May 29.] THE NEW ZEALAND GAZETTE. 1193

No. 14862.—9th May, 1902.—ANDREW CHARLES JOSEPH CHARLIER, of 108A, West Regent Street, Glasgow, Scotland, Chemist. Improvements in the manufacture of lead pigments and lead or other metallic compounds, and in apparatus therefor, also suitable for aerating or saturating liquids with gases.

Claims.—(1.) Means for the production of white-lead from oxide of lead or litharge, said means comprising in combination therewith a vessel or vat mounted on trunnions and capable of rotation, oscillation, or reciprocation, carbon-dioxide gas under pressure admitted to said cylinder, and acidified water in contact with the litharge and acting as a carrier for the gas, substantially as described. (2.) Means for the production of chemical compounds in the manufacture of which oxygen, nitrogen, or ammonia gas constitutes a part of the reaction, said means comprising, in combination with the metals or their oxides, a vessel or vat mounted on trunnions and capable of rotation, oscillation, or reciprocation, suitable gas under pressure admitted to said cylinder, and acidified water in contact with the metal or metallic oxide, and acting as a carrier for the gas, substantially as described. (3.) For use in the manufacture of chemical compounds in the manufacture of which gas under pressure constitutes a part of the reaction, a vessel or vat provided with an inlet and outlet orifice, said vessel being capable of rotation, oscillation, or reciprocation, in order to spray or break up the fluid acting as a carrier to the gas and thereby hasten the chemical reaction, substantially as described.
(Specification, 4s. 3d.; drawings, 1s.)

No. 14864.—9th May, 1902.—ALFRED GEORGE FLOYED, of Gladstone, Tasmania, Mechanic. Improvements in apparatus for playing games adapted to cultivate the observation and memory.

Claims.—(1.) In an apparatus of the class indicated, the combination with a casing having central pits, of surrounding cells, inclined passages or openings for the movement of marbles or the like from cell to pit or the reverse, and means as set forth for exhibiting the pit-contents, substantially as described. (2.) In an apparatus of the class indicated, the combination with a casing having central pits, of surrounding cells, inclined passages or openings for the movement of marbles or the like from cell to pit or the reverse, a pit centre-piece as set forth, partitions as h located near the cell ends of the passages, and a lid for exhibiting the pit-contents, substantially as described. (3.) In an apparatus of the class indicated, the combination with a casing having a central aperture, of an opaque lid movable for the exhibiting of marbles through said aperture, dividing walls as c forming parts of a pit or pits, and a removable or adjustable pit centre-piece, substantially as described. (4.) In an apparatus of the class indicated, the combination with a casing having a central aperture, of a lid and one or more central pits, inclined passages, partitions, and surrounding cells as set forth, together with numbered score-holes in the casing-top, substantially as described.
(Specification, 5s.; drawings, 1s.)

No. 14865.—9th May, 1902.—GEORGE PORTER PIERCE, of 28, Adderley Street, West Melbourne, Victoria, Carpenter. Improvements in calculating-apparatus.

Claims.—(1.) In calculating-apparatus, the combination with a casing of parts as d to l, with or without parts m, arranged substantially as and for the purposes set forth. (2.) In calculating-apparatus, the combination with a casing of parts as d to h and n to p, arranged substantially as and for the purposes set forth. (3.) In calculating-apparatus, the combination with a casing of a dial or dials having slits and a stop or stops therefor, arranged substantially as and for the purposes set forth. (4.) In calculating-apparatus, the combination with a casing of a dial or dials having slits, a stop or stops, and parts as n to p, arranged substantially as and for the purposes set forth. (5.) In calculating-apparatus, the combination with a casing of one or more adjustable dials and dial-wheels, compartments for storage thereof, partitions having recesses each with an indicating-hand and scaled disc, and adjustable actuating pointers, all arranged substantially as and for the purposes set forth.
(Specification, 6s.; drawings, 1s.)

No. 14868.—7th May, 1902.—THE SMETHURST FURNACE AND ORE-TREATMENT SYNDICATE, LIMITED, of 3, Great Winchester Street, London, E.C., England, Manufacturers (assignees of William Smethurst, of Brynmair, Dolgelly, North Wales, Engineer). Improvements in the treatment of substances with nascent carbon-dioxide to produce a chemical reaction.

Claims.—(1.) A process for the treatment of substances with nascent carbon-dioxide, consisting in producing the carbon-dioxide in a nascent condition by combustion under water in the presence of the substance to be acted upon in solution or suspension in the surrounding water. (2.) In a process for the treatment of substances with nascent carbon-dioxide, mixing a carbonaceous combustible gas with its chemical equivalent of air for perfect combustion, introducing same to a burner, lighting the said combustible gas, lowering it into a solution, and suspending or dissolving in said covering solution the required substance to be acted upon. (3.) In a process for the treatment of substances with nascent carbon-dioxide, mixing a carbonaceous combustible gas with a chemical equivalent of air for perfect combustion, introducing same under pressure to a burner under water, lighting said combustible gas, mixing in said water calcium-borate, and the recovery of boric acid in solution by prompt decanting whilst warm.
(Specification, 3s.; drawings, 1s.)

No. 14871.—10th May, 1902.—ALFRED HEDLEY COTTON, of Omanai, Hokianga, Auckland, New Zealand, Teacher. An improved combination mustard-pot.

Claim.—The combination and arrangement in a mustard-pot as specified of the cylinder, cap on cylinder, nozzle in cap or upper part of cylinder, inwardly projecting circular flange at lower end of cylinder, said flange being screwed threaded or grooved, ejector, flange on upper end of said ejector, said ejector screwed threaded or grooved to fit on or in flange on said cylinder, and said flanges suitably packed, all for the purpose substantially as described and illustrated.
(Specification, 2s. 3d.; drawings, 1s.)

No. 14873.—8th May, 1902.—JAMES HENRY GRATTAN, of Avondale, Auckland, New Zealand, Machinist. An improved combination saw stripper and regulator.

Claim.—In a combination saw stripper and regulator of the kind specified, the combination and arrangement of the plates, files fitted into grooves in said plates, closing-bolts, short bolts, slotted upright pieces screwed into plates, set-screws and fittings holding said files in said plates, all for the purpose set forth, substantially as described.
(Specification, 2s. 3d.; drawings, 1s.)

No. 14879.—15th May, 1902.—JAMES THOMAS HUNTER, of Queen’s Chambers, Wellington, New Zealand, Engineer (nominee of William Chapman, of 2, Norfolk Street, Strand, London, England, Electrical Engineer). Improvements in track-construction for electric railways operated on the conduit system.

Claims.—(1.) In an electric railway operated on the conduit system, a road-box for permitting the plough to be inserted in and withdrawn from the conduit, the flaps forming the cover of the box being pivoted on supports which are located at the ends of the box whereby they can be brought near to the centre line of the slot. (2.) The arrangements for supporting the flaps of a road-box to prevent them from opening when subjected to downward pressure, substantially as described with reference to Fig. 3 of the drawings. (3.) For permitting the plough to be inserted in and withdrawn from the conduit of electric railways, a road-box having flaps and operating-means constructed substantially as described and illustrated in Figs. 1 to 3 of the drawings. (4.) In an electric railway operated on the conduit system, spring slots for use at a branch or turnout having tongues with bevelled ends vertically pivoted beneath the upper surface of the slot rails, and each provided with a spring which can be arranged to normally force the tongue across the slot or to withdraw it and leave the slot normally open. (5.) The construction of spring slot points substantially as described with reference to Figs. 4 to 7 of the drawings. (6.) For electric railways operated on the conduit system, the arrangement for operating the points substantially as described with reference to Figs. 8, 9, and 10 of the drawings. (7.) In an electric railway operated on the conduit system, the construction of the track at crossings in which the track rails are supported on yokes with bevelled ends secured together to form a box or casing enclosing a pit, the junctions of the slot rails being supported by a pillar, the upper part of which is provided with upwardly projecting arms bolted to the undersides of the slot rails, the inner surfaces of said arms being shaped to the form of the intersecting conduits. (8.) For electric railways operated on the conduit system, arrangements for supporting the track constructed substantially as described with reference to Figs. 11 to 16 of the drawings.
(Specification, 8s.; drawings, 5s.)