Aug. 8.] THE NEW ZEALAND GAZETTE. 1631

cylinder, whereby a uniform temperature is maintained
between the two cylinders, substantially as set forth. (3.) In
an apparatus of the character described, the combination
with a steriliser comprising a tub and two cylinders placed
within the tub one within the other, one of said cylinders
being provided with a feed-screw which works against the
other cylinder, of a steam or hot-water pipe located within
the tub exterior to the cylinders, and an ejector located in
the tub to eject the water therefrom and inject it into the
innermost cylinder, whereby a uniform temperature is main-
tained between the two cylinders, substantially as set forth.
(4.) In an apparatus of the character described, the combina-
tion with a steriliser comprising a tub and two cylinders
placed within the tub one within the other, of a steam or
hot-water discharge-pipe located in the bottom of the tub
exterior to the cylinders, and an injector leading from the
tub to the innermost cylinder, substantially as set forth.
(5.) In an apparatus of the character described, the combi-
nation with a steriliser comprising a tub and two cylinders
placed within the tub one within the other, of a steam or
hot-water coil located in the bottom of the tub exterior to the
cylinders, a vertical pipe extending downwardly and in close
proximity to the bottom of the innermost cylinder, and an
injector leading from the tub and adapted to discharge into
the vertically disposed pipe within the cylinder, substantially
as set forth. (6.) In an apparatus of the character described,
the combination with a steriliser comprising a tub and two
cylinders placed within the tub one within the other, of an
inlet-pipe located in the bottom of the tub, and means
for maintaining a continuous circulation of water between
the tub and innermost cylinder, substantially as set forth.
(7.) The combination of a cooler comprising an inner and
outer cylinder, the inner cylinder being provided with a feed-
screw to engage the inner wall of the outer cylinder, the
outer cylinder being provided with an external tortuous water-
passage, and with an upper trough which communicates
with the space formed between the two cylinders, and the
inner cylinder being provided with a lateral flange or guard
extending over said trough, a second trough arranged around
the outer cylinder and extending laterally beyond the first-
named trough and adapted to receive the overflow from the
inner cylinder, a water-pipe communicating with the inner
cylinder and the tortuous passage of the outer cylinder, a
pipe communicating with the lower end of the tortuous pas-
sage and the last-named trough, substantially as set forth.
(Specification, 8s. 9d.; drawings, 2s.)

No. 13850.—25th July, 1901.—JOSEF FÜHRER, of 5, Marok-
kaner Strasse, Vienna, Austria, Clerk. Improvements in
explosives.

Claim.—The increase of the effective force of explosives
by the utilisation of the caloric effect which is produced at
the moment of firing by the transformation of a light metal,
such as aluminium, into its oxide, substantially as de-
scribed.
(Specification, 2s. 9d.)

No. 13860.—29th July, 1901.—GEORGE EDWARD HUM-
PHRIES, of 62, Tory Street, Wellington, New Zealand,
Builder. Improved means for removing window-sashes
from their frames.

Claims.—(1.) The improved means for removing window-
sashes from their frames consisting in providing an open-
ing in the pulley-style large enough to admit the sash
when pushed laterally into it, said opening being closed by
a pocket-piece, to which is secured a portion of the parting-
bead, and a lock or bolt being provided for securing the
upper end of the pocket-piece in position, substantially as
specified and illustrated. (2.) In means for the purpose in-
dicated, a pocket-piece forming a cover for a pocket in the
window-frame adapted to receive the window-sash, a por-
tion of the parting-bead integral with or secured to said
pocket-piece in position, substantially as specified. (3.) The
means by which window-sashes may be removed from their
frames, consisting of the parts constructed, combined, ar-
ranged, and operating substantially as specified, and illus-
trated in the drawings.
(Specification, 2s. 6d.; drawings, 1s.)

No. 13862.—26th July, 1901.—HERBERT OBERLIN BROWN,
of Mount Eden, near Auckland, New Zealand, Pianoforte-
tuner. An improved method of securing pins to scarves,
clothing, bags, and other articles.

Claims.—(1.) The connection to a pin of a chain, cord, or
suchlike, having a catch attached to free end of chain, said
chain and catch being together shorter than the length of the
pin, for the purpose set forth, substantially as described and
illustrated. (2.) In combination, a pin, a chain, cord, or
suchlike connected to said pin, a catch attached to free end
of said chain, and said chain and catch together shorter than
the length of the pin, for the purpose set forth, substantially
as described and illustrated.
(Specification, 2s. 3d.; drawings, 1s.)

No. 13863.—30th July, 1901.—ALFRED ERNEST WELLS, of
the Imperial Steelworks, Sheffield, York, England, Steel-
manufacturer. Improvements in shoes and dies for stamps
for crushing quartz, metalliferous ores, and the like.

Claims.—(1.) In stamps for crushing quartz, metalliferous
ores, and the like, the application of shoes and dies formed
with soft centres or cores, the material surrounding the said
centres or cores being constructed of a quality of the usual
hardness as when the shoes and dies are made solid, in
the manner and for the purposes substantially as de-
scribed, and illustrated in the sheet of drawings. (2.) The
application to stamps for crushing quartz, metalliferous
ores, and the like, of shoes and dies formed and constructed
with a combination of soft and hard material, in the
manner and for the purposes substantially as described, and
illustrated in the sheet of drawings.
(Specification, 1s. 6d.; drawings, 1s.)

No. 13865.—30th July, 1901.—ANDREW JOHN FREDRIK-
SON, of Smalands, Taberg, Sweden, Engineer. Improve-
ments in or connected with wax matches.

Claims.—(1.) A taper or the like for combustible pur-
poses consisting of thin veneers of wood or the like and a
wax coating. (2.) A taper or the like for combustible pur-
poses consisting of thin veneers of compressed wood or the
like and a wax coating. (3.) A taper or the like for com-
bustible purposes consisting of thin veneers of wood or the
like, a spiral binding and a wax coating. (4.) A taper or
the like for combustible purposes consisting of thin veneers
of compressed wood or the like, a spiral binding, and a wax
coating. (5.) A taper or the like for combustible purposes
consisting of thin veneers of wood or the like, longitudinal
fibres, a spiral binding, and a wax coating. (6.) A taper or
the like for combustible purposes consisting of thin veneers
of compressed wood or the like, longitudinal cotton or the
like fibres, a spiral binding, and a wax coating. (7.) The
process for making tapers or the like consisting in guiding
thin veneers of wood or the like through a common guide,
binding the veneers together by a spiral winding, waxing the
bound veneers, and cutting the wax bundle into the desired
lengths.
(Specification, 2s.)

No. 13872.—31st July, 1901.—WILLIAM ERNEST HUGHES,
of Queen’s Chambers, Wellington, New Zealand, Patent
Agent (nominee of William Deering, of Evanston, Cook
County, Illinois, United States of America, the assignee of
George Henry Ellis, of Chicago, Cook County aforesaid),
Manufacture of twine from unretted flax-straws, and slivers
for making same.

Claims.—(1.) A sliver from which twine may be spun, con-
sisting of a multiplicity of lapped ribbons of the cortices of
flax-straw, substantially as described. (2.) A twine of flax-
straw, composed of wisps of interlapped unhackled cortices
of substantially the full length of the straw twisted together.
(Specification, 3s. 6d.; drawings, 2s.)

No. 13875.—1st August, 1901.—THOMAS RAWLINSON, of
Inglewood, New Zealand, Engineer. Improvements in
spark-arresters.

Claims.—(1.) The improvements in spark-arresters con-
sisting of the parts combined, arranged, and operating
substantially as and for the purposes described, and as
illustrated in the drawing. (2.) In a spark-arrester, the
combination of a casing having an inner tube designed to fit
upon a chimney, a hood fitted upon the top of said chimney
having an opening, a cover for closing said opening, and
means for operating same, substantially as and for the
purposes specified and illustrated. (3.) The combination in
a spark-arrester in which sparks are deflected into a vessel
containing water, a perforated pipe within said vessel by
which water may be admitted, and a blow-through valve
through which ashes may be discharged, substantially as
and for the purposes specified, and illustrated in the drawing.
(4.) In a spark-arrester, a vessel containing water into which
sparks are deflected and quenched, comprising an outer
casing fixed upon an inner tube designed to fit over the
chimney upon which the apparatus is employed, substanti-
ally as specified and illustrated. (5.) In a spark-arrester in
which sparks are deflected into water by a hood fixed upon
the chimney, a hood having an opening provided with an
operatable cover, substantially as and for the purposes
specified and illustrated. (6.) In a spark-arrester, the com-