusion at any desired height in the furnace, and, moreover, of being able to use the electrodes more completely without danger of destroying the parts attached thereto, substantially as described with reference to the drawings.
(Specification, 10s.; drawings, 1s.)