1236.                                                             THE NEW ZEALAND GAZETTE.                                      [No. 54

No. 12891.—17th August, 1900.—WILLIAM BROMILEY, of Dunedin, New Zealand, Miner. Improved insect-killing composition for use in orchards and the like.*

Claims.—(1.) The improved composition for attracting and killing insects consisting of malt, water, and bitters, combined substantially as and in the proportions specified. (2.) The improved composition for attracting and killing insects consisting of malt, water, and bitters, and sweetening matter, combined substantially as and in the proportions specified.
(Specification, 1s.)

No. 13111.—29th October, 1900.—GEORGE SMART, Plumber, and ROBERT WALKER ASHCROFT, Tinsmith, both of Stratford, New Zealand. Splashproof rim for milk-can lids and the like.*

Claims.—(1.) The combination and arrangement of air-spaces between the side of a can and the rim of the lid to prevent milk or other liquid splashing out of the can. (2.) The combination and arrangement of air-spaces between the side of a can and the rim of the lid to prevent milk or other liquid splashing out of the can, by ridges formed on the rim of the lid, substantially as shown and described.
(Specification, 1s. 6d.; drawings, 1s.)

No. 13172.—13th November, 1900.—JOHN CLARKE, of Orangeville, Ontario, Canada, Grain Merchant. Preservation and purification.

Claims.—(1.) The method of utilising air for preservative and sanitary purposes which consists in placing the matter or object to be treated in a chamber, supplying to the chamber air in large quantity, and allowing its escape in quantity less than that supplied, substantially as and for the purpose described. (2.) The method of utilising air for preservative and sanitary purposes which consists in placing the matter or object to be treated in a chamber, supplying to the chamber suitably charged or medicated air in large quantity, and allowing its escape in quantity less than that supplied, substantially as and for the purpose described. (3.) The combination with a chamber of an air-intake and an air-outtake device, the intake device being of capacity greater than that of the outtake device, substantially as and for the purpose described. (4.) The combination with a chamber of an air-intake and an air-outtake device, the intake device being of capacity greater than that of the outtake device, and an automatically operating valve to prevent back-draught, substantially as and for the purpose described.
(Specification, 7s.; drawings, 1s.)

No. 13265.—20th December, 1900.—EDWARD WATERS, Jun., a member of the firm of Edward Waters and Son, of 131, William Street, Melbourne, Victoria, Patent Agents (nominee of the Linotype Company, Limited, of 188, Fleet Street, London, England, the assignees of William Henry Lock, of 188, Fleet Street, London, aforesaid, Mark Barr, formerly of the Linotype Works, Broadheath, Chester, England, but now of 188, Fleet Street, London, aforesaid, and Warwick James Lewis and George William Hughes, both of the Linotype Works, Broadheath, aforesaid). Improvements in the matrices of linotype-machines and in apparatus for applying the said improvements thereto.

Claims.—(1.) The described combination of matrix-body, holes therein, and side plates having rebated ends adapted to fit in pairs in said holes. (2.) The described combination of matrix-body having two holes through it, two side plates having rebated ends, and filling adapted to hold the said side plates to the matrix-body by holding the said rebated ends by pairs in the respective holes. (3.) The described combination of hopper, way, feeder, and inserters with a pot to contain the filling-material, a pump to inject the same, and ports through which the injection can take place.
(Specification, 11s. 6d.; drawings, 2s.)

No. 13283.—2nd January, 1901.—EDWIN PHILLIPS, of 533, Collins Street, Melbourne, Victoria, Certified Patent Agent and Engineer (nominee of Everett Fleet Morse, of Trumansburg, New York, United States of America, Mechanical Engineer). Improvements in and connected with the gauging of high temperatures.

Claims.—(1.) The improvement in gauging the temperature of a substance when heated to incandescence consisting in comparing the degree of incandescence of said substance with a standard which is incandescent simultaneously therewith and incandescent to a degree corresponding to the incandescence of said substance when heated to the desired temperature. (2.) The improvement in gauging the temperature of a metal to be hardened or annealed consisting in comparing it with a substance of a like nature (with respect to incandescence) used as a standard and heated to a degree of incandescence corresponding to a known degree of temperature, said comparison being made by placing one of them in the rays passing to the eye from the other so that a portion at least of one will be superposed upon the field of the other, varying the temperature of the metal whereby it may be made to equal in degree of incandescence that of the standard, and the portion of the one superposed made to merge into the field of the other. (3.) The improvement in determining the temperature of an incandescent substance consisting in placing in the path of the rays passing from the incandescent substance to the eye an incandescent standard, and changing the degree of incandescence of said standard until it becomes practically identical with the incandescence of said substance. (4.) The improvement in gauging the temperature of a substance when heated to incandescence consisting in comparing the degree of incandescence of said substance with a standard which is incandescent simultaneously therewith and incandescent to a degree corresponding to the degree of incandescence of said substance when heated to the desired temperature, and at the same time showing or indicating the degree of incandescence or temperature of said standard. (5.) The improvement in gauging the temperature of metal consisting in employing a heat-gauge having a standard located in the path of the rays passing from the heated substance to the eye. (6.) The improvement in gauging the temperature of metal consisting in employing a heat-gauge having a standard composed of a substance which may be made incandescent, and which is of the same nature with respect to incandescence as is the metal being tested. (7.) The improvement in gauging the temperature of metal wherein the gauge consists of a tube having a filament located therein, an electric circuit including said filament, and a variable resistance in the circuit whereby the degree of incandescence of the filament may be changed or maintained. (8.) The improvement in gauging the temperature of metal wherein the gauge has an incandescing filament located in an electric circuit, and a variable resistance in the circuit consisting of a rotary cylinder having a screw-thread thereon, a conductor on said thread, and a movable mercury-contact engaged by said thread whereby a greater or less portion of said conductor may be added to or subtracted from the circuit by rotating the cylinder. (9.) The improvement in gauging the temperature of substances whose degree of incandescence changes with changes in temperature, consisting in employing a standard of comparison of the nature specified, and in the manner substantially as set forth.
(Specification, 9s. 6d.; drawings, 2s.)

No. 13498.—26th March 1901.—HONNEUS SULPHIDE COMPANY, LIMITED, whose registered office is at Brookman’s Buildings, Barrack Street, Perth, Western Australia (assignees of Albrecht Honneus, of Perth aforesaid, Mining Engineer). A process and means for converting refractory ore into free-milling ore.

Claim.—A process for the conversion of refractory ore into free-milling ore consisting of the employment of sulphur or a sulphur-yielding substance in combination with saltpetre or any nitriferous substance, which substances, when combined, are proportioned to the quantity of the ore being treated, in combination with the roasting of such ore, substantially as and in the manner explained and set forth.
(Specification, 1s. 9d.)

No. 13529.—9th April, 1901.—FRANK LESLIE WEBSTER, of Hamilton, New Zealand, Carpenter. Improvements in gates, and the method of hanging and operating them.

Claims.—(1.) The combination with a gate of a lever and supports so constructed that a gate hung by its centre on one end of the lever—which lever is at the proper point fulcrumed on a pivot between the two supports that work on pivots in the post, the upper end of the lever running by means of wheels and guide-rails attached to the post, the gate guided by a wire or rod stretched from the main post to the back stop—may be opened or shut from the roadway with force sufficient to overcome the inertia and friction, substantially as described. (2.) The combination with a gate of a lever and supports, the supports working on pivots in the post, the lever fulcrumed on a pivot between the supports at the proper point, the gate hung on one end of the lever, the upper end of the lever having wheels attached and running between guide-rails attached to the post, of a post made of two planks, a centre block of the proper dimensions below the ground-level, and a cap on top, the inside of the upper part of the planks having guide-rails attached, all sub-