JUNE 21.] THE NEW ZEALAND GAZETTE. 1219

liquid, digesting the pulverised ore in suspension with the mixed chloride solution and a free acid—e.g., hydrochloric acid—to release the chlorine and effect solution of the gold and silver (and copper, if present), precipitating said metals from the separated solution by addition of suitable reagent, and, upon removal of such resultant precipitates, electrolytically treating the properly neutralised solution so as to directly convert into oxychloride the alkali-metal chloride present in said solution, and thus regenerate it for re-use, substantially as described. (3.) The method of extracting precious metal from ores which consists in suitably electrolysing an alkali-metal chloride solution—e.g., sodium-chloride—to form in part oxychloride, leaving sodium-chloride in excess in the resultant leach-liquid, digesting the pulverised ore in suspension with the mixed chloride solution and a free acid—e.g., hydrochloric acid—to release the chlorine and effect solution of the gold, silver, and copper (if present), properly precipitating said metals, and after their removal evaporating the remaining solution for recovery of the alkali-metal chloride by fractional crystallization, dissolving the recovered chloride-crystals, and thereupon treating the same electrolytically to regenerate the chloride to the state of oxychloride in readiness for re-use, substantially as described. (4.) The method of extracting precious metal from ores which consists in suitably electrolysing an alkali-metal chloride solution—e.g., sodium-chloride—to form in part oxychloride, leaving sodium-chloride in excess in the resultant leach-liquid, digesting the pulverised ore in suspension with the mixed chloride solution and a free acid—e.g., hydrochloric acid—to release the chlorine and effect solution of the gold, silver, and copper (if present), properly precipitating said metals, and after their removal evaporating the remaining mixed chloride solution, separately recovering, by fractional crystallization, the alkali-metal chloride present, digesting by means of a suitable reagent (with aid of free steam if necessary), the concentrated mixed chlorides left over as a residue from such fractional crystallization, condensing the vapours of hydrochloric acid thence evolved, separately dissolving the recovered crystals of alkali-metal chloride, and thereupon treating such solution electrolytically to regenerate the same into state of oxychloride for re-use, substantially as described.
(Specification, 10s. 6d.)

No. 12687.—16th June, 1900.—ARTHUR LEWIS CUMMINGS, of Hepburn Street, Auckland, New Zealand, Carpenter. An improved caster for furniture.

Claim.—A caster having a socket or receptacle to receive the weight to be supported, constructed with a spheroidal or oblate cup of an egg-shape to receive balls or friction rollers at its smaller end, and to operate in conjunction with a sphere or ball runner, the balls or friction-rollers being of a sufficient size to allow the runner free action with the least amount of friction, and the whole combination to form a caster as applied to furniture and other like requirements, as substantially set forth in specification and drawings.
(Specification, 2s. 3d.; drawings, 3s.)

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, 20th June, 1900.

APPLICATIONS for Letters Patent, with provisional specifications, have been accepted as under:—
No. 12659.—30th May, 1900.—ROBERT ALEXANDER McLEOD, of Kaihu, Auckland, New Zealand, Contractor. An improved hauling-, lifting-, and lowering-winch.
No. 12662.—31st May, 1900.—JAMES EAST, of Gisborne, New Zealand, Storekeeper. An improved scutching-bar for use in scutching the fibre of Phormium tenax and other fibrous material.
No. 12663.—6th June, 1900.—ROBERT LOUIS HOWELL MURRAY, of Auckland, New Zealand, Electrician. An improved method of increasing the illuminating-power of gas.
No. 12664.—6th June, 1900.—JOHN EDWARD FRIEND, of Wellington, New Zealand, Engineer, and JOHN SAVERS, of Queen’s Chambers, Wellington aforesaid, Dairy Expert. Improvements in propelling-mechanism for cycles and other machines.

No. 12666.—1st June, 1900.—DAVID CAITHNESS, of Mataura, New Zealand, Winchman. Apparatus for breaking up stiff matter such as clay, and removing it from the shoots of dredges.
No. 12669.—6th June, 1900.—HENRY MONLEAN DE MONTEMAS, Civil Engineer, and MARTIN FRANCKEL, Accountant, both of Sydney, New South Wales. An improved crematory for the destruction of garbage and other noxious refuse.
No. 12670.—9th June, 1900.—WILLIAM JOSEPH CHARLES STOKES, of Lonsdale Street, New Brighton, Canterbury, New Zealand, Pyrotechnist. Improved method of rocket signalling applicable to the International Flag Code, either by day or night.
No. 12671.—11th June, 1900.—GEORGE ARTHUR PEARSON, of Lower Hutt, Wellington New Zealand, Engineer. A combination safety draw-pin and catch for railway and other vehicles.
No. 12672.—11th June, 1900.—LOUIS HOLDEN, of Feilding, New Zealand, Farmer. Improvements in and relating to feeding-troughs for animals.
No. 12673.—12th June, 1900.—AUGUSTINE JOHN MADDEN, of 187, Collins Street, Melbourne, Victoria, Metal-worker. Improved automatically-cleansing filter.
No. 12675.—12th June, 1900.—WILLIAM McKEEGAN, of Waterloo Quay, Wellington, New Zealand, Engineer. An improved dredge.
No. 12676.—12th June, 1900.—CHARLES BILDERBECK MEAD BRANSON, of Dunedin, New Zealand, Hotelkeeper. An improved saddle-cover.
No. 12677.—8th June, 1900.—EDWARD ERSKINE COLLINS, of Southland Freezing-works, Mataura, New Zealand, Engineer. Apparatus for clearing sluice-boxes.
No. 12678.—8th June, 1900.—JOHN BENSON CARTSBURN WATT, of Mataura, New Zealand, Blacksmith. Apparatus for breaking up and separating matter from the gold in dredging, sluicing, and suchlike.
No. 12681.—14th June, 1900.—WILLIAM HOLMES, of New Zealand Times Office, Wellington, New Zealand, Engineer. A new or improved justification-gauge for tabulated and half-stick work on linotype and other type-setting machines.
No. 12682.—11th June, 1900.—EDWARD ROGERS ATKIN, of Auckland, New Zealand, Coachbuilder. An improved switchback method for placing and displacing hind seats of buggies, waggons, and other vehicles.
No. 12684.—12th June, 1900.—DAVID WILSON, of Mataura, New Zealand, Engineer. Apparatus for keeping weeds, &c. clear of the suction-pipes of dredges or other machinery.
No. 12686.—12th June, 1900.—WILLIAM ALFRED HOLMAN, of 215, Victoria Arcade, Queen Street, Auckland, New Zealand, Architect. A spouting-strap.
No. 12688.—14th June, 1900.—THOMAS PLUMMER CLARKE, of Waihi Gold-mining Company (Limited), Waihi, Auckland, New Zealand, Engineer. An improvement in the dies and mortar-boxes used for crushing ore, stone, or other hard substances.

F. WALDEGRAVE,
Registrar.

NOTE.—Provisional specifications cannot be inspected, or their contents made known by this office in any way, until the complete specifications in connection therewith have been accepted.

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

Letters Patent sealed.

LIST of Letters Patent sealed from the 7th June, 1900, to the 20th June, 1900, inclusive:—
No. 11228.—G. Renner and W. H. Boyens, brand.
No. 11400.—H. A. Scott, apparatus for sinking post-holes.
No. 11409.—W. Cutten, suction elevator.
No. 11429.—C. E. Page, step-ladder and shelf combined.
No. 11829.—J. P. Campbell, electrical measuring-instrument (H. P. Davis and F. Conrad).
No. 11897.—J. P. Campbell, circuit-breaker (H. P. Davis and G. Wright).
No. 11919.—J. P. Campbell, electrical distribution (R. D. Mershon).
No. 11947.—J. P. Campbell, fuse-block for electric circuit (H. P. Davis).
No. 11948.—J. P. Campbell, electric switch (G. Wright and C. Aalborg).
No. 12014.—A. Denaeyer, cocoa-and-milk product.
No. 12029.—J. P. Campbell, electrical machine (B. G. Lamme and J. P. Mallett).
No. 12030.—J. P. Campbell, induction motor (B. G. Lamme).
No. 12090.—D. Dooling, hand-grubber.
No. 12173.—M. J. Davidsen, ore-pulveriser.
No. 12304.—W. Schmidt, superheating steam.
No. 12305.—W. Schmidt, steam-regulator.