May 26.] THE NEW ZEALAND GAZETTE. 1429

said structure, as described and shown, and for the purposes set forth. (2.) In apparatus of the kind described, the combination, with the upwardly projecting stem of a tee-piece having long and short arms, of a retention-valve adapted to retard the backward flow of the quenching-fluid when applied from remotely situated primary coupling-parts, as described and shown, and for the purposes set forth. (3.) In primary coupling-parts attached to a structure, but detached from the source of supply, the combination, with the said coupling-parts, of a wall-box having a chambered portion therein for a tell-tale self-registering indicator, as described, and for the purposes set forth. (4.) In combination, the primary coupling-parts, the retention-valve, the wall-box, the conduits or pipes connected with the said retention-valve, and the tell-tale self-registering indicator communicating with the said wall-box, as described, and for the purposes set forth. (5.) In primary coupling-parts enclosed in a wall-box, having a chamber adapted to receive a tell-tale self-registering indicator, the arrangement of such coupling-parts in groups or nests, and communicating with each other from remote parts of the structure to which they are attached, as described, and for the purposes set forth.
(Specification, 5s.; drawings, 3s.)

No. 17815.—21st April, 1904.—FREDERICK RIDLEY DENNISON, of Oamaru, Otago, New Zealand, Mechanic. A machine for separating wild oats or other hairy seeds from good oats or other grain or seed.

Extract from Specification.—The means adopted comprise a trough that is placed at an incline, and longitudinally within which is mounted an endless travelling band of a suitable fabric that extends across the width of the trough. Means are provided whereby this band may be caused to travel with its supporting rollers, the outer or top portion travelling in the upward direction. Deflector-plates are arranged across the trough and extend vertically down to the level of the top portion of the travelling band. These plates are arranged at intervals throughout the length of the trough, and are made adjustable with regard to the travelling band. Scrapers are mounted on the bottom of the trough, and engage with the face of the inner or bottom portion of the travelling band.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 3s. 9d.; drawing, 1s.)

No. 17836.—27th April, 1904.—JOHN HOWARD, of Help Street, Chatswood, near Sydney, New South Wales, Australia, Machine-shears Expert. Improvements in Wolseley machine shears, parts of which are applicable to other sheep-shearing machines.

Claims.—(1.) In machine shears of the class set forth, the combination, with the under-casing containing the driving-fork and having a straight-fitting edge, of a roached, or curved, or rounded cover having also a straight-fitting edge, as and for the purposes set forth, substantially as described and explained. (2.) In machine shears of the class set forth, the combination, with the adjusting housing for the mushroom stud or tension-pin, of a grip-nut with lever, as and for the purposes set forth, substantially as described and explained. (3.) In machine shears of the class set forth, the combination, with the driving-fork fulcrum-stud and the front main bearing, of an orifice in said bearing-casing and a series of centres or countersinks around the body of said bearing, as and for the purposes set forth, substantially as described and explained. (4.) In sheep-shearing machines, the combination, with the lugs or jaws of the knuckle-joint between the machine and the driving-shaft at either side, of a centre-pin screwed through the outer lug or jaw, and having an outer jamb-nut and a centring block in the inner lug or jaw, as and for the purposes set forth, substantially as described and explained.
(Specification, 5s.; drawing, 1s.)

No. 17842.—27th April, 1904.—GUSTAF GRÖNDAL, of Djursholm, Sweden, Engineer. An improved furnace for burning cement or for other purposes.

Claim.—A furnace for burning cement or reducing or calcining ores, comprising a hollow rotating cylinder or drum slightly inclined to the horizon, a furnace located above the upper end of the cylinder, a shaft located under the lower end of the cylinder, a device for making a gaseous mixture at the lower end of the cylinder, and a feeding-device under the said furnace conveying material therefrom to the cylinder, the construction of the said furnace and shaft being such that air or gas may pass from the lower part to the upper part thereof in horizontal passages leading to and fro there-through, substantially as and for the purpose set forth.
(Specification, 4s.; drawing, 1s.)

No. 17843.—27th April, 1904.—ERIK AUGUST FORSBERG and BIRGER LJUNGSTRÖM, both of Fleminggatan 8, Stockholm, Sweden, Engineers. Improvement in link-blade liners for centrifugal-separator bowls.

Claims.—(1.) In link-blade liners for centrifugal-separator bowls, a plurality of blades mounted upon a common rod or link at different levels, substantially as and for the purposes set forth. (2.) In link-blade liners for centrifugal-separator bowls, a pair of blades mounted upon a common rod or link connecting the upper and lower rings of the liner, one of said blades having lugs bent round said rod or link above and below such rings, with a longitudinal rebate between, and the other blade having a comparatively large lug bent round said rod or link between the rings and rebated above and below same, substantially as set forth.
(Specification, 2s.; drawing, 1s.)

No. 17844.—27th April, 1904.—WILLIAM ERNEST HUGHES, of Queen’s Chambers, Wellington, New Zealand, Patent Agent (nominee of Maurice Leblanc, of Villa Montmorency, Auteuil, Paris, France, Engineer). Improvements in cooling-apparatus.

Claims.—(1.) A water-cooling apparatus in which a continuous circulation of water is maintained through a vacuum evaporating-tank without destroying the vacuum, substantially as described. (2.) A water-cooling apparatus arranged and operating substantially as described with reference to the drawings.
(Specification, 9s.; drawing, 1s.)

No. 17850.—26th April, 1904.—THOMAS HARKINS, of Ponsonby Road, Auckland, New Zealand, Tinsmith and Ironmonger. An improved method of fixing tops and bottoms on tins for holding any material.

Claim.—The turning the top edge of the body inwards with a hook formation, making the edge of the top or bottom with a right-angled formation, placing the right-angled formation of the top or bottom within the hook formation of the top edge of the body of the tin, and clamping and pressing the one to the other tightly for the purpose set forth, substantially as described and illustrated.
(Specification, 2s.; drawing, 1s.)

No. 17851.—26th April, 1904.—HENRY CARTER, of Auckland, New Zealand, Kauri-gum Sorter, and JOHN JAMES EVANS, of Mititai, Northern Wairoa, Auckland, New Zealand, Storekeeper. A machine for cleaning kauri and other gum.

Extract from Specification.—The invention consists of a revolving cylindrical-shaped basket inwardly lined with network carrying a multiplicity of bent steel wires somewhat in shape of hair-pins, and the same also on the centre of the shaft, the cylinder being under a cover standing in a tray to catch the dust and smaller particles thrown off from the gum within the cylinder as the same is caused to rotate by hand or such other form of power as may be used.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 4s. 6d.; drawing, 1s.)

No. 17853.—29th April, 1904.—DUNCAN McMURRICH, of Ohio Road, Wellington, New Zealand, Superintendent Engineer, Union Steamship Company. Improvements in firebars.

Claims.—(1.) For the purpose indicated, firebars having bosses near their ends with holes therethrough and rods passed into the said holes to unite a plurality of bars into sections, substantially as set forth. (2.) The combination and arrangement of parts comprising the improvements in firebars, substantially as and for the purposes set forth.
(Specification, 1s. 3d.; drawing, 1s.)

No. 17858.—25th April, 1904.—ALFRED JOHN EGGLETON, of St. Clair, Dunedin, New Zealand, Tramway-manager. Improved plant or flower pots.

Claims.—(1.) In pots or boxes for growing plants, the combination of either single boxes or boxes having more than one