936
THE NEW ZEALAND GAZETTE.
[No. 25

lamps for the vestibules or doors of the train, which are
automatically lighted as the train comes to a standstill and
extinguished as the train starts again. (13.) The means
substantially as described for automatically reversing the
connection of the dynamo with the main circuit while leav-
ing the field-magnet of the dynamo unchanged, so that a
reversal of direction will cause a reversal of the armature-
current, which will be neutralised, however, by the re-
versal of connection. (14.) The extension of the aforesaid
system to a train of cars, each provided with a battery,
lamps, lamp-resistances, and controlling-devices, substan-
tially as shown in Fig. 5. (15.) In a system of the kind
described, means for maintaining a current from the battery
through the commutator of the dynamo when the latter is
at rest, to insure the restarting of the generating action of
the dynamo. (16.) In a system of the kind described, a
dynamo capable of simultaneously supplying the lamps and
charging the battery in multiple with the lamps, a regulator
for maintaining the potential of such dynamo constant, and
means for reducing the potential of the lamp branch below
that of the battery branch, whereby the system has the
economy due to direct operation of the lamps from the
dynamo, is independent of special battery-charging runs, and
the current-volume is in exact ratio to the demands of the
lamps and battery independently of the speed.
(Specification, £1 7s. ; drawings, 7s.)

No. 16083.—13th March, 1903.—OSBORNE WALL, Gun-
smith, and ROBERT CLINTON HUGHES, Lawyer, both of New
Plymouth, New Zealand. Improvements in and relating to
sash-locks.

Claims.—(1.) The combination with a bolt of a rotatable
collar thereon adapted to be placed across the meeting edges
of the parts locked, substantially as described. (2.) The
combination with a spring-actuated bolt of a rotating bear-
ing element held in its end and a collar loose on said bolt,
substantially as described. (3.) The combination with the
sheet-metal casing of a spring-urged bolt therein, a finger-
grip on one end, a depending hasp on said finger-grip, a de-
pending plate 19, a staple secured to said plate and passing
through the hasp, a loose collar on the bolt and a bearing-
wheel in the end of said bolt, substantially as described.
(4.) The combination with a casing of a spring-urged bolt
contained therein, a loose collar on and a wheel secured in
the end of said bolt, and a supplementary bolt parallel there-
with, substantially as described. (5.) The combination with
a sheet-metal casing and a depending plate 19 of a staple
secured to said plate, a spring-urged bolt in said casing, a de-
pending hasp on one end of the bolt to take over said staple,
a loose collar on and a wheel in the opposite end of the said
bolt, a supplementary bolt parallel to the main bolt, and
held-in straps forming one piece with the casing, sub-
stantially as described.
(Specification, 3s. 6d. ; drawings, 1s.)

No. 16084.—10th March, 1903. — JOHN OUTRED, Gentle-
man, and JAMES McQUEEN, Importer, both of Dunedin, New
Zealand. Improvements in the pedal action and speed of
cycles.

Claims.—(1.) In cycles driven by endless chains with pedals,
either for motive or auxiliary power, the combination of a
free-wheel action in the hub of each pedal with a spring
capable of adjustment for returning pedals to the highest or
normal position, said pedals working with a reciprocating
motion and acting independently, all substantially as shown
and described, and as illustrated in the drawing. (2.) In cycles
driven by an endless chain and pedals, in combination, a set
of bevel wheels arranged to double the speed given to the
small sprocket wheel, with reciprocating pedals furnished
with free-wheel action to each so that any length of stroke
short of the maximum arranged for can be adopted, and each
pedal arranged to act independently of the other, all substan-
tially as shown and described. (3.) In combination, in cycles,
independent pedals capable of varying strokes at will, fur-
nished with adjusting springs to bring same to normal posi-
tion, with bevel gearing arranged to double the speed given
to the sprocket wheel by the chain, substantially as described
and explained, and as illustrated in the drawing.
(Specification, 3s. 9d. ; drawings, 1s.)

No. 16088.—13th March, 1903.—WILLIAM NEWTON DU-
MARESQ, of 12, Rylett Crescent, Shepherd’s Bush, London,
Middlesex, England, Electrical Engineer. Improvements in
variable-speed gearing.

Claims.—(1.) The improved variable-speed gearing for
enabling the speed transmitted from the actuating me-
chanism to the driven shaft to be varied at will, con-
sisting in a drum mounted upon the latter and composed
of a series of arms capable of sliding radially towards and
away from the centre of such shaft, and each carrying a
grooved wheel (over which grooved wheels a transmission-
cord passes) or a chain pinion (over which a transmission-
chain passes), substantially as specified. (2.) The improved
variable-speed gearing for enabling the speed transmitted
from the driving to the driven shaft to be varied at will,
consisting in a drum mounted upon each of such shafts, and
either or both of such drums being composed of a series of arms
capable of sliding radially towards and away from the centre
of such shaft, and each carrying a grooved wheel (over which
grooved wheels a transmission-cord passes) or a chain pinion
(over which a transmission-chain passes), substantially as
specified. (3.) In drums constructed as set forth in claims 1
and 2, mounting each of the pulleys or pinions upon its axis
by means of a roller clutch which permits same to rotate
thereon in one direction and causes it to remain locked so
as to prevent its rotation in the opposite direction, sub-
stantially as and for the purposes specified. (4.) In the
arrangement set forth in the preceding claims, the means for
simultaneously expanding or contracting the sections of one
drum, or of simultaneously expanding those of one drum and
contracting those of the other drum, consisting in a scroll
thread connected to the part carrying the expanding arms,
projections on which latter engage such scroll thread, in
combination with means for rotating the latter in either
direction independently of the driving or driven shaft,
substantially as specified. (5.) In the arrangement set
forth in claims 1, 2, and 3, the means for simultaneously
expanding or contracting the sections of one drum, or
of simultaneously expanding those of one drum and con-
tracting those of the other drum, consisting in two scroll
threads connected to the part carrying the expanding
arms and arranged one on each side of such arms, pro-
jections on which latter engage respectively with the two
scroll threads, in combination with means for rotating
the latter in either direction independently of the driving
or driven shaft, substantially as specified. (6.) In the
arrangement set forth in the preceding claims, the
means for simultaneously expanding or contracting the
sections of one drum, or of simultaneously expanding
those of one drum and contracting those of the other drum,
consisting in a scroll thread connected to the part carrying
the expanding arms, projections on which latter engage such
scroll thread, in combination with means for rotating the
latter in either direction independently of the driving or
driven shaft, such means consisting in a bevel wheel secured
to the shaft of the drum and a second bevel wheel connected
to the scroll-thread plate, in combination with a pinion
capable of being brought into gear with the two bevel wheels,
and with a roller capable of being brought into contact with
two cylindrical surfaces connected respectively with each of
the bevel wheels, substantially as specified. (7.) In the ar-
rangement set forth in claims 1 and 2, the means for simul-
taneously expanding or contracting the sections of one drum,
or of simultaneously expanding those of one drum and con-
tracting those of the other drum, consisting in a set of
screws respectively engaging a projection on each of the
expanding arms, in combination with means for simul-
taneously rotating such screws in either direction, substan-
tially as specified. (8.) In the arrangement set forth in
claims 1 and 2, the means for simultaneously expanding or
contracting the sections of one drum, or of simultaneously
expanding those of one drum and contracting those of the
other drum, consisting in a set of screws respectively en-
gaging a projection on each of the expanding arms, in com-
bination with means for simultaneously rotating such screws
in either direction, such means consisting in a bevel wheel
secured to the shaft of the drum, a second bevel wheel formed
with a crown, wheel-engaging pinions mounted upon each
of such screws, and a pinion capable of being brought into
gear with the two bevel wheels, and also of a roller capable
of being brought into contact with two cylindrical surfaces
connected respectively with each of the bevel wheels, sub-
stantially as specified. (9.) In the arrangement set forth in
claim 2, the means for simultaneously expanding the sections
of one drum and contracting the sections of the other drum,
consisting in longitudinal racks mounted to slide in slots in
the shaft of each of such drums, and engaging teeth formed
in the boss of the plate, in relation to which the arms carry-
ing such sections are capable of moving inwards and out-
wards radially, in combination with means for simultaneously
moving the racks in the same direction, substantially as
specified. (10.) In the arrangement set forth in claim 2,
the means for simultaneously expanding the sections of one
drum and contracting the sections of the other drum, con-
sisting in longitudinal racks mounted to slide in slots in the
shaft of each of such drums, and engaging teeth formed in
the boss of the plate, in relation to which the arms carrying
such sections are capable of moving inwards and outwards
radially, in combination with means for simultaneously