Jan. 27.] THE NEW ZEALAND GAZETTE. 373

No. 27071.—21st December, 1909.—JOHN CHARLES BARKER, of Cabinet Chambers, Basinghall Street, Leeds, England, Engineer. Improvements in furnaces for melting metals, and for like purposes.

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Claims.—(1.) In a furnace for melting wrought iron or for like purposes in which the air-blast for inducing the necessary current for such furnace is preheated, the combination with a chamber or chambers formed in the wall or walls of the ash-pit beneath the furnace-grate, through which the air-blast is caused to traverse, of a casing situated within the ash-pit immediately below the furnace-grate, forming an additional heating-chamber for superheating the air-blast, said casing being connected directly to the ash-pit air-inlets, and being adapted to deliver the superheated air to beneath the furnace-grate. (2.) In a furnace for melting wrought iron or for like furnaces provided with means for superheating the air-blast supplied to beneath the furnace-grate according to claim 1, connecting the casing forming the superheating-chamber to the ash-pit inlets by means of side tubes, and delivering the superheated air from the said casing to beneath the grate by means of a central depending tube, substantially as described with reference to the drawings.

(Specification, 4s. 6d.)

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No. 27073.—21st December, 1909.—JOSEPH BAMFORD, of St. Mary’s Mount, Uttoxeter, Stafford, England, Engineer. Improvements in potato-digging machines.

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Extract from Specification.—A novel arrangement of mechanism for controlling the action of the tines or forks, the latter being operated by cranks or epicyclic gearing. The said tines or forks are arranged on the outside of, or the ends of, the controlling-mechanism, on either side or both sides of the said disc or discs, and are furthermore arranged in combination with a share or shares for digging under the potatoes.

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

(Specification, 5s.)

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No. 27079.—21st December, 1909.—JONATHAN HOLDEN MORRISON, of Whetukura, Ormondville, Hawke’s Bay, New Zealand, Sheep-farmer. Improvements in sheep-shear-driving gear.

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Claims.—(1.) In sheep-shear-driving gear, an overhead supporting-bracket adapted to be secured to a beam formed with a T-shaped outer end, in combination with a bearing upon the inner end of the bracket, a main driving-shaft journalled therein, a saddle-frame slidably mounted on the outer end of the bracket, a shaft carried in such frame, a pulley-wheel loosely mounted on the shaft, clutch mechanism for locking the shaft and wheel together, a driving-pulley upon the main shaft, and a driving-belt connection between the two pulleys, substantially as specified. (2.) In sheep-shear-driving gear, an overhead supporting-bracket adapted to be secured to a beam, and formed with a T-shaped outer end, in combination with a saddle-frame slidably mounted upon such outer end, and having means for locking it thereto, a shaft carried in such frame, a pulley loosely mounted on the shaft, means for conveying rotation to such pulley, fork-arms engaging with the respective outer faces of the pulley, an eccentric cam fitted between such arms, and a lever for actuating the cam, substantially as specified. (3.) In sheep-shear-driving gear, an overhead bracket adapted to be secured to a beam, and formed with a T-shaped outer end, and with a lug on its inner end overlying the beam, a set-screw passing through such lug and bearing upon the beam, a bearing supported upon the inner end of the bracket, a main driving-shaft journalled in the bearing, a saddle-frame slidably mounted upon the outer end of the bracket, gear for operating the shear carried in such frame, and means for imparting the motion of the main driving-shaft to such gear, substantially as specified. (4.) The general arrangement, construction, and combination of parts in my improvements in sheep-shear-driving gear, substantially as described and explained, as illustrated in the drawings, and for the several purposes set forth.

(Specification, 5s.)

No. 27082.—22nd December, 1909.—FRANK ERNEST WATLING, of 172 Queen Street, Auckland, New Zealand, Publicity Expert and Journalist. A new or improved plate-lift.

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Extract from Specification.—A ring made of a band of cardboard, wood, aluminium, celluloid, tinplate, or similar suitable material has a width sufficient to separate a plate from a plate immediately above or below for a distance which will prevent an upper plate from touching the contents of the lower plate. The ring is made circular or oval, and has adjusting means whereby it may be adapted to fit plates or dishes of various sizes.

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

(Specification, 2s.)

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No. 27090.—24th December, 1909.—DAVID PRINGLE PALMER, of 248 Manchester Street, Christchurch, New Zealand. An improved adjustable folding-chair.

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Claims.—(1.) In a chair of the kind described, the employment of ratchet discs secured in pairs with opposing teeth, and between side members of the chair-back and the arms of the chair, and means for clamping the discs together, substantially as set forth. (2.) In a chair of the kind described, the employment with ratchet discs referred to in claim 1 of a bolt having a lever-cam pivoted at one end thereof, substantially as set forth. (3.) In a chair of the kind described, the employment with ratchet discs referred to in claim 1, and a bolt referred to in claim 2, of a cam pivoted upon one end of the bolt and a nut screwed upon the other end, substantially as set forth. (4.) The combination and arrangement of parts comprising the improved adjustable folding chair, substantially as and for the purposes set forth, and illustrated in the drawing.

(Specification, 2s. 6d.)

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No. 27098.—29th December, 1909.—ERNEST WRIGHT, Engineer, of St. Mary’s Cottage, Waxwell Lane, Pinner, Middlesex, England. Improvements in machines for decorticating the fibrous leaves or stems of plants.

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Claim.—In machines for decorticating the fibrous leaves or stems of plants, the employment of tracks or guides at the ends of the drum for receiving and carrying the strips used for cleaning the pins on the drum and lifting the fibre from the pins, said tracks being mounted eccentrically, and adjustable or not, and revolving with the drum so that the cleaning and lifting strips move about the pins at certain parts of the travel of the drum and tracks, substantially as described and illustrated.

(Specification, 7s. 6d.)

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No. 27099.—23rd December, 1909.—ERASTUS STEPHEN BENNETT and ELMER ELLSWORTH BURLINGAME, both of 52 Broadway, New York City, New York, United States of America, Engineer and Broker respectively. Screw pumps.

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Extract from Specification.—The invention is a pump of the screw form, and is characterized by the employment within the pump of a diaphragm or diaphragms having openings for the passage of the water, tapering from the inlet to the outlet sides of the same, presenting shoulders or flat surfaces on the outlet sides to form back-stops for the water to prevent back pressure, the said diaphragms being formed of inner and outer rings connected by spokes which present knife-edges on the inlet sides, the blades of the screw working closely against the said diaphragms, and said diaphragms being held preferably in recesses formed between sections of the cylinder. The invention is also characterized by a double form of screw-bladed piston working in conjunction with a plurality of inlets and outlets.

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

(Specification, 9s.)

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No. 27100.—23rd December, 1909.—VICKERS SONS AND MAXIM, LIMITED, of 32 Victoria Street, Westminster, in the County of London, England (assignees of John Taylor Peddie, of Caxton House, Tothill Street, Westminster, in the County of London, England, Manager). Improvements in or relating to sighting-devices.