1708
THE NEW ZEALAND GAZETTE.
[No. 67

No. 18972.—16th January, 1905.—JOHN WILLIAM MURDOCK, of 69A, Great King Street, Dunedin, New Zealand, Labourer. A scraper for cleaning tramway-lines.

Extract from Specification.—One side of the scraper lies flat on the broad part of the rail; the other side is turned up to avoid striking the asphalt or metal. Two false plates are fitted under the front part of the scraper to prevent it from wearing. They are to be renewed when worn out. The tongue is shaped to fit the groove of the rail.

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

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

No. 18989.—25th January, 1905.—RICHARD MICHAEL CARROLL, of Mabel Street, Petone, Wellington, New Zealand, Engineer. Improved pipe-wrench and shifting spanner.*

Extract from Specification.—According hereto, a metal frame is shaped at its lower end to serve as a handle, and at one side of its upper end is formed into a lower grip-jaw, or has such a jaw connected to or inserted in it. The upper grip-jaw projects at right angles from a stem which has rack-teeth upon its front edge, the lower end of said stem being shaped to form a handle. The stem passes through the frame referred to, and the teeth upon it are adapted to engage in corresponding recesses formed in a metal keep carried within a recess in the frame and curved at its upper end to a radius struck from a point near the middle of the frame. The recess is so shaped that the keep may oscillate therein, so that when the handles are drawn together the jaws close upon the object to be turned, and when the grip upon the handles is released the upper jaw moves apart from the lower and disengages the object. Within the frame, upon the back edge of the stem, is a slidable bearing-piece, a part of the back of which is curved to a radius struck from the point previously referred to. A spring within the frame normally tends to press the bearing-piece against the back of the stem, and the bearing-piece has a stud projecting through a slot in the frame whereby the bearing-piece may be drawn down to permit of the free movement of the stem for adjustment of the jaws.

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

(Specification, 10s.; drawings, 4s.)

No. 19154.—12th March, 1904.—EDWIN RUDOLPH GROTE and MILTON VICTOR ELY (trading as “Foster and Co.”), of Worple Road, Wimbledon, Surrey, England, Electrical Engineers (assignees of the said Edwin Rudolph Grote and Milton Victor Ely and Charles Edwin Foster, of “Hazel-dene,” Kimberley Road, Chesterton, Cambridge, England, formerly of Worple Road, Wimbledon aforesaid, Electrical Engineers). Improvements in and relating to electric arc lamps.

[This is an application under section 106 of the Act, the date given being the official date of the application in Great Britain.]

Claims.—(1.) In an electric arc lamp in which a thermo-expansive wire or conductor is employed for controlling or operating the carbon-clutch or its equivalent, means whereby only a comparatively small portion of the expansion of said conductor is employed for actuating the carbon-clutch, substantially as and for the purposes set forth. (2.) In an electric arc lamp in which a thermo-expansive conductor is employed for controlling or operating the carbon-clutch, means, operatively connected to said conductor and to the carbon-clutch, whereby not more than half the total motion due to the expansion of said conductor is utilised to operate the clutch for striking the arc, substantially as and for the purposes set forth. (3.) In an electric arc lamp in which a thermo-expansive conductor is employed for actuating and controlling the carbon-clutch or its equivalent in such a way that part of the motion due to the expansion of said conductor is lost or ineffective, a rotatable part operatively connected to said thermo-expansive conductor and to the carbon-clutch, and also operatively connected to a spring or its equivalent that places said rotatable part under tension, the arrangement being such that as the spring expands its mechanical advantage in relation to the carbon-actuating mechanism decreases, and vice versâ; when the spring contracts its mechanical advantage in relation to the carbon-actuating mechanism increases, the spring force decreasing when the carbon has been operated so as to strike the arc, substantially as described with reference to the drawings, and for the purposes specified. (4.) In an electric arc lamp, the combination with a thermo-expansive conductor for operating and controlling the carbon-clutch or its equivalent, of an angularly arranged lever operatively connected at one end to said conductor and having its other end under tension, and a link or connection pivoted at one end on the same centre as said angular lever and operatively connected therewith so that the lever has an initial free movement before it actuates the link, said link being operatively connected to the carbon-clutch or its equivalent, all substantially as described with reference to the drawings, and for the purposes set forth. (5.) In an electric arc lamp, the combination of the thermo-expansive wire or strip WW¹ fixed at one end to the lamp-frame and at its other end fixed to a pivoted lever or strut R², the said lever or strut being itself connected to the angular lever or rotatable part B fixed on the shaft F, which latter is provided with a projection or pin adapted to engage with either one or the other of the projections jj¹ on the clutch-operating lever E, the spring S being connected at one end of the part B and at its other end to the lamp-frame, substantially as described with reference to the drawings, and for the purposes set forth.

(Specification, 9s.; drawing, 2s.)

No. 19219.—16th March, 1905.—HERBERT ERNEST ROSS, of Equitable Buildings, George Street, Sydney, New South Wales, Australia, Consulting Engineer and Architect. Improved construction of the hulls of ships and boats.

Claim.—The hull of a ship the deck of which is approximately oblong or parallelogram in shape, sides projecting downwards from the long edges of the parallelogram, such sides being approximately in the form of equal segments of a circle, and an external bottom which longitudinally is of the same convexity as the curved lower edges of the segmental sides, but transversely is concaved, dished, or re-entrant angled, as and for the purposes specified.

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

No. 19257.—13th April, 1904.—CONSOLIDATED RUBBER TIRE COMPANY, a corporation of the State of New Jersey, of No. 15, Exchange Place, Jersey City, New Jersey, United States of America (assignees of Alvaro Silas Krotz, of No. 272, Clifton Avenue, Springfield, Ohio, United States of America, Mechanic). Rubber tires.

[NOTE.—This is an application under section 106 of the Act, the date given being the official date of the application in the United States of America.]

Extracts from Specification.—The rubber tire to which our invention relates is of that type which employs a series of endless retaining bands running through the base of the rubber portion of the tire, these retaining-bands forming in effect dovetailed grooves between the respective bands and the sides of the channel to receive the rubber portion of the tire and retain the same in place. In the drawings a represents the wooden felly of a vehicle-wheel, and b a metallic rim encircling the periphery of wooden felly. Adapted to be secured to the sides of the wooden felly by bolts c¹ or other suitable fastening devices are metallic rings c, which extend beyond the rim b and form with the same a metallic channel around the periphery of the wheel. . . . The rubber tire d is formed of a shape at the base to fit the metallic channel thus formed. . . . Extending through the base of the rubber portion d of the tire is a series of metallic retaining strips or bands e, wrapped with layers of fabric e¹, as shown.

[NOTE.—The above extracts from the specification are inserted in place of the claims.]

(Specification, 7s.; drawings, 2s.)

No. 19446.—10th May, 1905.—EDWARD NEEDHAM WATERS, a member of the firm of Edward Waters and Son, of Nos. 414–418, Collins Street, Melbourne, Victoria, Australia, Patent Attorneys (nominee of John Guimaraes, of Rio de Janeiro, Brazil, Agriculturist). Improved process for sterilising and preserving meat, fish, and other alimentary substances.

Claims.—(1.) The sterilisation and preservation of alimentary substances by means of electrolysis, produced by the passage of a current of electro-motive force and of an intensity proportionate to the resistance of the immersed substances and also of their respective quantity, substantially as described. (2.) In a process for sterilising and preserving alimentary substances, the electrolytic action operating in all its effects in a solution of chloride of sodium, more or less, of one to two thousand (1–2000) for substances to be preserved, and of one to five thousand (1–5000) for substances to be sterilised, substantially as described.

(Specification, 2s. 3d.)