778
THE NEW ZEALAND GAZETTE.
No. 19

liquid to which has been added a small amount of oil, soap,
or the like, with or without the further addition of small
amounts of acid and of a metallic or an alkaline earthy salt
or salts, and in conveying the said mixture of particles to or
through the surface of the liquid, substantially as described.
(3.) The described method of separating the metalliferous
particles from the gangue of ores, which consists in sub-
merging the crushed ore in a body of liquid, and in conveying
to or through the surface of the liquid while supported on
a smoothly moving solid support which carries the mixed
particles alternately up, through, and down to the level sur-
face of the liquid, substantially as described. (4.) In the
separation of solid particles of different characters in a mix-
ture of such particles, a vessel containing a liquid in which
the said mixture is immersed, and a mechanical conveyor
supporting the mixed particles so as to bring them to or
through the level surface of the liquid, substantially as de-
scribed. (5.) In the separation of solid particles of different
characters in a mixture of such particles, a conveying device
the walls of which are moved with respect to a body of liquid
in which they are partially submerged and are adapted to
pick up and support the said mixed particles when immersed
in the liquid and to convey them to or through the surface
of the said liquid, and a baffle or baffles to prevent the re-
transference of the already separated particles to the walls
or interior of the conveyor, substantially as described.
(6.) Apparatus for the separation of solid particles of
different characters in a mixture of such particles constructed
and operating substantially as described and illustrated.
(Specification, 8s.; drawing, 1s.)

No. 20534.—6th January, 1906.—LA SOCIÉTÉ ANONYME
WESTINGHOUSE, of 45 Rue de l’Arcade, Paris, France, Manu-
facturers, and MAURICE LEBLANC, of Villa Montmorency,
Auteuil, Paris, France, Engineer. Improvements in or re-
lating to ejectors.

Claims.—(1.) In a convergent and divergent delivery-
nozzle of an ejector or similar jet apparatus for compressible
fluids, the division of the convergent portion of the nozzle
into a series of separated sections, and means for automatically
controlling the pressure at the outlet of each separated section,
substantially as and for the purpose set forth. (2.) In a jet
apparatus or ejector of the kind described, a convergent
nozzle consisting of a series of separated sections, each section
opening into a separate chamber, the pressure within which
is controlled by a suitable loaded or spring valve, substan-
tially as and for the purpose specified. (3.) An ejector for
compressible fluids, constructed substantially as described
with reference to Fig. 6. (4.) An ejector for compressible
fluids, constructed substantially as described with reference
to Fig. 7.
(Specification, 9s. 6d.; drawings, 2s.)

No. 20563. — 11th January, 1906. — HUGH MYDDLETON
BUTLER, of Kirkstall Forge, near Leeds, York, England,
Ironmaster. Improvements in axles for road vehicles.

Extract from Specification.—Now, according to the present
invention, the bed of the axle is composed of two girders
arranged with their webs vertical, while the flanges are hori-
zontal, the said girders being placed side by side, but a little
distance apart. To each end of such a bed I attach a wheel-
carrying member, by forming or providing each of the said
members with an inwardly extending central vertical wing,
greater in depth than the depth of the girders, and adapted to
pass in between the ends of the said two girders, the latter
being bolted or riveted through their webs to the central wing.
By making the central wing of greater depth than the depth
of the girder-bed, the wing not only forms a means of attach-
ment for the end of the bed, but also forms a central diagonal
strengthening piece or stay, and this without weakening
or interfering with the flanges of the bed, the said bed being
secured to the wheel-carrying members by riveting through
the webs. Moreover, I am able to provide horizontal ribs
on each side of this wing to fit above and below the two girders,
and I am further enabled, by this construction, to rivet
the springs or spring-seats to this wing without weakening
the girders; and, moreover, by thus forming the bed of two
girders connected to the wheel-carrying members as de-
scribed, I am enabled to distance the said girders of the bed
apart in between their end members, which is convenient
when they are required to receive between them bolts, sockets,
distance-pieces, or other fixtures, as, for instance, when the
axles are required to be used as steering-axles, or for other
purposes, which fixtures can thus be riveted or secured to
the girder-webs instead of to their flanges.
[NOTE.—The above extract from the specification is inserted in place
of the claims.]
(Specification, 8s.; drawing, 1s.)

No. 20583.—17th January, 1906.—EDWIN PHILLIPS, of
533 Collins Street, Melbourne, Victoria, Australia, Patent
Attorney and Engineer (nominee of Horace Fowler Brown,
of 703 Chamber of Commerce, Chicago, Illinois, United
States of America, Mining Engineer). Method of treating
ores.

Claims.—(1.) The process of treating finely divided ore,
which consists in showering the ore downward in a stack,
and subjecting it for initial treatment, while in suspension,
to a highly heated atmosphere moving in the same direction,
and causing the ore thus initially treated to discharge from the
stack into a reverberatory chamber wherein the unvolatilised
molten metal constituent of the ore is caused to separate
by gravity from the slag-producing constituents. (2.) The
process of treating finely divided sulphide ores according
to claiming clause 1, characterized by employing, as the
highly heated atmosphere supplied to the stack, an oxidizing
atmosphere. (3.) The process of treating certain finely
divided sulphide ores according to claiming clause 1, charac-
terized by subjecting the ore first to an oxidizing atmosphere
and then to a reducing atmosphere while descending through
the stack. (4.) The process of treating finely divided iron,
lead, or copper oxides according to claiming clause 1, cha-
racterized by employing, as the highly heated atmosphere
supplied to the stack, a reducing atmosphere. (5.) The
process of treating finely divided ore according to claiming
clause 4, characterized by introducing the reduced metallic
constituent of the ore, discharged from the stack, into the
reverberatory chamber beneath a covering of molten slag,
thereby to protect the metal against oxidation, and thus
prevent interference with its separation from the slag-making
constituents.
(Specification, 14s.; drawing, 2s.)

No. 20587. — 17th January, 1906. — JAMES SNODGRASS,
of Stand No. 721, Pine Road, Troyeville, Johannesburg,
Transvaal, Chemical Engineer. Improvements in means
for precipitating gold and silver from cyanide or other solu-
tions.

Claims.—(1.) Apparatus of the nature indicated, comprising
the box in which are alternately arranged the permeable
anodes and cathodes, and in which the cathode is made
of a screen or gauze of very fine mesh, or of woven
fabric or cloth of a suitably fine texture treated to render
it a conductor, and adapted to extract the precious metals
from the solution containing the same by passing it once
through the box at a suitable low velocity, substantially
as described. (2.) In apparatus of the nature indicated,
a cathode consisting of a textile fabric or cloth of a
suitably fine texture stretched and secured upon a frame,
and rendered a conductor by a coating of plumbago, and
treated with a solution of a salt of lead or other heavy metal,
and subsequently with a solution of an alkaline carbonate
or sulphate, substantially as and for the purpose described.
(3.) In apparatus of the nature indicated, a cathode con-
sisting of a frame upon one or both sides of which is placed
a piece of wire gauze of very fine mesh, and over the gauze
a piece of a textile fabric of a suitably fine texture, the textile
material being treated to render it a conductor, substantially
as and for the purposes described, and as shown in Fig. 6
of the drawings. (4.) In apparatus of the nature indicated,
the combination with the box of the alternate cathodes and
anodes and the iron or other suitable metal plate upon which
the cathodes rest and by means of which they are placed
in electrical connection, said cathodes being made of a screen
or gauze of a very fine mesh or of woven fabric or cloth of a
suitably fine texture treated to render it a conductor, sub-
stantially as described and shown. (5.) Apparatus of the
nature indicated, having its several parts constructed and
arranged to operate in combination, adapted to extract the
precious metals from the solution containing the same by
passing it once through the box at a suitable low velocity,
substantially as described in connection with and as illus-
trated in the drawings.
(Specification, 8s.; drawings, 2s.)

No. 20595. — 18th January, 1906. — FRIEDRICH WILHELM
BÜHNE, of Freiburg, Breisgau, Baden, Germany, Manu-
facturer and Engineer. Improvements in or relating to pipe
or like joints.

Claims.—(1.) Forming a pipe-joint by inserting one pipe
within a socket-end, introducing a layer of malleable metallic
threads, and compressing same, substantially as set forth.
(2.) Forming a pipe-joint by inserting one pipe within a socket-
end, introducing a tow-gasket, followed by a layer of malleable
metal wires, and compressing the same, substantially as set