1930
THE NEW ZEALAND GAZETTE.
[No. 59

(3.) In a quadruplex telegraph system, a main line, a source of current, transmitting-devices at one end of the line adapted to deliver current to the line, a local circuit at the receiving end of the line, a receiving instrument in the local circuit, a local relay operating to close and open the local circuit of the sounder, a non-polar relay in the main-line circuit adapted to actuate the local relay, and electrically actuated means interposed between the armature of the non-polar relay and the armature of the actuating relay, said electrically actuated means operating to keep the non-polar relay armature in a state of vibration during the periods of operation of the main-line current upon said armature. (4.) In a quadruplex telegraph circuit having the receiving sounder in a local operating circuit and a non-polar relay in the main line through which the main-line current operates the local circuit to produce signals on the sounder, the combination of an auxiliary circuit-closing device in the local circuit between the sounder and the main-line relay, and including a relay and an armature vibrated thereby and means connecting said relay in the local circuit and controlled by the main-line relay armature, whereby said auxiliary relay armature is kept in a state of vibration during the continuance of the large-volume current in the main line.

(Specification, 12s.; drawing, 1s.)

No. 21023.—18th April, 1906.—ALFRED GEORGE JACKSON, of Ann Street, Brisbane, Queensland, Australia, Electrical Engineer. A system for electrically releasing any number of drawers in cash-registers, money-tills, and the like.

Claims.—(1.) In a system for electrically releasing the drawers of cash-registers, money-tills, and the like, the initial keys adapted to engage with electrical contacts in combination with line wires carried to electro-magnets in circuit with a battery (or other electrical service) the other pole of which is connected to an electrical contact of the operating key, lever, or crank of the machine, the circuit being completed metallically or by line wire from contact spring to contact springs as described, and illustrated by drawings. (2.) In a system for electrically releasing the drawers of cash-registers, money-tills, and the like, the general arrangement and means for operating same substantially as described and shown in the drawings.

(Specification, 4s.; drawing, 1s.)

No. 21030.—21st April, 1906.—WILLIAM HERCULES TRE-GONING, of Clarence Road, Addington, New Zealand, Blacksmith, and ERNEST JOHN RUDDICK, of 286 Moorhouse Avenue, Christchurch, New Zealand, Boilermaker. Improvements in revolving fireplaces for double chimneys.

Claims.—(1.) In revolving fireplaces for double chimneys, in combination, two fireplaces mounted upon a central vertical spindle by means of carrying arms, the inner ends of which arms are formed with bores that fit around eccentrics formed on the spindle, brackets upon the spindle beneath the arms and upon which the arms rest, and means whereby the spindle may be rotated and may be retained from independent rotation, substantially as specified. (2.) In revolving fireplaces for double chimneys, in combination, a central vertical spindle formed with eccentrics thereon and provided with means whereby it may be rotated, brackets upon the spindle, arms resting upon the brackets extending radially from the spindle, the inner ends of which arms are formed with bores that closely encircle the spindle eccentrics, such arms extending outwards in two pairs diametrically opposite each other, and two fireplaces secured to the outer ends of the respective pairs of arms, substantially as specified. (3.) In revolving fireplaces for double chimneys, the combination with the appliances set forth in claim 2 of a footstep in which the bottom of the spindle rests, provided with inclined faces and vertical stops, and of spring-actuated blocks within the lower of the carrying brackets, which blocks are forced into engagement by their respective springs with the inclined faces of the footstep, substantially as and for the purposes specified. (4.) The improvements in revolving fireplaces for double chimneys, substantially as described and explained, as illustrated in the drawings, and for the several purposes specified.

(Specification, 4s. 3d.; drawing, 1s.)

No. 21051.—28th April, 1906.—JAMES RICHMOND, of Cromwell, Otago, New Zealand, Engineer and Dredgemaster. An improvement relating to gold-saving apparatus.

Extract from Specification.—The present invention provides improved cam gear for vibrating the screen and improved spring arrangement for returning the screen.

[NOTE.—The above extract from the specification is inserted in place of the claims.]

(Specification, 3s. 3d.; drawing, 1s.)

No. 21061.—1st May, 1906.—JOHN SMITH RAWORTH, of 2 Queen Anne’s Gate, Westminster, England, Engineer. Improvements in controllers for electrically propelled vehicles.

Claims.—(1.) A controller for vehicles propelled by electric motors of the kind which when in series are shunt machines and when in parallel are compound machines, and whereby the change of the connections of the motors from motors in series to motors in parallel and vice versa is effected, the change of connections necessary to place the motors in parallel or in series involving a cycle of operations, the cycle of operations for putting the motors in series after being in parallel not being the reverse of that for putting the motors in parallel. (2.) A controller for vehicles propelled by electric motors of the kind which when in series are shunt machines and when in parallel are compound machines, whereby when the motor connections are being changed from series to parallel, and the shunt field is at a maximum, resistance is inserted in the armature circuit. (3.) A controller for vehicles propelled by electric motors of the kind which when in series are shunt machines and when in parallel are compound machines, whereby, in the interval which occurs whilst the connections of the motors are being changed from series to parallel and vice versa, resistance is inserted in the power circuit, the amount of resistance inserted in circuit being greater when going into series than when going into parallel. (4.) In a controller for vehicles propelled by electric motors of the kind referred to and claimed in claim 1, a floating ring or rings so arranged as to hang back for a certain interval when the main barrel is moved in a forward or backward direction and then to be picked up and moved with the main barrel, substantially as described. (5.) A controller for vehicles propelled by electric motors of the kind which when in series are shunt machines and when in parallel are compound machines, provided with means for obtaining the non-reversibility in the cycle of operations that is necessary in changing the connections of the motors from motors in series to motors in parallel and vice versa, said controller and means operating substantially as described with reference to and as shown in the drawings.

(Specification, £1 3s.; drawing, 2s.)

No. 21062.—1st May, 1906.—PHILIP CHARLES LAWLESS, of No. 50 Parliament Hill, Hampstead, London, England, Engineer. Improvements in and relating to internal-combustion engines.

Extracts from Specification.—According to this invention the combustible fluid, mixed with a sufficient quantity of air to most effectively promote ignition, is admitted to a working-chamber, and, separated therefrom, an additional quantity of air is also admitted to the same chamber. After admission, both quantities are compressed to approximately the same pressure, of which one or both quantities may have previously undergone compression, and then the combustible mixture is fired, causing, by its expansion, a further compression of the separated air, followed by a transference of such air into the space containing the burnt or burning combustible mixture and its intimate union therewith, the combined charge being then caused to do work by expansion. . . . One method of obtaining the desired results is by the provision, at the closed end of the cylinder of an internal-combustion engine, of an additional piston which, by the action of a spring or weight or by fluid-pressure, tends to recede from the closed end of the cylinder and approach the working-piston of the engine and alternately to be thrust away by fluid-pressure from the working-piston. This additional piston will in this specification be referred to as the “serving-piston” and be so distinguished from the “working-piston” which is mechanically connected to the engine crank-shaft.

[NOTE.—The above extracts from the specification are inserted in place of the claims.]

(Specification, 11s.; drawing, 1s.)

No. 21075.—3rd May, 1906.—WILLIAM PILGRIM, of East Brunswick, Victoria, Australia, Finisher; ALEXANDER LIDDELL, of Abbotsford, Victoria aforesaid, Clicker and Pattern-cutter; and WILLIAM DIMMICK, of Northcote, Victoria aforesaid, Boot-manufacturer. Improvements in boot-uppers.

Claims.—(1.) In a boot of the class indicated, the blocked upper and inside strap prepared and combined substantially as described. (2.) An upper made as explained with reference to Figs. 1 and 2, sewn to a strap made as explained with reference to Figs. 3 and 4, to make a balmoral boot as in Fig. 5.

(Specification, 2s. 6d.; drawing, 1s.)