2106
THE NEW ZEALAND GAZETTE.
[No. 93

its arm so as to press the contact-device towards the conductor. (4.) In an apparatus of the kind described, locking-devices for normally restricting the movement of the support for the contact-device to one plane, substantially as described. (5.) In an apparatus of the kind described, an electric switch which is operated by the movement of the support for the contact-device around an axis, so that the circuit through the vehicle is broken except when the support is in an operative position, substantially as described. (6.) The various contact-devices for making connection with the overhead conductor, substantially as described with reference to Figs. 1 to 5, 11 to 17, and 18 to 20 of the drawings, for the purpose specified. (7.) The various constructions of apparatus for conveying current from an overhead conductor to an electric car constructed and operating substantially as described with reference to any of the forms shown in Figs. 6, 7, and 21 to 29, of the drawings. (8.) The means for supporting the overhead conductor at curves substantially as described with reference to Figs. 30 to 32 of the drawings. (9.) A cross-over device for two overhead conductors, one of said conductors having a section at the crossing insulated from the main portion and bridged by an auxiliary section, the other conductor, which crosses the first-named, being electrically connected to the insulated section, whereby a car normally deriving its current from the first conductor will at the crossing derive current from the second conductor. (10.) For use at the crossing-places on overhead conductors, a casting constructed as described with reference to Figs. 33 to 35, for the purpose specified.
(Specification, 15s.; drawings, £3 3s.)

No. 11689.—8th June, 1899.—BASIL JOHN ATTERBURY, of New Malden, England, Engineer, and THOMAS MACALPINE, of Chiswick, England, Doctor of Science and Research Chemist. A new or improved production of acetylene compounds and of ethylene.

Description.—“We first produce acetylene gas in any of the usual methods, preferably by means of the mutual decomposition of water and calcium-carbide, otherwise known as calcium acetylene. We then pass the acetylene gas into a vessel containing in a fine state of division metallic copper, or oxide of copper, or sulphide of copper, or carbonates or hydrates of copper, or other suitable metal, such as lead, aluminium, iron, manganese, chromium, zinc, or magnesium, which is kept suspended in water by means of an agitator; or, alternatively, we take a salt of copper or of the above-mentioned metals which is soluble in water or acid, preferably sulphate of copper, and precipitate the copper by means of the oxides, hydrates, or carbonates of lime, barium, magnesium, sodium, or potassium.

“This precipitate we suspend in water, and pass the acetylene gas into it whilst the precipitate is under agitation, with or without pressure; or, alternatively, we deliver the calcium - carbide directly into the water containing the metallic copper, or copper-oxide, or copper-sulphide, or carbonates or hydrates of copper or other metals containing the precipitate formed by any of the methods above mentioned, and thereby form copper acetylene, agitating the water and the precipitate at the same time.

“To produce ethylene from the above: After treating with acetylene gas until saturation, we transfer the copper acetylene to another vessel, where we add water and mix it with metallic zinc or other metal, or with any chemical compound suitable for the purpose of decomposing the copper acetylene by means of nascent hydrogen, using for this purpose the copper acetylene alone, mixed with the decomposing chemical, or assisted by the addition of the oxides, hydrates, or carbonates of lime, barium, magnesium, sodium, or potassium.

“The quantity necessary for this purpose may be added either when liberating the hydrogen, or an amount sufficient for this purpose may be added to the metallic copper, or to the oxides of copper, or to the sulphide of copper, or to the carbonates or hydrates of copper, or to the precipitate of the soluble salt of copper formed by any of the means mentioned, before saturation with the acetylene.

“In the case of adding the calcium-carbide to the metallic copper, or copper-oxide, or copper-sulphide, or to the carbonates or hydrates of copper, or to the precipitate of the soluble salt of copper, sufficient hydrate of lime is present through the decomposition of the calcium-carbide to decompose the zinc or other metal or chemical substance, liberating nascent hydrogen.”

Claims.—(1.) The production of copper acetylene and acetylene compounds substantially as described. (2.) The production of ethylene substantially as described.
(Specification, 1s. 9d.)

No. 11852.—3rd August, 1899.—GEORGE EDWIN TISSINGTON, of Renwick Street, Drummoyne, Sydney, New South Wales, Engineer, and JAMES RICHARD THOMSON, of Union Bank Chambers, Pitt Street, Sydney aforesaid, Consulting Engineer. An improved means of propelling bicycles.

Claim.—The combination of a driving-wheel of unequal diameters, and of more or less an elliptical form, with the usual connecting band or chain and driven-wheel, substantially as described and illustrated.
(Specification, 1s. 6d.; drawings, 3s.)

No. 11977.—12th September, 1899.—JOHN WERNER, of Lowburn Ferry, Otago, New Zealand, Miner. Improvements in means for obtaining gold from the beds of rivers and similar places.*

Claims.—(1.) In apparatus for the purpose described, a caisson made in sections, said sections being constructed so that when superposed and connected they form a continuous tube working in guides depending from the pontoon, substantially as and for the purposes described, and illustrated in the drawings. (2.) A floating pontoon, inclined standards secured to the sides thereof, legs sliding in guides upon said standards and adjustable to reach the river-bed, a well in the pontoon, vertical guide-standards upon the sides thereof, and legs sliding upon said standards, forming a guide for a caisson made in sections, substantially as and for the purposes described and illustrated. (3.) Improved means for obtaining gold from the beds of rivers and similar places consisting of the apparatus and parts constructed, combined, and operating substantially as and for the purposes described and illustrated.
(Specification, 3s. 3d.; drawings, 8s.)

No. 12045.—4th October, 1899.—JOHN HARVEY KELLOGG, of Battle Creek, Calhoun, Michigan, United States of America, Physician. Improvements in process for preparing cereal cakes.

Claim.—The process described for the manufacture of an improved alimentary cereal product in the form of a cake or biscuit, which consists, first, in placing the moist and previously cooked or steamed cereal flakes in the several compartments of a bottomless crate, said crate temporarily resting upon a shallow pan; second, subjecting the moist flakes while in the crate to pressure; third, removing the crate and leaving the formed cakes in the shallow pan, and placing said pan in an oven for a sufficient length of time to permit the cakes to set; fourth, baking the cakes until thoroughly dry and crisp; and, fifth, passing the cakes underneath a gas toaster and browning the flakes, the last two steps serving to convert the starch into dextrine, as specified.
(Specification, 4s.; drawings, 5s. 6d.)

No. 12091.—16th October, 1899.—ERNEST BURTON, of Wickham Terrace, Brisbane, Queensland, Dentist, and RICHARD BOYD ECHELIN, of Toowong, near Brisbane aforesaid, Journalist. An improved ticket printing and issuing machine, applicable to enumerating-machines such as totalisator-machines.

Claims.—(1.) The general construction, locations, arrangements, and combinations of the whole of the parts and mechanical contrivances forming a complete ticket printing and issuing machine, applicable to enumerating-machines such as totalisator-machines, substantially as described and explained, and as illustrated in the drawings. (2.) In combination in a ticket printing and issuing machine, applicable to enumerating-machines such as totalisator-machines, the levers B with the two arms B¹ and B³ pivoting on the shaft AA, and the rocker-levers X, and the moveable-type sector S, all keyed to the shaft SS, arranged and operating in the manner and for the purposes described and explained, and as illustrated in the drawings. (3.) In combination in a ticket printing and issuing machine applicable to enumerating-machines such as totalisator-machines, the levers B with projecting knobs A¹, the lever Y, moveable-type sector T pivoting on the same centre as the shaft SS, on the printing arm or lever A, and the arm T¹ with pin or spud TT and the grooves T⁸, arranged and operating in the manner and for the purposes described and explained, and as illustrated in the drawings. (4.) In combination in a ticket printing and issuing machine, applicable to enumerating-machines such as totalisator-machines, the printing arm or lever A with space W² for printer’s chase for alterable type, the moveable