May 25.] THE NEW ZEALAND GAZETTE. 1037

No. 11621.—12th May, 1899.—ACTIESELSKABET BURMEISTER & WAINS MASKIN OG SKIBSBYGGERI, of Copenhagen, Denmark, Manufacturers (assignees of Oscar Anderson, of Forest Street, Arlington, New Jersey, United States of America, Mechanic). Improvements in centrifugal cream-separators.

Claims.—(1.) The combination with a rotary bowl, and means for rotating the same, of a milk-supply tube, arranged at the centre of the bowl, and imperforate, to deliver all the milk at the bottom thereof; a series of horizontal or outwardly-extending partitions, arranged within the bowl, and fixed to said milk-supply tube, and removable therewith; and the perforated and irregular cylindrical partition arranged outside of said horizontal partitions: all substantially as set forth. (2.) The combination with the rotary bowl, having openings therein for the new milk, cream, and blue milk, and means for rotating said bowl, of a series of partitions arranged within said bowl and forming a vertical series of chambers at or near the centre of the bowl, and a vertical partition arranged outside of and around said chambers within said bowl, the last partition having irregular surfaces, and provided with openings for the cream and blue milk at points in its vertical length closely adjacent to the edges of the first said partitions, all substantially as set forth. (3.) The combination with the rotary bowl, having ducts for the blue milk, cream, and new milk, and means for rotating said bowl, of a central feed-tube g, imperforate, to deliver all the milk at one end of the bowl; partitions m, n, extending outward from said feed-tube; and a cylindrical partition arranged around said partitions m, and provided with blue-milk and cream passages, substantially as set forth. (4.) In a centrifugal creamer, the combination with the bowl a, and means for rotating the same, of a cylindrical partition, comprising a plate having protuberances and opposite corresponding recesses, the protuberances bearing directly upon the bowl and holding the cylinder in place, said protuberances being perforated near their apices and bases to allow of the flow of blue milk and cream therethrough, and leaving blue-milk passages entirely therearound, to allow both a vertical and horizontal flow, substantially as set forth. (5.) In a centrifugal creamer, the combination with the bowl, and means for operating the same, of a cylinder, open at its opposite ends, and having protuberances entirely surrounded by passages for the fluid, to allow a free horizontal and vertical flow, each protuberance being perforated near its point of farthest outward projection, and the cylinder being also perforated at the base of its protuberances, substantially as set forth. (6.) In a centrifugal creamer, the combination with the bowl, and means for operating the same, of a sheet-metal cylinder, with protuberances which do not extend continuously around the periphery of the bowl, said protuberances being stamped or pressed in said cylinder to give the same irregularity of shape, the protuberances leaving passages for the fluid entirely around the same, and having perforations near their apices and bases, substantially as set forth. (7.) In a centrifugal creamer, the combination with the bowl, and means for operating the same, of a sheet-metal cylinder with discontinuous peripheral protuberances on the outside and corresponding recesses on the inside, the protuberances being entirely surrounded with fluid-passages admitting both a horizontal movement of the fluid and a vertical flow as it gradually passes to its exit, said cylinder having perforations for the cream and blue milk, all substantially as set forth. (8.) In a centrifugal creamer, the combination with a rotary bowl, and means for operating the same, of a perforated partition, comprising a piece of impressed sheet-metal turned into a cylindrical form, the impressions due to the stamping forming peripherally discontinuous perforated protuberances on one side of the cylinder and recesses at the other side, the protuberances admitting a vertical flow of fluid between, substantially as set forth. (9.) In a centrifugal creamer, the combination with the bowl, and means for operating the same, of a sheet-metal cylinder with protuberances and perforations, and a frame having partitions forming a vertical series of chambers, the outer edges of the said partition extending out to the inner side of the cylinder at the bases of the protuberances and ducts, whereby the bowl may be supplied with milk at one end, and the cream and blue milk may be separately emitted at the other, substantially as set forth. (10.) In a centrifugal creamer, the combination with the bowl, and means for operating the same, of a sheet-metal cylinder having protuberances and perforations, and a frame comprising an imperforate milk-supply tube, having partitions forming a vertical series of chambers, and a flange on which the said cylinder is seated, substantially as set forth. (11.) In a centrifugal liquid-separator, the combination with the bowl, and means for operating the same, of the milk-supply tube, open to receive the milk at one end of the bowl and to deliver the same at the other, a series of partitions m fastened upon said tube and extending laterally therefrom, and forming chambers therebetween, said chambers having open communication with one another near said milk-supply tube, to allow a flow of cream at the cream-wall, and direct communication of the said milk-tube with said chambers being cut off or closed, to prevent an intermingling of the new milk with the cream of the cream-wall, substantially as set forth. (12.) In a centrifugal separator, the combination with the bowl, and means for operating the same, of the new-milk supply-tube, open to receive the milk at one end of the bowl and to deliver the same at the other, a series of partitions fastened thereto and extending laterally therefrom, forming chambers between, which are open to one another near said tube, to allow a flow of cream at the cream-wall, wings n arranged between said partitions and extending from one to another to strengthen said partitions in their relations to one another, substantially as set forth.
(Specification, 12s.; drawings, 11s.)

F. WALDEGRAVE,
Registrar.

NOTE.—The cost of transcribing the specification, and an estimate of the amount required for copying the drawings, have been inserted after the notice of each application. An order for a copy or copies should be accompanied by a post-office order or postal notes for the cost of copying.

An asterisk (*) denotes the complete specification of an invention for which a provisional specification has been already lodged.

The date of acceptance of each application is given after the number.

Provisional Specifications.

Patent Office,
Wellington, 23rd May, 1899.

APPLICATIONS for Letters Patent, with provisional specifications, have been accepted as under:—
No. 11540.—14th April, 1899.—ANDREW MILLAR LEGGE and ERNEST HENRY CRADDOCK, both of Auckland, New Zealand, Plumbers and Gasfitters. An attachment to meters or gas-fittings to indicate leakage of gas.

No. 11577.—1st May, 1899.—CHARLES BOOCOCK, of 183, Hereford Street, Christchurch, New Zealand, Tanner. An improved liquid for use in chrome tanning, and process for producing same.

No. 11578.—3rd May, 1899.—JOSEPH MORAN, of Palmerston North, New Zealand, Bootmaker. An improved boot or shoe making and repairing last.

No. 11584.—3rd May, 1899.—JOHN REES, of 137, Fenwick Street, North Carlton, Victoria, Engineer, and JOHN WREN, of 35, Ballarat Street, Collingwood, Victoria, Financier. Improvements in and connected with fans and their motors, and message-boxes on the air-pipes therefrom.

No. 11596.—5th May, 1899.—WILLIAM JOSEPH ROEBUCK, of Dunedin, New Zealand, Dredging Engineer. An improvement in revolving gold-saving screens.

No. 11598.—8th May, 1899.—MATTHEW GAWTHORP HEELES, of 54, Lambton Quay, Wellington, New Zealand, Manager of Company. Improvement in blanketing for gold-saving.

No. 11599.—4th May, 1899.—GEORGE BALLARD, of Buckland, Auckland, New Zealand, Farmer. A spring-tooth subsoiling attachment to ploughs.

No. 11601.—8th May, 1899.—JOSEPH EDWARD NEWTON, of 183, Hereford Street, Christchurch, New Zealand, Meat-preserver. Improved preserving-retort.

No. 11603.—10th May, 1899.—CHARLES LAFFERTY, of Hill’s Road, St. Albans, Canterbury, New Zealand, Bootmaker. Improved bottom-wash for the soles of boots, shoes, and slippers.

No. 11604.—9th May, 1899.—DANIEL McKAY, of Rangiora, Canterbury, New Zealand, Tinsmith. An adjustable strainer for milkpail.

No. 11606.—11th May, 1899.—PETER BRY, of Talbot, Victoria, Cooper, &c. Improvements in rotatable barrels or vats, for agitating finely divided ores and sludge in the presence of mercury, or cyanide or other solutions.

No. 11612.—11th May, 1899.—LOUIS THURNAUER, of Cromwell Buildings, 366, Bourke Street, Melbourne, Victoria, Merchant, but late of 83, Farringdon Road, London, England (nominee of Max Graetz, of 36, Lausitzerstrasse, 31, Berlin, Germany, Lamp-manufacturer). Improvements in and connected with acetylene-generators.

No. 11615.—12th May, 1899.—CHARLES FELTON SCOTT, of 6214, Sellers Street, Pittsburg, Pennsylvania, United States of America, Electrical Engineer. Improvements in systems of electrical distribution.

No. 11616.—12th May, 1899.—WILLIAM ABRAHAM SHORE, of 2, Commercial Chambers, Manse Street, Dunedin, New Zealand, Dredge-master. An improved gold-saving mat.

No. 11617.—12th May, 1899.—ROBERT HANITCH HASSLER, of 536, Illinois Street North, Indianapolis, Indiana, United States of America, Electrical Engineer. Improvements in speed-varying devices, and electric motors for use therein.