70 THE NEW ZEALAND GAZETTE. [No. 2

densing-worm with lower tank, mechanism for raising and
lowering cylinder, inlet and outlet pipes and taps and cocks,
all for the purpose set forth, substantially as described.
(3.) In the treatment of soil, clay, earth, and vegetable and
other matter, called gum-dirt, containing kauri-gum in any
form, and these bodies derived from kauri-gum by chemical
change in the course of nature, the use of acetone in the
manner specified in the cylinder-pipes, condensation-worms,
retort or still, and the tanks or reservoirs, for the purpose set
forth, substantially as described. (4.) In the treatment of
soil, clay, earth, and vegetable and other matter, called gum-
dirt, containing kauri-gum in any form, and these bodies de-
rived from kauri-gum by chemical change in the course of
nature, the arrangement, combination, and application of
the various parts specified, together with the use of acetone
therewith, for the purpose set forth, substantially as de-
scribed.
(Specification, 11s.; drawings, 1s.)

No. 14605.—8th March, 1902.—FRANK OAKDEN, of
Dunedin, New Zealand, General Manager of the Milburn
Lime and Cement Company, Limited. Improvements in
the process of manufacturing Portland cement.*

Claims.—(1.) In the improved process described for manu-
facturing Portland cement, the use of quicklime and clay in
alternate layers, substantially as and for the purposes set
forth. (2.) In the improved process described of manufac-
turing Portland cement, the step which consists of first
expelling the CO₂ from natural limestone, forming heaps of
the resulting quicklime with clay in suitable proportions in
alternate layers, and allowing said heaps to remain until the
clay is dried and the quicklime is reduced to an impalpable
powder, substantially as described. (3.) The process of
manufacturing Portland cement which consists of expelling
the CO₂ from the natural limestone, forming heaps of the
resulting quicklime with clay in suitable proportions in
alternate layers, allowing said heaps to remain until the clay
is dried and the quicklime is reduced to an impalpable
powder, grinding and intimately mixing the resulting mix-
ture in a suitable mill, burning the ground and intimately
mixed compound with coal-dust in a suitable kiln, and
grinding the resulting clinker to powder by suitable ma-
chinery, substantially as described.
(Specification, 3s. 3d.)

No. 14609.—12th March, 1902.—THOMAS STANLEY PHIL-
POTT, of Mein Street, Newtown, Wellington, New Zealand,
Saddler. An improved device for oiling axles of vehicles.*

Claims.—(1.) In combination with an axle-cap, a hollow
plug screwed into the cap, a milled head upon the plug, a
hole behind the head communicating with the interior of
the plug, and a notch on the head of the plug to indicate the
position of the said hole, substantially as set forth. (2.) In
combination with an axle-cap, a hollow plug screwed into
the cap, a milled head upon the plug, a hole behind the
head communicating with the interior of the plug, a spiral
spring in compression upon the plug, means for keeping the
spring upon the plug, and a notch on the head of the plug to
indicate the position of the said hole, substantially as set
forth. (3.) The combination and arrangement of parts
comprising my improved device for oiling axles of vehicles,
substantially as and for the purposes set forth, and illus-
trated on the drawing.
(Specification, 3s.; drawings, 1s.)

No. 14625.—14th March, 1902.—WILLIAM MORLEY
BARTLE, of Napier, New Zealand, Painter. An improved
apparatus for flushing water-closets.*

Claims.—(1.) In apparatus for the purpose described, a
valve controlled in its descent by a bucket within an air-
pump, substantially as and for the purposes set forth.
(2.) In apparatus for the purpose described, a tapered down-
pipe, and a bell-mouth cistern to the said downpipe whereby
a rapid and free flow of water is obtained, substantially as
and for the purposes set forth. (3.) In apparatus for the
purpose described, in combination, a valve controlled in its
descent by a bucket within an air-pump, the said bucket
having a hollow piston-rod provided with a vent-hole and a
tapered downpipe, and a bell-mouth cistern to the said down-
pipe whereby a rapid and free flow of water is obtained,
substantially as and for the purposes set forth. (4.) In
apparatus for the purpose described, in combination, a
tapered downpipe, and a valve at the foot of the said down-
pipe, a rod to operate the said valve and having its lower
extremity passing through a bridge whereby the valve is
guided to its seat, substantially as and for the purposes set
forth. (5.) An apparatus for the purpose described, com-
prising, in combination, a tapered downpipe having a valve
at its foot, a rod to operate the said valve and having its
lower extremity passing through a bridge whereby the valve
is guided to its seat, a crosshead connecting the valve-rod to
the piston-rod of an air-pump, a lever and chain for operating
the valve-rod, a water-cock operated by a float-ball, and a
pipe conducting water from the water-cock to the foot of the
downpipe, substantially as and for the purposes set forth.
(6.) The combination and arrangement of parts comprising
the improved apparatus for flushing water-closets, sub-
stantially as and for the purposes set forth, and illustrated
on the drawing.
(Specification, 3s. 6d.; drawings, 1s.)

No. 14645.—20th March, 1902.—JAMES ROBERTS JEWELL,
of 119, Lygon Street, East Brunswick, near Melbourne,
Victoria, Butcher, and WILLIAM HENRY JEWELL, of 3, Bent
Street, Northcote, near Melbourne aforesaid, Paper-bag
Manufacturer. Improved means for locking the wheels of
carts and other road-vehicles.*

Claims.—The described means for locking the wheels of
carts and other road-vehicles, consisting essentially of spring
bolts or catches mounted upon, against, or under the axle of
the vehicle, and normally adapted to spring into engagement
with one or other of a series of holes or recesses in discs or
plates attached to the inner ends of the hubs of the wheels,
said spring bolts or catches being connected with a lever or
the like in the body of the vehicle, substantially as and for
the purposes specified, and as illustrated in the drawings.
(Specification, 2s.; drawings, 1s.)

No. 14669.—22nd March, 1902.—RICHARD ARTHUR, of
Wynyard Road, Mount Eden, Auckland, New Zealand,
Engineer. A means for discharging the waste products of
combustion of a marine oil-engine without noise or smell.*

Claims.—(1.) A metal bottle-shaped ejector with a fold-
ing valve to close its open and smaller end, and a funnel-
shaped metal casting inserted into the ejector, as illustrated
and substantially described. (2.) The combination of oil-
engine, condenser, and ejector as substantially described.
(Specification, 1s. 3d.; drawings, 1s.)

No. 14677.—22nd March, 1902.—FRANK COOPER, of Inver-
cargill, New Zealand, Agricultural-implement Maker. An
improved spring-tine cultivator.*

Claims.—(1.) In a spring-tine cultivator, a worm-wheel
attached to an axle geared to a worm operated by a hand-
wheel, said worm connected to a lever by means of a bracket
for the purpose of revolving an axle to which travelling
wheels are cranked for the purpose of regulating depth of
work of tines, substantially as shown in drawings and de-
scribed. (2.) A hand-lever on a cultivator to work in con-
junction with a worm-wheel and worm for operating tines,
substantially as shown on drawings and described. (3.) A
tine-bar and clips loosely connecting two tine-levers, sub-
stantially as shown in drawings and described. (4.) A spring-
tine cultivator with arrangement of frame, wheels, lever,
and spring tines substantially as shown in drawings and
described.
(Specification, 3s.; drawings, 1s.)

No. 14691.—1st April, 1902.—DAVID EBENEZER AMESBURY,
of Denbigh Street, Feilding, New Zealand, Taxidermist.
Improvements in castors.*

Claims.—(1.) The improvements in castors described and
illustrated. (2.) In a castor, a crutch projecting vertically
from the head, a cap adapted to receive the crutch and
having its inner upper end shaped to approximately coincide
with the upper end of the crutch, substantially as specified.
(3.) In a castor, a crutch projecting vertically from the head,
a portion of the crutch being recessed, a cap adapted to re-
ceive the crutch, and a screw passing through the cap and
taking into said recess, substantially as specified. (4.) In a
castor, a crutch projecting vertically from the head, a cap
adapted to receive the crutch, a cup at the top of the crutch,
a ball within the cup, the upper end of the cup being shaped
to receive said ball, substantially as specified. (5.) In a
castor, a crutch projecting vertically from the head, a cap
adapted to receive the crutch, and a cup or socket integral