Oct. 25.] THE NEW ZEALAND GAZETTE. 1961

Claim.—The combination of two or more chain driving-gears fitted to one velocipede, with at least one wheel of the pair of wheels belonging to each chain-gear free; and each free wheel fitted with adjustable lug, pawl, or clutch, or several of them, so that any one of the gears may be thrown in or out of use for driving the velocipede by having its free wheel rendered fixed or free by means of a changing-lever attached to an easily accessible part of the velocipede-frame, which changing-lever, by means of suitable connection, as wire, cord, rod, or suchlike, adjusts guides attached to the velocipede-frame, so that they throw in or out of gear, as the case may be, the lugs, pawls, or clutches used to render the changing-gear wheels fixed or free, all for the purpose set forth, substantially as described and illustrated.
(Specification, 7s. 6d.; drawings, 8s.)

No. 13058.—12th October, 1900.—THE INTERNATIONAL METAL-EXTRACTION COMPANY, a corporation organized under the laws of the State of Colorado, United States of America, whose principal office is located at 252, Equitable Building, Denver, Colorado aforesaid (assignee of Morris Seligsohn, of 252, Equitable Building, Denver aforesaid, Chemist). A method or process of treating ores.

Claims.—(1.) The described process of treating ores which consists in introducing into the wet pulp air charged or impregnated with chemicals which will have the effect not only of altering the physical conditions of the particles being treated, but also are efficacious in keeping the amalgam clean and of the proper consistency, and efficacious in preventing its “sickening” and “flouring.” (2.) The described process of treating ores which consists in the discharge into the wet pulp of air charged or impregnated with chemicals which will not only alter the physical condition of the particles being treated, but also is efficacious in saponifying any grease or oil that may be present in the pulp, clarifying and making the pulp more amenable to amalgamation by its action upon the clay and matter in suspension, and keeping the amalgam upon the plate clean and of proper consistency to accomplish its functions. (3.) The described process of treating ores which consists in bringing ammoniated air in combination with chlorine gas into the presence of wet ore-pulp. (4.) The described process of treating ores which consists in admitting ammoniated air in combination with chlorine gas below the surface of wet ore-pulp, and discharging it upwards therethrough. (5.) The described process of treating ores which consists in bringing ammoniated air and bromine gas into the presence of wet ore-pulp. (6.) The described process of treating ores which consists in bringing ammoniated air, bromine and chlorine gas, into the presence of wet ore-pulp. (7.) The described improved amalgamation process of treating ores which consists in bringing bromine gas into the presence of wet ore-pulp, which gas acts upon the values, altering their exterior in such a manner as to make them subject to subsequent amalgamation, and also prevents the “sickening” and “flouring” of the mercury. (8.) The described process of treating ores which consists in bringing chlorine gas into the presence of wet ore-pulp, which gas acts upon the values, altering their exterior in such a manner as to make them subject to subsequent amalgamation, and also prevents the “sickening” and “flouring” of the mercury. (9.) The described process of treating ores which consists in bringing bromine gas in combination with chlorine gas into the presence of wet ore-pulp, which gas acts upon the values, altering their exterior in such a manner as to make them subject to subsequent amalgamation, and also prevents the “sickening” and “flouring” of the mercury. (10.) The described process of separating ores which consists in bringing said ores into the presence of ammoniated air in the manner and for the purpose herein set forth.
(Specification, 8s.; drawings, 5s. 6d.)

No. 13060.—12th October, 1900.—FREDERIC GODFREY HUGHES, of National Mutual Buildings, Collins and Queen Streets, Melbourne, Victoria, Legal Manager (assignee of John Hyland, of 20, Acland Street, St. Kilda, Victoria, Gentleman). An improved bandoleer or cartridge-belt for carrying ammunition for magazine rifles and other small-arms.

Claim.—An improved bandoleer or cartridge-belt, having a series of containers or clips, each constructed so as to hold the number of cartridges required to fill the magazine, and to admit of said cartridges being pressed direct from the bandoleer into the breech or magazine of the rifle or other small-arm in one operation, substantially as and for the purposes specified.
(Specification, 5s. 3d.; drawings, 10s. 6d.)

No. 13061.—12th October, 1900.—ELECTRIC LIGHTING BOARDS, LIMITED, of 3, Waterloo Place, Pall Mall, London, England, Manufacturers (assignees of Julian Adolphe Halford, of 22, Chepstow Villas, Bayswater, London aforesaid, Manufacturer). Improvements in conductors and contacts for electrical glow lamps..

Claims.—(1.) A conducting bar or board, containing in grooves along it two insulated bundles of conducting-wires adapted to receive spikes connected to the wires of a glow lamp, stand, or electrical fitting, substantially as described with reference to Figs. 1 and 2. (2.) A conducting-bar, containing in grooves along it two insulated bundles of conducting-wires adapted to receive spikes connected to the wires of a glow lamp or connection-fitting, and provided with a dovetail to receive the conical head of the sheath of a fitting or a conical ring, or the head of a lamp, substantially as described with reference to Figs. 3, 4, 5, and 6. (3.) A flexible conductor or cable containing two insulated bundles of conducting-wires, with non-conducting penetrable covering, substantially as described with reference to Fig. 7. (4.) A glow lamp having spikes connected to its leading-in wires, and on its head a projecting annular bead, by which it can be pushed on to a conducting bar, board, or cable, its spikes penetrating conductors therein, substantially as described with reference to Figs. 1 and 7. (5.) A glow lamp or connection-fitting, having spikes connected to its wires, and a rotatable conical ring or head by which it can be pushed on to an inverted conducting-bar, and held in a dovetail thereof, substantially as described.
(Specification, 4s.; drawings, 10s. 6d.)

No. 13062.—12th October, 1900.—WILLIAM JOHN LINTON, of 30, Norwich Avenue, Woodstock, Ontario, Canada, Draftsman and Designer. Improvements in hydraulic air-compressors.

Claims.—(1.) The combination with an hydraulic air-compressor of the type described, comprising a descending body of water, means for introducing air into said body of water while it is descending, and means for separating said air and water, of means for automatically regulating the power of compression of said compressor to a predetermined normal, for the purpose set forth. (2.) In combination with the standpipe of an hydraulic air-compressor of the class described, a valve for automatically controlling the passage of water through said standpipe, for the purpose set forth. (3.) In an hydraulic air-compressor of the class described, means for automatically controlling the supply of air to said compressor. (4.) In an hydraulic air-compressor of the class described, the combination with the water-conductor of an air-supplying section, consisting of a hollow annular part resting upon the upper end of said water-conductor, a series of air-conducting bars extending transversely of and communicating at their ends with said annular part, and having air-exits in their under-sides, an air-conducting pipe communicating with the atmosphere at its upper end and connected to said annular part at its lower end, and a damper for controlling said pipe, substantially as described, and for the purpose set forth. (5.) In an air-compressor of the class described, the combination with the standpipe of a series of horizontally arranged air-supplying sections superimposed one upon the other, and an independent air-conducting pipe leading to each section, substantially as and for the purpose set forth. (6.) In an air-compressor of the class described, the combination with the standpipe of a series of horizontally arranged air-supplying sections superimposed one upon the other, each section consisting of a hollow annular part, and a series of air-conducting bars of V cross-section, arranged with their open sides facing downward, extending transversely of and communicating at their ends with said annular part; an independent air-conducting pipe leading to each section, and a damper for controlling each pipe, substantially as and for the purpose set forth. (7.) In an hydraulic air-compressor of the type described, comprising a descending body of water, a series of air-supplying devices immersed at their lower ends in said descending body of water and communicating at their upper ends with the atmosphere, and adjustable means for deflecting said water as it varies in volume to envelope the air-egress ports of said devices, for the purpose set forth. (8.) In an hydraulic air-compressor of the type described, comprising a descending body of water, a series of air-supplying devices immersed at their lower ends in said descending body of water, and communicating at their upper ends with the atmosphere, means for automatically controlling the passage of air through the air-egress ports of said devices, for the purpose set forth. (9.) In combination with the standpipe of an hydraulic air-compressor of the class described, a valvular cylindrical section of a diameter to rest upon the top of said standpipe, and means for adjusting said valvular section to and from said standpipe, for the purpose set forth. (10.) In an hydraulic air-compressor of the class described, the combination with the standpipe thereof and the pipe for conducting the compressed air therefrom of