1654
THE NEW ZEALAND GAZETTE.
[No. 77

boundaries of a belt or zone of magnetic intensity, agitating
the support until the substances of different susceptibility
move laterally in opposite directions across said belt or zone,
and collecting the separated substances at different points,
and conducting them away separately, substantially as de-
scribed.
(Specification, 12s.; drawings, 10s. 6d.)

No. 12898.—22nd August, 1900.—ELMER GATES, of Chevy
Chase, Maryland, United States of America, Scientist. Im-
provements relating to the separation of mixed granular or
pulverised substances.

Claims.—(1.) The method of separating from a mixture
particles of relatively greater electrostatic capacity than the
remainder which consists in passing the mixture through
a field of convective discharge of static electricity, thereby
charging said mixture electrostatically, and diverting the
particles of greater electrostatic capacity by causing the
electrified mixture to pass through another field of convec-
tive discharge of static electricity, the direction of whose
lines of force intersects that of the first, substantially as
described. (2.) The method of separating from a mixture
particles of relatively greater electrostatic capacity than the
remainder which consists in passing the mixture through a
field of convective discharge of static electricity, thereby
charging said mixture electrostatically, and diverting the
particles of greater electrostatic capacity by causing the
electrified mixture to pass through another field of convec-
tive discharge of static electricity, the direction of whose
lines of force intersects that of the first, and whose discharge
terminal is located midway between the terminals of the
first, substantially as described. (3.) The method of sepa-
rating diamagnetic particles from a mixture containing them
which consists in feeding the mixture into a relatively in-
tense part of a magnetic field, simultaneously charging the
mixture electrostatically, and subjecting the electrostatically
charged mixture to the action of the magnetic field until the
diamagnetic particles to be separated have gradually moved
out from the mixture into a relatively weak part of the field,
and then collecting said particles as heads, substantially as
described.
(Specification, 7s.; drawings, 8s.)

No. 12899.—22nd August, 1900.—ELMER GATES, of Chevy
Chase, Maryland, United States of America, Scientist. Im-
provements relating to the separation of mixed granular or
pulverised substances.

Claim.—The method of separating from a mixture par-
ticles of conductive material which consists in passing an
electric current through a moving body of the mixture, and
diverting the conducting particles by causing the moving
mixture to pass through an auxiliary field of force, substan-
tially as described.
(Specification, 3s. 3d.; drawings, 5s. 6d.)

No. 12900.—22nd August, 1900.—ISAAC DAVIS, of 37,
Manor Road, Brockley, Kent, England, Engineer. Improve-
ments in means or apparatus for heating and purifying or
filtering feed-water and the like.

Extract from Specification.—It is well known that solu-
bility of deposits in feed-waters and the like disappears with
increase of temperature to a point when the deposits become
insoluble and mechanically mixed with the water and settle,
in which state they can be separated; and the present inven-
tion is designed with the object of producing a convenient
apparatus for effecting water purifying or filtering with the
aid of steam admitted into a chamber in which it spreads
out and comes into immediate contact with the feed or
other water, the film or sheet of water being heated by direct
contact of steam, whilst it is distributed over plates arranged
above one another, the steam passing over and between said
plates, heating them and the water while the water is dropping
from plate to plate; and means for separating fatty matters
from the water are provided. This invention has reference to
that type of apparatus in which the water purifying and filter-
ing chamber is arranged with its upper part constricted and
provided with horizontal baffle- and spreading-plates for liquid
and fluid, supported on a central stem, or not so provided,
as may be desired.

Claim.—The combination of parts of the apparatus for
heating and purifying or filtering feed-water and the like, as
and for the purpose set forth, and shown by the drawings.
(Specification, 4s. 9d.; drawings, 13s.)

No. 12902.—22nd August, 1900.—THE BRITISH WESTING-
HOUSE ELECTRIC AND MANUFACTURING COMPANY, LIMITED, of
Westinghouse Building, Norfolk Street, Westminster, Eng-
land, Manufacturers (assignees of Norman Wilson Storer,
of Vine Street, Edgewood Park, Allegheny, Pennsylvania,
United States of America). Improvements in and relating to
electric generators and motors.

Claims.—(1.) For an electric generator or motor, an armature
having a slotted core with a number of conductors located in
each slot and connected in multiple to the commutator bars,
those conductors which lie side by side in the slots being
connected to the same commutator bar, substantially as
described. (2.) For an electric generator or motor, an arma-
ture constructed substantially as described with reference to
the drawing.
(Specification, 3s. 3d.; drawings, 8s.)

No. 12903.—22nd August, 1900.—THE BRITISH WESTING-
HOUSE ELECTRIC AND MANUFACTURING COMPANY, LIMITED, of
Westinghouse Building, Norfolk Street, Westminster, Eng-
land, Manufacturers (assignees of Charles Ira Young, of Land
Title Building, Philadelphia, Pennsylvania, United States of
America). Improvements relating to systems of alternating-
current electrical distribution.

Claims.—(1.) The combination with an electric generator,
and an engine for driving the same, of a centrifugal governor
for the engine and an inertia governor for controlling the
action of the centrifugal governor. (2.) The combination
with a plurality of engines and a plurality of electric gene-
rators connected in parallel to distributing conductors and
respectively driven by said engines, of a centrifugal governor
and an inertia governor for each engine acting in opposition
to maintain the generators in synchronous operation. (3.) The combination with an electric generator, and an
engine for driving the same, having a centrifugal governor,
of an inertia governor connected to the valve-gear and
serving to reduce the lead of the valves to a minimum in
case of an electrical short circuit. (4.) The means for main-
taining synchronism between two or more alternating-cur-
rent generators supplying distributing-mains in parallel,
substantially as described.
(Specification, 7s.; drawings, £1 1s.)

No. 12906.—23rd August, 1900.—MARSHALL WILFRED
HANKS, of Pittsburgh, Pennsylvania, United States of
America, Electrical Engineer. Improvements in terminals
and supports for Nernst lamp glow ers.

Claims.—(1.) The process of applying permanent terminals
to the ends of a Nernst lamp glower, which consists in
attaching a conducting material to the ends of the glower,
and causing the said conducting material to socket itself
within the said end by applying intense heat to the conduct-
ing material and the glower-end. (2.) In the process
characterized in the first claim, attaching a lead-wire to the
glower and its terminal by bringing the conducting material
to a state of complete or partial fusion within its socket, and
plunging the end of the lead-wire into or against the melting
or molten metal, and permitting the same to cool. (3.) A
modification of the process characterized in the second
claim which consists in securing to the end of the glower a
chalk-like porous material, then baking the same upon the
said end, and attaching a lead-wire to the baked material by
any suitable conducting solder. (4.) A modification of the
processes characterized in the first and third claims which
consists in attaching to the glower by either of the processes
therein described not only the terminal lead-wires, but also
one or more anchor-wires intermediate between the glower-
ends. (5.) A terminal for Nernst lamp glow ers consisting of
a solid body of metal socketed in the end of the glower. (6.) A terminal for a Nernst lamp glower consisting of a
metallic globule socketed within the end of the glower, in
combination with a conducting wire united with the said
globule. (7.) A glower for Nernst lamps having a solid body
or head of metal socketed within each of its ends.
(Specification, 5s. 9d.; drawings, 5s. 6d.)

No. 12907.—23rd August, 1900.—HENRY NOEL POTTER, of
Pittsburgh, Pennsylvania, United States of America, Electri-
cal Engineer. Improvements in ballast resistances and out-
cuts for Nernst lamps.

Claims.—(1.) The process of operating a cut-out in the
heater circuit of Nernst lamps which consists in causing the
rupture of the heater circuit at the proper time by the direct
or indirect action of the ballast resistance in the glower cir-
cuit. (2.) In the process characterized in the first claim,
causing the heat developed in the ballast resistance to
operate directly or indirectly a thermostatic element in the
heater circuit. (3.) In the process characterized in the first
claim, causing the heater circuit to be ruptured by the action
of the expansion of the ballast resistance under the influence
of heat. (4.) In the process characterized in the first claim,
causing the heater circuit to be ruptured through the medium
of the heat developed in the neighbourhood of the ballast