Aug. 30.] THE NEW ZEALAND GAZETTE. 1653

the vehicle-body, and which are placed successively on the ground. (2.) In apparatus such as is referred to in claim 1, allowing the rollers to move radially to the axle, and interposing springs between the body and the rail. (3.) In apparatus such as is referred to in claim 2, the employment of a lever pivoted to the body, and on which the springs act. (4.) The combination of parts interposed between the rollers and body, substantially as described, and illustrated in the drawings. (5.) In a foot for supporting a vehicle, the combination of a box, a block free to move inside the box, a spoke, and a universal joint connecting the spoke to the block. (6.) Traction-engines and other vehicles substantially as described, and illustrated in the drawings.
(Specification, 4s. 6d.; drawings, £1 1s.)

No. 12882.—17th August, 1900.—SAMUEL MARION LISSAU, of 857, North Forty-first Street, Philadelphia, Pennsylvania, United States of America, Gentleman. Improvement in process and apparatus for concentrating ores anhydrously.

Claims.—(1.) The described process of anhydrously concentrating comminuted material containing precious metal, consisting in agitating a mass of said material, forming strata of its particles in accordance with the specific gravity thereof, retaining the concentrated product at the bottom of said mass, removing the lighter waste material in a dry condition from the upper strata of the agitated mass, through the latter and beneath the concentrated product retained at the bottom thereof, and discharging said waste material exterior to said mass, substantially as set forth. (2.) The described process of anhydrously concentrating comminuted material containing precious metal, consisting in continuously agitating a mass of said material, forming strata of its particles in accordance with the specific gravity thereof, retaining the concentrated product at the bottom of said mass, maintaining a layer of dry waste material above the concentrated product by supplying raw material to said mass during its agitation, continuously removing the lighter waste material, in a dry condition, from the upper strata of the agitated mass, through the latter, and beneath the concentrated product retained at the bottom thereof, and discharging said waste material exterior to said mass, substantially as set forth. (3.) In an apparatus for anhydrously concentrating comminuted material containing precious metal, the combination of a drum, means for rotating the same, and means within the drum for agitating and stratifying the material during rotation, said means being adapted by rotation of the drum to catch and deliver the material of the upper strata to a discharge-chute within the drum, substantially as set forth. (4.) In an apparatus for anhydrously concentrating comminuted material containing precious metal, the combination with a drum of means for rotating the drum, means arranged to deliver said comminuted material in a dry condition to said drum during the operation of the latter, means within the drum for agitating and stratifying the material during rotation, said means being arranged to remove the lighter waste material, in a dry condition, from the upper strata of said mass, through the latter, and beneath the concentrated product retained at the bottom thereof, and means to discharge said waste material from said drum, substantially as set forth.
(Specification, 8s.; drawings, 16s.)

No. 12883.—17th August, 1900.—ABSALOM YAGER, of Sydney, New South Wales, Traveller. Improvements in whippletrees and horse-draught gear for common road vehicles and agricultural implements and machinery.

Claims.—(1.) Whippletree draught gear, comprising a splinter-bar or a balance-bar and two swingle-bars, whereof said swingle-bars are capable of attachment to said splinter-bar or balance-bar at their middle points, or at points between their middles and ends, when used in a two-horse gear or a three-horse gear respectively, substantially as described. (2.) A whippletree draught gear for three horses wherein the traces for all three horses are carried by two swingle-bars, which swingle-bars are hung to a balance-bar or a splinter-bar each at a point approximately one-third of its length from its inner end, substantially as described. (3.) In a whippletree draught gear for three horses, wherein the draught is taken on two swingle-bars to which the traces are directly fastened, said swingle-bars being hung to a balance-bar or a splinter-bar, rollers, bushed pins, or other bearings on the inner ends of the swingle-bars, around which said rollers, bushed pins, or bearings the traces, or attachments connecting the trace-ends, are reeved and permitted to run freely for the purpose of equalising the draught as between the three horses, substantially as described. (4.) A swingle-bar for convertible two- and three-horse draught gear, having two places of attachment for connecting it to a balance-bar or splinter-bar, said places of attachment being made one at the middle of the bar and the other distant approximately one-third the length of the bar from one of its ends, substantially as described. (5.) Convertible two- and three-horse draught gear, having only two swingle-bars, wherein, by changing the points of attachment of said swingle-bars, the same are positioned to receive the traces of two or three horses respectively, and to balance the draught of said horses at said points of attachment, substantially as described. (6.) In whippletree horse-draught gear, the combination of a splinter-bar or a balance-bar, having two points of attachment at either end to carry the swingle-bars couplings, and two swingle-bars each having two points of attachment adapted to connect with said couplings, one of such swingle-bar attachments being in the centre of the bar and the other at a point approximately one-third the length of the bar from one of its ends, substantially as described.
(Specification, 5s. 6d.; drawings, 8s.)

No. 12886.—17th August, 1900.—EDWARD WATERS, Jun., a member of the firm of Edward Waters and Son, of 131, William Street, Melbourne, Victoria, Patent Agent (nominee of Spiritine Limited, of 5, Carteret Street, Westminster, England, Manufacturers, assignees of Bernard Hoffmann, of 23, Le Peletier, Paris, France, Engineer). Improvements in fuel for spirit-stoves, and in the method of making the same.

Claims.—(1.) An improved fuel, consisting of alcohol or the like, occluded in a soap-like mixture of stearine and an alkali, substantially as described. (2.) An improved fuel, consisting of alcohol or the like, occluded in a soap-like mixture of stearine and other animal or vegetable fatty matter and an alkali, substantially as described. (3.) The method of manufacturing an improved fuel consisting in subjecting alcohol or the like, stearine and other animal and [or] vegetable fatty matter, and an alkali to heat, and agitating same, substantially as described.
(Specification, 2s.)

No. 12895.—28th August, 1900.—THOMAS BELL, of Ellerslie, near Auckland, New Zealand, Merchant. An improvement in packing starch.

Claim.—Packing starch in the form of a powder, substantially as described.
(Specification, 1s.)

No. 12896.—22nd August, 1900.—JOHN WALKER NEWALL, of Forest Hall, Ongar, Essex, England, Engineer. An improvement in machines for cutting hair and wool.

Claims.—In machines for cutting hair and wool: (1.) The improved pin and bearings for supporting the vibrating lever carrying the cutter of such machines, constructed so that the side-thrusts are taken by portions of the pivot-pin, which are of full diameter for a short distance above and below the eye of the lever, and which work in bearings in the shear-body, while the portions of the pin above and below the parts of full diameter are reduced, and the thrust at right angles to the side-thrusts is taken up by blocks mounted in the bearings of the pin, and having V-shaped grooves to permit the pin to vibrate to the necessary extent, substantially as described. (2.) Forming the outsides of the blocks referred to in the preceding claim slightly rounded in the direction of their length, so as to enable them to adjust themselves to the bearing-edges of the pivot, substantially as described. (3.) The improved construction of pin and bearings for the vibrating lever carrying the cutter, constructed and operating substantially as specified.
(Specification, 2s. 3d.; drawings, 3s.)

No. 12897.—22nd August, 1900.—ELMER GATES, of Chevy Chase, Maryland, United States of America, Scientist. Improvements relating to the separation of mixed granular or pulverised substances.

Claims.—(1.) The method of separating diamagnetic particles from a mixture containing them which consists in feeding the mixture into a relatively intense part of a magnetic field, continuing it in and subjecting it to the action of the magnetic field until the diamagnetic particles to be separated have gradually moved out from the mixture into a relatively weak part of the field, and then collecting said particles separately as heads, substantially as described. (2.) The method of diamagnetic separation which consists in introducing the mixture into a zone of median magnetic intensity, agitating the mixture while detained in said zone until the particles of varying susceptibility move in opposite directions, and collecting the separated particles, and conducting them away separately, substantially as described. (3.) The method of diamagnetic separation which consists in feeding the mixture on to a support midway between the