1600
THE NEW ZEALAND GAZETTE.
[No. 44

No. 22610.—28th March, 1907.—JOHN JOSEPH FRANCIS MARY SMULDERS, of 9 Eendrachtsweg, Rotterdam, Holland. Improvements in lighters or vessels from which coal and other materials are discharged by means of continuous conveyors.

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Claims.—(1.) A platform with a deep channel or a tunnel within which the conveyor runs, in position over the conveyor, which permits of ready observation by an attendant thereon of any opening through which at the time coal or other material should be passing through a side of the channel or tunnel on to the conveyor. (2.) The use of antifriction rollers which support, against the pressure of the coal or other material stored within the hold, the doors which control the openings through which the coal or other material is discharged on to the conveyor, and guide or assist in guiding the door as it is moved. (3.) The use of antifriction rollers as guides for the side edges of the doors mentioned in claim 2. (4.) The use, with the doors mentioned in claim 2, of racks and pawls, substantially as and for the purpose described. (5.) The means by which the doors mentioned in claim 2 are raised and held in their raised positions, and allowed to drop when required, substantially as described and shown by the drawings.

(Specification, 5s. ; drawing, 2s.)

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No. 22611.—28th March, 1907.—JOHN JOSEPH FRANCIS MARY SMULDERS, of 9 Eendrachtsweg, Rotterdam, Holland. Improvements in and relating to continuous conveyors used in conveying coal and other materials.

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Claims.—(1.) The slanted lower corners of those sides of alternate buckets or trays which pass in between sides of other buckets or trays formed bevelled, for the purpose set forth. (2.) The means of fixing buckets or trays to the chain-links, which consist of set-screws passed through the bottoms of the buckets or trays and screwed down into holes in the links, such holes being continued of a reduced diameter through the remaining depths of the links beyond the depth required for the screws, or continued of full diameter through the links, for the purpose set forth. (3.) The tooth of a tumbler, around which a conveyor-chain passes, formed in a double row around the tumbler, and adapted to pass at opposite sides of the middle links of the chain and bear against the ends of the outer links, for the purpose set forth. (4.) In a tumbler characterized as set forth in claim 3, the surfaces thereof between the teeth of each pair of teeth slanted off from the middle towards each end, for the purpose set forth. (5.) A tumbler around which a conveyor-chain passes, formed with sideway slanting surfaces to facilitate the escape of dust from beneath the links of the pairs of links of the chain, substantially as described. (6.) Scraping-tumblers pivoted to the conveyor-chains and adapted to be dragged along the surfaces of the rails along which the travelling wheels or rollers roll, and to tumble or turn over as the chains are changing their direction of travel at an end of the conveyor, and thus to pass from a lower or higher rail to a higher or lower rail, as the case may be. (7.) A scraping-tumbler constructed and operated substantially as described and shown by the drawings on sheet 3. (8.) A pivoted wing-plate adapted to intercept any lumps which may fall from a portion of the conveyor which is passing in an upward direction towards an elevated pulley, and to allow such lumps to fall back on to the conveyor, and which will yield forwards and allow any lump which may project sufficiently from the conveyor to come against it, as such lump is carried up by the conveyor, to pass clear, the plate thereafter automatically returning to its normal position.

(Specification, 9s. 6d. ; drawing, 4s.)

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No. 22613.—28th March, 1907.—ANDREW CRICHTON and WILLIAM WILLIAMS, of Dunedin, Otago, New Zealand, Engineers. Improved adjustable chair for use in schools and the like.

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Claims.—(1.) A chair consisting of the parts constructed, arranged, combined, and operating substantially as specified and illustrated. (2.) In a chair of the nature indicated, the seat-pillar having the circumferential grooves in combination with a pawl which supports said seat-pillar in such manner that it is free to revolve within the standard, substantially as described and illustrated. (3.) In a chair of the nature indicated, in combination, the pillar, the slotted arm upon the upper end thereof, and the seat adjustable upon said arm, substantially as specified.

(Specification, 1s. 9d. ; drawing, 1s.)

No. 22614.—28th March, 1907.—FRANK COTTON, of Hornsby, New South Wales, Australia, Engineer. An improved means of treating ores containing iron and associated metals, so that the iron may subsequently be removed by magnetic separation.

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Claim.—An improved means for treating ores containing iron and associated metals, so that the iron may be subsequently removed by magnetic separation, consisting of exposing the ore in a chamber to a reducing-flame, said flame being obtained by the ignition of the gases produced by passing dry steam and air through burning carbonaceous material.

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

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No. 22623.—2nd April, 1907.—FREDRIK ADOLF KJELLIN, of 56 Sturegatan, Stockholm, Sweden, Engineer. An improved method and furnace for reducing metals or metalloids from their combinations.

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Claims.—(1.) A method of reducing metals or metalloids from their combinations by introducing the reducing-agent and the substance to be reduced in separate compartments of a furnace, divided in several such communicating compartments in such a manner that the said agent and the said substance will come in contact only thereby that the reducing-agent in one compartment dissolves itself in the molten bath of the reduced substance in that compartment, and in such a dissolved form reduces the metal or the metalloid from its combination in another compartment of the furnace. (2.) A furnace for reducing metals or metalloids from their combinations consisting of a receptacle divided in several compartments by one or several partitions dipping below the molten composition which is to be reduced, and which is floating upon the molten bath of the substance already reduced, for the purpose of preventing the direct contact of the substances fed to the different compartments, and intended to act upon one another.

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

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No. 22624.—2nd April, 1907.—JOHN HENRY WARREN, of 217 Bridport Street, Albert Park, Victoria, Australia, Engine-driver; THOMAS BLADES, of 25 Gordon Street, West Footscray, Victoria aforesaid, Grocer; and JOHN WREN, of Studley House, Studley Park Road, Kew, Victoria aforesaid, Gentleman. Improvements in and relating to railway signalling.

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Extract from Specification.—This invention has been devised with the object of enabling the travel of a locomotive when approaching signals to be controlled by the signalman, whereby the signals when at “Danger” automatically close the throttle-valve in the locomotive and apply the brake, whilst at the same time a whistle is blown, and miniature signals in the cab of the locomotive are moved automatically to correspond with those on the road: thus locomotives are automatically prevented from over-running a danger-signal. The advantages of this arrangement are manifold—as, for instance, it is not necessary that the driver should watch for the road-signals at all until the locomotive is stopped by same, which is important when travelling at night-time or in foggy weather, as there is no danger of mistaking signals, for the reason that the signalman not only controls the road, but also the advance of the locomotive, hence the driver has more time to devote to the working of the latter. The mechanism of the apparatus is principally contained on the locomotive, and the operating-power employed is preferably compressed air, but may be steam; whilst the rest of the mechanism, which consists mainly of tripping-contacts, is fixed to the road, and is connected directly with the road-signals by means of the wires thereof. The mechanism is so constructed and arranged that should a breakage occur in any of the air-pressure supply-pipes, or the triggers which engage the tripping-contacts become bent or broken, the driver will be at once apprised by the sudden reduction of the air-pressure in train-brake pipe, thus applying the brakes to the whole train, and also by the movement of the miniature signal-arms in the cab to “Danger.”

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

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