Jan. 10.] THE NEW ZEALAND GAZETTE. 129

No. 20743.—15th February, 1906.—ARTHUR STEELE FORD, of Coromandel, New Zealand, Mechanical Engineer. Improved apparatus for forcing liquid from containers.*

Extract from Specification.—The liquid to be ejected or forced from a cask or other receptacle by connecting the top of the cask or other receptacle with the top of a cylinder charged with carbonic-acid gas or other chemical gas. The pressure is produced by admitting water at the bottom of the cylinder and producing the required pressure to force the liquid when required.

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

(Specification, 2s. ; drawing, 1s.)

No. 20841.—12th March, 1906.—DAVID BOWER, of No. 6 Walker Street, Dunedin, New Zealand, Tinsmith. Improved milk-strainer.*

Claim.—A milk-strainer comprising a body portion provided with an internal cylinder, over which a sheet of filtering fabric is secured by a collar formed with an external annular bead, and having wires fitted across its upper end, another sheet of filtering fabric being secured over the collar by a lid with perforated sides, substantially as described.

(Specification, 1s. 6d. ; drawing, 1s.)

No. 20850.—14th March, 1906.—HARVEY MARSHALL CRIMP, of Strzlecki, Victoria, Australia, Headmaster. Improvements in egg-beaters and the like.*

Claims.—(1.) An egg-beater, comprising a rigid handle (to be reciprocated) made of comparatively stout wire or other rigid material distinct from the member next mentioned, in combination with a compressible coil member, having a guide member extending from its lower end into operative sliding relation with said handle, substantially as described. (2.) An egg-beater, comprising a rigid handle (to be reciprocated) a compressible coil member, and an upwardly extending guiding member arranged as in figure 6, substantially as described. (3.) An egg-beater, comprising a rigid handle (to be reciprocated) consisting of (or having affixed to it) a tube, in combination with a compressible coil, and a member entering the tube, as described relatively to figure 1, or figure 3. (4.) An egg-beater having a rigid doubled wire handle (to be reciprocated), and in engagement therewith a sliding member connected to a compressible coil, all as described relatively to figure 7. (5.) An egg-beater of one or more pieces of wire or suitable material adapted to act substantially as in the case of the beater illustrated in figure 6.

(Specification, 4s. 3d. ; drawing, 1s.)

No. 20852.—14th March, 1906.—JAMES DELAHANTY, of “Roscrea,” Kensington Road, Kensington Park, South Australia, Australia, Insurance Manager. Improvements in rotary engines.*

Extract from Specification.—A rotary engine consisting of an outer casing preferably of slightly elliptical section, within which is rotatably and eccentrically mounted an inner cylinder or drum in such manner that its peripheral surface bears against the outer casing upon one side. The inner cylinder or drum is provided with a sliding piston comprising a heavy plate working shuttle-like in a slot, the said plate having recessed ends provided with adjustable rollers, which engage the outer casing and form a steam-tight connection. On steam or other fluid being introduced into the outer casing it impinges against one of the projecting portions of the sliding plate causing it to rotate and carrying with it the inner cylinder or drum and its shaft. As the cylinder rotates the rollers bearing against the inner surface of the outer casing cause the plate to slide to and fro within the slot, sufficiently to adjust its rollers to the elliptical track provided by the outer casing. A suitable exhaust-port is provided in the outer casing. When adapted for compounding purposes I employ one or more additional outer casings and inner cylinders equipped and operating in a similar manner to the above. These casings and cylinders are preferably arranged and coupled together so as to form a chamber between them for the steam to pass through, when passing from one to the other of the said outer cylinders.

[NOTE.—The above extract from the specification is inserted in place of the claims, and drawings will appear in next Gazette.]

(Specification, 8s. ; drawing, 1s.)

No. 20853.—14th March, 1906.—ALBERT ERNEST THOMAS, of Forrest Street, Coolgardie, Western Australia, Mining Engineer (assignee of John Arthur, of 6 Boulder Road, Kalgoorlie, Western Australia, Engineer). Improvements in rock-drills.*

Claims.—(1.) In a rock-drill, a twist bar, having its head formed with one or more semi-circular recesses, in each of which a correspondingly shaped pawl is adapted to partially rotate, one end of said pawl being arranged to project into engagement with the teeth of an internally toothed ratchet wheel substantially as described, and as illustrated in the drawings. (2.) In a rock-drill, a twist bar, having its head provided with a hole passing transversely through its centre to receive a helical spring, the ends of which are connected to and operate two semi-circular pawls fitting in correspondingly shaped recesses in said head and free to operate in an internally toothed ratchet wheel substantially as described, and as illustrated in figures 2 and 3 of the drawings. (3.) In a rock-drill, a twist bar, having its head fitted with one, two, or more semi-circular pawls, situated diametrically opposite each other, and having a retaining-pin passing longitudinally through their rear ends, said pawls being grooved or recessed at the rear end to receive a helical spring, the ends of which are bent round the retaining-pin in said pawls, substantially as described, and as illustrated in figures 2 and 3 of the drawings.

(Specification, 3s. ; drawing, 1s.)

No. 20929.—30th March, 1906.—GEORGE MOORE, of 44 and 46 Leadenhall Street, London, England, Merchant. Improvements in machinery or apparatus for separating particles of gold or other more or less precious metals or substances from the gangue or material with which they are associated.

Extract from Specification.—The principal feature of novelty in the present invention consists in the combination with an endless travelling belt having side flanges, of a second belt lying within such first belt and between its flanges, which second belt is formed of two layers, an upper layer of burlap and an under layer of wire screens, and is carried in such a manner as to separate if for an interval from the first belt. Other features relate to details of construction in the machine for effecting the working of these belts, and which are hereinafter more fully outlined by the claiming clauses forming part of this specification.

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

(Specification, 9s. ; drawing, 1s.)

No. 21007.—18th April, 1906.—WILLIAM GEORGE MEIN, of 168 Upton Lane, Forest Gate, London, England, Engineer, and ERNEST GAMINARA, of 17 Cranmer Road, Forest Gate, London, Builder. Improvements in or relating to castors for furniture, trucks, trolleys, and the like.

Claims.—(1.) A castor constructed substantially as described. (2.) A castor comprising a centre bearing spindle and a fork stamped or made in one piece, and a frame into which the spindle, which is provided with an annular groove for receiving balls, projects, the said castor being characterised in that the frame is provided with a groove into which it is adapted to take a dished washer or ring which initially holds the balls round the spindle while this is inserted in the frame, and which is finally by means of thickness pieces and a press-block pressed flat, and thereby held in the said groove for holding the spindle and frame together without pins, screws, collars, or the like, substantially as described and shown.

(Specification, 3s. 9d. ; drawing, 1s.)

No. 21008.—18th April, 1906.—INTERNATIONAL TELEGRAPHIC CALL COMPANY, a corporation incorporated, organised, and existing under the laws of the State of West Virginia, United States of America, and having its principal place of business at No. 95 William Street, New York, United States of America (assignees of Edwin Ruthven Gill, of Park Hill, Yonkers, Westchester, New York, United States of America, Electrician.) Improvements in selective signalling apparatus.

Claims.—(1.) A selective mechanism comprising a reversible machine element (such as a ratchet-wheel or sector), impelling means, a retaining device (such as a pawl) for pre-