SEPT. 17.] THE NEW ZEALAND GAZETTE. 2081

forth. (5.) In the manufacture of illuminating-gas from coal, the combination with a vertical retort of a hopper having a cylindrical extension, a vertically reciprocating coal-measuring and gas-sealing device in the cylinder, such device being so formed as to direct the falling coal outwards towards the walls of the retort, substantially as described, and illustrated in the drawings.
(Specification, 5s. 6d. ; drawing, 2s.)

No. 16750.—5th August, 1903.—THOMAS CHANNON MILLSOM, of 67, Octavia Street, St. Kilda, Victoria, Ear Specialist. A composition and dissolvent for the cure of deafness.

Claim.—A composition and dissolvent for the cure of deafness, consisting of kerosene oil, oil of sweet almonds, camphor, and vegetable essential oil, in approximate proportions specified.
(Specification, 1s.)

No. 16823.—20th August, 1903.—THOMAS MCDONOUGH, of 41, Griffith Street, Richmond Bourke, Victoria, Draper. An improved oil-lamp, with air-tube and automatic extinguisher.

Claims.—(1.) In an improved oil-lamp with air-tube and automatic extinguisher, the tube a¹ with its lower end perforated, in combination with the coiled spring f, which acts automatically in bringing down the extinguisher d on lighted wick when the lamp is accidentally upset, substantially as described and shown. (2.) In an improved oil-lamp with air-tube and automatic extinguisher, the shoulder d which acts as an extinguisher, the button g, with small spiral spring attached, which prevents the descent of air-tube, and the consequent extinction of light when the lamp is raised from the table, substantially as described and shown. (3.) In an improved oil-lamp with air-tube and automatic extinguisher, the combination and arrangement of parts forming an improved oil-lamp, with air-tube and automatic extinguisher, by which on being upset the light is instantaneously put out, substantially as described, and illustrated in the drawing by Figs. 1 and 2, as and for the purpose set forth.
(Specification, 2s. 3d. ; drawing, 1s.)

No. 16824.—17th August, 1903.—JULIUS FREDRICK WILLIAM HENRY SCHADICK, of Westport, New Zealand, Borough Engineer. An improved valve for high-pressure taps, stopcocks, and sluices.

Claims.—A valve having a semi-spherical or conical head fixed to a tubular shaft with side openings; the tubular shaft is connected to a revolvable screw-spindle with two metal nuts.
(Specification, 1s. ; drawing, 1s.)

No. 16825.—20th August, 1903.—WILLIAM EDWARD HOLDERMAN, of Marysvale, Pi Ute, Utah, United States of America, Gentleman. Improvements in devices for treating slimes of mineral-bearing quartz.

Claims.—(1.) A leaching-tank comprising a liquid-tight case, a discharge-pipe in its bottom, an inclined floor in said case, spaced cleats on said floor and the sides of the case, a filtering-fabric covering said cleats and overlapping the upper edge of the tank, a moulding to hold the fabric in operative position, and pipes provided with stoppers leading from the filter out through said case, as described. (2.) In a filtering-tank, a filtering-partition extending across said tank, and a trough in its lower edge for the filtrate, as described. (3.) In a filtering-tank having vertical cleats covered with a filtering-fabric, a filtering partition extending across said tank, a trough in its bottom for the filtrate, and an orifice through the filtering of said tank into which the filtrate from said trough is discharged. (4.) In a filtering-tank having vertical cleats covered with a filtering-fabric, a filtering-partition across said tank composed of rails h,h, at its top, rails h¹,h¹, at its bottom, vertical-spaced slats whose ends are held between said rails, a filtering-fabric covering said slats, a trough at the lower edge of said partition, and means to removably support the partition, as set forth. (5.) In a series of leaching tanks of the character described arranged in stair-like co-operative relation, pipes leading from the bottom of each tank, valves in said pipes, a conduit to receive the discharge from said pipes, a receiver into which said conduit discharges, and pipes in each tank provided with stoppers discharging from the filters through the outer case into the tank next below it, the pipes from the lowest tank discharging into a waste trough, substantially as described.
(Specification, 4s. 6d. ; drawings, 2s.)

No. 16828.—18th August, 1903.—PHILIP DIEHL and MARTIN HEMLEB, of Elizabethport, New Jersey, United States of America, Inventors. Rotary take-ups for sewing-machines.

Extract from Specification.—This invention relates to rotary take-ups for sewing-machines of the kind wherein the needle-thread moves in and out on the rotary take-up arm for the thread-slackening and the stitch-tightening or take-up operations. Under the present invention the guard surrounding the rotary take-up arm is fixed to the head or face-plate of the machine, and overlaps the outer end of the said take-up arm so as to prevent the needle-thread from escaping therefrom, and also so as to protect the attendant, whose hands might otherwise be injured by the rotary take-up arm. Also, in the present invention, the inner part of the rotary take-up arm is provided with a thread-detaining shoulder which prevents a too rapid thread-slackening operation while the needle is descending; and the present invention also provides an improved stationary thread-guard device arranged and operating out of the normal path of the thread wholly on the cast-off or thread-slackening side of the path of movement of the said rotary take-up, and which device is so located that the thread has no contact therewith except when broken, the said unthreading device being adapted to catch without severing the loose end of an accidentally broken thread as said loose end is carried around, and thus withdraw such loose end of thread from the rotary take-up.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 10s. ; drawing, 1s.)

No. 16836.—19th August, 1903.—AUGUST HUCK, of 67, Guiollettstrasse, and LUDWIG FISCHER, of 73, Mendelsohnstrasse, both of Frankfort-on-the-Main, Kingdom of Prussia, German Empire, Private Gentlemen. Improvements in and connected with supports for photographic and other printings.

Claims.—(1.) Process for the production of metallised varnish-layers, on rigid plates or suitable flexible bodies covered with a suitable varnish, the distinguishing feature being that the varnish coated body is covered with a solution formed of albumen, honey, and water, to which covering metallic powder is applied before the former is thoroughly dry, the application being continued until a homogeneous bronze coating is produced, which, when dry, is hardened by means of alcohol, substantially as described, and for the purpose specified. (2.) The described metallised varnish-layer consisting of a thin sheet or metalline foil obtained by cutting out and detaching the same from its support, the distinguishing feature being that a rigid body is either firstly suffused—with a celluloid varnish or with a varnish that does not combine with the metallised varnish-layer or with a substance soluble in water, such as gelatine or albumen, and then covered with fat—or solely covered with fat; but in every case poured over with a solution of caoutchouc or collodion before the process of producing the metallised varnish-layer is further carried out, substantially as described, and for the purpose specified. (3.) The described metallised varnish-layer combined with paper, the distinguishing feature being that sheets of paper or any suitable and flexible material are, if necessary, firstly made impermeable by a solution of caoutchouc and chloroform or the like, and then supplied with a thin metallised varnish-layer, substantially as described, and for the purpose specified. (4.) The described metallised varnish-layer prepared and sensitised for photographic, photo-mechanical, and other printing processes, being produced by the combination with a metallic coating homogeneously fixed to a suitable varnish-layer, of pure gelatine, or gelatine hardened by an addition of formaline, chrome-alum, bichromate of potassium, or any other suitable hardening agent, or of caoutchouc dissolved in chloroform, benzol, carburetted hydrogen, or similar dissolvents, or of collodion at a percentage of 2 per cent., or of a mixture of two or more of these binding-means poured over the metallic coating for making the same fit for photo-mechanical and other printing processes, and by sensitising this binding-layer with any suitable emulsion for exposure under negatives or for employment in magnifying pictures by projection, substantially as described, and for the purpose specified.
(Specification, 6s.)

No. 16837.—19th August, 1903.—GEORGE MOORE, of Mercur, Tooele, Utah, United States of America, Mining Engineer. Improvements in filters.