2096
THE NEW ZEALAND GAZETTE.
[No. 53

This is accomplished by constructing a furnace so as to provide a series of chambers connected with each other for the reception of the oxide of iron at various stages of treatment, each chamber being subjected to severe heat, owing to the arrangement of the heating-flues. Doors and tap-holes are provided in the sides of the chambers for the handling and working of the oxide during treatment. (Specification, 4s. 3d.)
[NOTE.—The above extract from the specification is inserted in place of the claims.]

No. 29062.—26th January, 1911.—ERNEST MOSS, of Christchurch, New Zealand, Mechanic. Improvement in means for clamping a spare rim to the ordinary rim of a motor-car or the like.*
Extract from Specification.—The construction comprises, briefly, a third or intermediate jaw, secured to or adapted to be placed upon the bar of the clamp, approximately midway between and in line with the two jaws, such intermediate jaw being formed with two faces so as to receive the inner edge of the one rim upon its one face and the inner edge of the other rim upon its other face. (Specification, 7s. 6d.)
[NOTE.—The above extract from the specification is inserted in place of the claims.]

No. 29147.—15th February, 1911.—EDWARD NEEDHAM WATERS, a member of the firm of Edward Waters and Sons, Patent Attorneys, of Nos. 414–418 Collins Street, Melbourne, Victoria, Australia (nominee of Badische Anilin and Soda Fabrik, of Ludwigshafen-on-Rhine, Germany, assignees of Carl Bosch, Alwin Mittasch, and Hans Wolf, all of Ludwigshafen-on-Rhine aforesaid, and George Stern, of Mannheim, Germany). Improvements in the manufacture of ammonia, and in the manufacture and production of catalytic agents for use therein.
Extract from Specification.—(1.) A new form of iron, as explained, which is an active catalytic agent for the manufacture of ammonia from its elements. . . . (3.) For the manufacture of ammonia from its elements, an active catalyst consisting of iron and a “promoter,” substantially as described. (4.) For the manufacture of ammonia from its elements, an active catalyst consisting of iron and an alkaline earth oxide. (5.) For the manufacture of ammonia from its elements, an active catalyst consisting of iron and aluminium oxide. (Specification, 16s. 6d.)
[NOTE.—The above extract from the specification is inserted in place of the claims.]

No. 29148.—15th February, 1911.—EDWARD NEEDHAM WATERS, a member of the firm of Edward Waters and Sons, Patent Attorneys, of Nos. 414–418 Collins Street, Melbourne, Victoria, Australia (nominee of Badische Anilin and Soda Fabrik, of Ludwigshafen-on-Rhine, Germany, assignees of Carl Bosch, Alwin Mittasch, and Hans Wolf, all of Ludwigshafen-on-Rhine aforesaid, and George Stern, of Mannheim, Germany. Improvements in the manufacture of ammonia, and catalytic agents for use therein.
Extract from Specification.—(1.) For the manufacture of ammonia from its elements, an active catalyst containing a catalytic agent, other than iron, and a “promoter,” substantially as described. (2.) For the manufacture of ammonia from its elements, an active catalyst containing barium and an oxide of an alkali metal, or of an alkaline earth metal. (3.) For the manufacture of ammonia from its elements, an active catalyst containing barium and potassium, as oxide or hydroxide. (Specification, 6s. 6d.)
[NOTE.—The above extract from the specification is inserted in place of the claims.]

No. 29197.—28th February, 1911.—SCOTT BBOS., LIMITED, of Manchester Street, Christchurch, New Zealand (assignees of John Lee Scott and George Scott, of Christchurch, Engineers). Improvement in the apparatus for the production of gas.*
Claims.—(1.) In an apparatus for the production of gas having two separate inverted zones of gas-production, an annular passage or chamber situated at suitable position between the upper and lower zones and having its complete inner circumference open to the producer for the purpose of collecting and conveying away the gas produced. (2.) In an apparatus for the production of gas having two separate inverted zones of gas-production, and in connection with the annular passage mentioned in claim 1, two diametrically opposed outlet-ports leading by a semicircumferential passage to the main gas-eduction pipe situated midway between them. (3.) In an apparatus for the production of gas having two separate inverted zones of gas-production, an annular iron-cased water-chamber on the upper side of the annular gas-passage for the purpose of preventing clinkering round the annular gas-passage and for supporting the upper part of the producer. (Specification, 4s. 9d.)
[NOTE.—Here follow four other claims.]

No. 29275.—24th November, 1910.†—FELIX TANNER, of the Hotel Arcadia, Pitt Street, Sydney, New South Wales, Australia, Engineer. Improvements in means for the prevention of racing of marine engines.
Extract from Specification.—According to my invention, in a suitable position on the vessel a beam is pivoted so that in its normal position it is approximately parallel with the actual load-line. On one arm of the beam is an adjustable weight for regulating purposes, and on the opposite arm are one or more depending contact-pieces which are capable of taking into one or more cups or receptacles containing mercury to make contact therewith and energize a solenoid. The beam has a second adjustable weight below its pivot, to maintain it as near as practicable to the horizontal position when the vessel is pitching. The solenoid has its plunger or rod extended, and on the extension a link is pivoted, the other end being secured to a lever controlling the spindle of the throttle-valve. Instead of transmitting the movement of the rod to the spindle by a link I may employ other means, such as a rack and pinion. The rod is provided with a suitable spring so that immediately the contact piece or pieces on the beam break contact with the mercury the rod is retracted to its normal position and the throttle-valve opened. (Specification, 4s.)
[NOTE.—The above extract from the specification is inserted in place of the claims.]

No. 29291.—20th March, 1911.—HENRY MCDONALD, of Auckland, New Zealand, Engineer. Improved means for locking nuts on bolts.
Claims.—(1.) In means for locking nuts on bolts of the class described, a helically twisted spring adapted to encircle and follow the thread of the bolt and to extend beyond the back face of the nut, and having one end thereof turned inwards and inserted in an aperture formed in such face, substantially as specified. (2.) The improved means for locking nuts on bolts constructed and operating substantially as described and explained, and as illustrated in the drawings. (Specification, 2s. 9d.)

No. 29418.—20th April, 1911.—JAMES THOMAS HUNTER, of 157 Featherston Street, Wellington, New Zealand, Patent Agent (nominee of Joseph Barton Scammell, of 111 Hatton Garden, London, England, Inventor). Improvements in or relating to artificial indiarubber.
Claims.—(1.) The process of producing artificial rubber, or a substitute for rubber, which consists in soaking cellulose, such as cotton, in a fatty acid, such as butyric acid, adding the prepared cotton to vegetable or animal oil, introducing chloride of sulphur to dissolve the cellulose and neutralizing the acid formed. (Specification, 2s. 6d.)
[NOTE.—Here follow three other claims.]

No. 29479.—2nd May, 1911.—BARTLETT MILLER, of Waymouth Street, Adelaide, South Australia, Australia, Lime-merchant (assignee of Frederick Henry Dry, of Stansbury, South Australia aforesaid, Lime-burner). An improved method of and means for burning lime.
Extracts from Specification.—The interior of the kiln is constructed in the form of an inverted cone-shaped opening or hopper as shown at b; a pyramidal or cone-shaped grating is formed at d. Radiating from the interior of the kiln are several passageways. (Specification, 3s. 3d.)
[NOTE.—The above extracts from the specification are inserted in place of the claims.]

No. 29496.—4th May, 1911.—REGINALD WILLIAM ALLEN, of Emily Street, Murrumbeena, Victoria, Australia, Commercial Traveller. An improved tool for castrating lambs.
Extract from Specification.—My improved tool consists essentially of a knife-blade the tang or shank of which is either extended so as to constitute a handle, or is removably attached to a handle, said handle having a gripping-jaw at its other end, another handle pivoted at one end to said tang or shank adjacent to the butt-end of the knife-blade and having a gripping-jaw at its other end and a spring to keep said jaws normally apart. (Specification, 3s.)
[NOTE.—The above extract from the specification is inserted in place of the claims.]

No. 29498.—4th May, 1911.—THE MUIR-VINCENT SMOKE CONSUMER AND FUEL ECONOMIZER COMPANY, LIMITED, a company registered under the laws of the State of New South Wales, and having its office at 14 Martin Place, Sydney, New South Wales, Australia, Manufacturers (assignees of Alfred Vincent, of 8 Golden Grove Street, near Sydney, New South Wales aforesaid, Engineer, and Charles Muir, of 88 Sutherland Street, St. Peters, near Sydney aforesaid). Improvements in boiler-furnaces.