2676
THE NEW ZEALAND GAZETTE.
[No. 88

dies which consists in dividing the outline of the pattern
into sections in such manner as to decrease the difficulties
of forming the curves and corners in the die, bending and
fitting strips of die-material, each of a length approximately
the same as that of one of said sections, to conform each
strip to its respective section of the outline of the pattern,
and butt-welding together the ends of said strips, in said butt-
welding operation maintaining in alignment the edges of the
strips which are to form the cutting-edge of the die.

[NOTE.—Here follows twenty other claims.]

(Specification, £1 4s.)

No. 26346.—4th August, 1909.—WILLIAM WHYTE CABENA,
of 405 Lonsdale Street, Melbourne, Victoria, Australia, Mer-
chant (assignee of William Stocks, of 30 Kerr Street, Fitzroy,
and Francis Kolbe, of 163 Curzon Street, North Melbourne,
Victoria, Australia, Rubber Experts). A process for ex-
tracting impure matters from old waste rubber.

Extract from Specification.—To remove the impure matter
in this crushed old waste rubber contained in the vat, any one
of the following acids is added thereto, viz. : sulphuric, muri-
atic, hydrochloric, or hydrofluoric. The proportion of any
one of the above acids is, say, from 10 lb. to 48 lb. by weight.
Heat is now applied to the vat by any desired means, either
directly or by means of steam-coils, and the mixture boiled
from five to forty-eight hours.

[NOTE.—The above extract from the specification is inserted in place
of the claims.]

(Specification, 3s. 6d.)

No. 26348.—4th August, 1909.—ERNEST TURPIN, of Allar-
dice Street, Dannevirke, New Zealand, Contractor. Improved
apparatus for sharpening the knives of chaff-cutters.*

Extract from Specification.—According hereto, a block of
emery-stone or similar material is adjustably secured to the
frame of the machine, where it bears lightly against the
blades as they revolve. A sharp edge is thus constantly
maintained upon the blades.

[NOTE.—The above extract from the specification is inserted in place
of the claims.]

(Specification, 3s. 9d.)

No. 26407.—12th August, 1909.—CHARLES AUGUSTUS LA
POINT and WESLEY FOWLER DAWSON, Gentlemen, both of
3008 Elizabeth Street, Denver, Colorado, United States of
America. Improvements in concentrating-apparatus.

Extract from Specification.—My invention relates to im-
provements in concentrating-apparatus. The body part of
the construction is in the form of a sluice, and preferably is
composed of a number of distinct separable sections, whereby
the construction may be taken apart and reduced to small
compass for convenience of transportation. At the head of
the apparatus I provide a sort of feed-trough, having a
perforated plate upon which the material to be treated is
discharged, the orifices of the plate being constructed to
reject the coarse worthless material, which is discharged
from the trough by virtue of the inclination of the apparatus.
Below this trough is located one of the sluice sections, in
which is placed a tray having riffles shaped to give the material
a forward direction. These riffles terminate a short distance
above the concentrating surface of the sluice, which is prefer-
ably composed of carpeting, matting, or other similar woven
material adapted to receive and retain the fine mineral
particles. The sluice sections are inclined downwardly from
the head of the table, and the riffles of the tray are constructed
to discharge the material upwardly and forwardly as it strikes
the concentrating surface, as just explained. This tray is
vertically adjustable in the sluice section, whereby the distance
between the lower extremities of the riffles and the con-
centrating surface may be regulated as desired. Below the
first sluice section is an unriffled section preferably provided
with carpeting or matting constituting the concentrating
surface; while the third sluice section is provided with
riffles placed transversely of the sluice and resting on the
concentrating surface, preferably composed of the same
material as the concentrating surfaces of the other sections.

[NOTE.—The above extract from the specification is inserted in place
of the claims.]

(Specification, 10s. 6d.)

No. 26408.—12th August, 1909.—JOSE BAXERES DE
ALZUGARAY, of 10 Old Slip, Manhattan, New York, United
States of America, Chemist. Improvements in the art of
extracting metals from ores.

Extract from Specification.—According to one form of my
invention the ore is not previously roasted, and the metals
are extracted from their ore by means of acidulated solutions
of chlorides containing free chlorine obtained by the partial
decomposition of the hydrogen-chloride in solution through
the action of suitable oxidizing agents.

[NOTE.—The above extract from the specification is inserted in place
of the claims.]

(Specification, 7s.)

No. 26410.—12th August, 1909.—WILLIAM JOSEPH BUTLER,
of Wellesley Street, Auckland, New Zealand, Engineer. Im-
provements in sewing-machines.

Claims.—(1.) The described improvement in sewing-ma-
chines, comprising a rotating carrier having upper and lower
hooks and a catch projecting from its circumference, a sta-
tionary spool-receiver within the carrier provided with a
supporting flange fitting a groove formed in the carrier, and
means for rotating the carrier, substantially as set forth.
(2.) The described improvement in sewing-machines, com-
prising a pivoted link, a lever fulcrumed upon the link, a
shaft provided with a crank, a pin pivoting the lever to the
crank, a thread-hook secured to the end of the lever, and
means for rotating the shaft, substantially as set forth. (3.) In
apparatus as claimed in claim 2, the employment of a hori-
zontal bracket to which the link is pivoted and having a
horizontal slot, a bracket having a vertical slot, and a screw
passing through both slots and clamping the horizontal
bracket to the vertical bracket, substantially as set forth.
(4.) The described improvement in sewing-machines, com-
prising the combination with thread-guides on a sewing-
machine head, of levers adapted to reciprocate in one and
the same vertical plane, arms integral with the levers, studs
projecting from the arms and engaging horizontal slots in
the needle-bar, substantially as set forth. (5.) The com-
bination and arrangement of parts comprising the improve-
ments in sewing - machines, substantially as and for the
purposes described, and illustrated in the drawings.

(Specification, 6s. 6d.)

No. 26419.—13th August, 1909.—ALEXANDER WALKER
REID, of Miranda Street, Stratford, New Zealand, Engineer.
Improvements in apparatus for creating a vacuum.

Claims.—(1.) In apparatus for the purpose described, a
valve adapted to close upon a seat formed upon the top of
the cylinder, a bridge-piece secured to the top of the cylinder,
a stem upon the valve guided vertically by bars of the bridge-
piece, and a spiral spring located upon the stem and in com-
pression between the lower bar of the bridge-piece and a nut
screwed upon the stem, substantially as set forth. (2.) The
combination and arrangement of parts comprising the im-
provements in apparatus for creating a vacuum, substantially
as and for the purposes set forth and illustrated in the drawing.

(Specification, 3s.)

No. 26465.—24th August, 1909.—WILLIAM CHRISTIAN, of
Walters Road, Hyde Park, Rookwood, near Sydney, State
of New South Wales, Australia, Paint-manufacturer. An
anti-corrosive anti-fouling compound.

Claims.—(1.) The primary non-corrosive anti-fouling com-
position A, comprising liquefied silicate of soda, ammoniated
alum solution (both solidified by admixture), arsenical mix-
ture, pipeclay paste, and resin tallow varnish, substantially
in the approximate proportions specified.

[NOTE.—Here follow five other claims.]

(Specification, 5s. 6d.)

No. 26468.—24th August, 1909.—CHARLES ABRAM GEE, of
9 Broad Lane, South Tottenham, London N., England,
Manufacturer. Improvements relating to exhibiting and
advertising apparatus.

Extract from Specification.—According to the invention, I
provide a number of sets of plates or pictures, of a number
in each set corresponding to the number of representations