APRIL 4.] THE NEW ZEALAND GAZETTE. 859

No. 13506.—28th March, 1901.—ALFRED BRAKE, of Wellington, New Zealand, but temporarily of 57 and 58, Chancery Lane, London, England, Aerated-water Manufacturer. Improvements in apparatus for drawing off liquids.

Claims.—(1.) In apparatus for drawing off liquids, an intermediate vessel that is normally in communication with a liquid-storage vessel, is adapted to have its upper end placed in communication with the external atmosphere, and is provided with a liquid-discharge outlet at the bottom, and means for mechanically opening the said outlet, the arrangement being such that normally the said intermediate vessel is in communication with the liquid-storage vessel, so that it will stand charged with liquid ready to be drawn off, that the upper end of the said vessel can be placed in communication with the external atmosphere and the gas-pressure within the said vessel relieved without or before closing the communication with the liquid-storage vessel, and that the outlet can be afterwards opened for drawing off the liquid, substantially as described. (2.) In apparatus for drawing off lager-beer and like frothy liquids, the combination with a vessel containing such liquid under pressure of an intermediate frothing vessel or chamber that is normally in communication with the said liquid-supply vessel, and into which liquid is delivered and allowed to stand previous to being drawn off, so that the froth formed in such intermediate vessel can settle therein, the top of which vessel can be placed in communication with the external atmosphere without closing the communication with the liquid-supply vessel, so as to allow a sufficient quantity of liquid to flow into it even when working at a comparatively low pressure, and from the bottom of which clear liquid can be drawn off without drawing off the froth, substantially as described. (3.) Drawing-off apparatus of the kind referred to in the preceding claims, wherein the liquid-outlet at the bottom of the intermediate vessel is controlled by a valve carried by a vertical rod located within the said vessel and having a limited downward motion, the arrangement being such that upon lowering the vessel sufficiently the downward motion of the valve-rod and valve will be arrested so as to open the outlet, which will be again closed when the vessel rises, substantially as described, whether or not the said rod be provided at its upper end with an inlet-valve adapted to close and open the communication between the intermediate vessel and the liquid-supply vessel. (4.) Drawing-off apparatus of the kind referred to in claims 1 and 2, wherein the opening and closing of the passage by which the top of the vessel is placed in communication with the external atmosphere and the subsequent opening and closing of the liquid-outlet at the bottom of the vessel are effected by moving the said vessel vertically, or by rotating the said vessel about its axis, substantially as described with reference to Fig. 1, Fig. 6, and Fig. 7 of the drawings. (5.) Drawing-off apparatus of the kind referred to in claims 1 and 2, wherein the intermediate vessel is stationary, and its upper end is adapted to be placed in communication with the external atmosphere and its outlet subsequently opened by a cock at the bottom of the said vessel, substantially as described with reference to Fig. 4 of the drawings. (6.) Drawing-off apparatus of the kind referred to in claims 1 and 2, wherein the intermediate vessel is stationary, and its upper end is adapted to be placed in communication with the external atmosphere and with the liquid-supply pipe by a cock arranged at the top of the vessel, and the liquid-outlet of the vessel is controlled by a plug connected to the plug of the upper cock, and working in a socket at the bottom of the vessel, substantially as described with reference to Fig. 9 of the drawings. (7.) Drawing-off apparatus of the kind referred to in claims 1 and 2, wherein the intermediate vessel is carried by a clip adapted to rotate about the liquid-supply pipe, and thereby open and close the liquid-supply aperture connecting the two, substantially as described with reference to Figs. 10 and 11 of the drawings. (8.) Drawing-off apparatus of the kind referred to in claims 1 and 2, wherein the valve for opening and closing the communication between the top of the intermediate vessel and the external atmosphere, and the valve for opening and closing the liquid-outlet at the bottom of the vessel, are connected to parts that are arranged to move in opposite directions, and between which there is a little lost motion, so that the liquid-outlet valve will be opened after the other valve has been opened, substantially as described with reference to Fig. 10 of the drawings. (9.) Drawing-off apparatus of the kind referred to in claims 1 and 2, wherein the communication between the top of the intermediate vessel and the external atmosphere, and between the said vessel and the liquid-supply pipe, are controlled by a cock located between the said vessel and pipe, and the valve for controlling the liquid-outlet of the said vessel is adapted to be opened from the exterior of the vessel, substantially as described with reference to Fig. 12 of the drawings. (10.) Drawing-off apparatus of the kind referred to in claim 1, wherein the intermediate vessel is combined with a liquid-supply vessel that is closed at the top so as to deliver liquid at less than atmospheric pressure, and is provided with a lower liquid-supply branch upon which the intermediate vessel is arranged to move vertically, the said intermediate vessel serving as a measuring-vessel, and having a liquid-outlet closed by a valve carried by a rod having a limited downward movement, substantially as described with reference to Figs. 13, 14, and 15 of the drawings. (11.) In drawing-off apparatus of the kind referred to, the combination with the intermediate vessel of a casing or jacket adapted to contain a cooling agent, and provided with means, such as a siphon or cock, for drawing off water of liquefaction, substantially as described with reference to Fig. 4. (12.) Drawing-off apparatus of the kind referred to in claims 1 and 2, wherein the liquid-supply pipe connected to the intermediate vessel is of less cross-sectional area than the liquid-discharge outlet of the said vessel, and is provided with means whereby its cross-sectional area can be closed or varied at will, substantially as described with reference to Figs. 4 and 8 of the drawings. (13.) Drawing-off apparatus of the kind referred to, wherein the upper part of the intermediate vessel can for the purpose of drawing off liquid therefrom be first placed in free and open communication with the external atmosphere so as to immediately reduce the pressure in the vessel to atmospheric pressure, after which the passage for air into the vessel will be so restricted that a partial vacuum will be formed in the vessel during the drawing-off of the liquid therefrom, substantially as described for the purpose specified. (14.) Drawing-off apparatus for delivering lager-beer and other like frothy beer, comprising an intermediate vessel that is closed at the top with the exception of a small air-hole, is adapted to be connected to a beer-supply pipe through which beer can be forced by the pressure of gas from a vessel below, and provided with separate inlet and outlet valves, the several parts being arranged and operating substantially as described with reference to Fig. 17 of the drawings. (15.) Apparatus for drawing off lager-beer and other like frothy beer, wherein the beer is caused by the pressure of carbon-dioxide gas to flow from a barrel into the cylinder of a force-pump, by which it is raised to the delivery-outlet, substantially as described. (16.) Drawing-off apparatus constructed, arranged, and operating substantially as described with reference to and shown in Fig. 1, in Figs. 4 and 5, in Fig. 6, in Fig. 7, in Fig. 8, in Fig. 9, in Fig. 10, in Fig. 11, in Fig. 12, in Figs. 13 and 14, in Fig. 16, in Fig. 17, and in Fig. 18 of the drawings, or modified as set forth.
(Specification, £1 8s.; drawings, 9s.)

No. 13508.—29th March, 1901.—OCTAVIUS CHARLES BEALE, Manufacturer, and CARL JOHANN VADER, Engineer, both of Nelson Street, Annandale, New South Wales. An improved wrest-pin for pianos and suchlike instruments.

Claims.—(1.) In a wrest- or tuning-pin for use in pianos and suchlike instruments, a conical friction-shoulder with a screw adjustment for obtaining the necessary tension, substantially as described and as illustrated. (2.) In pianos and suchlike instruments, the combination with the metal frame of a wrest- or tuning-pin having a conical friction-shoulder and a screw adjustment for obtaining the necessary tension.
(Specification, 2s. 6d.; drawings, 1s.)

No. 13509.—29th March, 1901.—SULPHUR ELIMINATION SYNDICATE, LIMITED, of 13, St. Helen’s Place, London, England (assignees of Adolph Gutensohn, of Crown Works, Park Street, Limehouse, London aforesaid, Working Chemist). New or improved process of eliminating the sulphur from sulphide ores.

Claims.—(1.) The described process for the elimination of sulphur from sulphide ores, consisting in heating the ore when it has been crushed and admixed with carbon and with sodium-sulphide, or with other suitable salt of sodium which will yield sulphide of sodium when the mixture is heated and when it has been heated to a temperature below incipient redness, exposing it freely to air to effect its oxidation and burn off all sulphur that is set free. (2.) The described process for the elimination of sulphur from iron-pyrites or iron-pyrites admixed with other sulphide ores, consisting in heating the ore when it has been crushed and admixed with carbon and with sodium-sulphide, or with other suitable salt of sodium which will yield sulphide of sodium when the mixture is heated and when it has been heated to a temperature below incipient redness, exposing it freely to air to effect its oxidation and burn off all sulphur that is set free. (3.) The described process for the elimination of sulphur from iron-pyrites and other sulphide ores, consisting in heating the ore when it has been crushed and admixed with sodium-sulphide, or with a mixture of carbon and sodium, sulphate, or other suitable salt of sodium