Oct. 18.] THE NEW ZEALAND GAZETTE. 2785

No. 21671.—21st August, 1906.—EDWARD CHURTON POWELL, Wharfinger, CHRISTOPHER MACARTHUR, Engineer, and FRANK SMITH, Engineer, all of 39 Lombard Street, London, England. Improvements in and relating to rotary engines.

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Claims.—(1.) A rotary engine having two cylindrical chambers intersecting one another, one being the working-chamber and the other the abutment chamber, a cylindrical extension on each side wall of the working-chamber projecting inwards, a cylindrical support or disc carrying a vane or vanes disposed between the cylindrical extensions within the working-chamber, a cylindrical abutment of the same diameter as the vane-support having a recess or recesses to allow the vane or vanes to pass the said abutment, a port in the cylindrical abutment opening into the recess, a hollow trunnion or other support for carrying the cylindrical abutment, means for the admission of steam through the hollow trunnion to the working-chamber and for the exhaust of the same therefrom, substantially as described. (2.) In a rotary engine with two cylindrical chambers intersecting one another, a cylindrical support carrying a vane, a cylindrical abutment with a recess adapted to roll on the said cylindrical support, a port in the said recess, the arrangement of a ported trunnion for carrying the abutment adapted to support an internal sleeve provided with a port or ports and a cutting-off device projecting into and co-acting with the port in the cylindrical abutment, so as to vary the point of cut-off of the steam, substantially as described. (3.) The arrangement and construction of a rotary engine, substantially as described and illustrated in the drawings.

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

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No. 21698.—28th August, 1906.—JOHN GILL, of Beechwood Mains, Murrayfield, Edinburgh, Scotland, Gentleman. Improvements in rotary motive power engines, applicable also to rotary pumps, air or gas blowers, compressors or exhausters, meters, and the like.

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Claims.—(1.) A rotary engine, pump, or the like, of the kind referred to, having its outer casing formed with an internal surface composed of two opposite circular arcs and two opposite involute curves, the said involute curves being such as are struck or traced, substantially as described. (2.) A rotary engine, pump, or the like, of the kind referred to, having its outer casing so constructed with two opposite involute curves and two opposite circular arcs that all diametral lines drawn through the centre of the axis of the drum from side to side of the casing are equal in length, substantially as described. (3.) In a rotary engine, pump, or the like, of the kind referred to, the combination with the rotating drum of a sliding piston-plate t made in two parts, having distance-rods u between them, by means of which the outer edges of the said plates are continually in contact with the inner surfaces of the outer casing, substantially as described.

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

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No. 21700.—28th August, 1906.—EMIL DEISTER, of 1415 Webster Street, Fort Wayne, Indiana, United States of America, Mechanic. Driving mechanism for ore-concentrators.

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Claims.—(1.) In driving mechanism for ore-concentrators, an oscillating lever having means in connection therewith to actuate the same, and having also a driving-head; a driving-rod extending movably through the head, and having a threaded sleeve fixed thereon; a buffer secured to the rod, and acting against the head upon the side thereof opposite the sleeve; a check-spring interposed between the sleeve and adjacent face of the head; an adjustable collar in connection with the sleeve; and an adjusting spring interposed between the head and adjacent end of the collar. (2.) An oscillating lever with a driving-head in movable connection with a driving-rod; a check-spring having connection with the driving-rod and acting against one face of the head; a buffer adjustably mounted on the rod, acting against the opposite side of the head; and an adjusting spring acting against the head coincidently with the check-spring and having adjustable connection with the driving-rod independent of the check-spring. (3.) In driving mechanism for ore-concentrators, an oscillating lever; a pitman suitably driven and having a cross-head adjustably seated against the lever; a spring in adjustable connection with the pitman, which acts against said lever oppositely to said cross-head, and holds the latter in seated position. (4.) The improved driving mechanism for ore-concentrators, having its parts constructed, arranged, and combined to operate substantially as described with reference to the drawings.

(Specifications, 6s.; drawing, 1s.)

No. 21707.—28th August, 1906.—ALEXANDER PARKER, of Dannevirke, New Zealand, Farmer. An improved machine for vending postage stamps and the like.

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Extract from Specification.—The invention consists in means adapted to be placed in a position for operation by the insertion of a coin in a slot whereby the end of a continuous strip of stamps may be fed forward over an opening in a casing for a distance approximating to the length or width of the stamp, and will then be severed by a cutter so as to fall through such opening. Provision is made for any but the proper coin for operating the mechanism being ejected from the machine, and other details for the satisfactory operation thereof will be fully referred to.

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

(Specification, 11s. 6d.; drawings, 2s.)

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No. 21711.—29th August, 1906.—WALTER THORBURN, of Seattle, Washington, United States of America. An improved instrument for levelling and projecting angles.

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Extract from Specification.—The object of the invention is to provide an instrument embodying a level and so arranged that a reflection from the level is cast upon a reflecting surface within the instrument in a line to coincide with the horizontal line of the object-glass. A further object of the invention is to provide an instrument having an angularly disposed reflecting surface arranged to receive rays of light from an object at one side of the instrument, the image of which will be combined with the object seen in direct line through the object-glass in front. A further object of the invention is to provide, in an instrument of the class described, a reflecting surface provided with improved means for varying the angularity and position of the reflector. A further object of the invention is to provide, in an instrument of the class described, a plurality of levels, one of which is arranged to determine the horizontal position of the main sight-tube, and the other arranged to determine the horizontal position of the branch sight-tube arranged to determine the horizontal position of the branch sight-tube arranged to project an angle.

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

(Specification, 14s.; drawing, 1s.)

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No. 21715.—29th August, 1906.—EVAN THOMAS MUNRO and JOHN ALEXANDER MUNRO, both of Peart Street, Leongatha, Victoria, Australia, Blacksmiths, and DANIEL JOHN CHANDLER, of No. 247 Brunswick Street, Fitzroy, near Melbourne, Victoria aforesaid, Merchant. An improved tool for branding horses, cattle, sheep, and other animals.

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Claim.—An improved adjustable branding-tool, consisting of a slotted frame or holder on the end of a handle, letters, numerals, or devices having shanks to extend through the slot in said frame, and tapered keys or wedges passing through the shanks and bearing against the rear face of the frame, substantially as described.

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

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No. 21719.—27th August, 1906.—PHILIP PRICE, SIMON HILL, ALLEN TAYLOR, ARTHUR MCELHONE, WILLIAM PERCY MCELHONE, and HORACE SEYMOUR BRACY, trading as the Acme Manufacturing Company, of Pyrmont, Sydney, New South Wales, Australia, Nail-manufacturers. Improved nail-making machine.

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Claims.—(1.) In nail-making machines, the feeding appliance, consisting of compound levers initially controlled from the main shaft and operating an inverted T piece which overlies a sliding block over which the wire passes, the T piece carrying an adjustable chisel-shaped tool between which and the sliding block the wire is gripped and an adjusting screw, the whole being adapted to feed forward a predetermined length of wire as raw material of which the nail is to be formed, as specified. (2.) In nail-making machines, the feeding appliance as set forth in claim 1 in combination with a heading die, operated directly from the crank on the main shaft of the machine as set forth. (3.) In nail-making machines, the feeding appliance as set forth in claim 1 in combination with a heading die, operated directly from the crank on the main shaft of the machine, and with gripping devices for gripping the wire as it enters the machine, and with pointing and cutting-off dies that are operated in one direction by sliding blocks with inclined ends, which are actuated by coins or eccentrics on the main shaft of the machine, and in the other direction by springs adapted to return the parts to their normal positions as and for the pur-