Mar. 29.] THE NEW ZEALAND GAZETTE. 669

the charge- or fare-indicating discs, and being so situated as to keep the actuating pawl for the other disc out of engagement with its ratchet-wheel until the notch comes round, substantially as described. (2.) In a fare-indicating device of the class specified, the combination of a double pawl, having both its pawl-members rigidly connected, one of said members serving to operate the indicating-mechanism and the other the registering-works, substantially as described. (3.) In a fare-indicating device of the class specified, the combination of two concentrically arranged fare-indicating discs having those parts of their surfaces which contain the figures in one and the same plane, substantially as described. (4.) In a fare-indicating device having a number of variable taxes and means for securing the tax-indicating spindle in one or other of its positions to indicate the tax, said tax-adjustment being effected by means of change-gears, the combination of means for securing the spindle in one position, in which none of the gears are in engagement. (5.) In the device covered by claim 4, the arrangement of two sets of cog-wheels mounted on parallel spindles, one set of which is axially movable along its key so as to allow each member of the set to be brought into engagement with the corresponding member of the other set, substantially as described. (6.) In combination with the mechanism covered by claims 4 and 5, the arrangement of an elastic lever for shifting the movable gears along their shaft, substantially as described. (7.) In the device covered by claim 4, the combination of means for blocking the axially movable gears in their disengaged position, either from the tax-adjusting spindle or by means of suitable separate arresting-device, substantially as described. (8.) In a fare-indicating device, the combination of a circular disc fast on the tax-adjusting spindle, said disc having ratchet teeth along a part of its circumference which co-operate with a pawl so as to prevent the spindle from being turned back at certain points of its revolution, substantially as described.
(Specification, 9s. 6d.; drawings, £1 1s.)

No. 12465.—16th March, 1900.—DAVID NABLE, of 80, Castlereagh Street, Redfern, New South Wales, Tailor. An improved apparatus for cleaning the rails of tramways.

Claims.—(1.) In an apparatus for cleaning the rails of tramways, a brush having a raised rib fitting into the flange-groove, of the nature and for the purpose set forth. (2.) In an apparatus for cleaning the rails of tramways, the combination and arrangement of a scoop such a A with a brush such as described, for the purpose set forth. (3.) In an apparatus for cleaning the rails of tramways, the combination and arrangement of a brush such as described, with or without a raised rib, a scoop such as A, and a rear wheel such as H, substantially as described and as illustrated.
(Specification, 3s. 6d.; drawings, 3s.)

No. 12466.—16th March, 1900.—AUSTIN DOUGLAS GRAHAM, of Queen Street, Brisbane, Queensland, Solicitor (assignee of James Charles Barnes, of 78, Queen Street, Brisbane aforesaid). An improved appliance for sharpening the combs and cutters of machine sheep-shears, horse-clippers, and the like.

Claims.—(1.) In an improved appliance for sharpening the combs and cutters of machine sheep-shears, horse-clippers, and the like, the combination of the parts forming my parallel motion, consisting of bars such as C and C', and links such as D and D', as described, and illustrated by drawings. (2.) The several modifications, or their equivalents, of the foundation-plate such as A, slide such as B, and pin such as E, in combination with the above-claimed motion, forming my improved appliance for sharpening the combs and cutters of machine sheep-shears, horse-clippers, and the like, as described, and illustrated by drawings.
(Specification, 2s. 9d.; drawings, 8s.)

No. 12468.—19th March, 1900.—HENRY ALONZO BUCK, of 11, Montague Street, Russell Square, London, England, Engineer. An improved rotary engine.

Claims.—(1.) A rotary engine consisting of an outer case provided with an annular channel or cylinder in which travels a piston under steam or other pressure, the admission of which to the said cylinder is governed by valves actuated by projections formed upon a collar or the like attached to the piston spindle or shaft, all acting and constructed substantially as described, and illustrated by the drawings. (2.) In a rotary engine of the kind above specified, the combination of a piston 10, having its ends wedge-shaped, as shown by the drawings, with the traps or doors 12 and 13, adapted and operated by levers 45 and 46, so as to allow of the same beginning to close the bore of the cylinder as soon as the body of the piston has passed beyond said doors, thereby decreasing the amount of clearance behind the piston, substantially as described, and illustrated by the drawings. (3.) In a rotary engine of the class specified, a means for readily reversing the direction of motion of the same, consisting of a plate 55b, capable of being rocked to either right or left hand, acting in conjunction with the steam cock or valve so as to throw into action an admission valve and trap to cause steam to be admitted to the cylinder upon the opposite side of the piston, at the same time withdrawing the opposite trap and shutting off the steam-supply upon that side, substantially as described, and illustrated by the drawings. (4.) In a rotary engine, the combination of a cylinder 1, piston 10, with admission-valves 16, 17, with levers 23 and 24, doors 12 and 13, and their actuating-levers 45 and 46, with the collar 32 upon the shaft 8, and projections 33, 34, and 35 thereon, all acting and operated substantially as described, and illustrated by the drawings. (5.) The improved rotary engine substantially as described, and illustrated by the drawings.
(Specification, 7s.; drawings, £1 11s.)

No. 12475.—16th March, 1900.—FRANCIS BROWNE, Dredgemaster, and JOHN MAXWELL, Engineer, both of Mataura, New Zealand. Improvement to be used in screens for gold-dredging.

Claim.—In screens for gold-dredging, the combination of the screen with frames standing out in the inner or working-surface of the screen, and secured to same at any angles, the said frames each carrying a number of spikes such as B, B¹, and B², B¹ for the purpose of breaking up lumps, and thus saving gold, all substantially as described and explained, and as illustrated in the drawing.
(Specification, 1s. 3d.; drawings, 3s.)

No. 12476.—19th March, 1900.—LÉON LUCIEN CARPENTIER, of 108, Rue Dareau, Paris, France, Manufacturer. An improved process and apparatus for the preservation of alimentary products or substances.

Claims.—(1.) The described process for the preservation of alimentary products or substances of the kinds specified, and either in a fresh condition or after having been cooked sufficiently for consumption, which consists in subjecting the products to be preserved to the action of a vacuum for the purpose of extracting the air, and then replacing the air by carbonic-acid gas. (2.) The means and apparatus for use in carrying out this improved process substantially as described with reference to the drawing.
(Specification, 5s.; drawings, 8s.)

F. WALDEGRAVE,
Registrar.

An asterisk (*) denotes the complete specification of an invention for which a provisional specification has been already lodged.

NOTE.—The cost of transcribing the specification, and an estimate of the amount required for copying the drawings, have been inserted after the notice of each application. An order for a copy or copies should be accompanied by a post-office order or postal note for the cost of copying.

The date of acceptance of each application is given after the number.

Provisional Specifications.

Patent Office,
Wellington, 28th March, 1900.

APPLICATIONS for Letters Patent, with provisional specifications, have been accepted as under:—
No. 12428.—2nd March, 1900.—EDWARD ACTON GIBBON, of Grove Road, Blenheim, New Zealand, Veterinary Surgeon. An invention for hacking tow from the flaxmill by extracting the fibre from the refuse tow.

No. 12437.—28th February, 1900.—WILLIAM HEALEY, of Timaru, New Zealand, Plumber and Sanitary Engineer. A combined sanitary slop-bucket and night commode.

No. 12438.—28th February, 1900.—WILLIAM HEALEY, of Timaru, New Zealand, Plumber and Sanitary Engineer. An improved sanitary cesspan.

No. 12454.—9th March, 1900.—GEORGE CLAYDON, of Rakaia, Canterbury, New Zealand, Engineer. An improved whippletree.

No. 12455.—9th March, 1900.—GEORGE CLAYDON, of Rakaia, Canterbury, New Zealand, Engineer. An improved tea-infusing appliance for teapots.

No. 12457.—14th March, 1900.—GEORGE DIXON, of Cole Street, Masterton, New Zealand, Blacksmith. An improved gripper for wire-strainers.

No. 12458.—14th March, 1900.—WILLIAM FAIRHEAD, of Broad Street, Palmerston North, New Zealand, Joiner.