482
THE NEW ZEALAND GAZETTE.
[No. 10

movement of the water therein to operate the bell-ringing
mechanism, the various parts of the buoy being constructed
and arranged in detail as more particularly described.
[NOTE.—The above extract from the specification is inserted
in place of the claims.]
(Specification, 10s.; drawing, 2s.)

No. 20549.—10th January, 1906.—FRIEDRICH WILHELM
KLEVER, at Cologne on Rhine, 6, Brandenburgerstrasse,
Germany, Manufacturer. Improvements in and relating to
the manufacture of lubricating and anticorrosive oils.

Claims.—(1.) The described process for manufacturing
anticorrosive and lubricant oils especially adapted to dissolve
the residue in firearms resulting from the use of nitric
powders, which process consists in mixing hydrocarbons with
alcali oleates and alcohols. (2.) The described process for
manufacturing anticorrosive and lubricant oils especially
adapted to dissolve the residue in firearms resulting from the
use of nitric powders, which process consists in mixing hydro-
carbons with high-boiling alcohols and alcali oleates.
(3.) The described process for manufacturing anticorrosive
and lubricant oils especially adapted to dissolve the residue
resulting from the use of nitric powders in firearms, which
process consists in mixing hydrocarbons with alcohol and
alcali oleates under pressure.
(Specification, 3s. 6d.)

No. 20556.—10th January, 1906.—ARTHUR VICTOR LEGGO,
of Pendeen, Dawson Street, Ballarat, Victoria, Australia,
Metallurgist. An improved furnace for roasting, desul-
phurising, chloridizing, dehydrating, or drying ores and
other substances.

Extracts from Specification.—My furnace consists of a series
of horizontal or slightly inclined hearths one above and each
independent of the other, each hearth preferably having a
separate fire-box at its discharge end, and when cold ores—
that is, ores containing a low percentage of sulphur—are to
be roasted supplementary or auxiliary fire-boxes may be
built on one side or arranged alternately on either side at
any point or points along the length of said hearths. The
said hearths are provided with rabble arms, by means of
which the ore under treatment is conveyed simultaneously
along each hearth in the same direction and preferably at
the same rate of speed, so that the ore on each hearth at any
given point is at the same stage of desulphurisation or roast.
The ore to be treated is fed from a hopper on to the feed end
of each hearth and is passed along the said hearths by means
of the rabble arms which are fitted to vertical shafts which
pass through the centre of each hearth of the furnace.
When the ore has traversed the whole length of the hearth it
passes through an opening in the side thereof and enters a
shoot which conveys it either outside the furnace or to a
combined air-superheating and roasted-ore-cooling hearth
(hereinafter called a cooling-chamber) situated below the
level of the bottom hearth and preferably at one side thereof.
The cooling-chamber is so arranged and constructed as
that the air passed over the heated ore in the hottest part
thereof to cool it is on becoming hot passed either to the
combustion-chambers or roasting-chambers, where it assists
in the combustion of the fuel or oxidation of the ore in the
said roasting-chambers. . . . By my invention I pro-
vide means whereby any leakage from the said joint may
be caught in an annular recess surrounding said joint and
directed from the bottom thereof to a passage which leads to
a vertical channel cast integrally into the thickness of the
shaft, and the water may be withdrawn therefrom by means
of a tap placed at the bottom and side thereof. Each rabble
shaft is usually provided with only one rabble arm above
each hearth, which is quite sufficient in roasting many ores.
Some ores, however, on being heated assume a sticky con-
sistency, and in roasting such I provide each rabble shaft
with two rabble arms above each hearth, and so position the
teeth or tines on each arm that the ore left stagnant by
those on one will be stirred by those on the other, and the
teeth, being thus spaced further apart on the two arms than
they would be on only one, more effectively stir the ore.
[NOTE.—The above extracts from the specification are inserted in
place of the claims.]
(Specification, £2 2s. 6d.; drawings, 11s.)

An asterisk (*) denotes the complete specification of an
invention for which a provisional specification has been
already lodged.
NOTE.—The cost of copying the specification and drawing
has been inserted after the notice of each application. An
order for a copy or copies should be accompanied by a post-
office order or postal note for the cost of copying.
The date of acceptance of each application is given after
the number.
Extracts from the drawings accompanying the foregoing
complete specifications appear at the end of this Gazette.
F. WALDEGRAVE,
Registrar.

Provisional Specifications accepted.

Patent Office,
Wellington, 7th February, 1906.

APPLICATIONS for Letters Patent, with provisional
specifications, have been accepted as under:—
No. 20347.—J. and E. McGregor and C. G. Ross, sheep-
shears.
No. 20536.—A. J. Way, air-carburetter and gas-producer.
No. 20537.—A. J. Way, air-carburetter and gas-producer.
No. 20539.—H. Hadida, S. F. Cross, and P. W. Slingsby,
affixing stamps to envelopes, &c.
No. 20540.—J. D. Bywater, plough-disc mounting.
No. 20564.—S. Armstrong, leg-rope grip.
No. 20569.—J. P. Cowdery, oiling axles of railway-carriages,
&c.
No. 20570.—J. R. Park, air-carburetter and gas-producer.
(A. J. Way.)
No. 20571.—J. A. Easton and J. Greenfield, horse-feed box
and reservoir.
No. 20577.—A. Wood, acetylene generator.
No. 20578.—A. Whitney, target and shooting-range.
No. 20582.—C. H. Fabian, plant support and protection.
No. 20584.—E. J. Rigby, operating hammer rock-drills.
No. 20586.—E. Phillips, ore-treatment. (P. Gredt.)
No. 20588.—E. J. Hampton, window-fastener.
No. 20593.—A. McGregor, J. N. Parkes, J. K. Mehan, and
T. F. Macdonald, diving-dress.
No. 20596.—J. R. Little, steriliser for medical purposes.
No. 20597.—G. Pulman, curving-attachments to be used
with planing, &c., machines.
No. 20598.—E. J. Ritchie, egg-trap nest for poultry.
No. 20600.—G. Osborne, liquid-sprayer.
No. 20601.—J. W. Fowler.—Buffer-attachment to doors.
No. 20602.—A. S. Frost, cattle ringing instrument.
No. 20606.—E. R. Godward, gas-hanging for gas-regulator.
No. 20607.—E. R. Godward, deck chair.
No. 20608.—R. Dunne, brooch.
No. 20610.—T. Bassett, draft of binder, reaper, &c. (C. H.
McCormick.)

Letters Patent sealed.

LIST of Letters Patent sealed from the 25th January to
the 7th February, 1906, inclusive:—
No. 20140.—E. N. Waters, gate. (S. S. Hartley—J.
Mason.)

Letters Patent on which Fees have been paid.

[NOTE.—The dates are those of the payments.]

SECOND-TERM FEES.

NO. 14403.—H. C. W. Gibson, manufacture of steel tubes.
(B. F. McTear.) 24th January, 1906.
No. 14495.—J. Macalister, seed-sower. 26th January,
1906.
No. 14499.—W. Taylor, shunting-lever. 25th January,
1906.
No. 14507.—R. W. Pearse, bicycle. 29th January, 1906.
No. 14543.—J. Green, seed-sowing machine. 25th January,
1906.
No. 14549.—Lamson Store Service Company, Limited,
cash-carrier. (J. T. Cowley.) 24th January, 1906.
No. 14676.—G. J. Perotti, amalgamating-apparatus for
gold-saving. 18th January, 1906.
No. 14918.—O. Prollius, centrifugal machine. 31st
January, 1906.

THIRD-TERM FEES.

Nil.

Subsequent Proprietors of Letters Patent registered.

[NOTE.—The name of the patentee is given in brackets;
the date is that of registration.]

NOS. 10114 and 10115.—John Charles Smith, of Albert
Street, Auckland, in the Colony of New Zealand,
Bond-proprietor, and Alexander Hatrick, of Wanganui, in
the said colony, Merchant. Manufacture of pipes. [M.
Ferguson.] 31st January, 1906.
Nos. 10114 and 10115.—The Mephan-Ferguson Patent
Locking-bar Steel Pipe Company of New Zealand, Limited.
Manufacture of pipes. [M. Ferguson.] 31st January, 1906.
No. 18100.—United Shoe Machinery Company, of Pater-
son, in the State of New Jersey, United States of America,
a corporation duly organized under the laws of said State
of New Jersey, and having a place of business at 205,
Lincoln Street, in Boston, in the Commonwealth of Massa-
chusetts, in said United States of America. Top lift for boot
and shoe. [C. C. Small.] 2nd February, 1906.