Feb. 9.] THE NEW ZEALAND GAZETTE. 601

form a rigid construction, substantially as described. (2.) A machine for reinforcing boards of wood or other suitable material fed in one or more pieces on guideway-plates and carried by carrier-cleats secured to an endless sprocket chain travelling on a bed-plate, top- and side-pressure springs to hold the material firmly in position during reinforcement and carried by an elevator, and means for imparting the necessary motion to perform such operation, substantially as described.

[NOTE.—Here follow eight other claims.]

(Specification, 11s.)

No. 28988.—11th January, 1911.—INTERNATIONAL MANUFACTURING COMPANY, whose postal address is Box 595, Wilmington, Delaware, United States of America (assignees of John Handy Parsons, Manufacturer, of Equitable Building, Wilmington aforesaid). Improved method of and apparatus for promoting combustion of fuel in furnaces.

Claims.—(1.) The art of promoting combustion in furnaces consisting in igniting a body of fuel supported on a grate, supplying air below the ignited body of fuel, introducing above said body of fuel heated air in the general direction of the draft of the furnace and in such volume as to oxidize the combustible gases and consume the carbon particles arising from the body of fuel, the volume and velocity of the introduced air being such as to cause an entraining action on the air passing through the bed of fuel whereby the amount of air passing through the bed of fuel is regulated by the regulation of the volume and velocity of the air introduced above the fuel. (2.) An independently formed air-injecting attachment adapted to be inserted in the firebox of a furnace, the same comprising a metal heater portion for the air, said portion having heat-conducting ribs on its interior, and nozzle or injecting-means for utilizing the air passing through said heater.

[NOTE.—Here follow eight other claims.]

(Specification, 11s. 6d.)

No. 28991.—13th January, 1911.—ROBERT STOPFORD, Medical Practitioner, and JOHN EDWARD OWEN, Manufacturer, both of Auckland, New Zealand. An improved rat-trap.

Claims.—(1.) A rat-trap consisting of a length of piping sealed at its bottom end, sunk vertically in the ground for a portion of its length and formed with entry-apertures in its side arranged on a level with the surface of the ground, a cover fitting over the top end of the pipe, and a pan or cage adapted to fit within the bottom of the pipe, substantially as specified. (2.) The improved rat-trap constructed and operating substantially as described and explained, and as illustrated in the drawings.

(Specification, 2s.)

No. 28994.—14th January, 1911.—ALEXANDER MACDONALD, of Littlebourne Road, Inventor, and WILLIAM ANDERSON YOUNG, of 137 Moray Place, Accountant, both of Dunedin, New Zealand. Improved wheel.

Claims.—(1.) A wheel constructed and arranged substantially as specified, and illustrated in the drawing. (2.) A wheel comprised of an iron rim and two pairs of integrally formed spokes, one-half of the boss which receives the axle being formed between each pair of spokes, and the pairs being secured by rivets upon each side of the axle, substantially as specified and illustrated.

(Specification, 1s. 3d.)

No. 29000.—17th January, 1910.†—HERBERT EDWARD EVANS, of 63 Bishopsgate Street Within, London E.C., England, Electrical Engineer. An improvement in electrical incandescent lamp-holders, ceiling-roses, or like articles to which flexible conductors are connected.

Claim.—An electrical lamp-holder, ceiling-rose, wall-plug, or like article provided with an independent and separate cord-grip for each separate flexible conductor, as described.

(Specification, 2s. 3d.)

No. 29002.—17th January, 1911.—ARTHUR EICHENGRUEN, Ph.D., of 87 Konstanzerstrasse, Berlin, Germany, Chemist. A process for the production of non-inflammable celluloid.

Extract from Specification.—Uniformly distributing the admixtures of camphor or camphor substitutes in the acetyl-cellulose by dissolving the admixtures either in a solvent which dissolves the admixtures but not the acetyl-cellulose, impregnating the acetyl-cellulose therewith, and then evaporating the solvent, or preferably by mixing the said solvent of the admixtures with a solvent which does dissolve acetyl-cellulose, which, however, is employed in such quantity only that it is prevented to have a direct solving action on the acetyl-cellulose so that at first essentially only a swelling-up of the latter results. Instead of a mixture consisting of a non-solvent for acetyl-cellulose and a solvent for the same, also mixtures of liquids can be employed which singly are no solvents for the acetyl-cellulose employed, such as, for instance, mixtures consisting of equal parts of alcohol and chlorinated, unsaturated, aliphatic hydrocarbons. When employing such mixtures the acetyl-cellulose can, in the presence of camphor substitutes, first be well moistened with the one component of the mixture, whereupon the second component is added; and only by this a swelling results, whereupon a solution is only effected upon kneading and heating.

[NOTE.—The above extract from the specification is inserted in place of the claims.]

(Specification, 8s. 9d.)

No. 29005.—14th January, 1911.—JAMES DEWAR HUNTER, of Moray Place, Dunedin, New Zealand. Improved pasteurizer, especially for milk-products impregnated with steam.

Extract from Specification.—A cylindrical metal shell having top and bottom covers, and means of securing the said shell vertically to a wall or to the floor. Within this case or shell are suitable ledges for supporting the perforated chambers which receive the milk, which is spread by a special valve, and so as to thoroughly impregnate it with the steam that is introduced where best adapted for that purpose.

[NOTE.—The above extract from the specification is inserted in place of the claims.]

(Specification, 2s. 9d.)

No. 29010.—18th January, 1911.—GEORGE LLEWELLYN DAVIES, of 72 and 73 Hop Exchange, London, England, Civil Engineer, and WALTER EDWIN WINDSOR RICHARDS, of 43 Sinclair Road, Kensington, London, England, Mining Engineer. New or improved process for the treatment of liquid hydrocarbons.

Claims.—(1.) The described process of treating tar, or the like liquid hydrocarbons, for the purpose of separating the lighter from the heavier liquid hydrocarbons therein contained, which consists in treating the liquid hydrocarbons to be separated by acidulation, and the addition of any suitable vegetable or mineral oil, such as ordinary mineral illuminating-oil (kerosene), fuel-oil, or petroleum-residues, naphtha, petrol, benzole, linseed-oil, or the like, stirring the mass until the aforesaid separation is complete, and then removing the lighter oils from the heavier oils (or vice versa), substantially as and for the purposes described.

[NOTE.—Here follow two other claims.]

(Specification, 4s. 3d.)

No. 29014.—18th January, 1911.—EMIL LUDWIG WILHELM GOETTE, of 65 Hodgkinson Street, Clifton Hill, Victoria, Australia, Builder. Improvements in and connected with nose-bags.

Claims.—(1.) In nose-bags for containing provender for horses or other animals, the combination of a bag having its open end secured to two pivotally connected semicircular bands, folding-rods pivotally secured to the ends of one of the said semicircular bands, and clips secured to said folding-rods, substantially as described and for the purposes set forth. . . . (5.) The combination with a nose-bag for