JULY 12.] THE NEW ZEALAND GAZETTE. 1927

The beat of the valve is preferably of rubber to deaden sound. The return throw of the valve is regulated by a set-screw passing through the casing and adapted to engage with a tail-piece projecting from the valve. A stud passing through the valve has a projection which extends beyond the casing and is employed to hold the valve up to its seat when it is desired to stop the ram. The valve is arranged at an inclination with its hinge uppermost, and a balance-weight is employed in the form of a tapering washer or otherwise, which overcomes the tendency of the valve to remain closed.

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

(Specification, 2s. 6d. ; drawing, 2s.)

No. 19842.—3rd August, 1905.—RICHARD WILLIAM LAWRENCE, of Dunedin, New Zealand, Contractor. Means for securing lamp-burner sockets to lamp-bowls.*

Claims.—(1.) Means for attaching lamp-burner sockets to lamp-bowls characterized by the burner-socket having an external flange engaging the lamp-bowl, and having a sleeve-screw attachment supporting a washer inside the bowl, the burner-socket on being screwed up on the sleeve causing the washer to be drawn up until it presses against the sides of the bowl, substantially as and for the purposes set forth. (2.) The general construction, arrangement, and combination of parts composing my means for securing lamp-burner sockets to lamp-bowls, substantially as described, or illustrated in the drawings.

(Specification, 3s. 3d. ; drawings, 2s.)

No. 19869.—5th August, 1905.—JAMES MACALISTER, of Dee Street, Invercargill, New Zealand, Agricultural-implement Maker and Engineer. Improvements in ridging-machines.*

Extract from Specification.—The invention consists in the manner of mounting the ridging-discs so as to make them easily adjustable for various widths and for riding over obstructions when working, and also to the manner and means whereby the ridging-rollers and seed- or manure-sowing coulters are mounted and carried.

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

(Specification, 5s. ; drawing, 1s.)

No. 19875.—9th August, 1905.—ROBERT RUTHERFORD DOUGLAS, of Dunedin, New Zealand, Engineer. Improvements in and relating to the bucket-links and connecting-links of dredging and conveying machinery.*

Claims.—(1.) Making protectors for links of the class described channel-shaped in cross-section, with extended portions having square holes, and making the bushes for the pinholes in the links with square flanges to rest in said square holes, substantially as described. (2.) Making the bushes for the pinholes in links of the class described with square flanges, so that the bushes may be an easy driving fit and the square flanges may be held to prevent the bushes from turning, substantially as described.

(Specification, 2s. 6d. ; drawing, 1s.)

No. 19880.—15th August, 1905.—CHARLES NICHOLAS COLLISON, a member of the firm of Collison and Co., Patent and Trade Mark Attorneys, of 483 Collins Street, Melbourne, Victoria, Australia (nominee of John Christopher Stead, of 42 Grove Green Road, Leytonstone, London, N.E., England, Technical Chemist). Improvements in and relating to the manufacture of carbon-dioxide.*

Claims.—(1.) An apparatus for the manufacture of carbon-dioxide from furnace or other mixture of gases containing CO₂, in which the said gases pass successively through a series of bicarbonating vessels containing CO₂ absorbing lye or liquor, and from the first of which vessels bicarbonated liquor is passed by the action of gravity into a separate boiling-off vessel, which latter is in communication also with the last of the series of bicarbonating vessels, said bicarbonating vessels being connected in pairs by siphon pipes so that the charging of the boiling-off vessel will, when the pressure in the bicarbonating vessels is equalised, cause the automatic feeding forward in said vessels of a quantity of liquor equal to that drawn off, all substantially as set forth. (2.) An apparatus for the manufacture of carbon-dioxide from furnace or other mixture of gases containing CO₂, in which the said gases pass successively through a series of bicarbonating vessels containing CO₂ absorbing lye or liquor, and from the first of which vessels bicarbonated liquor is passed by the action of gravity first into a lye-heating vessel, and from the latter into a boiling-off vessel, which latter is in communication also with the last of the series of bicarbonating vessels, said bicarbonating vessels being connected in pairs by siphon pipes so that the charging of the lye-heating vessel will, when the pressure in the bicarbonating vessels is equalised, cause the automatic feeding forward in said vessels of a quantity of liquor equal to that drawn off, said lye-heating vessel being adapted to contain a charge of lye through which the CO₂ from the boiling-off vessel passes so as to heat said lye and make it ready for the boiling-off vessel, all substantially as set forth. (3.) In an apparatus for the manufacture of carbon-dioxide from furnace or other mixture of gases containing CO₂, in which the said gases pass successively through a series of bicarbonating vessels containing CO₂ absorbing lye or liquor, a separate boiling-off vessel arranged so as to be charged by the action of gravity, said vessel having a shifting valve through which the atmosphere in said vessel may escape when the latter is being charged, and the contents of which vessel are raised into the last of the series of bicarbonating vessels by causing said contents to be heated after the CO₂ exit is shut, so that a sufficient pressure is developed within said vessel, substantially as set forth. (4.) The apparatus for use in the manufacture of carbon-dioxide from furnace or other mixture of gases containing CO₂, substantially as described and illustrated.

(Specification, 8s. ; drawing, 1s.)

No. 19886.—16th August, 1905.—HILARY QUERTIER, of Woods’s Hotel, Dunedin, New Zealand, Engineer. An improvement in and relating to trolley-wheels for electric traction.*

Extract from Specification.—According hereto, a pin upon which the trolley-wheel is revolvably mounted is hollow, and has a flange head which is received in a recess in the side of the jaw in which the wheel is mounted. The pin is secured within the jaw by any convenient means, such, for instance, as a set-screw. The pin is designed to carry solidified lubricant which is delivered to the wheel through a hole in the pin. The pin is solid at one end, and its opposite end is closed by a screw plug through which works the spindle of a plunger sliding within the hollow of the pin and designed to force the lubricant through the hole referred to. A spiral spring threaded upon said spindle normally tends to project the plunger, which may be made of leather or the like.

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

(Specification, 4s. 3d. ; drawing, 1s.)

No. 19895.—18th August, 1905.—JOHN MCMASTER, of Hokonui, Southland, New Zealand, Farmer. Improved safety mouth for flax-scutching machines.*

Claims.—(1.) In a flax-scutching machine, a safety mouth comprising a bar having curved horns and a concave breast so arranged that a slot is provided between the bar and guard, substantially as set forth. (2.) The combination and arrangement of parts comprising the improved safety mouth for flax-scutching, substantially as and for the purpose set forth and illustrated on the drawing.

(Specification, 1s. 6d. ; drawing, 1s.)

No. 19953.—31st August, 1905.—THE RUBBERISED LEATHER AND TYRE COMPANY, LIMITED, carrying on business as Manufacturers, and having their registered office at 97 Queen Street, Melbourne, Victoria, Australia (assignees of Philip Magnus, of 103 Union Street, Northcote, Collector, and Timothy Joseph Davis, of 8 Grant Street, North Fitzroy, Artist and Photographer, both of Victoria aforesaid). Process of preparing leather.

Claim.—An improved leather, and the described process of preparing the same, consisting of leather which is softened, stretched, and then dried either artificially or naturally ; then buffed up on the flesh side, and then sprayed or sprinkled with or bathed in a clarifying solution composed