2120
THE NEW ZEALAND GAZETTE.
[No. 62

amount from the received impulses, and in impressing on
the sending circuit impulses of a frequency sensibly equal to
or substantially different from that of the locally produced
impulses, substantially as described.

(Specification, 14s. 3d.; drawing, 1s.)

No. 22904.—28th May, 1907.—HENRY MARK LEVINGE, of
Okato, New Zealand, Medical Practitioner. An altazimuth
instrument.

Claims.—(1.) An altazimuth instrument, comprised by a
circular base-piece divided into the degrees of a circle, a
standard mounted vertically thereon and pivoted at the
centre of the base-piece, a dial centrally pivoted to the side
of the standard so as to lie in a vertical plane and divided
into the degrees of a circle, a plumb-line suspended in front
of the centre of such dial, and a line suspended around the
periphery of the dial and depending vertically downwards on
each side, substantially as specified. (2.) The altazimuth
instrument, substantially as described and explained, and as
illustrated in the drawings.

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

No. 22911.—29th May, 1907.—LEONARD TASMAN CHAM-
BERS and WILLIAM EASTWOOD THOMPSON, both of 461
Swanston Street, Melbourne, Victoria, Australia, Manufac-
turers (assignees of Cornelius J. Lane and Ralph J. Crane,
both of Holly, Oakland, Michigan, United States of America,
Inventors). An improved fence-making machine.

Extract from Specification.—This invention relates to
fence-making machines. It has for its object an improved
machine adapted and intended to produce fencing made from
wire, in which longitudinal strands of indefinite length are
secured together by stay-wires that pass across the fabric.
The longitudinal strands are crimped slightly at the points
at which the stay-wires are secured to them, and crimped or
bent more extensively intermediate the points at which the
stay-wires are secured to the longitudinal strands. Each of
the stay-wires is secured to each of the several longitudinal
strands in a way to produce a very firm fabric. Each stay-wire
is secured to the outside strand of the fabric by coiling the end
of the stay-wire with one or more full coils around the
longitudinal strand, and each stay-wire is secured to the in-
termediate strands by first forming the stay-wire a loop and
coiling the doubled part of the wire comprising the loop
with a full coil or more than a full coil around the longi-
tudinal strand. The bend of the longitudinal strand which
occurs at the point where the stay-wire engages it is pro-
duced in the wire just before the coiling of the loop or the
coiling of the end of the wire around the longitudinal strand
takes place. The intermediate kinks or bends in the longi-
tudinal strands are produced after the stays are secured to the
strands, and preceding the winding of the fabric upon a drum
or coil for temporary storage purposes.

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

(Specification, 15s.; drawing, 8s.)

No. 22918.—30th May, 1907.—ALBERT PETERSSON, of Alby,
Sweden, Doctor of Philosophy. Method of charging electric
furnaces for producing carbide from lime and carbon.

Claims.—(1.) The process of producing carbide from lime
and carbon, which consists in successively introducing the
lime and the carbon in an electric furnace in such a manner
that the said carbide-forming materials continuously form
separate upright columns in close contact with each other,
and leading an electric current through the column of
carbon for heating the same to a point where the layers of
the said carbon and lime columns that are in direct contact
with each other react to form carbide, substantially as and
for the purpose set forth. (2.) The process of producing
carbide from lime and carbon, which consists in successively
introducing the lime and the carbon in an electric furnace in
such a manner that the carbon continuously forms a central
column in the furnace and the lime a column closely sur-
rounding the column of carbon and in direct contact with
the same, and leading an electric current through the
column of carbon for heating the same to a point where the
layers of the said carbon and lime that are in direct contact
with each other react to form carbide, substantially as and
for the purpose set forth.

(Specification, 3s. 9d.; drawing, 2s.)

No. 22919.—30th May, 1907.—ALBERT PETERSSON, of
Alby, Sweden, Doctor of Philosophy. Process of continu-
ously producing carbide from lime and carbon.

Claims.—(1.) The process of continuously producing car-
bide in an electric furnace, which consists in successively
charging carbon and lime into the furnace unmixed with
each other in such a manner that they form separate up-
right columns in close contact with each other, leading an
electric current through the column of carbon for heating
the same to a point sufficient for forming carbide with the
lime, and burning the combustible gases formed during the
reaction in the column of lime for preliminary heating the
same, substantially as and for the purpose set forth. (2.)
The process of continuously producing carbide in an elec-
tric furnace, which consists in successively charging carbon
and lime into the furnace unmixed with each other in such
a manner that they form separate upright columns in close
contact with each other, leading an electric current through
the column of carbon for heating the same to a point suffi-
cient for forming carbide with the lime, removing the com-
bustible gases formed during the reaction through the column
of lime, and introducing air into the said column of lime
for burning the said combustible gases for preliminary heat-
ing the lime charge, substantially as and for the purpose set
forth.

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

No. 22923.—30th May, 1907.—MASSEY-HARRIS COMPANY,
LIMITED, of 915 King Street West, Toronto, Ontario,
Canada, Manufacturers (assignees of Charles McLeod,
Manager, Patent Department, and Robert Henry Verity,
General Superintendent, both of No. 915 King Street West
aforesaid). Improvements in conveyors for harvester-binders.

Claims.—(1.) A conveyor, comprising a belt of canvas or
the like, in which the ends of the belt are connected by a
tension device comprising two parts connected respectively
to the ends of the belt, the one a bar and the other a drum
journaled thereon, a coil-spring being provided within the
drum and having its ends connected respectively with the
bar and the drum, means also being provided for holding one
of the parts from rotating whereby the other part tends to
wind upon itself the end of the canvas to which it is con-
nected, substantially as described. (2.) A detailed construc-
tion according to claim 1, in which the drum is formed of
two or more parts, each provided with a spring, and links are
provided at the ends of the bar and between the drums by
means of which the bar may be connected to one end of the
canvas, substantially as described. (3.) A detailed construc-
tion according to claims 1 and 2, in which the bar is journaled
in the links, and one or more of the links are provided with
latches having a releasable engagement with the bar to pre-
vent its turning, substantially as described. (4.) A detailed
construction according to claim 3, in which the latches are
provided with a spring or other means for holding them in
engagement with the bar, substantially as described. (5.) A
tensioning device for elevator-belts constructed substantially
as described, and as illustrated in the drawings.

(Specification, 5s. 9d.; drawing, 1s.)

No. 22925.—31st May, 1907.—THEOCISTE POLJAKOFF-
KOWTUNOFF, of Tjora, near St. Petersburg, Russia, Manu-
facturer. An improved excavator.

Claim.— A machine for carrying on earthwork (excava-
tor) characterized by a combination of knives fastened to a
movable frame, placed on a trolley which can move on
rails, and transporters, the knives cutting a thin and wide
layer of earth when the frame travels on the trolley or the
trolley itself on the rails, which earth is then carried away by
the transporters and withdrawn from the machine.

(Specification, 10s. 9d.; drawing, 11s.)

No. 22931.—9th May, 1907.—ROBERT KILLOCH DONALD, of
Loch, Victoria, Australia. Improvements in cradle-crushers.

Extract from Specification.—The object of the invention is
to provide means for readily fixing, removing, or adjusting the
liner plates in such crushers, whilst a further improvement
consists of feeding the ore under a series of rollers, the first
of which is lighter than the others, in order to obtain a more
satisfactory crushing by the adjustment of the weights to
regulate the motion of the rollers.

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

(Specification, 3s. 3d.; drawing, 1s.)