898
THE NEW ZEALAND GAZETTE.
[No. 30

filter-beds and a perforated plate below which is an air-space and blocks of pumice or large stones, substantially as and for the purposes set forth. (14.) The combination and arrangement of parts comprising my improved apparatus for treating sewage, abattoir refuse, or blood, substantially as and for the purposes set forth.
(Specification, 5s. 6d.; drawings, 4s.)

No. 14676.—26th March, 1902.—GERALD JOSEPH PEROTTI, of Greymouth, New Zealand, Timber Merchant. Improvements in amalgamating-apparatus for gold-saving purposes.

Claims.—(1.) In amalgamating-apparatus, in combination, a revolvable barrel having a sleeve at one end, and an axle provided with concave paddles and made to revolve in an opposite direction to the barrel, substantially as and for the purposes specified and illustrated. (2.) In amalgamating-apparatus, in combination, a revolvable barrel having a sleeve at one end, ribs of irregular shape on the interior periphery of the barrel, and an axle provided with paddles and made to revolve in a direction opposite to the barrel, substantially as and for the purposes specified and illustrated. (3.) In amalgamating-apparatus, in combination, a revolvable barrel having a sleeve at one end, ribs of irregular shape on the interior periphery of the barrel, an axle provided with paddles and made to revolve in a direction opposite to the barrel, a discharge-opening, a filling-trap, and nozzle for the introduction of quicksilver, substantially as and for the purposes specified and illustrated. (4.) The combination and arrangement of parts comprising my improvements in amalgamating-apparatus, substantially as and for the purposes specified and illustrated.
(Specification, 3s.; drawings, 1s.)

No. 14678.—27th March, 1902.—JOHN HILTON SMITHIES BROWN, of Woodville, New Zealand, Engineer. An improved siphon.

Claims.—(1.) In a siphon for drawing off kerosene from kerosene-tins, a wire fixed to the shorter leg of the siphon and bent to a right angle to form a vertical member, the said vertical member being pointed at its end, substantially as and for the purposes set forth. (2.) The combination with a siphon of a wire fixed to the shorter leg of the siphon and bent to a right angle to form a vertical member, said vertical member being pointed at its end, substantially as and for the purposes set forth. (3.) The combination with a siphon of a wire fixed to the shorter leg of the siphon and bent to a right angle to form a vertical member, said vertical member being pointed at its end, and a spring bracket having a flat top to bear against the kerosene-tin, substantially as and for the purposes set forth. (4.) The combination and arrangement of parts comprising my improved siphon, substantially as and for the purposes set forth, and illustrated on the drawing.
(Specification, 2s.; drawings, 1s.)

No. 14679.—1st April, 1902.—JAMES JOHN AUSTIN, of 147, Grey Street, Auckland, New Zealand, Woven-wire-mattress Manufacturer. Improvements in woven-wire mattresses.

Claims.—(1.) A woven-wire mattress having the end pieces of the frame extended so as to project beyond the length pieces of the frame, with the woven wire turned over the ends of the end piece, substantially as described and illustrated. (2.) The combination in a woven-wire mattress of a frame having the end pieces extended beyond the length pieces, and having the woven wire turned down over the ends of the end pieces; the packing of all seams and joints with a vermin-proof material; the application of a solution, noxious to insect life, to all woodwork, and the application of boiled linseed-oil or copal varnish to the woven wire, substantially as described and illustrated, and for the purposes specified.
(Specification, 1s. 9d.; drawings, 1s.)

No. 14682.—26th March, 1902.—VALVES, LIMITED, of Suffolk House, Laurence Pountney Hill, London, England, Manufacturers (assignees of John Radcliffe Croft, of 20, Mark Lane, London aforesaid, Merchant). Improvements in the hermetic sealing of tins and like receptacles.

Extract from Specification.—This invention relates to the hermetic sealing of tins and other receptacles for the preservation of alimentary and other substances. Great difficulty has hitherto been experienced in effecting a satisfactory hermetic closure of receptacles containing alimentary substances for preservation, and the object of this invention is to provide improved means by which an effective and reliable hermetic closure may be obtained. Without going through the various details of the well-known hot-bath and retort processes for the preservation of alimentary and other substances in receptacles hitherto in use, it may be stated that the principal defects and causes of failure are due to the fact that during the processes a difference of pressure exists except for an instant between the inside and outside of the receptacles, and that the application of the solder or other sealing-material is only effected in an atmosphere not sterile, and after the pressure has become greater outside than inside the receptacle, and the consequence is that prior to the closing of the tins or receptacles a certain quantity of air has found access to the receptacle before the seal is effected. To provide against the bad results of this readmission of air, the receptacles are subjected to a second application of heat, which has a very detrimental effect upon the contents when of a certain class, the said contents being in most cases overcooked. Now, according to this invention, the sealing-material is caused to act and effect a closure automatically and without removal of the receptacles from the sterile chamber, whether it be a bath, retort, or vacuum chamber. The solder or sealing-material which is employed, and the position in which it is placed, together with the construction of the venting-aperture of the tins or receptacles, is such that all air in the receptacles, or steam and vapour generated from the contents by a cooking process, can pass freely out through the vent either before or after the sealing-material has been melted; but the construction of the valve prevents the passage or re-entry of even the smallest quantity of air or external matter into the receptacle. The setting and melting temperatures of the sealing-materials and the temperature at which the same will flow are or may be so arranged or determined as to require a variation of but a few degrees from that required to sterilise or cook the contents of the receptacles, as the case may be. What are known as fusible metals, which melt at low temperatures, are specially suitable as a solder for use with the sealing-device hereinafter described. Also, by this invention one is able to employ a cold vacuum or sterile chamber for exhausting the air from the receptacles, and in such a process it is convenient to use paraffin wax or like sealing-material having a low melting-point, although metal solder may be employed if required. The improved receptacles employed are provided with a venting-aperture situated in or and connected to a recess, pipe, chamber, or other part adapted to receive the sealing-material. The said recess, pipe, or chamber is provided with a cap or valve adapted to be stopped by the sealing-material when melted, and is also provided with a plug or stop made of porous material or fabric adapted to pass air but to deter the passage of the sealing-material.
[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, 13s.; drawings, 4s.)

No. 14689.—3rd April, 1902.—SAMUEL HOLMES, CHARLES HOLMES, and ARTHUR HOLMES, all of the Star Foundry, Robertson Street, Kensington, Victoria, Oven and Range Manufacturers. Improvements in bedsteads.

Extract from Specification.—The object of this invention is to provide an efficient means for preventing wire mattresses from slipping from bedsteads. This result is achieved by permanently attaching to each side of the bedstead-frame a pair of lugs as illustrated in the drawings.

Claims.—(1.) In bedsteads, the combination with the frame of four lugs, two at each side, substantially as illustrated, and for the purpose set forth.
(Specification, 1s.; drawings, 1s.)

No. 14690.—1st April, 1902.—UNIVERSAL SEAL AND STOPPER COMPANY, a corporation organized under the laws of the State of New Jersey, and doing business at Camden, New Jersey, United States of America (assignees of Edward Daniel Schmitt, of 2444, Woodbrook Avenue, Baltimore, Maryland, United States of America). Improvements in and relating to machines for sealing bottles.

Extract from Specification.—This invention consists in the main of providing a sealing-head with a compound plunger, the parts thereof being capable of independent vertical movement, so that a portion of the plunger enters the bottle-neck, carrying the seal with it, and seats said seal upon a shoulder in said bottle-neck, either upon the downward movement of the plunger or sealing-head or the upward movement of the bottle, and which, when the seal is seated in the bottle-neck, movement of another part of the plunger brings it into position to operate upon the locking-means of the seal to yieldingly lock it in place in said bottle-neck.
[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, 13s.; drawings, 3s.)