July 23.] THE NEW ZEALAND GAZETTE. 1671

and draw-off attachment for vessels comprised by its parts denoted by the letters a to g, in operative combination with a threaded tube as h, made secure by a jam collar or nut as j, substantially as and for the purposes set forth, and as illustrated in Figs. 1 to 5 of the drawings. (5.) A self-grip attachment comprised by its parts, as denoted by the letters a to g, in operative combination with a threaded bolt or rod as p, substantially as and for the purposes set forth, and as illustrated in Fig. 6 of the drawings.
(Specification, 4s. 6d.; drawing, 1s.)

No. 16535.—24th June, 1903.—HERMAN CHARLES WOLTER-
ECK, of 3, Edinburgh Mansions, Howick Place, Victoria Street, London, England, Consulting Chemist. Improvements in the manufacture of hydrocyanic acid and metallic cyanides.

Claims.—(1.) The manufacture substantially as described of hydrocyanic acid by passing a mixture in equal volumes of dry ammonia, volatilised or gaseous carbon compound, and hydrogen over a heated catalytic agent. (2.) The manufacture substantially as described of a metallic cyanide by passing a mixture in equal volumes of dry ammonia, volatilised or gaseous carbon compound, and hydrogen over a heated catalytic agent, and absorbing the product by a suitable reagent. (3.) The manufacture substantially as described of hydrocyanic acid by passing a mixture in equal volumes of dry ammonia, carbonic acid, and hydrogen over a heated catalytic agent. (4.) The manufacture substantially as described of a metallic cyanide by passing a mixture in equal volumes of dry ammonia, carbonic oxide, and hydrogen over a heated catalytic agent, and absorbing the product by a suitable reagent. (5.) The manufacture substantially as described of hydrocyanic acid by passing a mixture of one volume of dry ammonia and two volumes of dry water-gas over a heated catalytic agent. (6.) The manufacture substantially as described of a metallic cyanide by passing a mixture of one volume of dry ammonia and two volumes of dry water-gas over a heated catalytic agent, and absorbing the product by a suitable reagent. (7.) The manufacture substantially as described of hydrocyanic acid by passing a mixture of one volume of dry ammonia and two volumes of dry water-gas over platinised pumice heated to a bright-red heat. (8.) The manufacture substantially as described of a metallic cyanide by passing a mixture of one volume of dry ammonia and two volumes of dry water-gas over platinised pumice heated to a bright-red heat, and absorbing the product by a suitable reagent.
(Specification, 2s. 6d.)

No. 16536.—24th June, 1903.—WILLIAM ERNEST HUGHES, of Queen’s Chambers, Wellington, New Zealand, Patent Agent (nominee of William Clark Mitchell, Works Superintendent, and Mark Cummins, Engineer, both of Westinghouse Works, Trafford Park, Lancaster, England). Improvements relating to brakes for vehicles.

Claims.—(1.) Braking apparatus for cars, trucks, and other vehicles, having brake-blocks adapted to be applied with substantially equal pressure to the wheels on each side of the vehicle when the operating-means is moved in either direction from its normal position. (2.) For the purpose of applying the brake-blocks with substantially equal pressure to the wheels on each side of the vehicle, a transverse shaft connecting the brake-rods and connections at one side with those at the other, and mounted in floating bearings so that it can take up varying positions. (3.) For the purpose of applying the wheel-blocks of braking apparatus with substantially equal pressure to all the wheels of the vehicle when the operating-means is moved in either direction from its normal position, a pair of rods disposed one above the other on each side of the vehicle, connecting the equaliser brake-beams together in a manner corresponding to a pin-and-slot connection, and having a lever pivotally secured to both rods to which power is transmitted, whereby a pull is transmitted through one rod in one direction and through the other rod in the opposite direction to apply the brakes. (4.) The several forms of braking apparatus having their parts constructed, arranged, and adapted, for use substantially as described, and shown in the drawings.
(Specification, 11s.; drawing, 5s.)

No. 16537.—24th June, 1903.—WILLIAM ERNEST HUGHES, of Queen’s Chambers, Wellington, New Zealand, Patent Agent (nominee of George Westinghouse, of Westinghouse Building, Pittsburg, Pennsylvania, United States of America, Manufacturer). Improvements in controlling systems for electric motors.

Claims.—(1.) In a controlling system of the kind described, having a series of independently actuated contacts for chang-
ing the grouping of the motors and the resistance of their circuits, and arranged to be operated by pneumatic or other power, the provision of means for effecting progressive operation of a plurality of said contacts without movement of the governing switch so as to effect an automatic acceleration of the motors controlled thereby. (2.) In a controlling system of the kind described, motor-controlling switches the closure of which operates interlocking switches included in the governing circuit, and thereby automatically insures the closure of another motor-controlling switch or switches, substantially as described. (3.) In a controlling system of the kind described, an arrangement for rendering the governing circuit of the motor-control switches dependent on the operation of the first of these switches except when the governing switch is in its first position, substantially as described. (4.) In a controlling system of the kind described, an arrangement for preventing closure of the main circuit-breaker except when the governing switch is in its first position, substantially as described. (5.) A controller for electric motors having a plurality of annularly disposed independently actuated contacts, and provided with a single blow-out magnet centrally located with reference to said contacts, having pole-pieces that project alternately from the poles of the magnet between adjacent contacts, substantially as described. (6.) In a controller, the arrangement of a resilient lost-motion connection between the drum and the operating-handle therefor, provided with a dashpot comprising two liquid-containing chambers connected by ports and passages, and a piston in one of said chambers connected to the controller drum and having means operated by an excessive current in the motor-circuit to stop or materially impede the movement of the drum during the time that such excessive current continues to flow, substantially as described. (7.) A controlling system for electric motors, provided with a plurality of separately operated motor circuit switches arranged and operating substantially in the manner described with reference to Fig. 2 or to Fig. 12 of the drawings. (8.) For electric motors, a controller constructed and operating substantially as described with reference to Figs. 3 to 5, or to Figs. 13 to 17, of the drawings. (9.) A controller constructed and operating substantially as described with reference to Figs. 6 to 11 of the drawings.
(Specification, £1 11s.; drawing, 6s.)

No. 16553.—26th June, 1903.—JAMES WILLIAM BRANFORD, of Wanganui, New Zealand, Railway Porter. An improved tethering-post.

Claims.—(1.) A tethering-post comprising, in combination, a post driven into the ground and a pipe capable of revolving upon the post and to which the tethering-rope is secured, substantially as and for the purposes set forth. (2.) A tethering-post comprising, in combination, a post driven into the ground and provided with a base plate, a pipe capable of revolving upon the post and to which the tethering-rope is secured, and a stud fixed in the top of the post and provided with a nut and washer, substantially as set forth.
(Specification, 1s. 3d.; drawing, 1s.)

No. 16554.—26th June, 1903.—ROGER ARNULPH MONTGOMERIE, of Wanganui, New Zealand, Farmer. An improved fencing-dropper.

Claims.—(1.) A fencing-dropper comprising short lengths of wire having their ends bent to form eyes through which the fencing-wires are passed, and by which the said lengths of wire are linked together, substantially as and for the purposes set forth. (2.) A fencing-dropper comprising short lengths of wire having their ends bent to form eyes through which the fencing-wires are passed, and by which the said lengths of wire are linked together, the eyes being reversed as required to cause the dropper to hang perpendicularly, and fastenings of thin wire to fix the eyes to the upper and lower wires of the fence, substantially as and for the purposes set forth.
(Specification, 1s. 9d.; drawing, 1s.)

No. 16555.—24th June, 1903.—ARTHUR DALE, of Morven, Canterbury, New Zealand, Farmer. An improved attachment device for the traces of driven horses.

Claim.—The means for connecting a horse for draught to a cart or other like conveyance, which consists of the combination with a specially shaped shaft-end, of an iron collar rigidly attached thereto, a metal piece athwart said shaft-end behind the collar-piece that bears against the collar during draught, and links to which the trace-chains are attached that are connected to the athwart piece, substantially as described and illustrated, and for the purposes specified.
(Specification, 2s.; drawing, 1s.)