APRIL 18.] THE NEW ZEALAND GAZETTE. 1369

No. 30946.—3rd November, 1911.†—ALEXANDER CHRISTIE, of Farquhar Street, Junction, near Newcastle, New South Wales, Australia, Commercial Traveller. Improved machine for packing butter into boxes.

Extract from Specification.—According to this invention, an improved machine for packing butter into boxes by compressing and sizing it into blocks, and pressing these into boxes, comprises a receiving-tube having a reciprocating plunger therein, a compression-tube as a continuation of said receiving-tube and tapering to its discharge, a sizing-tube in communication with and at right angles to said compression-tube and containing a reciprocating plunger, a removable end to said sizing-tube, devices for securing the box with arc against the open side, the open end of the sizing-tube, and mechanism for reciprocating the two before-mentioned plungers. (Specification, 4s. 9d.)

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

No. 30955.—28th February, 1912.—HERBERT EDWARD COOPER ROBINSON, of Phillip Street, Sydney, New South Wales, Australia, Publisher. Improvements in metallographic and lithographic printing processes.

Claims.—(1.) A process for producing a printing-surface on metal or stone which consists in preparing a grained metal plate or stone slab with a resist-film sensitive to light, and exposing the same directly to light transmitted through a photographic line or half-tone plate made from the original to be reproduced, developing and inking up the image thus printed on the plate or slab, removing the surplus film, clearing the plate, and preparing the same for surface-printing, substantially as described. (2.) The described method or process by which an original is reproduced in variable dimensions on a metallographic plate or lithographic stone, and made to form a printing-surface thereon, which consists essentially in obtaining a line stipple or screen photographic plate from such original, printing therefrom by transmitted light a sensitized film applied to a prepared metallographic plate or lithographic stone, developing the film so printed, inking up the lines, removing the surplus film, and clearing and preparing the plate so as to leave the surface thereof exposed in condition for metallographic or lithographic printing, substantially as described. (Specification, 5s. 9d.)

No. 30956.—28th February, 1912.—FRANZ SCHERRER, of Humboldstrasse 18, Bonn on the Rhine, Germany, Director. Improvements in fire-escapes.

Claims.—(1.) A fire-escape characterized by the provision of a landing surrounded on the outside by a railing that automatically adjusts itself at the height of the window-sill of each floor, and whereon persons escaping can pass without suffering from dizziness, the landing being so connected with the escape that the persons escaping can pass from it through an aperture provided therein to the escape, and thus reach safety. (2.) A constructional modification of the fire-escape in accordance with the preceding claim, characterized by the fact that the landing is formed of jointed elements that, when in the non-operative condition, can be folded together with the escape into the wall, and that when there is danger from fire automatically assume the operative position as soon as the escape has been turned out. (3.) A constructional modification of the fire-escape in accordance with the two preceding claims, characterized by the fact that the landing and the railings appertaining thereto, when not in use, can be folded into a vertical plane. (Specification, 12s.)

[NOTE.—Here follow fifteen other claims.]

No. 30973.—13th April, 1911.†—JAMES TROUP HORNE, of 43 Highfield South, Rock Ferry, Chester, England, Master Mariner and Marine Superintendent. Improvements in and connected with means of communicating with or obtaining access to the holds or chambers of ships.

Claims.—(1.) Means of communicating with, or obtaining access to, the holds or chambers of ships, and between their decks, consisting of an openwork structure in the form of and adapted to serve as ladders, comprising upright stanchions or pillars, and horizontal bars, constituting rungs, extending between the stanchions or pillars, or between parts of same, and which together constitute a ladder-way, substantially as set forth. (2.) Means of communicating with, or obtaining access to, the chambers or holds between the decks of a ship, from the upper deck to the bottom, and to the tanks in the bottom of the ship, consisting of the ladder structure, comprising upright stanchions or pillars, and horizontal bars constituting rungs, substantially as set forth, with reference to and shown in the drawings. (Specification, 7s. 6d.)

No. 30982.—6th March, 1912.—THOMAS AUGUSTUS DRING, of “Sunny Bank,” Trowbridge, Wilts, England, Accountant. Improvements in flying-machines.

Extract from Specification.—According to my present invention, the lifters have a plurality of blades or vanes, all of which are radially or approximately radially arranged and inclined in the direction of their path of rotation (i.e., with their tips in advance of their roots), and are provided with means for preventing the inflow of any air at their roots or bases, whereby the flow of the discharged air at the desired angle is not disturbed. I find that the lifters have greatest efficiency when the shape of the blades or vanes is such that their outer edges form a straight-sided cone having an angle of from 80° to 90°, and when each opposed pair of lifters employed on the ship have their axes inclined from one another each at an angle of from 40° to 45° to the vertical. (Specification, 5s. 9d.)

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

No. 30990.—6th March, 1912.—STANISLAUS KUCHARSKI, of Weidmannslust, near Berlin, Germany, Engineer. Improved process and apparatus for printing cinematograph-films.

Claims.—(1.) The process for printing negative cinematograph-films by projection which consists in holding the film-strip by suitable tensioning-means with its emulsion-free side against the printing-window while it is passing through the printing-apparatus, substantially as described. (2.) An apparatus for carrying out the process claimed in claim (1), comprising balance-weights or similar suitable means for pulling in opposite directions, fitted to the shafts of the rollers at the ends of the film-strip, substantially as and for the purpose described. (3.) An apparatus for printing series cinematograph-films by copying the still wet negative, comprising a suitably supported stock-roller, means for giving said stock-roller a lateral displacement during its rotation, a feed toothed wheel engaging with the film, a guide-roller in co-operation with said feed-wheel and holding the film thereto, and a water-tank into which the film is passed, substantially as described. (Specification, 3s. 6d.)

[NOTE.—Here follow four other claims.]

No. 30994.—5th March, 1912.—THOMAS LAURITS LANGEVAD, of Auckland, New Zealand, Carpenter. Improved method of building flights of concrete or other steps.

Claims.—(1.) In an improved method of building flights of concrete or other steps, the steps other than the top and bottom steps, formed separately and of a triangular formation, with the back edge of the tread formed at right angles to the step-back, and also having a horizontal portion and a shoulder at right angles to the step-back formed at the bottom corner, in the manner and for the purpose set forth, as described and illustrated. (2.) In an improved method of building flights of concrete or other steps, the top step formed with a horizontal portion and a shoulder at right angles to its back, at the lower corner, and also having a projecting horizontal portion formed on to the back of the tread, in the manner and for the purpose set forth, as described and illustrated. (3.) In an improved method of building flights of concrete or other steps, the bottom step formed with a flat base and an angular surface or edge at the upper rear corner, in the manner and for the purpose set forth, as described and illustrated. (Specification, 3s. 6d.)

[NOTE.—Here follows one other claim.]

No. 30999.—7th March, 1912.—LOUIS FELIZAT, of Salon, Bouches-du-Rhone, France. Improvements in furnaces for burning the commercial residues of different industries, especially in oil-works, for the purpose of obtaining wood-charcoal.

Claim.—(1.) Each compartment is divided (by means of slabs suitably inclined to the horizontal, and forming baffles, and arches, more or less curved, and either perforated or not perforated) into three parts, a combustion-chamber in which the orifices for the supply of air open on the face of the furnace, a carbonizing-chamber situated below, and at the bottom a discharging and quenching chamber, the slabs and arches (together with their inclinations) being combined in such a manner as to automatically regulate the descent of the combustible substances for the purpose of assuring the complete combustion of their volatile contents and of preventing the formation of scoria. (Specification, 8s. 6d.)

[NOTE.—Here follow two other claims.]

No. 31011.—7th March, 1912.—HUGH MUNRO WILSON, of Auckland, New Zealand, Civil Engineer. Improved method of forming concrete sewers.

Claim.—(1.) The improved method of forming concrete sewers by using as a mould for the lower half of the sewer the semicircular sheet-iron crown provided with side lugs,