78 THE NEW ZEALAND GAZETTE. [No. 2

body of the rabbit when passing in and out of the burrow
over such mat, to induce the rabbit to remove such adhering
matter by licking it off with the tongue, as described. (2.) As
a means for killing rabbits, the combination of a mat or skin
of flexible fabric with a poisonous pasty compound to be
coated on such mat, to be used in and when advisable near
the mouth or opening of rabbit-burrows and like rabbit-
resorts, prepared, applied, and used in bringing about the
destruction of rabbits by poisoning and in manner described.
(Specification, 2s. 6d.)

No. 15779.—18th December, 1902.—JENS GABRIEL FRED-
RIK LUND, of Bjorn Farmandsgade 2, Christiania, Norway,
Engineer. Improvements in walls.

Claims.—(1.) An improved wall of artificial stones or the
like, characterized by the arrangement that each stone pos-
sesses a tongue on the one side, and is provided on the other
side parallel to the tongue with the corresponding groove,
and the stones are so built in horizontal rows between the
side supports that in each row a continuously consecutive
horizontal tongue is formed, which engages in the con-
tinuous groove or the row of stones above it, and the ad-
jacent surfaces of the stones are doubly sloped so that each
layer acts by itself as an arch against vertical pressure, and
at the same time alternately as an arch against horizontal
pressure from both sides alternately; that, moreover, the
adjacent surfaces of the stones in two courses lying one
upon another are alternated against one another, so that
the alternate bonding is obtained in the vertical direction,
whereby the wall operates as an elastic arch against hori-
zontal pressure and the tongues of each row of stones
engaged direct with the grooves of the following course,
without intermediate material and in firm connection there-
with, substantially as set forth. (2.) In combination in a
wall, the improved building-blocks, constructed and operating
substantially as set forth with reference to the drawings.
(Specification, 3s.; drawings, 1s.)

No. 15781.—18th December, 1902.—WILLIAM ERNEST
HUGHES, of Queen’s Chambers, Wellington, New Zealand,
Patent Agent (nominee of George Gibbs, care of Rapid
Transit Subway Construction Company, of Park Row Build-
ing, New York, United States of America, Electrical Engi-
neer). Improvements in or relating to electric railways.

Claims.—(1.) An electric railway in which the vehicles are
furnished with air-brakes, and having devices located in the
track adapted to engage with the air-brake apparatus for
the purpose of applying the brakes, such application of the
brakes causing directly or indirectly an interruption of the
electric-power circuit. (2.) An electrically propelled vehicle
furnished with air-brakes, and having a pneumatically ope-
rated motor-controller in which the application of pneumatic
power is governed by electro-magnets, the circuits of which
magnets are regulated by a manually operated master switch
or controller, said manually operated switch being connected
to the air-brake apparatus in such a manner that when the
brakes are applied the said switch is caused to break the
governing circuit, and thereby insure the return of the
motor-controller to the zero or “off” position in which the
power circuit is interrupted. (3.) The modification of the
invention in which the governing circuit of the electro-
pneumatically operated controller is provided with a switch
adapted to engage with a device in the track, and thereby
open said governing circuit and cause an interruption of the
supply of electric power when said device is moved to an
operative position. (4.) The modification of the invention
in which a switch in the governing circuit of an electro-
pneumatically operated controller is arranged to be operated
by a part of the brake apparatus so as to break the governing
circuit whenever the brakes are applied. (5.) An electrically
propelled vehicle in which the power circuit is provided with
a circuit-breaker of the kind in which the movable member
is operatively connected with the piston of a cylinder to
which air under pressure can be admitted, in such a manner
that when the cylinder is open to the atmosphere the
movable member is caused to break the circuit, said cylinder
being provided with a cock adapted to engage with a device
in the track so as to be opened, and thereby cause an inter-
ruption of the power-circuit when said device is moved to an
operative position. (6.) An operating and controlling system
for electrically propelled railway vehicles and trains fur-
nished with air-brakes arranged so that when the track
signals are at “Danger” the brakes are automatically applied
and the power circuit simultaneously interrupted, substan-
tially in the manner described with reference to the draw-
ings.
(Specification, 10s. 6d.; drawings, 2s.)

No. 15782.—18th December, 1902.—NELSON HISS, of 27,
Washington Square, New York, United States of America,
Gentleman. Improvements in or relating to traction ma-
chinery or apparatus.

Claims.—(1.) In traction apparatus comprising a carrier
and one or more driving-cables, one or both ends of which
are anchored, the employment of a stationary tension-device
the effort of which is transmitted to the driving-cable on
both sides of the driving-pulley, substantially as described.
(2.) In traction apparatus, the combination with a carrier
provided with pulleys or sheaves, of a driving-cable having
one or both ends anchored and passing around fixed pulleys
on opposite sides of the carrier, and also around the pulleys
on the carrier, in such a manner that one part of the cable is
supported by or tends to move the carrier in one direction
and another part tends to support or move the carrier in the
opposite direction. (3.) In traction apparatus, the combina-
tion with a carrier of a driving-cable fixed at one end and at
its other end connected to a stationary tension weight, and
passing around fixed pulleys at each side of the carrier and
pulleys on the carrier in such a manner that one part of the
cable is supported by or tends to move the carrier in one
direction and another part tends to support or move the
carrier in the opposite direction, the whole effort of the
tension weight being transmitted to the cable on both sides
of the driving-pulley. (4.) In traction apparatus, the com-
bination with a carrier of a driving-cable 7, anchored at one
end and passing around fixed pulleys 8 and 11 on opposite
sides of the carrier, and a stationary tension-device at the
other end of the cable, the whole effort of which is trans-
mitted to the cable on both sides of the driving-pulley.
(5.) In traction apparatus, the combination with a carrier
of a driving-cable 7, which passes around the fixed pulleys 8
and 11 on opposite sides of the carrier to sheaves 2 and 3
thereon, and having one end anchored at 10, the other end
being provided with a stationary tension weight, the whole
effort of which is transmitted to the cable on both sides of
the driving-pulley. (6.) In traction apparatus, the combina-
tion with a carrier of a driving-cable having a fast and a
loose end, and formed with two bights in which sheaves 2
and 3 on the carrier rest, and a stationary tension weight
attached to the loose end of the cable to keep it taut.
(7.) In traction apparatus, the combination with a carrier
provided with sheaves 2 and 3, of supplemental cables 18
and 21 embracing the sheaves and having one of their ends
anchored and their other ends connected to pulleys 20 and
23, which are embraced by a driving-cable 7, which is con-
nected at 10, and carrying at its other end a stationary
tension weight. (8.) In traction apparatus, the combina-
tion with a carrier having two double pulleys of a driving-
cable anchored at one end, and thereafter passing under the
double pulleys, then around fixed pulleys 11 and 8 and over
the double pulleys, and a stationary tension weight attached
to the free end of the cable. (9.) In traction apparatus, the
combination with a carrier of a series of driving-cables
anchored at one side of the carrier and embracing sheaves
thereon, and each provided with a separate stationary
tension-device at their free ends. (10.) In traction appa-
ratus, the combination with a car such as 1 of a weighted
carrier such as 24 connected thereto, and having pulleys 2
and 3 around which a driving-cable 7 passes, so that one
part of the cable tends to support or move the carrier in one
direction and the other part is supported by or tends to
move the carrier in the opposite direction, said cable being
fixed at one point at least. (11.) In traction apparatus, a
carrier, two movable sheaves connected thereto, a driving-
pulley, a driving-cable fixed at one point and carried over
said sheaves and said driving-pulley so as to pass when
operated from one movable sheave to the driving-pulley and
thence to the other sheave, and a tension-device applied to
said cable. (12.) The complete apparatus substantially as
described or illustrated in Fig. 1, or Fig. 2, or Fig. 3, or
Fig. 4, or Figs. 5 and 6, or Fig. 7, or Fig. 8 of the drawings.
(Specification, 7s. 6d.; drawings, 4s.)

No. 15783.—18th December, 1902.—JOHN WILLIAM KIN-
CAID, of Cincinnati, Hamilton, Ohio, United States of
America, Locomotive Engineer. Mechanical stokers.

Extract from Specification.—The object of my invention is
a mechanical stoker for feeding fuel into furnaces, in which
the fuel is fed above the grate-bars by a plunger which is
actuated by the acceleration of steam expanding in a
cylinder, in which the plunger is advanced automatically at
varying rates of speed to throw the fuel to all parts of the
furnace, and in which the conveyor for feeding fuel in front
of the plunger is coupled to the plunger, to keep the amount of
fuel in proportion to the rate of reciprocation of the plunger.
[NOTE.—The number and length of the claims in this case pre-
clude them from being printed, and the foregoing extract from the
specification is inserted instead.]
(Specification, 10s.; drawings, 3s.)