Sept. 21.] THE NEW ZEALAND GAZETTE. 2313

end to a revolvable drum mounted on the frame and passing around a guide-sheave of the gantry, around the sheave of one connecting-rod, and around a guide-sheave at the top of the derrick, a monkey secured to the other end of the rope and provided with a hole, another lifting-rope secured at one end to another revolvable drum and passing around a guide-sheave of the gantry, around the sheave of the other connecting-rod, and around a guide-sheave at the top of the derrick, a shackle secured to the other end of the rope, boring-rods attached to the shackle and passing through the monkey, substantially as set forth.

“ (4.) In apparatus for the purpose indicated, in combination, a frame, bearings secured to the frame, a shaft journalled in the bearings, means for revolving the shaft, a disc fixed upon each end of the shaft, a lever journalled upon each end of the shaft, collars retaining the levers on the shaft, projections upon the disc adapted to engage the levers, and means for connecting the lifting-ropes of a monkey and of boring-rods to the levers, substantially as set forth.

“ (5.) Apparatus for the purpose indicated characterized by comprising among its parts revolving discs having projections which engage and revolve two levers alternately through a portion of a circle in order to raise and then release a monkey and boring-rods alternately, substantially as set forth.

“ (6.) The combination and arrangement of parts, comprising the double-action well-driver, substantially as and for the purposes set forth herein, and illustrated on the accompanying drawings.”

The applicant states:—My reasons for making this amendment are as follows: I desire to more clearly explain the invention and define the scope of the claims.

No. 19086.—13th February, 1905.—Richard Wingfield Stuart, of Sydney, New South Wales. Carburetting air and producing combustible gas. (Advertised in Supplement to New Zealand Gazette No. 22, of the 9th March, 1905.)

The nature of the proposed amendments is as follows:—

(1.) To insert the following sentences after the word “statement,” line 15, page 1, of specification: “This invention relates to an improved combination of apparatus whereby air may be carburetted and a combustible gas for heating or lighting purposes produced. The invention consists in the combination of apparatus whereby air may be drawn from the atmosphere and forced under pressure through a heating-chamber, from which it passes, a portion of it being sent through a carburetter of peculiar form so as to be converted into gas and then reunited and mixed with the remainder of the air before passing to the burners for consumption. The heated air is also employed to heat the hydro-carbon oil within the carburetter so as to render it more easily volatilisable by contact with the hot air passing through the carburetter.”

(2.) To insert after the paragraph ending “burners for consumption,” line 28, page 4, the following: “I am aware that apparatus for the generation of hydro-carbon gas has already been employed in which hot air is sent under pressure through a carburetter and mixed with a further quantity of hot air before passing to the burners for consumption, and I wish it to be understood that I do not desire to claim as my invention the use of apparatus of any form by means of which the air may be compressed, then heated, and afterwards treated in the manner herein set out for the production of gas, but.”

(3.) To strike out claims 1, 2, 3, and 4, and to insert the following as the first claim: “(1.) In apparatus for carburetting air, in combination, a motor, a bellows adapted to be worked by the motor, a hot-air chamber into which the air from the bellows will be forced, a carburetting-chamber in communication with the hot-air chamber and with a pipe leading away from such hot-air chamber, a revolving drum or drums mounted within the carburetter dipping into the petrol contained therein, a liquid-proof false bottom to the carburetter, an air-chamber below the false bottom, and means for supplying hot air to the chamber beneath the carburetter and for supplying petrol to the carburetter, as herein specified.”

(4.) To number claim “5” as claim “2.” The applicant states: “My reason for desiring to make the amendments is that since applying for the patent it has come to my knowledge that the matter covered by certain of the claims is old, and I accordingly desire to restrict the specification and claims so as to confine them to what is novel.”

F. WALDEGRAVE,
Registrar.

Request to amend Specification allowed.

THE request to amend specification No. 17982—Brown and McMiken—material-circulator (advertised in Supplement to New Zealand Gazette No. 57, of the 15th June, 1905)—has been allowed.

Applications for Letters Patent abandoned.

LIST of applications, with which provisional specifications only have been filed, abandoned (i.e., complete specifications not lodged), from the 7th September to the 20th September, 1905, inclusive:—

No. 18713.—F. W. Maddox, broom.
No. 18715.—R. F. Thomas and S. A. Bradley, fruit-case.
No. 18716.—J. Herrick, floor-washer.
No. 18717.—A. Dyke, lifting-jack.
No. 18718.—A. Dyke, trace-holder for swingletree.
No. 18719.—A. Dyke, rein-holder for vehicle.
No. 18726.—P. Henley, hose-coupling.
No. 18728.—H. Dicke, generating gas.
No. 18729.—J. T. Hunter, water-gas production (C. Dellwik).
No. 18732.—F. Cooper, tip road-wagon.
No. 18733.—D. McCallum, bacon, &c., curing mixture.
No. 18734.—W. G. Cloke, ironsand-furnace.
No. 18735.—W. E. Searle and W. Gibb, vehicle-seat slides.
No. 18738.—J. H. T. Turnbull, fire-lighter.
No. 18741.—H. A. de Lautour, bowl-testing machine.
No. 18744.—H. W. Candy, tug-stop for vehicle-shafts.
No. 18747.—A. H. Byron, smoke-consumer and feeder for furnace.
No. 18748.—A. H. R. Allen and H. S. Darby, metal-finishing process and product.
No. 18750.—A. McKay, excavating and elevating wash-dirt.
No. 18756.—C. Lashlie, coat and trouser hanger.
No. 18759.—R. McKay, truck.
No. 18760.—W. Sim, oil-gas.
No. 18761.—P. A. S. Stephens, boot-cleaning machine.
No. 18762.—H. Ashworth, arrival and departure indicator.
No. 18763.—W. Sinclair, draught-regulator.
No. 18764.—J. F. Wilson, friction-clutch.
No. 18765.—W. S. Campbell, blight-destroyer.
No. 18766.—T. W. May, steam-exhaust for rotary turbine.
No. 18768.—W. E. Toxward and D. G. Monrad, milk-stirrer.
No. 18771.—J. Orr, jun., conveying sheaves from stack to thresher.
No. 18777.—J. Paterson and A. T. W. Allan, gold-saving.
No. 18778.—R. Cosslett, building-appliance.
No. 18779.—W. M. Pritchard, J. S. Boyle, and W. White, boot sole and upper.
18780.—J. H. Toner, vehicle-seat.

Applications for Letters Patent void.

APPLICATIONS for Letters Patent, with which complete specifications have been lodged, void, owing to non-acceptance of such complete specifications, from the 7th September to the 20th September, 1905, inclusive:—

No. 18022.—A. O. P. Batley, legging-fastening.
No. 18040.—J. K. Hay, clothes-horse.

Applications for Letters Patent lapsed.

LIST of applications lapsed, owing to Letters Patent not being sealed, from the 7th September to the 20th September, 1905, inclusive:—

No. 17631.—W. S. Cobham, railway wheels and axles.
No. 17646.—J. T. Prince, whiffletree.
No. 17647.—N. Wilson, jun., and M. I. Worsley, chair-seat.
No. 17648.—A. W. Topffer, runaway-horse release.
No. 17675.—S. Day, securing broom-handle in socket.

Letters Patent void.

LETTERS Patent void through non-payment of renewal fees, and through expiry of term of fourteen years, from the 7th September to the 20th September, 1905, inclusive:—

THROUGH NON-PAYMENT OF SECOND-TERM FEES.

No. 13694.—R. Millar, wave-motor.
No. 13695.—H. S. Woolley, furnace.
No. 13700.—C. Miller, camera-slide.
No. 13704.—J. C. Barnes, sheep-shears.
No. 13705.—E. Shadgett, boot-polish.
No. 13708.—P. V. S. Martin, G. Soldani, and L. B. Trant, tanning process.
No. 13709.—The Cosmopolitan Power Company, condensing steam. (G. G. Turri—Cosmopolitan Power Company—T. M. Colwell.)