Jan. 12.] THE NEW ZEALAND GAZETTE. 119

brackets projecting from the side of a vessel and carrying projecting rods between which a rope is strained, substantially as specified. (3.) In apparatus for the purpose indicated, the telescopic rods arrangable vertically relatively to a vessel, and adapted to carry a rope which is strained between their respective ends, substantially as specified. (4.) In apparatus of the nature indicated, the employment of a rope extending below and across the hull of a vessel, substantially as and for the purpose specified and illustrated.

(Specification, 3s. 6d.)

No. 27924.—20th June, 1910.—THOMAS COLLINS and LOUIS HENRY HARTMANN, of West Main Street and South Main Street respectively, both in Bainbridge, Chenango County, New York, United States of America, Manufacturers. Improvements in gearing for imparting rotary movement at high speed.

Extract from Specification.—We employ a spur-gear in a horizontal plane in mesh with a pinion in the same plane and connected with the power-applying devices, and we provide a handle directly associated with and for actuating said spur-gear, upon which both of the hands of the operator can be placed for the revolution of the spur-gear, thereby availing of the power of both hands and arms.

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

(Specification, 10s. 9d.)

No. 28097.—16th July, 1910.—FRED BEDFORD, Ph.D., B.Sc., Lond., Chemist, and CHARLES EDWARD WILLIAMS, Seed-crusher, both of Sleaford, Lincoln, England. Improvements in and connected with the catalytic synthesis of methane.

Claims.—(1.) In a process for the catalytic synthesis of methane, and wherein a commercial gas or mixture of commercial gases is employed, purifying the latter by cooling to such a degree that the impurities separate out in the solid form possessing little or no vapour tension before allowing the gas or mixture of gases to pass into contact with the nickel or other catalyser, for the purpose set forth. (2.) A process for the catalytic synthesis of methane from a commercial gas, consisting in cooling the gas, which should be first freed from carbon-dioxide to such a degree that the impurities separate out in a solid form possessing little or no vapour tension, separating the gas into its constituents by suitable means, mixing the carbon-monoxide obtained with hydrogen in the quantities required, and passing the mixture over catalytic nickel, substantially as described. (3.) A process for the catalytic synthesis of methane from a commercial gas, consisting in subjecting the gas first freed from carbon-dioxide to a cooling process to separate out the impurities in the solid form possessing little or no vapour tension, and in such a manner that the hydrogen retains the required quantity of carbon-monoxide, passing this mixture over nickel, and separating out the methane by cooling. (4.) In a process for the catalytic synthesis of methane as claimed in claim 3, passing the mixture of hydrogen and carbon-monoxide over nickel in the presence of nitrogen, and separating out the methane.

(Specification, 5s. 9d.)

No. 28248.—12th August, 1910.—HENRY METCALFE, of Auckland, New Zealand, Carpenter. An improved scaffolding-bracket.*

Claims.—(1.) In scaffolding-brackets, a flat plate upon the inner end of the horizontal member, and extending upwards at right angles thereto, substantially as and for the purposes specified. (2.) The improved scaffolding-bracket constructed substantially as described and explained, and as illustrated in the drawings.

(Specification, 3s. 3d.)

No. 28306.—21st January, 1910.†—ALBERT KILBORN, of Middle Brighton, Victoria, Engineer. Improvements in elastic-fluid motors.

Claims.—(1.) In elastic-fluid motors, a secondary cylinder having differential areas and provided with a piston of large diameter directly connected with a piston-valve of smaller diameter, and adapted to operate a primary cylinder having differential areas and provided with a piston of large diameter directly connected with a piston-valve of smaller diameter, said cylinders having their smaller areas always in direct communication with the elastic motive fluid, and each being provided with ports and passages for alternately delivering fluid and air against the respective pistons of the other cylinder.

[NOTE.—Here follow nine other claims.]

(Specification, 8s. 6d.)

No. 28643.—27th October, 1910.—DANIEL COGHLAN, of Waikonini, Hawke’s Bay, New Zealand, Shepherd. An improved point-protector for hat-pins and the like.

Extract from Specification.—This invention relates to pins used for securing hats to the hair of a wearer, and consists of a knob or ornament adapted to receive the point of the pin, and a mouth-piece provided with a spring which engages a groove formed in the pin.

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

(Specification, 2s. 9d.)

No. 28647.—4th January, 1910.†—EDGAR ARTHUR ASHCROFT, of 99 Buckingham Palace Road, London, England, and of Sande Gaard, Balestrand, Sogn, Norway, Electrochemical Engineer. Improvements in the manufacture of metallic amides, cyanamides, and cyanides.†

Claims.—(1.) The manufacture by electrolysis of amides, cyanamides, or cyanides of the alkali metals by the use of an alloy of the alkali metal or metals with another metal or other metals, and of a molten electrolyte consisting of the desired product with the addition of the necessary matter to react with the nascent alkali metal or metals, substantially as explained.

[NOTE.—Here follow five other claims.]

(Specification, 8s. 6d.)

No. 28743.—16th November, 1910.—NORMAN LUJA DAHL, of Palmerston North, New Zealand, Dairy Engineer. An improved regulating-device for milk-heaters and pasteurizers.

Extract from Specification.—According hereto, a pipe leading from the milk-vat is furnished with a stop-cock which is provided with a valve operated by a float which is located within a funnel in communication with the pasteurizer. The discharge-opening from the funnel can be adjusted to regulate the flow of milk.

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

(Specification, 3s.)

No. 28768.—10th February, 1910.—RUSSELL SINCLAIR, of No. 82 Pitt Street, Sydney, New South Wales, Australia, Consulting Mechanical Engineer (assignee of John Alexander Sampson, of Gladstone Meatworks, Gladstone, New South Wales aforesaid, Engineer). Improvements in ammonia and other gas compressors.

Claims.—(1.) In a gas-compressor, the combination with the main cylinder of an auxiliary closed chamber having connecting port or ports into said cylinder in such manner that gas compressed in said auxiliary chamber by the forward or outer stroke of the piston will pass or expand into said cylinder on the termination of said forward or outer stroke, substantially as described and explained.

[NOTE.—Here follow four other claims.]

(Specification, 4s. 3d.)

No. 28792.—28th November, 1910.—LEWIS EMANUEL CASSRELS and WILLIAM JAMES RUTHERFORD, both of Parnell Rise, Parnell, Auckland, New Zealand. Improvements relating to advertising-signs.

Claim.—In combination, an advertising-plate, a series of wires between which said plate is interlaced, and a plurality of hooks secured to said plate and adapted to take over a horizontal wire, substantially as specified and illustrated.

(Specification, 1s. 3d.)