2160

THE NEW ZEALAND GAZETTE.

[No. 68

material, and is of such formation as would result from bending, pressing, or otherwise shaping a flat piece of such material into an indented arched form having projecting end parts or wings, as more particularly described.

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

(Specification, 8s. 6d.; drawings, 4s.)

No. 21309.-14th June, 1906.-JOSEPH HOPKIRK, of Hawera, New Zealand, Engineer. Improvements in or relating to force and lift pumps.

Claims—(1.) In force and lift pumps, the combination with the cylinder of valves and passages arranged for the alternate admission of the liquid to each end of the cylinder and its ejection therefrom, substantially as described, and as illustrated in the drawings. (2.) In force and lift pumps, the combination with the cylinder of valves and passages arranged for the alternate admission of the liquid to each end of the cylinder and its ejection therefrom, the face of such valves being inclined at an angle outwards towards the bottom edge thereof, substantially as specified. (3.) The improvements in or relating to force and lift pumps, substantially as described and explained, as illustrated in the drawings, and for the several purposes set forth.

(Specification, 4s.; drawing, ls.)

No. 21321.--13th June, 1906.-SAMUEL FRANK WOMERSLEY, of Traralgon, Victoria, Australia, Butter-factory Manager. An improved butter-weighing and packing machine.

Extract from Specification.-The essential feature of the invention is the combination in one machine of a weighing-chamber, an indicating-dial, a descending diaphragm or plunger, and a travelling carriage or tray for the packing-box.

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

(Specification, 3s. 6d.; drawing, ls.)

No. 21324.--15th June, 1906.-JAMES NICHOLSON, of Riverton, New Zealand, Mill-manager. Improved tramway-trolley brake.

Extract from Specification.-The leading feature of my invention is the arrangement of eccentric cams adapted to be operated by a lever to press brake-plates against the sides of the rails.

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

(Specification, 5s.; drawings, 2s.)

No. 21325.—16th June, 1906.-MARK BOWLES, of Auckland, New Zealand, Plumber. Improvements in reaming pipes and tubes.

Claim.-A reamer working inside the end of the tube, and being fed by the female thread of the tool screwing down on the male thread of the pipe, cuts away the burr inside same, leaving a clean bore.

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

No. 21332.--22nd June, 1906.-WENCESLAUS NIKOLSKY, of the Ochta Gunpowder-factory, St. Petersburg, Russia, Colonel. Process and apparatus for distilling off and recovering the solvent used in the manufacture of explosives.

Claims. — (1.) The described process for distilling off and recovering the solvent from freshly prepared “cords” of smokeless powder or similar explosive, which consists in slowly heating the said cords in a closed receptacle while they are enveloped in vapours of the solvent, partly condensing the solvent vapours by artificial cooling and compression, and continually returning the uncondensed vapours to the place where they were generated. (2.) The described apparatus for performing the process specified above comprising a jacketed chest (A) for the reception of powder-cords, a water-heater (F) and pump (k) communicating with the jacket of the said chest, an air-compressor (B) adapted to draw vapours from the interior of the chest at its lower part through a pipe (a), a cooler (C) communicating with the compressor and adapted to condense solvent vapours supplied by the same, and a receiver (D) communicating with the said cooler and with the upper part of the chest, so as to collect the vapours contained in the cooler and to return the uncondensed vapours to the chest. (3.) The improvement in the art of recovering solvents from smokeless gun-powder and similar explosives in the process of manufacture, which consists in slowly heating freshly prepared “cords” of the explosive in a closed receptacle while they are surrounded by vapours of the solvent and regulating the supply or temperature of the heating medium, substantially as described.

(Specification, 10s.; drawings, 3s.)

No. 21354.-26th June, 1906.-HARVEY COALE, of 1511 Guilford Avenue, Baltimore, Maryland, United States of America, Manufacturer. Improvements in the manufacture of artificial cork.

Claims.-(1.) As a new article of manufacture, an artificial, non-porous, tasteless, inodorous cork composed of granules bound together by an insoluble binding-material, substantially as described. (2.) An artificial cork composed of finely divided or granulated cork and binding-material composed of albumen, substantially as described. (3.) The method of making artificial cork consisting in taking granulated cork, mixing therewith a binding-material capable of becoming insoluble in the presence of heat, and finally subjecting the material to heat. (4.) The method of making artificial cork consisting in taking granulated cork, mixing therewith a binding-material, and finally subjecting the composition to a moist heat under pressure to render the binding-material insoluble. (5.) The method of making artificial cork consisting in taking granulated cork, mixing therewith albumen, and subjecting the composition to such heat as will render the albumen insoluble and retain the natural elasticity and flexibility of the cork, substantially as described. (6.) The method of making artificial cork consisting in taking granulated cork, mixing it with albumen, and subjecting the composition to moist heat, substantially as described. (7.) The method of making artificial cork consisting in taking granulated cork, cleansing and purifying the same, adding thereto albumen as a binding-material, subjecting the composition to pressure and to a moist heat whereby the albumen is coagulated and becomes insoluble while the product retains all the elasticity and flexibility of the natural material, substantially as described. (8.) The method of purifying granulated cork or the like consisting in placing the granules in a receptacle, submerging the receptacle in a liquid, and allowing the granules to escape from the receptacle, whereby the granules rise to the surface cleansed and purified while the impurities sink, substantially as described. (9.) The method of purifying granulated cork or the like consisting in placing the granules in a closed receptacle, submerging the receptacle in a bath of purifying or cleansing liquid, and then allowing the granules to escape to the surface, becoming cleansed and purified in their passage and leaving the impurities behind, substantially as described.

(Specification, 7s. 6d.; drawing, ls.)

No. 21355.-26th June, 1906.-PHILIP GEORGE NUERNBERGER and GEORGE RETTIG, Jun., both of 32 South Jefferson Street, Chicago, Illinois, United States of America, Manufacturers. Type-casting machine.

Claims.-(1.) In a type-casting machine, the provision of mould-supporting blocks wherein both blocks may be simultaneously adjusted and wherein one may be adjusted independently of the other. (2.) A matrix-holder which maintains the matrix in an aligned casting-position, together with devices associated with the holder for withdrawing the matrix from the mould on a straight line. (3.) In a matrix-holder as set forth in claim 2, wherein means are provided for retaining the matrix in alignment with reference to the casting-position of the mould, together with means for imparting reciprocating movement to the matrix on a straight line. (4.) In a matrix-holder as set forth in claims 2 and 3, wherein a movable support is provided for the matrix, together with means for imparting reciprocating movement to said support on a straight line. (5.) In a matrix-holder as set forth in claims 2, 3, and 4, wherein the matrix is maintained in position from its under-side by a yielding support which is limited in its upward movement. (6.) A mould-actuating arm for mould-supporting blocks comprising means for operating said arm, and means connecting said arm with one of the mould-blocks to permit limited movement of the arm prior to opening the mould. (7.) A mould-locking arm for mould-blocks comprising a locking.