Oct. 3.] THE NEW ZEALAND GAZETTE. 1951

and in a direction opposed to that of the furnace gases, and
in the second part of which they are acted upon by air,
water, and the gases from the first part of the furnace, under
a gradually diminishing temperature, substantially as
described. (2.) The treatment of ores of the kind described,
which consists in roasting the same in a two-part furnace,
in the first part of which they are heated with access of air
whilst moving through and in a direction opposed to that
of the furnace gases, and in the second part of which they
are mixed with sodium-chloride and acted upon by air,
water, and gases from the first part of the furnace,
under a gradually diminishing temperature, substan-
tially as described. (3.) The described process of treat-
ment of ores, which is characterized by the reduction of
the temperature in the furnace after said ores have passed
the hottest zone therein and during their passage there-
through in the same direction as and in company with the
evolved gases. (4.) The treatment of ores of the kind de-
scribed, which consists in roasting the same with access of
air and water in a furnace, and with the addition of chloride
of sodium when chloridizing, so that the temperature of the
ores shall become raised to the necessary degree to decom-
pose the sulphurets, and thereafter, following upon the
introduction of water and air, the temperature shall be
diminished whilst the ores are moving in the furnace in
company with and in the same direction as the evolved
gases, substantially as described. (5.) A process of treating
complex ores which contain sulphurets or are mixed with
sulphur or sulphurets, consisting in roasting the same in a
double furnace, in the first part of which furnace said ores
move in a direction opposite to that of the gases, and in the
second part of which they move with and in the same direc-
tion as said gases, which are introduced from the first part
of the furnace and mixed with water and air, so that the
temperature will be diminished gradually during treatment
in said second part of the furnace, substantially as described.
(6.) In the treatment of ores of the kind described, succes-
sively treating the same in a two-part furnace, in the first
part of which their temperature is raised to desulphurise
whilst they are moving in a direction opposite to that of the
furnace gases, and in the second part of which water and
air are omitted, and salt also added when chloridizing is
necessary, and the temperature reduced whilst said ores are
moving in the same direction as and in company with the
evolved gases, substantially as described.
(Specification, 10s.; drawings, 2s.)

No. 14057.—26th September, 1901.—CHARLES HARRISON
WARD, of Australia Hotel, Sydney, New South Wales, Metal-
lurgist. An improved process of treating oxidized, sulphated,
or chloridized ores for the extraction of metals and metallic
products therefrom.

Claims.—(1.) A process of treating sulphated complex ores
comprising the following steps, in combination, in the order
stated: Firstly, leaching with hot dilute sulphuric acid;
secondly, precipitating the iron by oxidizing it in the solution
or by boiling the solution; thirdly, precipitating the silver
with chloride of sodium or by contact with copper; fourthly,
extracting the zinc by precipitation with an alkaline carbonate
or by crystallization of the sulphate, followed by precipitation
with an alkaline carbonate; fifthly, triturating the ore
residue of the leaching process in hot concentrated brine;
sixthly, precipitating the lead by adding an excess of cold
water to the solution obtained from the triturating-pans;
and, finally, adding an alkaline carbonate thereto, substan-
tially as described. (2.) A process of treating sulphated
complex ores comprising the following steps, in combina-
tion, in the order stated: Firstly, leaching with hot dilute
sulphuric acid; secondly, precipitating the iron by oxidizing
it in solution or by boiling the solution; thirdly, precipi-
tating the silver with chloride of sodium or by contact with
copper; fourthly, extracting the zinc by precipitation with
an alkaline carbonate or by crystallization of the sulphate,
followed by precipitation with an alkaline carbonate; fifthly,
smelting the ore residue of the leaching process to obtain
the lead, substantially as described. (3.) A process of treat-
ing chloridized complex ores containing antimony com-
prising the following steps, in combination, in the order
stated: Firstly, leaching the ore with agitation in water and
separating the antimony by gravitation therein from the
specifically heavier ore; secondly, precipitating the zinc (if
any) from the solution with an alkaline carbonate; thirdly,
washing, separating, and drying the strata of antimony lying
above the bed of specifically heavier residue of ore; fourthly,
leaching the ore residue with a hyposulphite solution; fifthly,
precipitating the lead (if any) by means of an alkaline
carbonate; and, sixthly, precipitating the silver (if any) by
means of a polysulphide, or alternatively smelting the ore
residue to obtain the lead (if any) and silver (if any) instead
of leaching and precipitating the same. (4.) A process of
treating chloridized complex ores containing gold and
copper, with or without iron, in addition to zinc, lead, silver,
or antimony, or other metals in negligible quantity, or any
two or more of these metals, comprising the following steps,
in combination, in the order stated: Firstly, leaching the
ore with agitation in water and separating the antimony by
gravitation from the specifically heavier ore residue, and
washing and drying and, if necessary, reducing the same;
secondly, separating the iron from the lixivium by oxidizing
it or boiling; thirdly, running the leaching solution through
charcoal or treating it with sulphate of iron to obtain the
gold; fourthly, running said liquor over iron scrap to throw
down the copper; fifthly, precipitating the zinc as oxy-
carbonate by means of an alkaline carbonate, or alternatively
precipitating the copper and zinc together with an alkaline
carbonate and separating the mixed precipitates by elutria-
tion; sixthly, leaching the ore residue with hyposulphite
solution to dissolve the silver and lead; seventhly, precipi-
tating the silver from the hyposulphite liquor by means of
a polysulphide, or alternatively smelting the ore residue to
obtain the lead and silver, instead of leaching and succes-
sively precipitating the same. (5.) A process of treating
chloridized antimonial ores which consists in agitating the
same in water and separating the antimony by gravitation
therein from the specifically heavier gangue, and, further,
when the ore contains gold and silver, treating the super-
natant liquor to obtain gold from the solution and smelting
the ore residue to obtain the silver, or leaching the same
with a hyposulphite solution and precipitating the silver by
means of a polysulphide, substantially as described.
(Specification, 6s. 9d.)

No. 14058.—26th September, 1901.—EMILY LANGER, of
Petersham, near Sydney, New South Wales. Improvements
in the drafting of patterns for garments, and in charts there-
for.

Extract from Specification.—My invention relates to that
class of charts for drafting patterns for garments which
consist of calico, linen, paper, metal, cardboard, or other
material marked with a system of lines, perforations, slots,
and measurements situated and proportioned with refer-
ence to actual measurements of the body. My charts
consist of a number of separate pieces relating respectively
to the several parts of various garments particularised. The
lines and marks thereon are produced by proportioning and
positioning from actual measurements. These actual mea-
surements relate respectively to the parts, the measure-
ments being stated as for a normal figure. The charts are
used by reproducing on the several pieces of the pattern the
proportionate measurements for each of these several body-
measures. The charts are equally useful where the figure is
not of a normal kind, as described in greater detail.
[NOTE.—The number and length of the claims in this case
preclude them from being printed, and the foregoing extract from
the descriptive part of the specification is inserted instead.]
(Specification, £1; drawings, 6s.)

No. 14059.—26th September, 1901.—FRANK GOLD, of 95,
Palmer Street, Richmond, Victoria, Nail-manufacturer.
An improved combination reinforced bearing-ring and an
enlarged integral mushroom head and integral elevated
striking-centre on a nail for securing corrugated iron.

Claim.—An improved combination reinforced bearing-
ring and an enlarged integral mushroom head and striking-
centre on a nail for securing corrugated iron, consisting of
one concavo-convex bearing-ring as E having a hole as F
therein, in combination with a shank as A having above it
an integral elevated striking-centre as D, and expanded
from said shank and below said striking-centre an integral
mushroom head having a convex outer surface as B and a
concave inner surface as C, all as and for the purposes
described, and as illustrated in the drawings.
(Specification, 3s. 9d.; drawings, 1s.)

No. 14060.—26th September, 1901.—CONSTANTINE ALEX-
ANDER HEGE, of Salem, North Carolina, United States of
America, Engineer. Machine for cutting railroad cross-ties.

Claims.—(1.) In a cross-tie-cutting machine, the combina-
tion, with a series of revolving cutters having their cutting-
edges a uniform radial distance from their axis, of a log-
carrier movable toward and from the cutters, means for
rotating the log carried thereby when in operative juxta-
position to the cutters whereby the cutters act uniformly