Mar. 9.] THE NEW ZEALAND GAZETTE. 701

Claims.—(1.) My improved process of precipitating gold from cyanide-solutions, consisting in passing said solution in rotation through a series of shallow vessels each containing a thin layer of charcoal, means being provided for distributing the gold-cyanide solution equally over the whole surface of said charcoal, substantially as described and explained. (2.) In a process of precipitating gold from cyanide-solutions, passing said solution in rotation through a series of shallow vessels each containing a thin layer of charcoal, superimposed on which is a movable perforated tray to aerate and distribute said solution equally over the whole surface of said charcoal, substantially as described and explained. (3.) In apparatus for precipitating gold from cyanide-solutions, a series of small filters D containing a thin layer of charcoal, and arranged one below and slightly in advance of the other, means for supplying the topmost one with the gold-cyanide solution, means for delivering the solution from each filter to the one below it, and means for aerating the solution in the filter before reaching the charcoal therein, all substantially as described and explained, and as illustrated in the drawings. (4.) In apparatus for precipitating gold from cyanide-solutions, the combination with the filter D containing a thin layer of charcoal I, of a movable perforated tray K, substantially as described and explained, and as illustrated in the drawings.
(Specification, 5s. ; drawing, 1s.)

No. 19080.—15th February, 1905.—HENRY R. WORTHINGTON, a corporation organized and existing under the laws of the State of New Jersey, and having its principal place of business at 114, Liberty Street, City, County, and State of New York, United States of America (assignees of William Clinton Brown, of Prescott, Quebec, Canada, Mechanical Engineer, and Otto Hildebert Mueller, of Berlin W., German Empire, Engineer). Improvements in compensating direct-acting engines.

Extract from Specification.—The tappet 15 engages the valve-rod 18 and opens the valve 19 at the end of each stroke of full length in one direction, so as to admit air from air-chamber D to the back-pressure system. The tappet 15 and the valve 2 are so adjusted that on the normal stroke of the engine the valve 19 is opened by the tappet only for such a time as to compensate for the leakage from the back-pressure system through valve 2, and thus maintain a uniform load on the accumulator-cylinders F, or if the stroke be too long the valve 19 will be open for a longer time and more air admitted to the back-pressure system, with the result that the pressure in the back-pressure system is increased and the compensating-cylinder load slightly reduced, which will tend to shorten the stroke of the engine and gradually bring the engine back to normal stroke. When by reason of shortened stroke the tappet fails to open the valve 19 the pressure of air in the back-pressure system drops gradually on account of the leak through the valve 2, and as the back pressure decreases the compensating-cylinder load increases and the stroke is gradually lengthened. By adjusting the tappet 15 and the valve 2 a practically constant stroke of the engine may readily be secured.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 14s. ; drawings, 2s.)

No. 19083.—15th February, 1905.—NINIAN HILL, of Auckland, New Zealand, Salesman (assignee of Francis Davis, late of Melbourne, Victoria, Australia, Assayer). A device for retaining wire mattresses upon bedsteads.

Claim.—A device for use in retaining wire mattresses in position upon bedsteads, the same consisting of a strip of flat metal adapted to fit upon and clip the side members of the bedstead, and formed with an upwardly projecting portion adapted to engage with the inside face of the corresponding side member of the mattress-frame, substantially as described.
(Specification, 1s. 9d. ; drawing, 1s.)

No. 19086.—13th February, 1905.—RICHARD WINGFIELD STUART, of 95, Elizabeth Street, Sydney, New South Wales, Australia, Mining Engineer. Improved apparatus for carburetting air and producing a combustible gas for lighting and heating purposes.

Extract from Specification.—The invention comprises an engine of any suitable kind for working an air-bellows, a heating-chamber through which the air is forced from the bellows, a carburetting-chamber adapted to be heated by the hot air forced through it by the bellows, and the necessary cocks, valves, petrol-tanks, and other appliances incidental to the production of a suitable combustible gas from petrol vapour.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 5s. 9d ; drawing, 1s.)

No. 19091.—16th February, 1905.—RICHARD WILLIAM GALLAGHER, of 750, Ellis Street, San Francisco, California, United States of America, Electrician. Bill - delivery mechanism for meters.

Extract from Specification.—The operation of the device is as follows: The gas-bill collector pulls down the lever 5, which causes the recording frame and wheels to descend until the needles thereon perforate the three sheets of paper which lie on the top of the rubber pad. When the lever 5 rises again under the action of springs 9 the needle-points are withdrawn from the sheets of paper, and the paws engage the ratchet teeth and revolve the feed-rollers, causing the sheets of paper to advance between said rollers. When the recording-wheels return to their original position they will again mesh with the gear wheels 41, 42, 43, either immediately or before said gear wheels have advanced through the distance of one tooth. The two sheets which project are torn off by the gas-bill collector and are handed to the consumer, and if the bill is at that time paid the two sheets are both suitably stamped or perforated, as with the word “Paid,” and one of them is handed to the consumer and the other is turned in at the office together with the amount collected. If the bill is not paid one of the sheets is left with the consumer and the other is turned in at the office, showing that the bill is not paid. The gas-collector will now unlock the door and will by hand turn back the counting-wheels to zero, and then after locking the door will take a second impression, and hand a second slip to the consumer, showing that the indicator now stands at zero, and, in like manner as before, turning in a duplicate of the same at the office.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 14s. 6d. ; drawings, 4s.)

No. 19099.—18th February, 1905.—KATHLEEN LOW, of Lumeah Hospital, Kensington Street, Wellington, New Zealand, Nurse. Improved abdominal belt.

Claims.—(1.) An abdominal belt constructed of webbing in independent sections, having a main fastening of straps and buckles, the remaining sections being connected by lacing which permits of the adjustment of the belt, darts being provided in the back of the belt for fitting purposes, substantially as specified. (2.) An abdominal belt constructed, arranged, and operating substantially as specified.
(Specification, 1s. 9d. ; drawing, 1s.)

No. 19103.—17th February, 1905.—JOSEF KUDLICZ, of Prague, VII., Bohemia, Austria, Manufacturer; ADOLF CARL FRIEDRICH VON ANDRÉ, of 81, Piccadilly, London, England, Gentleman; and HANS RUDOLPH OTTO FRIEDERICI, of 58, Lombard Street, London, England, Gentleman. Improvements in or relating to mechanical stokers.

Extract from Specification.—An important feature of the present invention consists in the special form of the rotary ejector or stoking-member, with enlarged boss and short throwers, as well as the special direction of rotation of said rotary ejector or stoking-member round its horizontal axis in the lower part of the casing—i.e., this ejector is revolved round its horizontal axis in the direction indicated by the arrows in the drawing, so as to thereby throw the coal off the upper part of said ejector and without passing the coal under the horizontal axis of the ejector. A further important and essential feature of this invention consists of the clearance-space above the ejector, and between the latter and the feed-hopper or outlet from said feed-hopper, this clearance-space being so located and so arranged and of such dimensions as to permit any coal which is not properly struck by the ejector and ejected from the apparatus to be received in this clearance-space and again dropped on the ejector until properly struck by the latter and ultimately ejected from the apparatus. A further important feature consists in the special form and construction of the duplex deflecting-plates for locomotive purposes, and the special arrangement of said duplex deflecting-plates, so as to coact with one another and co-operate with the whole apparatus; and also the special formation of the single deflecting-plate for use in conjunction with the whole apparatus for stationary and marine boilers.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, £1 5s. ; drawings, 8s.)