2982
THE NEW ZEALAND GAZETTE.
[No. 96

No. 21790.—12th September, 1906.—JOSEPH LEMINGTON RASTRICK, of Auckland, New Zealand, Engineer. An improved tube-scraper for cleaning the scale or other deposit off the interior of corrugated and other tubes.

Extract from Specification.—The scraping portion of this improved tool can be constructed from any kind of spring steel, formed or moulded or cut in forms that can be shaped to form spirals by elongation and joined to form coils which are mounted on a barrel working on a rod or mounted on a rod direct, as is described.

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

(Specification, 7s. 6d.; drawing, 1s.)

No. 21802.—18th September, 1906.—JOHN FENTON, of Williamson Avenue, Grey Lynn, Auckland, New Zealand, Turncock, Grey Lynn Borough. An improved cock-box.

Claim.—For the purpose indicated, a box made of glazed earthenware, preferably decreasing in diameter towards the top, gaps in the bottom rim of the box for bestriding a pipe, lugs inside the box and near the upper end thereof, a lid resting upon the lugs and closing the top of the box, and side flanges at the bottom of the box, substantially as set forth.

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

No. 21816.—20th September, 1906.—GEORGE FINDON WIGHT, of Auckland, New Zealand, Teacher. A pen and pencil stay attachment to finger for writing purposes.

Claims.—(1.) The pen and pencil stay attachment to finger specified consisting of a piece of wire bent to form a loop shaped to fit the index finger of the hand of the writer, and having one end of wire formed to project slightly out from under and beyond the index finger so that upper end of penholder or pencil will rest thereon, and having other end of wire formed long to project under other fingers and to just under the little finger for the purpose set forth as described and illustrated. (2.) In the pen and pencil stay attachment to finger specified covered by claim 1, the piece of wire formed with a loop and one end short and the other end longer than the short end for the purpose set forth as described and illustrated.

(Specification, 3s. 6d.; drawing, 1s.)

No. 21832.—27th September, 1906.—WILLIAM MIDDLETON, of Boulder Road, Kalgoorlie, Western Australia, Engineer, and HERVOC NUGENT GRAHAME COBBE, of Boulder Road, Kalgoorlie, Western Australia, Metallurgist. Improvements in grinding-pans.

Claims.—(1.) In improvements in grinding-pans, a pan as 3 so mounted on a frame as 1 as to be movable only in a vertical direction, substantially as and for the purposes described and illustrated. (2.) In improvements in grinding-pans, compensating levers actuated by weights to exercise a predetermined constant pressure between the grinding surfaces, substantially as described and illustrated. (3.) In improvements in grinding-pans, two or more compensating levers connected together and actuated by weights, substantially as described and illustrated. (4.) In improvements in grinding-pans, a frame as 1, together with a subsidiary frame as 4, and a column as 5, in combination with a spindle as 6, gearing as 7, a yoke as 8, and a pan as 3, substantially as described and illustrated. (5.) In improvements in grinding-pans, a pan as 3, in combination with a frame as 1, having steady pins as 2, substantially as described and illustrated. (6.) In improvements in grinding-pans, a shoe or shoes held down to a frame as 4 by a collar or gear-wheel as 7 upon a spindle, a spindle as 6, a yoke as 8, and a muller-plate as 10, in combination with a vertically movable pan, substantially as described and illustrated. (7.) In improvements in grinding-pans, a pan containing one or more dies, and a muller with one or more shoes attached, in combination with compensating levers and weights, substantially as described and illustrated. (8.) Our improved grinding-pan, consisting of the parts constructed, arranged, and operated, substantially as described and illustrated. (9.) The improvements in grinding-pans, substantially as described and illustrated.

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

No. 21844.—26th September, 1906.—JOHN ANDERSON, of Moray Place, Dunedin, New Zealand, Brassfounder and Engineer. Improvement in pasteurisers or milk-heaters.

Claims.—(1.) In pasteurising-machines for raising the temperature of liquids to a certain height by steam-jacketing, the combination of such machine, otherwise made in the usual way, with a swinging arrangement contrived to lock said machine in an upright position or to lock same in positions suitable for cleaning or the like, said swinging arrangement being preferably made hollow for the easier admission and discharge of the steam, all substantially as described and as explained, and as illustrated in the drawing. (2.) In milk-heaters or pasteurizers, hollow bearings for the admission and discharge of steam, one being made larger and furnished with holes for locking the machine in the required position, either for work or for cleaning out, &c., so that these operations can be conducted without interfering with the heating arrangements, all substantially as set forth.

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

No. 21857.—2nd October, 1906.—PAUL DE BOKLEVSKY, of Ekaterinbourg, Russia, Mining Engineer. Improvements in centrifugal amalgamators.

Claim.—A centrifugal device for catching gold, consisting of several semispherical movable vessels, with edges bent outwards, fastened to a vertical revolving axle, and placed, with the exception of the exterior vessel, inside immovable vessels with edges bent inwards and furnished with central openings, the exterior movable vessel being surrounded on the top by a cylindrical hoop, down which the waste liquid material (such as mud) flows into a circular trough having a corresponding incline, and serving to drain the liquids into drainage troughs and canals.

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

No. 21858.—2nd October, 1906.—PETER MCKAY, GEORGE EATHER, ALBERT GERICKE, and JAMES HOGAN, all of Day Dawn, Western Australia, Blacksmith, Labourer, Engine-driver, and Sawyer, respectively. An improved drill-chuck.

Claims.—(1.) A drill-chuck head as a and a1 secured to a rod or spindle as a2, and said head formed with cruciform-shaped openings as a3, a4, which latter are provided with bushings as b1 and b2, the whole adapted to hold a drill as b5 and its yoke, substantially as set forth, and as illustrated in the drawings. (2.) A drill-chuck having a yoke formed with an eye as e, and having parts as d, d1, and d2, and provided with a traverse adjustment-nut as g, and spiral cushion spring as j, and locking-collars as h1 and j2, substantially as set forth, and as illustrated in the drawings. (3.) A drill-chuck head and its parts in combination with a yoke and its parts for securing the drill, said yoke having means for its traverse adjustment, and the whole in operative combination with a working-drill as b5, connected to a piston rod or spindle as a2, substantially and for the purposes set forth, and as illustrated in the drawings.

(Specification, 4s. 6d.; drawing, 1s.)

No. 21859.—30th January, 1906.—MATTHEW WILLIAM WALBANK MACKIE, of 45 Warwick Road, Ealing, Middlesex, England, Electrical Engineer. Improvements connected with dynamo electric machines and electric motors for maintaining a constant electro motive force under variations of speed.

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

Extract from Specification.—For the purpose of this invention a multipolar machine is used having four (or more) alternate magnet poles, which are wound in shunt in the usual manner, so that the magnetic flux passing through each pair of poles shall be the same in each pair, and, in addition, a main or compound wound coil (hereinafter called the “main winding”) is wound upon half the number of pairs of poles in the case of a four-pole machine, or in the case of a machine having six or more poles upon four or any other combination of such poles, in such a manner that if a current flows from the armature through the main winding it will tend to demagnetize the poles upon which it is wound. For the purpose of controlling the extent of this demagnetization, a variable resistance may be used as a shunt across the main winding or in series with it. Within the above-mentioned magnet poles is placed a series or wave-wound armature suitably wound for the number of poles used, and the shunt winding is connected