744
THE NEW ZEALAND GAZETTE.
[No. 30

below the safety limit or when the shunt-circuit is opened, for the purpose specified. (2.) In a system of electrical distribution in which translating-devices are supplied with direct currents through rotary converters from a source of alternating current, a circuit-breaker for each converter, the energising of the locking-coil of the breaker being controlled by the field-magnet current of the converter, for the purpose specified. (3.) A system of electrical distribution, arranged substantially as described, and shown in the drawing.
(Specification, 5s.; drawings, 1s.)

No. 13467.—12th March, 1901.—THOMAS CLARK, of Auckland, New Zealand, Tailor. An improved fastening for leggings.

Claims.—(1.) In fastenings for leggings, a metal rod secured within one edge of the legging and projecting below the bottom thereof, and provided with a right-angled tapered projecting piece near its top end, in combination with a metal rod secured within the other edge of the legging and formed with a right-angled loop projection below the bottom, and a spring pin near the top that is adapted to spring into a hole in the projecting piece on the first edge of the legging when the two edges are brought together, as and for the purposes specified. (2) The general arrangement, construction, and combination of parts in my improved fastening for leggings, as described, as illustrated in the drawings, and for the purposes set forth.
(Specification, 2s. 3d.; drawings, 1s.)

No. 13470.—13th March, 1901.—WILLIAM STEPNEY RAWSON, of 25, Victoria Street, Westminster, London, England, Engineer, and ROBERT DEXTER LITTLEFIELD, of 30, Ben-sham Manor Road, Thornton Heath, Surrey, England, Analytical Chemist. Manufacture of refractory bricks, furnace-linings, crucibles, and other articles.

Claims.—(1.) Refractory articles made of calcined magnesite or magnesium-oxide, finely pulverised, mixed with a small proportion of a fusible compound of boron, also pulverised, and baked at a high temperature. (2.) Impervious refractory articles made of calcined magnesite or magnesium-oxide, finely pulverised, mixed with a fusible basic borate also pulverised, and partially vitrified by baking at a high temperature. (3.) Impervious refractory articles made of calcined dolomite mixed with calcined magnesite or magnesium-oxide and a fusible compound of boron, all finely pulverised, and partially vitrified by baking at a high temperature.
(Specification, 2s. 6d.)

No. 13471.—13th March, 1901.—ARCHIBALD WHITE MACONOCHIE, of the firm of Maconochie Brothers, of 131, Leadenhall Street, London, England, Merchants. Improvements in the manufacture of tins or containers for enclosing preserved foods, provisions, or the like.

Claims.—(1.) A tin or container for enclosing preserved foods, provisions, or the like, the said tin or container consisting of a lid or cover with a flange, a sheet or disc of paper covering the whole of the under-side of the lid or cover and its flange, and a body part made by drawing or stamping from one piece of tin plate, and with a flange around its upper edge somewhat less than the flange around the lid or cover, the flanges of the lid or cover and of the body part, and the edge of the paper sheet or disc, being turned over or spun together so as to form a solderless joint, substantially as described. (2.) A tin or container for enclosing preserved foods, provisions, or the like, the said tin or container consisting of a lid or cover with a flange, a sheet or disc of paper covering the whole of the under-side of the lid or cover and its flange, and a body part made by drawing or stamping from one piece of tin plate, and with a flange around its upper edge somewhat less than the flange around the lid or cover, and a paper lining for the body part, with a flange to cover the flange of the body part; the flanges of the lid or cover of the body part, and the edges of the paper under the lid or cover, and of the paper forming the lining of the body part, being turned over or spun together so as to form a solderless joint, substantially as described.
(Specification, 4s.; drawings, 1s.)

No. 13473.—14th March, 1901.—GEORGE BROUGHAM HUBERT AUSTIN, of Tooronga Road, Malvern, near Melbourne, Victoria, Architect. Improved mechanism for utilising the “bumping” of cyclists for assisting in the propulsion of cycles.

Claims.—(1.) In mechanism for utilising the “bumping” of cyclists for assisting in the propulsion of cycles, a vertically sliding rod, tube, or plunger carrying the saddle, fitted with a spring, and having an anti-friction roller working within a horizontal slot in the upper arm of a bell-crank lever, the lower end of which is fitted with another anti-friction roller working within a curved slot or path in an arm projecting from the rotary half of a clutch on the crank-axle, substantially as described and explained. (2.) In mechanism for utilising the “bumping” of cyclists for assisting in the propulsion of cycles, a vertically sliding rod, tube, or plunger carrying the saddle and having a semicircular strip as a upon its outer surface, in combination with a down tube having a corresponding strip upon its inner surface, an anti-friction roller being mounted upon said down tube so as to bear against said plunger, substantially as described and explained. (3.) In mechanism for utilising the “bumping” of cyclists for assisting in the propulsion of cycles, a vertically sliding rod, tube, or plunger fitted with a spring and working within the saddle pillar or down tube, having anti-friction rollers projecting from it so as to bear against the inner surface of said down tube, in combination with a bell crank lever pivotally mounted within a casing and connected through the medium of a projecting arm with a clutch having balls or rollers working up inclined surfaces in one half or other of said clutch, substantially as described and explained. (4.) In mechanism for utilising the “bumping” of cyclists for assisting in the propulsion of cycles, a vertically sliding rod, tube, or plunger carrying the saddle and working within the down tube, in combination with a projecting arm upon a clutch on the crank-axle, said arm having a curved slot in which works the roller on the lower end of said vertically sliding rod, tube, or plunger, substantially as described and explained.
(Specification, 5s. 3d.; drawings, 3s.)

No. 13474.—14th March, 1901.—GEORGE THOMAS BOOTH, of Carlyle Implement-works, Sydenham, New Zealand, Engineer. An improved conductor-tube for agricultural implements.

Claim.—An improved conductor-tube for seed-drills and the like, formed of coiled wire, substantially as and for the purposes described and illustrated.
(Specification, 1s.; drawings, 1s.)

No. 13476.—14th March, 1901.—EDWARD CLARENCE PARMORE, of 111, Queen Street, Germantown, Philadelphia, United States of America, Electrical Engineer. Improved method of and apparatus for generating, treating, and utilising chlorine gas.

Claims.—(1.) In an apparatus for treating chlorine gas, an electric chamber consisting of a gas-way tube, housings connected to said tube, dielectric bulbs containing electrodes contained in said housings, in combination with a chlorine-generator connected to said gas-way tube, a pump connected to the apparatus, an induction coil, and electrical connections between said induction coil and electrodes. (2.) In an apparatus for treating chlorine gas, an electric chamber consisting of a gas-way tube, housings connected to said tube, dielectric bulbs containing electrodes, said bulbs extending through the housings and into the gas-way tube, in combination with a chlorine-generator and a receiver, both connected to said gas-way tube, a pump connected to the receiver and induction coil, and electrical connections between said induction coil and electrodes. (3.) In an apparatus for treating chlorine gas, the combination of a chlorine-generator, a gas-way tube connected to said generator, a receiver also connected to said gas-way tube, dielectric bulbs containing electrodes, housings for said bulbs, said bulbs extending into the gas-way tube, an induction coil electrically connected to said electrodes, and a pump connected to said apparatus, substantially as described. (4.) In an apparatus for treating chlorine gas, the combination of a chlorine-generator, an electric chamber, a receiver and a pump connected thereto, said electric chamber consisting of a gas-way tube connected at its ends to the generator and to the receiver, housings connected to the gas-way tube, dielectric bulbs in the housings, electrodes in the bulbs, and an induction coil electrically connected to the electrodes, the space between the bulbs and housings forming a trap for condensed acid, substantially as described. (5.) The art of treating chlorine gas which consists in—first, setting up an apparatus consisting of a chlorine-generator and an electric chamber, and expelling all the air from said apparatus; second, generating gas in said generator; third, passing said gas into said electric chamber; and, fourth, electrifying said gas in said chamber, substantially as described. (6.) The art of treating and utilising chlorine gas which consists in—first, expelling the air from a chlorine-generator; second, generating gas in said generator; third, drawing said gas into an electric chamber; fourth, electrifying said gas in said chamber; and, fifth, forcing the treated gas back and forth through the material to be treated, substantially as described. (7.) A new product consisting of freshly generated chlorine gas which has been electrified without the admixture of atmospheric air, substantially as described.
(Specification, 5s.; drawings, 1s.)