1328
THE NEW ZEALAND GAZETTE.
[No. 59

as set forth in claim 1, in combination with two pairs of rollers such as G, H, G¹, H¹, mounted on oblique axes, each pair of such rollers having corresponding convex and concave peripheries, whereby the plate as it is rolled through them may be turned out from the machine in the form of a shallow trough with curved sides, as and for the purposes specified. (4.) In machines for “buffing” or upsetting the edges of metal plates, two series of pressure and anti-friction rollers, and two pairs of rollers such as G, H, G¹, H¹, mounted on oblique axes, such pair of rollers having corresponding convex and concave peripheries, all in combination with any suitable pulling- or hauling-gear whereby the plate may be hauled through the machine, prevented from bending while being thus hauled, have its edges “buffed” or upset, and a portion of each side near its edges curved upwards so that it shall leave the machine in the form of a shallow trough, as and for the purposes specified.
(Specification, 5s. 6d.; drawings, 8s.)

No. 12734.—26th June, 1900.—HENRY STRONG DURAND, Physician and Surgeon, and ROBERT KENDALL McLELLAN, Machinist, both of Rochester, New York, United States of America. Improvements in stuffing-boxes.

Claims.—(1.) A stuffing-box comprising a hollow body, collars making a continuous changeable contact with surfaces at the ends of the body, and a shaft-bearing secured in the body between the collars, substantially as described. (2.) A stuffing-box comprising a hollow body, a shaft-bearing secured in the body, and a displaceable filling surrounding the shaft between the shaft-bearing and each end of the body, substantially as described. (3.) A stuffing-box comprising a hollow body, collars making a continuous changeable contact at the ends of the body with internal annular surfaces larger in diameter than the collars, and a shaft-bearing secured in the body between the collars, substantially as described. (4.) A stuffing-box comprising a hollow body, collars making a continuous changeable contact with surfaces at the ends of the body, a shaft bearing in the body movable in directions transverse to the axes of the body and bearing, and means for securing the bearing in different positions in the body, substantially as described. (5.) A stuffing-box comprising a hollow body, collars making a continuous changeable contact with surfaces at the ends of the body, and a shaft-bearing secured in the body between the collars, the bearing being a ball-bearing having only a single ring of balls, substantially as described. (6.) A stuffing-box comprising a hollow body, collars making a continuous changeable contact with surfaces at the ends of the body, and a shaft-bearing secured in the body between the collars, the bearing being composed of a case, bearing-rings fixed in the case, and forming a ball-channel, and a single ring of balls in the ball-channel, substantially as described. (7.) A stuffing-box comprising a hollow body having the parts 4 and 5, and provided with an internal shoulder 20 a the inner end of the part 5, and with a screw-plug 17 extending into the part 5, collars making a continuous changeable contact with the head of the screw-plug 17, and a surface at the front end of the part 4, and a shaft-bearing which is inserted in the part 5, and clamped therein against the shoulder 20 with the screw-plug 17, substantially as described. (8.) A stuffing-box as described in the preceding claim, having a shaft-bearing movable in the body in directions transverse to the axes of the body and bearing, and fixable in different positions between the screw-plug and shoulder, substantially as described. (9.) A stuffing-box comprising a hollow body having the parts 4 and 5, and provided with internal shoulders 12 and 20 at the inner ends of the parts 4 and 5 respectively, and with screw-plugs 13 and 17 extending into the parts 4 and 5 respectively, the plug 17 having an internal annular projection 19, a collar 15 smaller in diameter than the interior of the part 4, and a collar 21 smaller in diameter than the interior of the screw-plug 17, the collar 15 making contact with the end 14 of the plug 13, and the collar 21 making contact with the inside of the head of the plug 17, a coil spring bearing against the collar 15 and shoulder 12, and a coil-spring bearing against the collar 21 and projection 19, and a shaft-bearing which is inserted in the part 5 of the body and clamped therein against the shoulder 20 with the screw-plug 17, substantially as described. (10.) In a stuffing-box or other device comprising a ball bearing, the combination of a bearing-case, a screw 29 extending into a threaded hole in the case, bearing-rings in the case, one of the rings being threaded and engaging with a thread in the case and with that of the screw 29, and a ring of balls between the bearing-rings, substantially as described.
(Specification, 8s. 6d.; drawings, 8s.)

No. 12735.—26th June, 1900.—HENRY STRONG DURAND, of Rochester, New York, United States of America, Physician and Surgeon. Improvements in stuffing-boxes.

Claims.—(1.) A stuffing-box comprising a hollow body, shaft-collars making a continuous changeable contact with surfaces at both ends of the body, each of the collars being movable on the shaft on an axis transverse to that of the shaft, and a displaceable filling confined in the body between the collars, substantially as described. (2.) A stuffing-box comprising a hollow body having internal annular surfaces at its ends, and two or more shaft-collars, each being movable on the shaft on an axis transverse to that of the shaft, and two of said collars making a continuous changeable contact with said internal annular surfaces at the ends of the body, substantially as described. (3.) A stuffing-box comprising a hollow body having internal annular surfaces at right angles to its axis, a group of two or more shaft-collars interposed between said surfaces, each of said collars being movable on the shaft on an axis transverse to that of the shaft, and means for clamping the group of collars between said surfaces, substantially as described. (4.) A stuffing-box comprising a hollow body containing surfaces that loosely surround the shaft, and a filling consisting of a viscous fluid interposed between said surfaces and extending around the shaft in contact with the shaft, its viscosity being great enough to prevent its escape from between said surfaces, substantially as described.
(Specification, 6s. 3d.; drawings, 8s.)

No. 12744.—29th June, 1900.—THE BRITISH WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY (LIMITED), of Westinghouse Building, Norfolk Street, Strand, London, England, Manufacturers (assignees of Edwin Raud, of 214, Wood Street, Pittsburg, Pennsylvania, United States of America, Engineer). Improvements in governing internal-combustion engines.

Claims.—(1.) A device for governing gas-engines in which the admission-valve is connected with and its operation controlled by the governor, the proportion of gas and air in the motive fluid being regulated by means of separate regulating-cocks provided in the gas- and air-supply pipes, substantially as and for the purpose specified. (2.) The devices for regulating the admission of air and gas to a gas-engine cylinder substantially as described with reference to Figs. 1 and 2 or to Figs. 3 and 4 of the drawings, and operating as described. (3.) In a device for governing gas-engines in the manner described by regulating the quantity of mixed air and gas admitted into the cylinder, a pressure-reducing valve in the gas-supply pipe by which the pressures of the gas and air are equalised before mixing, so that the proportion of gas and air in the mixture remains substantially constant notwithstanding variations of load, substantially as described.
(Specification, 3s.; drawings, 10s. 6d.)

No. 12746.—26th June, 1900.—ALAN MACKENZIE McNEILL, of Wanganui, New Zealand, Farmer. Staple-extractor.

Claim.—A lever having a claw head with an opening in centre of claw, in combination with a movable claw similarly made, and the said movable claw having a heel in front of same to act as a fulcrum; the centre bolt or rivet being off the centre, thereby making the back of movable claw act as a weight to automatically open same.
(Specification, 1s. 6d.; drawings, 3s.)

F. WALDEGRAVE,
Registrar.

An asterisk (*) denotes the complete specification of an invention for which a provisional specification has been already lodged.

NOTE.—The cost of transcribing the specification, and an estimate of the amount required for copying the drawings, have been inserted after the notice of each application. An order for a copy or copies should be accompanied by a post-office order or postal note for the cost of copying.

The date of acceptance of each application is given after the number.

Provisional Specifications,

Patent Office,
Wellington, 4th July, 1900.

APPLICATIONS for Letters Patent, with provisional specifications, have been accepted as under:—

No. 12685.—15th June, 1900.—CHARLES DIXON, of Masterton, New Zealand, Contractor. An improved grip for securing clothes to lines.

No. 12689.—15th June, 1900.—JAMES FORSYTH, of Monor Terrace, Dunedin, New Zealand, Clerk, Railway Department. The treatment of New Zealand flax or other leaf-bearing fibres, combining the twofold operations of separating the fibres from the leaf and spinning the fibre in the one process.