Dec. 12.] THE NEW ZEALAND GAZETTE. 2401

of pickets, a set of presser rollers arranged to hold down the pickets as they pass the rotary cutters, substantially as and for the purposes specified. (7.) In a machine for shaping the heads of pickets, a feed-wheel mounted at one end of the frame and adapted to feed pickets one after another forwardly along horizontal tables to rotary cutters arranged in the line of travel of said pickets, substantially as and for the purposes specified, and as illustrated in Figs. 7 and 8 of the drawings. (8.) In a machine for shaping the heads of pickets, a feed-wheel arranged to feed pickets forwardly one after another over horizontal tables and between a pair of rotating rollers and endless feed-chains in combination with rotary cutters, substantially as and for the purposes specified, and as illustrated in Figs. 7 and 8 of the drawings. (9.) In a machine for shaping the heads of pickets, a pair of endless chains between which the pickets are fed, having wooden blocks bolted to lugs on the sides of each link and passing round sprocket-wheels, substantially as and for the purposes specified, and as illustrated in Figs. 7, 8, and 11 of the drawings.

(Specifications, 6s. 6d.; drawings, 3s.)

No. 14298.—3rd December, 1901.—EDWARD CHESTER AND COMPANY, LIMITED, of 120, Bishopsgate Street Within, London, England, Engineer (assignees of Edward Descon Chester, of 120, Bishopsgate Street Within, London aforesaid, Engineer). Improvements in the construction of tanks.

Claims.—(1.) A tank constructed of sides formed of plates with intermediate standards grooved to receive and make joint with the ends of the plates, ties for drawing adjacent standards towards one another, a floor or bottom extending beneath the lower edge of the side plates, and ties for drawing together and closing the joint between the side plates and bottom of the tank, substantially as described. (2.) A circular tank constructed of sides formed of curved plates with intermediate standards grooved to receive and make joint with the ends of the plates, and provided with jaws extending beneath the tank-bottom, tie-rods connecting the standards circumferentially of the tank for drawing adjacent standards towards one another, a floor or bottom extending beneath the lower edge of the plates, wedges interposed between the standards and upper edge of the plates for insuring continuity of the joint between the wall and bottom of the tank, wedges interposed between the jaws of the standards and the bottom of the tank for forcing the plates and bottom together, and hook-bolts intermediate of the standards, said bolts engaging with the upper edge of the plates and extending through the bottom of the tank and having nuts for drawing the plates and bottom of the tank together, substantially as specified. (3.) In a circular tank constructed with curved side plates and intermediate standards grooved to receive and make joint with the ends of the plates, the combination with the plates and standards of circumferential tie-rods for drawing adjacent standards towards one another, said tie-rods connecting adjacent standards and being curved to bear against the outer face of the plates, substantially as specified. (4.) A tank having a side or wall constructed of plates and standards intermediate of adjacent plates, and provided with ties for drawing adjacent standards towards one another, the standards being formed with grooves to receive and make joint with the ends of the plates as specified. (5.) A circular tank constructed of curved plates, standards intermediate of and making joint with the ends of adjacent plates, ties for drawing adjacent standards towards one another, a floor or bottom extending beneath the lower edge of the plates, and ties for drawing the plates and bottom of the tank together, the margin of the floor being rebated on the upper surface so as to permit of caulking the joint between the rebate and the inner face of the plates, as specified. (6.) A tank constructed of plates, standards intermediate of the plates, and a bottom or floor extending beneath the lower edge of the plates, the standards being adapted at one end to engage the upper edge of the tank and being provided at the other end with jaws which extend beneath the bottom or floor so as, in connection with wedges or their equivalent, to constitute cramps whereby to force the plates and standards against the bottom and so make a tight joint, substantially as specified. (7.) A circular tank having a side or wall constructed of curved plates and intermediate standards, a bottom or floor of planks joined together and extending beneath the lower edge of the plates, ties for drawing the plates and bottom of the tank together, and a metal ring extending around the circuit of the tank beneath the underside of the margin of the bottom for binding together the floor-planks, and distributing the pressure of the ties, as described.

(Specification, 6s.; drawings, 2s.)

No. 14299.—3rd December, 1901.—THE VICTORIAN FORAGE-PRESSING COMPANY PROPRIETARY, LIMITED, whose registered office is at 112, Ryrie Street, Geelong, Victoria (assignees of James Ferrier, of Coleraine, Victoria, Farmer). An improved press for compressing forage, chaff, grain, and the like.

Claims.—(1.) A press for compressing forage, chaff, grain, and the like, in which the box is raised bodily by the ram over a stationary presser or plunger, substantially as and for the purposes specified. (2.) In a press for compressing forage, chaff, grain, and the like, a box adapted to be raised clear of the compressed material in combination with an operating ram and a stationary presser or plunger, substantially as and for the purposes specified. (3.) In a press for compressing forage, chaff, grain, and the like, a sliding box, the inner circumference of the lower portion of which has a slight outward flare, in combination with an operating ram and a stationary presser or plunger, substantially as and for the purposes specified. (4.) In a press for compressing forage, chaff, grain, and the like, a hollow stationary presser or plunger, having a feed-shute within, and a removable monkey-plate adapted to bear against its end when the box is filled, substantially as and for the purposes specified.

(Specification, 1s. 9d.; drawings, 2s.)

No. 14300.—3rd December, 1901.—EMIL KNUDSEN, of Sulitjelma, Norway, Director. Improvements in the method and means of treating pyrites or sulphide ores.

Claims.—(1.) Process of smelting and concentrating pyrites or sulphide ores, consisting in charging the ore in a furnace the lining of which is in a highly heated state, blowing unheated air into the charge at the lowest point of the furnace, emptying the furnace when the smelting and concentration is completed to the desired extent, and refilling the furnace while its lining is in the highly heated state imparted to it by the foregoing smelting, so that the smelting of each new charge is induced by the heat magazinised in the lining of the furnace without or with a diminutive use of fuel. (2.) Furnace for carrying out the aforesaid process of smelting and concentrating pyrites, being preferably in the form of a converter, and having a tapering lower part, at the bottom of which the blast-nozzles are placed.

(Specification, 3s. 3d.; drawings, 1s.)

No. 14304.—4th December, 1901.—JOHN THOMAS CALVERT, of 263, Hornsey Road, Holloway, London, England, Watchmaker. Improvements in or pertaining to the heads or steering-stems of bicycles and other road carriages.

Claims.—(1.) In the heads or steering-stems of bicycles and other road carriages, the combination of a steering-stem B attached to the crown A of the forks or other steering-appliances an handle-stem E capable of longitudinally sliding in such stem B, a strengthening-tube M firmly fixed inside this stem B, and a rotatable screwed rod T connecting such stem E with such tube M, substantially as and for the purposes described and declared. (2.) The combination with a steering-stem B attached to a crown A of an inner tube M and a stout wire P coiled spirally round such tube M and treated with molten solder, brass, or other material to join such wire P both to the inner tube M and to the outer tube B, substantially as described. (3.) The improvements in the heads or steering-stems of bicycles and other road carriages, substantially as described and shown in the drawing.

(Specification, 2s. 6d.; drawings, 1s.)

No. 14309.—5th December, 1901.—CHARLES VINCENT POTTER, of 43, The Avenue, Balaclava, Victoria, Engineer. An improved solution to be used in and process for the separation of metals from sulphide ores.

Claims.—(1.) As a solution for the treatment of sulphide ores for the separation of metals therefrom, the mixture of sulphuric or other acid with water in the proportion of from 1 to 10 per cent. of acid to the quantity of water used, mixed, applied, and used as described. (2.) As a means for separating metals from sulphide ores, the admixture in a suitable vessel with such ores (reduced to a powdered or pulverised condition) of an acidulated solution, and applying heat thereto to bring the whole mixture to a sufficiently high temperature to cause the metals therein to rise or float to the surface. (3.) The process of separating metals from pulverised sulphide ores, concentrates, and slimes by mixing an acidulated solution therewith, stirring, heating, skimming, or floating off such metals from the surface of the whole admixture as they rise, so as to recover such concentrates of metals ready for after-treatment, as and in manner described.

(Specification, 3s.)