1036
THE NEW ZEALAND GAZETTE.
[No. 46

arranged, combined, and operating substantially as described,
and illustrated in the drawing. (2.) In apparatus for the
purpose described, a loop or bridle pivoted upon one buffer, and
a coupling-hook pivoted upon an opposing buffer, the hook
being curved in its forward upper end to cause it to lift said
bridle, and curved at its lower end to cause it to rise when it
contacts with the opposing buffer, substantially as and for
the purpose specified and illustrated. (3.) In apparatus for
the purpose described, a bridle pivoted upon one buffer, and
a coupling-hook pivoted upon an opposing buffer, said hook
having a projection upon its upper end, over which a locking-
bar of said bridle passes for the purpose of locking said hook
in engagement with a coupling-pin, said bridle being con-
nected by a link or links with a lever by which it may be
operated, substantially as and for the purposes described, and
illustrated in the drawings. (4.) In apparatus for the pur-
pose described, a bridle pivoted upon a buffer and a coupling-
hook pivoted upon an opposing buffer, a tongue working in
an opening in the buffer upon which the bridle is pivoted
being operated simultaneously with said bridle, and engaging
with and releasing the coupling-hook from the coupling-pin,
substantially as and for the purposes specified and illustrated.
(5.) In apparatus for the purpose described, a bridle con-
sisting of two corresponding cheeks one upon each side of
the buffer behind the buffer-head, said cheeks being con-
nected at their upper ends by a locking-bar, and pivoted by
a bolt passing through the buffer, a stud projecting from
each cheek, and links pivoted thereon connecting said bridle
with a lever fulcrumed upon the vehicle, by which said
bridle is operated, substantially as and for the purposes
described and illustrated. (6.) In apparatus for the purpose
described, a bridle pivoted upon the buffer, a link or links
connecting said bridle with a lever fulcrumed upon the
vehicle, and a swing link pivoted upon the vehicle above the
operating-arm of said lever for the purpose of locking said
lever when the bridle has been raised, substantially as and
for the purposes described and illustrated.
(Specification, 5s. ; drawings, 10s. 6d.)

No. 11863.—5th August, 1899.—EDWARD STEVENS, of
Collins Street, Melbourne, Victoria, Manager. An improved
fire-fending shutter or screen, applicable to windows and to
fire-screening purposes generally.*

Claims.—(1.) In the construction of an improved metal
fireproof shutter for covering windows and other openings in
buildings, the use of wire interwoven or laid together trans-
versely so as to form an uniform mesh or gauzing, such as
E, mounted and secured in a metal frame such as A, B, and
C, or other suitable frame, substantially as described, and
as shown in the drawings. (2.) In the construction of
an improved fire-fending shutter or screen applicable for
covering windows and other openings in buildings, the use of
a perforated metal plating of an uniform mesh mounted,
fitted, and secured in a metal frame such as A, B, and C,
or other suitable frame, substantially as before described.
(3.) As improved fire-fending shutters and the means of ope-
rating the same simultaneously, the combination of a frame
and covering, the latter consisting of a wire gauzing or per-
forated plating such as A, B, C, and E, with grooved wheels
attached such as H, with a guide-frame such as K, L, and
rail such as J, a horizontal toothed ratchet-bar such as G,
gearing with a toothed wheel such as M, mounted on a
spindle with a hand-wheel such as N, adjusted, applied, and
working together and in combination as before described,
and as shown in Fig. 6 of the drawings.
(Specification, 4s. 3d. ; drawings, 8s.)

No. 11889.—14th August, 1899.—THOMAS EAGLE MARTIN,
of Barmer, near King’s Lynn, Norfolk, England, Farmer
and Machinist. Improvements in seed-drills, horse-hoes,
and like agricultural implements.*

Claims.—(1.) In a seed- or manure-drill, horse-hoe, or like
agricultural implement, the combination with a main frame
of a swinging frame supported by arms or chains depending
from the said main frame, and carrying the coulters, hoes, or
the like, and a pedal arranged in proximity to a driver’s seat,
and connected by suitable means with the said swinging
frame in such a manner that the movement of the said pedal
serves to communicate lateral movement to the said swing-
ing frame relatively with the main frame, substantially as
and for the purpose described. (2.) In a seed- or manure-
drill, horse-hoe, or the like, the combination of a main
frame, an auxiliary frame carried by arms or chains depend-
ing from a main frame, a rock-shaft pivoted in hangers
depending from the said main frame, means for connecting
one end of the said rock-shaft to the swinging frame, and a
pedal upon the other end of the said rock-shaft, all sub-
stantially as and for the purpose described. (3.) The im-
proved means described for steering the coulters or tines of a
seed- or manure-drill, horse-hoe, or the like by means of the
feet of a person riding upon such seed-drill or horse-hoe,
substantially as described, and illustrated in the drawings.
(Specification, 3s. 6d. ; drawings, 8s.)

No. 11921.—24th August, 1899.—BIRNS KERSHAW, of 62,
Livesey Street, Manchester, England, Manufacturer. Im-
provements in and connected with circular knitting-ma-
chines.*

Claims.—(1.) In circular knitting-machines, a device
adapted to apply automatically to fabric whilst being circu-
larly knitted designs, marks, or letters in one or more colours,
all substantially as and for the purpose set forth. (2.) In a
device for automatically applying designs, marks, or letters
to fabric whilst being knitted in a circular knitting-
machine, one or more printing-wheels arranged in frictional
contact with and rotated by the knitted fabric, all substan-
tially as set forth. (3.) In a device for automatically apply-
ing designs to fabric whilst being knitted in a circular
knitting-machine, one or more blocks adapted to be brought
in and out of contact with the knitted fabric, all substan-
tially as and for the purpose set forth.
(Specification, 4s. 9d. ; drawings, 16s.)

No. 12482.—23rd March, 1900.—HENRY HERBERT HEN-
NING, of Brisbane, Queensland, Electrical Engineer. A new
or improved automatic pump for pneumatic-tired wheels.

Claim.—A single-acting air-pump connected to the inlet-
valve of the tire and having a safety-valve interposed, said
pump articulated to a clip fitting over the rim, a spring
interposed between the top of the pump-case and the end of
piston-rod, end of rod provided with wheel carried in cheek
hinged to rod and to a stay articulated to a clip fitting over
the rim, a cam secured to the frame and having a track
grooved for the reception of the wheel on end of piston-rod,
as described, and illustrated in the drawings.
(Specification, 4s. 6d. ; drawings, 5s. 6d.)

No. 12526.—12th April, 1900.—CHARLES SHENCK BRADLEY,
of New York, United States of America, Electrical Engineer,
and CHARLES BORROWS JACOBS, of East Orange, New Jersey,
United States of America, Chemist. Improvements in manu-
facture of nitrogen compounds from atmospheric nitrogen.

Claims.—(1.) The process of making a nitrogen compound
consisting in subjecting a mixture of carbide and coarsely
ground coke to the action of heat in an electric furnace,
whereby the carbide is caused to fuse and coat the particles
of coke, allowing the mass to cool below the temperature of
fusion of the carbide, and subjecting the porous mass at such
lower temperature to the action of nitrogen. (2.) The pro-
cess of forming the cyanide of an alkaline-earth metal, con-
sisting in subjecting an alkaline-earth compound mixed
with carbon in excess of the amount required for the forma-
tion of carbide to the heat of an electric furnace, whereby a
porous carbide composition, consisting of particles of carbon
coated with carbide, is formed, allowing the said porous com-
position to cool below the temperature of fusion of the
carbide, and subjecting the porous mass at such lower
temperature to the action of nitrogen. (3.) The process of
forming a cyanide which consists in forming a mixture of
coking-coal with an alkaline-earth compound, there being
present in the mixture an amount of carbon in excess of that
required for the formation of carbide, submitting the said
mixture to a coking-heat to form a porous composition con-
sisting of coke having the alkaline-earth compound diffused
through it, then subjecting the resulting material to the
heat of an electric furnace to cause formation of carbide
and fusion of such carbide in and on the surface of the coke,
forming a porous carbide composition, then allowing the
mass to cool, and subjecting the mass to the action of
nitrogen or nitrogen-bearing gases while at a temperature
below the fusion-point of the carbide. (4.) The process of
forming a cyanide which consists in forming a mixture of
coking-coal with an alkaline-earth compound, there being
present in the mixture an amount of carbon in excess of
that required for the formation of carbide, submitting the
said mixture to a coking-heat to form a porous composition
consisting of coke having the alkaline-earth compound dif-
fused through it, then subjecting the resulting material to
the heat of an electric furnace to cause formation of carbide
and fusion of such carbide in and on the surface of the coke,
forming a porous carbide composition, then allowing the
mass to cool, and during such cooling subjecting the mass to
the action of nitrogen or nitrogen-bearing gases while at a
temperature below the fusion-point of the carbide. (5.) The