2020

No. 12085. — 9th October, 1899. — HENRY ROBERTS, of Haslett Street, Eden Terrace, Auckland, New Zealand, Carpenter and Builder. An improvement to window-sashes and lights by means of the sash-cords and suspenders being attachable to or detachable therefrom.

Claim. — An improvement to window-sashes and lights by means of sash-cords or suspenders having a hook at their extremities, and an eye or plate in the sash-frame to receive same, and being attachable to or detachable therefrom; so as to enable the sashes or lights to be entirely removed from their frames or suspended by sash-cords and suspenders, and easily adjustable for the purposes of glazing, painting, cleaning, or other like purposes, as substantially set forth in drawings and specification.

(Specification, 2s. 9d.; drawings, 3s.)

No. 12086.—10th October, 1899.—JAMES MACTEAR, of 28, Victoria Street, Westminster, London, England, Chemical Engineer. Improvements in the obtainment of cyanogen compounds.

Claims. — (1.) The production of ammonium-cyanide by the decomposition of a gaseous mixture of carbonic oxide and ammonia alone, or with nitrogen, or nitrogen and hydrogen, in an electric furnace or decomposing-chamber, so arranged as to be heated internally and equably throughout by an electrical resistance, which will be surrounded by the gaseous mixture under treatment, as set forth. (2.) The production of ammonium-cyanide by the decomposition of a gaseous mixture of carbonic oxide and ammonia alone, or with nitrogen, or nitrogen and hydrogen, in an electric furnace or decomposing-chamber so arranged as to be heated internally and equably throughout by an electrical resistance, and also externally by like means or by gaseous fuel, so that such gaseous mixture will both surround and will be surrounded by the source of heat by which its decomposition is effected, as set forth. (3.) The production of alkaline cyanides and cyanogen compounds by the production of ammonium-cyanide by the process and means referred to in the preceding respective claims, the conversion of the ammonium-cyanide so obtained into the desired alkaline cyanide, or cyanide mixture, or cyanogen compound, by the action of appropriate alkaline hydrates, or means of obtaining the required products in solution in water or alcohol, with liberation from the ammonium-cyanide of the ammonia, and the evaporation of the solution of the cyanide, or cyanide mixture, or cyanogen compound so obtained, as set forth. (4.) A decomposing-chamber adapted for producing ammonium-cyanide from a mixture of gaseous ammonia and gaseous carbonic oxide alone, or with nitrogen, or nitrogen and hydrogen, and characterized by being made of an oblong shape, with open ends and perforated flanged extensions, fitted with perforated end-covers cemented and metal-bound thereto, and serving to lead the mixed gases from a branched main to the chamber-interior, and the resultant products from the chamber to a branched outlet-main, and by being fitted internally with a perforated support to a filling of a suitable catalytic substance, and with a series of refractory tubes, equi-spaced as regards each other, and also as regards the chamber-sides, and containing electric coils or resistances adapted to heat the chamber equably throughout from the inside, as set forth.

(Specification, 5s. 6d.; drawings, 8s.)

No. 12087. — 14th October, 1899. — EDWARD WILLIAM PARISH, of 281, Strand, London, England, Commercial Traveller. Improvements in low-pressure steam apparatus for cooking, heating, drying, evaporating, steam-generating, and similar purposes.

Claims. — (1.) Apparatus comprising a part for cooking, heating, or similar purpose, and a part for maintaining a constant supply of hot water without materially interfering with the cooking or other operation, substantially as described. (2.) The hot-water-supply portion of the apparatus, formed with two compartments or chambers, one of which is closed at its upper end, and both of which communicate near their lower ends, the closed compartment or chamber being connected with the steam-and-water space of the cooking or heating portion of the apparatus, substantially as and for the purpose described. (3.) Apparatus having its parts constructed and arranged substantially as described with reference to the drawings, for the purpose specified.

(Specification, 5s. 6d.; drawings, 11s.)

No. 12088. — 14th October, 1899. — DAVID GILMOUR, of Dundas Street, Trenton, Ontario, Canada, Lumber-manufacturer. Improvements in the manufacture of lumber.

Claims. — (1.) The described process of forming lumber, in combining two parts tongued and grooved to fit each other, consisting in first forming the tongues and grooves, then applying glue or cement, then placing the two parts together, then finally subjecting them to heat and pressure by passing them between rolls, the heat and pressure being sufficient to expel the moisture, condense and compress and season the lumber, and finish the surface, substantially as described. (2.) The described process of forming lumber, in combining two parts together, consisting in first applying the glue or cement, then placing the two parts together, and finally subjecting them to heat and pressure by passing them between rolls, the heat and pressure being sufficient to expel the moisture, condense and compress and season the lumber, and finish the surface, substantially as described. (3.) The described process of forming lumber, in combining two parts together, consisting in first applying the glue or cement, then placing the two parts together, and finally subjecting them to pressure by passing them between rolls, the pressure being sufficient to expel the moisture and weld the parts together, compress, condense, season the lumber, and finish the surface, as specified. (4.) The described process of forming lumber, in combining two parts, tongued and grooved to fit each other, consisting in first forming the tongue and groove, then applying the glue or cement, then placing the two parts together, then finally subjecting them to pressure by passing them between rolls, the pressure being sufficient to expel the moisture, weld the parts together, compress, condense, and season the lumber, and finish the surface, as specified. (5.) The described process of forming lumber, in combining two parts together, consisting in first placing the two parts together, and finally subjecting them to pressure by passing them between rolls, with the superimposed surface parallel to the face of the rolls, the pressure being sufficient to expel the moisture, weld and interlock the fibres of the parts together, condense, compress, and season the lumber, and finish the surface, as specified.

(Specification, 4s. 9d.; drawings, 3s.)

No. 12089. — 16th October, 1899. — DAVID BUCHANAN, of 9, Clive Road, Auburn, Victoria, Mechanical Engineer. Improvements in potato-diggers.

Claims. — (1.) In a potato-digger, the combination with the frame thereof of a pair of adjustable revoluble rollers, each having a tapered front, and a fork under said rollers, all substantially as and for the purposes set forth. (2.) In a potato-digger, the combination with the frame thereof of a pair of rollers 2 (each having a tapered front) attached to a frame 3, and pivoted or hinged at the rear 4 to one of a series of holes 11, a carrier 5, and a chain or connection 6 to a windlass as W or the like, all substantially as and for the purposes set forth. (3.) In a potato-digger, the combination with the frame thereof of a pair of adjustable revoluble rollers, each having a tapered front, means (as a flexible shaft) for causing revolution of one of said rollers as the machine advances, a fork beneath and an adjustable guard above the said rollers, and a vertical sheet-metal guard at the rear of the rollers, all substantially as and for the purposes set forth.

(Specification, 4s. 3d.; drawings, 8s.)

No. 12092. — 16th October, 1899. — WILLIAM EDWARD SHAW, of “Penlee,” Prospect Road, Summer Hill, near Sydney, New South Wales, Merchant. An improved lid or cover for cylindrical metal vessels closed by a tagger tin-plate top.

Claims. — An improved lid or cover for cylindrical metal vessels closed by a tagger top, and having a circular cut within a circular depression in one part of it, out of which a triangular cutter is stamped, substantially as and for the purposes described and explained, and as illustrated in the drawings.

(Specification, 1s. 6d.; drawings, 3s.)

No. 12099. — 14th October, 1899. — WILLIAM LING PAGE, of Maclaggan Street, Dunedin, New Zealand, Carpenter, and GEORGE PROUDFOOT MOLLISON, of Great King Street, Dunedin aforesaid, Carpenter. An improved coffer-dam dredge, for enabling the wash and bottom to be seen, especially adapted for gold-mining.