Feb. 21.] THE NEW ZEALAND GAZETTE. 729

bracket upon the front of the hopper, an arm secured to the
stud below the bracket, pins secured to a bar and engaging
the said arms, a slotted bracket secured to the bar, a disc
secured to a shaft and having a pin engaging the slotted
bracket, and means for rotating the shaft, substantially as
set forth. (4.) In apparatus for sowing seeds, the employ-
ment of plates reciprocated through the front of a hopper,
heads upon the plates adapted to force seeds through holes
provided in the front of the hopper, substantially as set forth.
(5.) In apparatus for sowing seeds, the employment of plates
reciprocated through the front of a hopper, holes in the plates,
and heads thereon adapted to convey seeds from the interior
to the exterior of the hopper, and an adjustable shutter for
preventing, when desired, delivery by the said heads, sub-
stantially as set forth. (6.) In apparatus for sowing seeds,
the employment with reciprocating plates constructed as
described in claim 1 of sill plates upon which the said
plates slide, and guards for retaining the reciprocating plates
upon the sill plates, substantially as set forth.

(Specification, 5s. 6d. ; drawing, 1s.)

No. 21678.—22nd August, 1906.—WALTER THOMAS WING-
FIELD, of 20 Blackwood Street, North Melbourne, Victoria,
Australia, Die-sinker, and CHRISTOPHER WEBER HERMANN,
of 6 Stewart Street, Windsor, Victoria aforesaid, General
Engraver. A multi-colour self-inking stamp-pad.

Claims.—(1.) A stamp inking-pad frame constructed with
vertical partitions integral therewith containing independent
pads adapted to be soaked with inks of various colours, and
an adjustable guide fitting around said frame, substantially
as described and illustrated, and for the purposes set forth.
(2.) In combination with a stamp-pad frame 1, 1a, having
vertical partitions 4 and 5 containing independent pads, a
guide 12 fitting on flanges 2 around said frame, and means
as 13 for the removal thereof, substantially as and for the
purposes set forth. (3.) A stamp-pad-inking frame con-
structed with a vertical border partition and a plurality of
partitions each containing an independent pad of absorbent
material whereby the border of a stamp and the figuring
may be differently coloured, and an adjustable guide fitting
around said frame, substantially as and for the purposes
set forth. (4.) A stamp-inking-pad frame constructed with
a plurality of circular or oval divisions or compartments
each containing an independently inked pad, whereby a multi-
colour stamp-impression may be obtained, substantially as
described. (5.) A stamp inking-pad constructed substantially
as described with reference to Fig. 3 of the drawings, and for
the purposes set forth.

(Specification, 4s. ; drawing, 1s.)

No. 21808.—18th September, 1906.—EUSTACE WILLIAM
ACKLAND, of Dunedin, New Zealand, Electrical Engineer.
Improvements in and relating to conduits for electrical cables
and wires.*

Claims.—(1.) A circular pipe having a longitudinal slot
cut therefrom to receive electrical cables and wires, and a
filling of bitumen or the like for the purpose of forming an
electrical conduit, substantially as described. (2.) Making a
conduit for electrical cables and wires on the solid system by
first making circular pipes of cement or the like, cutting
from the walls thereof when green or not set longitudinal
strips, allowing the pipes to set or be made hard, digging a
narrow shallow trench substantially in the direction it is
desired to lead the conduit, placing the pipes in said trench,
and then in the usual manner laying cables or wires therein
and filling up the pipe with bitumen or the like, substantially
as described.

(Specification, 4s. ; drawing, 1s.)

No. 22157.—20th February, 1906.—ALEXANDRE TROPENAS,
of 10 Grande Rue, Montelimar, Drome, France, Engineer.
Improvements in the manufacture of steel by the pneumatic
process.

[NOTE.—This is an application under section 106 of the Act, the date
given being the official date of the application in France.]

Claim.—In the manufacture of steel by the pneumatic
process in small charges in a converter, the addition of ferro-
silicon or high siliceous iron in small quantity (varying
according to the analysis of the iron treated) immediately
after or very little time after the appearance of the carbon
flame, thus not changing in any way the evolution or pro-

gression of the carbon flame, and permitting the characteristic
signs of this flame to be used for the stopping of the operation
at the precise moment when the fining is finished ; or, in other
words, permitting a given quality or grade of steel with the
percentage of carbon required to be obtained without excess
of silicon or excess of oxide of iron, and allowing this quality
to be repeated indefinitely in different charges practically
without variation, in the manner and for the purposes sub-
stantially as described, and illustrated on the sheet of drawings.

(Specification, 8s. 6d. ; drawing, 1s.)

No. 22248.—27th December, 1906.—JOHN DARNELL, of 6
Darragh’s Buildings, Queen Street, Brisbane, Queensland,
Australia, Boot and Shoe Agent. Pneumatic rubber attach-
ment to heels of boots and shoes.

Claims.—(1.) The means for preventing vibration in boots
and shoes by inserting a pneumatic rubber cushion between the
leather or other wearing top-piece and the remainder of the
heel proper, substantially as described. (2.) The method of
fastening the top-piece to the pneumatic cushion and remainder
of boot-heel by a screw, as illustrated and described. (3.) The
method of fastening the top-piece to cushion-piece and
remainder of boot-heel by one or more screws, as illustrated
and described.

(Specification, 2s. 6d. ; drawing, 1s.)

No. 22307.—14th January, 1907.—PERCY LLOYD SMITH,
of “Latona,” Shaftesbury Parade, Northcote, Victoria,
Australia, Inventor. An improved connection for pneumatic
pumps.

Claims.—(1.) An improved connection for pneumatic
pumps : In combination, a bent metal tube having a screw
thread at one end, the other end being provided with a flange,
a cylindrical piece consisting of an outer casing and an inser-
tion-piece forming a swivel joint with the metal tube, an
internal screw thread cut in the insertion-piece, a collar
surrounding the tube, and washers to keep the connection
airtight, substantially as and for the purposes set forth.
(2.) An improved connection for pneumatic pumps : In com-
bination, means for allowing a swivelling movement of the
connection, consisting of a tube having a flange which fits
into a recess formed in a cylindrical piece as G, substantially
as and for the purposes set forth. (3.) The combination and
arrangement of the several parts forming a complete connec-
tion for pneumatic pumps, substantially as described and as
illustrated in the drawings.

(Specification, 2s. 9d. ; drawing, 1s.)

No. 22312.—15th January, 1907.—GEORGE MACKANESS,
of St. George’s Crescent, Drummoyne, Sydney, New South
Wales, Australia, Machinist, and JOHN BARNES, of Raglan
Street, Mosman, Sydney aforesaid, Commercial Traveller.
Improvements in and relating to screw propellers.

Claims.—(1.) A screw propeller having manifold blades of
varying diameters arranged in clusters aslant of the axis of
the hub or boss, such blades being similarly proportioned up
to the limit of their respective diameters based upon the
predetermined areas of the maximum and minimum diameters
of the largest and smallest blades, substantially as set forth.
(2.) In a screw propeller having manifold blades arranged
aslant of the axis of the hub or boss, a standard blade of
predetermined maximum diameter proportioned as may be
desired, and a series of diminished blades similarly propor-
tioned to the standard blade, and adapted to be arranged
in sets or clusters either upon a boss or in association with a
number of bosses, substantially as and for the purposes set
forth. (3.) In a screw propeller with manifold blades ar-
ranged in clusters upon a single boss or a number of bosses,
the combination with a cluster of standard blades of a series
of clusters of diminished blades disposed in correlative posi-
tions to the standard blades, producing an overlapping of the
blades in the convoluted line of sight when viewed either
from the front or rear, substantially as set forth. (4.) In a
screw propeller having manifold blades, the grouping or
clustering of the diminished blades in correlative positions
in the convoluted line of sight, but oppositely disposed to the
natural or ordinary pitch of the screw, substantially as and
for the purposes set forth. (5.) In a screw propeller having
convoluted lines of overlapping blades, the combination of a
standard blade, or series of such, and a number of diminished
blades arranged in the same convoluted line of sight, with