Dec. 11.] THE NEW ZEALAND GAZETTE. 2687

said reservoir, a pipe leading from said reservoir to the interior of a carburettor, said pipe having in its bottom serrations or up-cuts, a tap on said pipe, said carburettor having an air-distributing box in the interior of the same, a filling, a strainer, a pipe leading to said air-box having a tap thereon, said pipe conveying air from an air-holder, said air-holder being lifted by weights passing over pulleys and depressed by gravity and the said weights, the lower end of said air-holder being immersed in a water-tank; a gas-discharge pipe communicates with the interior of the said strainer, said pipe having a tap thereon, all as and for the purposes described, and as illustrated in the drawings.
(Specification, 3s.; drawings, 1s.)

15707.—2nd December, 1902.—WILLIAM YEATES HUNTER, Captain 2nd Battalion, The King’s (Liverpool) Regiment, presently stationed at Middelburg, Transvaal. Improvements in the construction of tents and their valise accessories.

Claims.—(1.) The application, by means of sleeves, straps, or the like, of compass or other suitable poles to tents, substantially and as for the purposes set forth. (2.) The method of converting tents of a shape similar to that illustrated in Fig. I. of the drawings, with or without a floor, into pack-bags, substantially as set forth. (3.) The valise accessory for tents, adapted to hold and protect the same, and also other additional matter, and capable of being packed and carried in the manner described, and illustrated in the drawings.
(Specification, 3s. 9d.; drawings, 1s.)

No. 15716.—4th December, 1902.—HENRY CHRISTIAN STORTENBEKER, Carpenter, and SAMUEL JOSEPH COWAN, Miner, both of Tingha, New England, New South Wales. An improved machine for starting horse-races.

Claim.—An improved machine for starting horse-races, consisting of a pair of short posts, having steel runners extending from the top thereof in the upward and forward direction, and converging towards the centre of the course, one of the said runners having a short portion immediately above the post which does not converge; an indiarubber or other elastic belt secured to and terminating with a pair of grooved wheels adapted to engage the said runners, and a catch pivotally attached to one of the said posts, all for the purpose and substantially as described, and illustrated in the drawings.
(Specification, 2s. 3d.; drawings, 1s.)

No. 15718.—4th December, 1902.—EDWARD WATERS, Jun., a member of the firm of Edward Waters and Son, Patent Agents, 414-418, Collins Street, Melbourne, Victoria, Australia (nominee of Arthur Blanchard, of 317, Great College Street, Camden Town, London, England, Engineer). Improvements in or relating to liquid-hydrocarbon-vapour burners.

Extract from Specification.—This invention relates to hydrocarbon-vapour burners designed for consuming ordinary petroleum or similar hydrocarbons (particularly applicable for hydrocarbons of high flash-point) supplied under pressure, and burning with a non-luminous or Bunsen flame, and in which carbon-deposits are prevented from collecting in suchwise as to interfere with the action of the burner, and has for its especial object to prevent said carbon-deposits collecting in the jet-orifice of such burners; this burner being especially adapted and applicable for use in conjunction with incandescence mantles (of the well-known Weisbach type or other suitable mantles) for lighting purposes. Heretofore, it is well known that hydrocarbon-vapour burners have been designed especially for use in conjunction with incandescence mantles for lighting purposes; but many drawbacks have been found in such burners, particularly in the clogging of the jet-orifice by carbon-deposits, and attempts have been made to prevent such drawback by means of filtering or straining devices, but this by itself will not prevent such clogging, or only very slightly diminish same. In such burners as heretofore constructed the deposit of carbon is, or appears to be, owing to the vapour being unevenly heated; as in such case, where the more highly heated vapour meets and mingles with cooler vapour thereby particles of carbon are formed and are carried forward with the vapour and deposited therefrom, and such deposits soon clog the jet-orifice, as well as tending to clog other parts of the pipes or conduits through which such vapours are led. Now, when hydrocarbon vapour is heated it decomposes and deposits carbon, and I have found that this decomposition continues while the temperature is rising, but if after a sufficiently high temperature of the vapour is attained—i.e., a tem-

perature sufficiently high for the purpose of such burner—it is slightly cooled, then, provided the vapour has been evenly heated throughout, the decomposition ceases and no further deposit of carbon takes place from such vapour; and this discovery I utilise as follows: I apply the maximum amount of heat to the hydrocarbon vapour while the latter is in the presence of and is ascending through a permeable heat-conducting material in a vertically disposed superheating-chamber, which is centrally located in the flame of the burner so that the upper part of said vertical chamber is completely enveloped in said flame in suchwise that such vertical chamber is evenly heated all round, so as to thereby evenly superheat the whole of said vapour, and applying the maximum amount of heat to said vapour while the latter is still in the presence of the said permeable heat-conducting material; and I then conduct such evenly superheated vapour to the jet-orifice in suchwise that no further decomposition of the superheated vapour takes place from the point where the latter has received the maximum heat and emerged from said permeable heat-conducting material; and for this purpose I interpose a chamber between the point of such maximum heat and the jet-orifice, this interposed chamber being advantageously a filtering-chamber, so that said superheated vapour will be filtered after decomposition of the said vapour has ceased and before same reaches the jet-orifice; and by this means I keep the passage clear through said jet-orifice and insure the correct working of the burner, continuously or for a prolonged period.

[NOTE.—The number and length of the claims in this case preclude them from being printed, and the foregoing extract from the descriptive part of the specification is inserted instead.]
(Specification, 16s.; drawings, 2s.)

F. WALDEGRAVE,
Registrar.

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

NOTE.—The cost of copying the specification and drawings has 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 note for the cost of copying.

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

Provisional Specifications.

Patent Office,
Wellington, 10th December, 1902.

APPLICATIONS for Letters Patent, with provisional specifications, have been accepted as under:—
No. 15097.—10th July, 1902.—JAMES SHEPHERD, of 14, Crawford Street, Dunedin, New Zealand, Engineer. Improvements in dredging machinery.
No. 15435.—24th September, 1902.—THE COLONIAL AMMUNITION COMPANY, LIMITED, of Auckland, New Zealand (nominees of Arthur Cecil Whitney, of Auckland aforesaid). An improved wad for use in ammunition-loading.
No. 15671.—22nd November, 1902.—WILLIAM LORIGAN, of Trocadero Hotel, Wellington, New Zealand, Gentleman. Improvements relating to certificates employed for co-operative trading purposes and the like.
No. 15672.—22nd November, 1902.—GEORGE CROLL, of Christchurch, New Zealand, Consulting Engineer. An improved life-saving raft.
No. 15673.—24th November, 1902.—RICHARD HARRISON, of Daniel Street, Newtown, Wellington, New Zealand, Ironworker. Improved plug, brick, and hæmatite concrete.
No. 15674.—24th November, 1902.—THOMAS RICHARD PORTER, of Wellington, New Zealand, Maori Teacher. An improved bicycle handle-grip.
No. 15675.—19th November, 1902.—CHARLES WILLIAM CONSTABLE, of Beach Street, Queenstown, New Zealand, Painter. A rabbit-trap.
No. 15676.—19th November, 1902.—DAVID LANDSBOROUGH COCHRANE, of Otahuhu, Auckland, New Zealand, Contractor. Dray scoop.
No. 15677.—25th November, 1902.—FRANK FOSTER COULSELL, LANE BRADFORD COULSELL, ALFRED CHARLES COULSELL, HARRY WILLIAM COULSELL, all of 29, Courtney Street, North Melbourne, Victoria, Engineers and Boiler-makers. Improvements in vertical multitubular water-column boilers.
No. 15679.—22nd November, 1902.—JOSHUA THOMAS NOBLE ANDERSON, of the Drainage Board, Town Hall, Dunedin, New Zealand, Chief Engineer. Improved detritus- and sewage-treating tank, elevator, and cleanser.
No. 15681.—26th November, 1902.—ERNEST SMITH BALDWIN and HENRIE HAMPTON RAYWARD, carrying on business as “Baldwin and Rayward,” of National Chambers, Grey Street, Wellington, New Zealand, Patent Agents (nominees