Oct. 17.] THE NEW ZEALAND GAZETTE. 2015

No. 14089.—4th October, 1901.—GEORGE SINCLAIR CAMERON, of Little Collins Street, Melbourne, Victoria, Bookseller (assignee of Mark Knight Westcott, of Imperial Chambers, Collins Street, Melbourne aforesaid, Corn-broker). An improved method of and apparatus for compressing fodder.

Claims.—(1.) My improved method of compressing fodder consisting in mixing or stirring it whilst at a temperature of about 212° Fahr. without the addition of extraneous moisture, then compressing it in blocks of 28 lb., more or less, in a press heated to about 150° Fahr., and maintaining it under pressure for about five hours whilst cooling, substantially as and for the purposes described and explained. (2.) My improved apparatus for compressing fodder consisting essentially of a steam-jacketed mixing-hopper with smooth bright inner surfaces and hollow steam-supplied stirring-arms, and a press the top and bottom plates and sides of which are adapted to be heated to 150° Fahr., more or less, substantially as and for the purposes specified.
(Specification, 2s. 3d.; drawings, 1s.)

No. 14090.—4th October, 1901.—GEORGE GREGORY SMITH, of Villa Bel Riposo, San Domenico, Florence, Italy, lawyer. Acetylene-gas generator.

Extract from Specification.—The present invention relates to acetylene-gas generators, and consists of certain improvements by means of which the employment of valves in the generating-machine is avoided, and the mechanism for puncturing the sealed gas-generating medium referred to in specification of New Zealand Patent No. 13350 is simplified. In the specification above referred to the gas-generating medium is inserted in the generator in a sealed condition, and when it is required to generate a further quantity of gas, the can, tin, or the like containing the medium was punctured at both ends, to allow the gas-generating fluid free access to the same, and simultaneously to allow the gas produced by the combination of the fluid and the gas-producing medium to escape through the second puncture, instead of providing one puncture only for the inlet of the active fluid and the outlet of the gas produced, as had been the case hitherto. In the said specification the further necessary supply of gas was effected by the fall of the gasometer, consequent upon the consumption of the gas in the same, in that in falling the gasometer was caused to release a weight, which in falling effected the puncture in the sealed case containing the gas-producing agent, and at the same time opened a valve or cock allowing the gas-generating fluid access to the case. Now, the employment of a valve in many gas-producing apparatuses, and particularly in the case of making acetylene gas, is disadvantageous: it easily gets clogged up, and its action is at no time absolutely reliable. In the present invention the valve is obviated by providing a movable receptacle for the liquid, which is fed to the generator when the said receptacle has been overturned, through a siphon pipe. The latter is self-sealing in the known manner, so that a valve is unnecessary. I have further found that in apparatuses of not too small dimensions, the weight of the sinking gasometer is sufficient to produce the puncture without employing a weight for the purpose, which is released by the fall of the gasometer. Thus the sinking gasometer will produce the puncture at both ends of the case without appreciably decreasing the pressure of gas in the gasometer during the puncture. The present invention also comprises certain details of construction as hereinafter set forth, including hollow puncturing-points, which allow the water to enter the case, and the gas to pass out of the same before the said punches have been withdrawn, and a switch mechanism for shifting the bell to operate a series of generators one after the other. A further object of the invention is to provide a carbide-holder having that part of the same which is to receive the puncture for the admission of the water or for the escape of the gas detachable, so that the case or holder may be reused any number of times if the punctured plate is removed, and replaced by a whole plate. Means are also provided for allowing the carbide developed on the admission of water to expand inwardly and thus to prevent the case from being broken or burst by the expansion of the carbide on generation of gas.
[NOTE.—The number and length of the claims in this case preclude them from being printed, and the foregoing extract from the specification is inserted instead.]
(Specification, 12s.; drawings, 6s.)

No. 14092.—4th October, 1901.—WILLIAM HUMBLE, of the Vulcan Foundry, Little Malop Street, Geelong, Victoria, Engineer (assignee of James Ferrier, of Coleraine, Victoria, Engineer). An improved machine for making furrows, and distributing poisoned grain or pasty material therein.

Claims.—(1.) In a machine for making furrows and distributing poisoned grain or pollard therein, a shoe as D, having outwardly projecting lugs on each side, substantially as and for the purposes specified. (2.) In a machine for making furrows and distributing poisoned grain or pollard therein, a hopper having a cylinder at its lower end fitted with a reciprocating plunger, one end of said cylinder being left open for the discharge of grain and adapted to be closed by means of a plug when pollard or other pasty material is to be discharged, substantially as and for the purposes specified. (3.) In a machine for making furrows and distributing poisoned grain or pollard therein, a hopper having a cylinder at its lower end fitted with a reciprocating plunger, the discharge end of said cylinder being fitted with a removable plug, the inlet to said cylinder being formed with a V-shaped opening, substantially as and for the purposes specified. (4.) In a machine for making furrows and distributing poisoned grain or pollard therein, the combination with a reciprocating knife of a guard or knife-cleaning plate as M, substantially as and for the purposes specified.
(Specification, 3s. 6d.; drawings, 1s.)

No. 14098.—5th October, 1901.—JAMES PALMER CAMPBELL, of Wellington, New Zealand, Registered Patent Agent (nominee of Frank Clarence Newell, of 526, Wallace Avenue, Pittsburg, Pennsylvania, United States of America, Electrical Engineer). Improvements in electric braking-apparatus for electrically propelled vehicles.

Claims.—(1.) A controller for electric motors the handle of which is so connected with the shaft carrying the movable contacts that said shaft will be rotated in the same direction when the handle is rotated in either direction from its neutral position, for the purpose specified. (2.) In a combined running and braking controller, the device for automatically operating the braking-switch when the controller-handle is moved from a running position to a braking position through its neutral position, and vice versa, substantially as described, and shown in the drawings. (3.) A controller for electric motors having its handle connected with the shaft carrying the movable contacts, through gearing constructed and operating substantially as described with reference to the drawings, and with or without a mechanical connection to the brake-switch for automatically operating same when the handle is moved through its neutral position.
(Specification, 12s. 6d.; drawings, 2s.)

No. 14099.—2nd October, 1901.—WALTER BILLS, of Miller Street, South Melbourne, Victoria, Wire-weaver. Improved coiler for wire-weaving machines.

Claims.—(1.) Improved coiler for wire-weaving machines consisting essentially of a tapering coil or spiral fitting closely around a correspondingly tapered spindle or mandrel, substantially as and for the purposes specified, and as illustrated in the drawings. (2.) In a coiler for wire-weaving machines, a tapering coil or spiral of softer material than the spindle upon which it is fitted, substantially as and for the purposes specified, and as illustrated in the drawings.
(Specification, 1s. 6d.; drawings, 1s.)

No. 14113.—10th October, 1901.—AUGUST SCHEIDEL, of the Union Club, Sydney, New South Wales, Engineer. Process for the extraction of metals out of their ores by continuous lixiviation and washing.

Claim.—Process for the continuous lixiviation and washing of ores ground extremely fine, by adding solution during the grinding, distinguished in that the pulp coming from the crushing-machine by the application of a sufficiently high vacuum is subjected to filtration by steps on several continuously working filters, one following after the other, in such a way that the clear solution is separated from each filter by means of an air-pump, and according to its percentage of metal is conducted to a precipitating apparatus, or, for further enrichment, to a regenerating vessel, or direct to the crushing-machine, whilst the respecting residues of filtration are scraped off by suitable devices, brought to an agitator by means of a suitable transportation-mechanism. This scraped-off pulp is diluted, in the latter or on the way to same, by solution coming out of the regenerating or the precipitating vessels, is lixivated again, washed out, and then taken to the next filter, in such a way that whilst continuously passing the residues from one filter to another and by simultaneously applying solution during each lixiviation and washing of the residues which follow the filtration, a complete solution is attained of the percentage of metal of the extremely fine ground ores under continuous circulation of the solution that can always be used again.
(Specification, 4s. 6d.; drawings, 1s.)