2268
THE NEW ZEALAND GAZETTE.
[No. 74

been sufficiently boiled, which is indicated by its sinking
beneath the surface of the water in the vat, it is removed
and passed between three or more sets of squeezing rollers.
While passing between the first set the material is sprayed
with water to which has been added some of the same emulsion
of linseed-oil as used in the boiling operation. The material
then passes between each of the further sets of rollers, and in
its passage therethrough it is sprayed with water alone, with
the result that when it leaves the last set of rollers any gummy
matter left in the material after the boiling operation, to-
gether with any fleshy matter, has been removed, and the ma-
terial then passes on to and along the drying-table. When
it reaches the end of the drying-table it is in a fit condition
to be subjected to the ordinary breaking and scutching
apparatus.

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

(Specification, 10s. ; drawings, 2s.)

No. 21405.—5th July, 1906.—Aktiebolaget Separator,
a corporation existing under the laws of Sweden, and having
their place of business at 8 Fleminggatan, Stockholm, Sweden,
Manufacturers (assignees of Birger Ljungstrom and Fredrik
Ljungstrom, both of Fleminggatan 8, Stockholm, Sweden,
Engineers). Improvements in mechanism for operating milk-
ing-machines.

Claims.—(1.) Operating mechanism for milking-machines
driven by reciprocating motion, wherein one or more wires,
rods, or the like, to which a reciprocating motion is imparted,
are arranged along or across the racks in the cow-house? or
in the open field, said wires or the like being connected with
the driving member of the milking machine or machines.
(2.) In mechanism as described in claim 1, the arrangement
with several racks wherein the wires or the like, running along
or across said racks, are connected together by means of bell-
crank levers or the like, in order that they all may be actu-
ated from a single point. (3.) In mechanism as described in
claims 1 or 2, the arrangement wherein further wires are
arranged parallel to the operated wires or the like, said
further wires being fixed or movable in a direction opposite
to said operated wires. (4.) In mechanism as described in
claims 1, 2, or 3, with the milking members actuated by means
of a pump, the construction wherein said pump or its piston is
secured to the movable wire, whilst the piston or pump is
secured to the wire or like, moving in opposite direction re-
spectively.

(Specification, 4s. 6d. ; drawing, 1s.)

No. 21406.—5th July, 1906.—Kristian Birkeland, Pro-
fessor at the University of Christiania, and Samuel Eyde,
Civil Engineer, both of Raadhusgaden 20, Christiania, Nor-
way. Process and apparatus for treating materials at high
temperatures.

Claims.—(1.) The process which consists in establishing an
electric arc, creating a magnetic field adapted to disperse or
spread said arc to form a disc-shaped flame and passing a cur-
rent of gas or gases past and in contact with the flame.
(2.) The process of producing nitrogen oxides from atmospheric
air, which consists in subjecting said air to the simultaneous
action of an electric arc and a magnetic field in the presence
of suitable contact materials and then removing the nitrogen
oxides from the remaining products. (3.) The process of
producing chemical reaction in a compound or mixture of
gases, which consists in subjecting such compound or mixture
to the action of an electric arc in a magnetic field and in
simultaneously introducing a contact material into the zone
in which the reaction takes place. (4.) An apparatus for
causing chemical reactions in gases comprising a furnace
chamber, means of creating a powerful magnetic field in the
chamber, electrodes entering the chamber within the mag-
netic field, a source of electricity to feed the electrodes with
direct or alternating current, and means to pass a current of
gas through the furnace. (5.) In an apparatus for causing
chemical reactions in gases, a furnace having a reaction
chamber and a lateral chamber separated from the reaction
chamber by a perforated wall of fireproof material, a gas
inlet to the lateral chamber and an outlet from the reaction
chamber. (6.) In an apparatus for causing chemical re-
actions in gases, a furnace having a reaction chamber,
electrodes entering said chamber, an unsymmetrical magnetic
field for the spreading or dispersing of the electric arc between
the electrodes and for deflecting the arc disc to the one side,
the arc disc thus assuming a spherical form against the con-
cave side of which the gases to be treated may be blown or
pressed. (7.) In an apparatus of the kind described, the use
of electrodes formed of tubes of copper or other suitable mate-
rial, said tubes being bent to a U-shaped form and being cooled
by a water current. (8.) An electrode for the use in the caus-
ing of chemical reactions in gases and the like by means of
electric arcs, provided with contact material on the sides
where the foot points of the arcs are moving. (9.) In an
apparatus of the kind described for causing chemical reac-
tions in gases, the combination with a furnace of a self induc-
tion and a condenser battery or a synchrone motor shunted to
each other in front of the furnace and in series with the same.
(10.) In an apparatus of the kind described for causing
chemical reactions in gases, the combination with a furnace
and a self induction and a condenser battery or a synchrone
motor shunted to each other in front of the furnace and in
series with the same, of induction coils in the conductors on
each side of the furnace. (11.) In an apparatus of the kind
described for causing chemical reactions in gases, the com-
bination with a plurality of furnaces connected in shunt to
each other in the circuit, of a self induction and a condenser
battery or synchrone motor shunted to each other in front of
the furnaces and in series with the same. (12.) In an appa-
ratus of the kind described for causing chemical reactions in
gases, the combination with a plurality of furnaces connected
in shunt to each other in the circuit, and a self induction and
a condenser battery or synchrone motor shunted to each other
in front of and in series with the furnaces, of induction coils
in the conductors on each side of the furnaces. (13.) An
electric furnace for smelting and similar purposes having an
annular hearth, electrodes placed diametrically above the
hearth, an electromagnetic system to create a powerful mag-
netic field causing the arc between the electrodes to spread to
a disc-shaped flame covering the annular hearth. (14.) An
electric furnace constructed as described with reference to
Figs. 6 and 7. (15.) An electric furnace constructed as
described with reference to Fig. 8. (16.) An electric furnace
constructed as described with reference to Fig. 9. (17.) An
electric furnace constructed as described with reference to
Fig. 10. (18.) An electric furnace constructed as described
with reference to Figs. 11 and 12.

(Specification, 11s. ; drawings, 6s.)

No. 21408.—6th July, 1906.—Charles Tandy, of 42
Taranaki Street, Wellington, New Zealand, Blacksmith.
Improvements in or relating to shearing-machines.

Claim.—My improvement in shearing-machines consisting
of the attachment of teeth, rollers, or other gripping means
to the working-face for the purpose of retaining the metal
in position.

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

No. 21424.—7th July, 1906.—William Leivesley, of
Eclipse Street, Springsure, Leichardt, Queensland, Australia,
Postmaster. Improvements in apparatus for enabling tele-
graph-stations to simultaneously communicate with each
other.

Claims.—(1.) In apparatus for enabling telegraph-stations
to simultaneously communicate with each other, a switch-
board consisting of a series of upper metal bars crossing a
series of lower metal bars, insulating material between said
bars, threaded plug-holes for plugs at each crossing, switches
or bridging connections near the ends of said bars, terminal
screws also at the end of each bar, in combination with systems
of wiring and apparatus as set out in Figs. 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, and 11 inclusively. (2.) In manual apparatus for
enabling telegraph-stations to simultaneously communicate
with each other, a switchboard consisting of a series of upper
and lower bars crossing each other, plug-holes for plugs at the
crossings, switches or bridging connections near the ends of
said bars, or a commutator or commutators in combination
with a four-way commutator, four three-way commutators,
relay armatures repeating direct on to main lines, a system of
wires connecting switches, magnets, sounders, galvanometers,
relays, transmitting keys, and said commutators, all as and
for the purposes described, and as illustrated in Figs. 4
and 5. (3.) In automatic apparatus for enabling telegraph-
stations to simultaneously communicate with each other,
a switchboard consisting of a series of upper and lower
bars crossing each other, plug-holes for plugs at the crossings,
switches or bridging connections near the ends of said bars,
in combination with four- and three-way commutators, relay
magnets, transmitting keys, galvanometers, sounders, and a
system of wires whereby the transmitting sounder armatures
repeat the signals on to the main line, all as and for the purposes
described, and as illustrated in Figs. 6 and 7. (4.) In manual
apparatus for enabling telegraph-stations to simultaneously