Nov. 10.] THE NEW ZEALAND GAZETTE. 2737

agitated transversely to the direction of said flow, substantially as described and explained. (3.) In improved vibrating trough for concentrating finely divided metalliferous materials, the combination with a series of connected baffled runs, or channels, or cul-de-sacs as set forth of a hopper-chamber with inclined faces and a bottom discharge to the first of said runs or channels, substantially as described and explained. (4.) In improved vibrating trough for concentrating finely divided metalliferous materials, the combination with a series of connected baffled runs, or channels, or cul-de-sacs as set forth of perforated pipe supplying a spray over or at the baffles of said cul-de-sacs, substantially as described and explained. (5.) The combination and arrangement together of all the parts or integers forming an improved vibrating trough for concentrating finely divided metalliferous materials, substantially as described and explained, and as illustrated in the drawing.
(Specification, 4s.; drawing, 1s.)

No. 18586.—13th October, 1904.—EDWARD JOHN SWYNY of Cameron Street, Balmain, near Sydney, New South Wales, Australia, Mining Engineer, and SAMUEL GEORGE PLUCKNETT, of “Clifton,” Dickson Street, Newtown, near Sydney aforesaid, Company-manager. Improved process for the extraction of normally buoyant mineral particles from slimes, tailings, and like metalliferous materials.

Claims.—(1.) Improved process for the extraction of normally buoyant mineral particles from slimes, tailings, and like metalliferous materials, consisting of or involved in the step-by-step treatment of washing, screening, classifying, and separate concentration of the classified products, substantially as described and explained. (2.) In and for the extraction of normally buoyant mineral particles from slimes, tailings, and like metalliferous materials, the combination and arrangement together of various machines, launders, and driving-devices constituting a complete installation of plant as and for the purposes and substantially as described and explained, and as illustrated in the drawings.
(Specification, 3s. 6d.; drawing, 1s.)

No. 18594.—11th October, 1904. — HENRY DROUTLEGE, of Vermont Street, Auckland, New Zealand, Engineer. An improved registering and number-recording machine.

Extract from Specification. — The mechanism is set going by the handle A being turned once, and thereby the rod F is made to draw down the projection J, whereby the lever K is depressed and with it the driving-pawl O and angle-formation I, the result of which is that by the pawl O engaging and pushing one of the pins W the plate U is moved one-tenth of its circumference onwards and kept there by the stop and tension pawl S until by the next turn of the handle A the plate U is again turned one-tenth of its circumference. When the ninth turn is made the flattened projection d on the plate e engages the pin b and lifts the lever K1 up clear of the pins W, the pawl O1 at the same time falling back on to the next pin; on the tenth turn being made the projection d leaves the pin b and the pin f engages the raised top of the lever K1 and depresses it, whereby the plate U1 is caused to move round one-tenth of its circumference in the same manner as already described with the plate U, and thus registers the tens to the units registered by the plate U; and when the plate U1 of this wheel has been thus driven round another set of exactly the same mechanism rotates the wheel showing the hundreds, and so the multiplication can be carried on as far as may be required or desired. Spokes s radiate from the hubs c to the outer rims x, on which the various numbers to be registered are shown. The finger projection of the driving-pawl O is made with the recessed angle so that the pin W may fit closely into it and so be held firmly there by the pressure of the stop and tension pawl S against one of the lower pins W as is shown in Figs. 1 and 2.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 7s. 6d.; drawings, 2s.)

No. 18598.—13th October, 1904.—EDWIN PHILLIPS, of 533, Collins Street, Melbourne, Victoria, Australia, Patent Attorney and Engineer (nominee of Samuel Ridgway Kennedy, of Bourse Building, Philadelphia, Pennsylvania, United States of America, Inventor). Improvements in processes of treating milk.

Claims.—(1.) The process of treating milk and the like, consisting of condensing the milk by evaporation, lowering the temperature until the sugar of milk and salts crystallize, and separating them by mechanical filtration. (2.) Purifying sugar-of-milk crystals removed from condensed milk by filtration, which consists in washing the same at a low temperature with an alkaline solution in which the sugar of milk is insoluble. (3.) Recovering the salts removed from sugar of milk by washing the latter at a low temperature with a solution in which the milk-sugar is insoluble by evaporating the wash-water to dryness. (4.) The process of treating milk and the like, consisting of condensing the milk by evaporation, lowering the temperature until the sugar of milk and salts crystallize, separating them by mechanical filtration, and subsequently separating the milk-sugar from the accompanying albumen by coagulating the latter and removing it by filtration. (5.) A milk-product made by condensing milk, cream, or any combination thereof in a vacuum to a thick creamy consistency, cooling the same until the sugar of milk and accompanying salts crystallize out, and removing the same by any mechanical means as filtration. (6.) A milk product made by condensing milk, cream, or any combination thereof to a thick creamy consistency, cooling the same until the sugar of milk and accompanying salts crystallize out, removing such crystals by any mechanical means, and cooking, aerating, and cooling the filtrate. (7.) A milk-product made by separating the cream from the milk in any suitable manner, and preserving the former, condensing the milk, cooling the same to cause the sugar of milk and salts to crystallize out, removing the latter by any suitable means as filtration, and recombining the cream with the filtrate by spraying the two together in a high vacuum. (8.) The process of combining condensed milk and cream by spraying the two together in a high vacuum.
(Specification, 5s. 6d.; drawing, 1s.)

No. 18599.—13th October, 1904. — POSITIVE ROTARY PUMPS, LIMITED, of 23, Northumberland Avenue, London, England, Manufacturers (assignees of Francis Whitwell Brackett, of Hythe Bridge Ironworks, Colchester, Essex, England, Engineer). Improvements in pumps for liquids or fluids.

Extract from Specification.—The improved pump comprises a pump-chamber a in the interior of which a crank-shaft b, with crank-webs b¹ and crank-pin b² adapted to revolve in either direction, is mounted in suitable bearings; a piston c mounted on a pin c¹ fixed to the covers a¹ a² of the pump-chamber a, said piston may be adapted to revolve upon the pin; a pump-frame d embracing the piston c and adapted to be reciprocated upon same, said pump-frame having machine l internal faces d¹ d² parallel to one another, so adjusted and arranged as to allow the frame to reciprocate upon the piston so that they may be set closer together when the wear of the parts renders it necessary. The pump-frame d also has an extension consisting of an arm d³ terminating in an eye d⁴, the latter being mounted upon the aforesaid crank-pin b², the revolution of the crank-shaft thus giving a reciprocating and oscillating motion to the pump-frame d.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 3s.; drawings, 2s.)

No. 18605.—14th October, 1904.—HENRY SYMES, of Harrietville, Victoria, Australia, Mine-manager. Improvements in apparatus for elevating alluvial or other earths or materials.

Extract from Specification.—The cycle of operations with my invention is as follows: One man, the engine-driver, stands in the engine-house and controls the tautening and hauling drums, and another man, the scoop-filler, stands between the two scoops. If, as seen in Fig. 1, one scoop has been lowered back to the face O, and the other scoop is nearing the dumping-grating, the scoop-filler closes and locks the bottom or back of the said scoop. He then seizes the handles G on the scoop, and points the nose of the same into the earth. A signal to the engine-driver is then given, indicating that a feeding-speed is required on the hauling-rope. By the handles he then so directs the said scoop that it is fully charged, and another signal is communicated to the engine-driver that the hauling-speed is to be employed. The upper scoop by this time will have reached the dumping-grating, and the striker T will have liberated the contents on to the same. The engine-driver will then lower the said scoop to the face O, and will then slacken the supporting-rope B. This will permit the scoop to settle upon the face, and the scoop-filler charges it similarly to the one before described.
[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 5s. 6d.; drawing, 1s.)