FEB. 20.] THE NEW ZEALAND GAZETTE. 679
at each floor or landing presented to the well, and these doors
are operated automatically by suitably inclined guide-rails
positioned at the top and bottom of the elevator-cage and
operating against flanged rollers mounted on the front end of
the said doors. The said guide-rails operate in such a manner
that as the cage ascends or descends from a landing the door
moves automatically across the well or shaft, thereby obviating
all liability of accidents to persons who may pass through an
open doorway when the elevator is absent. When applied
to mining shafts the doors comprised in the invention can be
constructed of strong wire netting or other suitable meshed
material, in order that the ventilation of the drives and
workings would not in any manner be impaired by the use
of the improved safety apparatus.

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

(Specification, 6s. 9d.; drawing, ls.)

No. 23840.-19th December, 1907.-RICHARD JOHN FRY,
of 111 Princes Street, Carlton, near Melbourne, Victoria,
Australia, Mechanic. Improvements in machines for bending
and shaping blanks in the manufacture of horse-shoes.

Extract from Specification. — The operation of the invention
is explained as follows: When the parts of the machine are
in their relative positions illustrated in Fig. 1 of the drawings,
and when motion is imparted to the belt-pulley 4, the intermediate
gearing transmits motion to the shafts 3, 8, and 11.
The shafts 8 and 11, together with their respective pinions
13 and 12, and their rollers or compressors 31, rotate uniformly
and inversely towards each other as indicated by the arrow-
heads in the drawings. A suitably prepared blank 38 is placed
in position to rest upon the pins 37, and having one end
abutting against the inner face of the stop 40, when the hand-
lever 19 is pulled forwardly. This action forces the loose
pinion 13 mounted on the shaft 8 to engage with the stud 14
on the collar 15, when the said pinion immediately commences
to rotate with the shaft 8 on which it is mounted, thereby
forcing the rack 16 and the die-carrying plate 21 downwards,
said plate 21 assuming the position shown by dotted lines
in Fig. 3. On the downward motion of the plate 21 the point
of the die or former 32 presses against the centre of the blank
38 supported on the pins 37, and bends it to the approximate
shape required. In its passage between the two inversely revolving
rollers or compressors 31 the sides of the bent blank or shoe are smoothed, pressed into the finished
shape, and the heel-ends are squeezed. As the rack 16 approaches
the termination of its downward travel it automatically
forces the pinion 13 out of engagement with the stud 14 on the
collar 15 and stops the motion of the die-carrying plate 21,
when the formed shoe can be removed or is ejected from around
the die 32. The hand-lever 18 on the left-hand side of the machine
is then forwardly moved, which action forces the loosely
mounted pinion 12 to engage with the stud 14 on the collar 15
affixed to the shaft 11. This operation has the effect of rotating
the said pinion 12 with its shaft 11 to draw the rack 17
downwardly, and simultaneously raise the die-carrying plate
21 to its normal position. The bevelled projection 30 on the
top of the said rack 17 forces the pinion 12 out of engagement
with the collar 15 on the shaft 11 at the latter end of its travel
or stroke, and when the die-carrying plate 21 has reached its
highest position.

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

(Specification, 8s. 6d.; drawing, 2s.)

No. 23843.-19th December, 1907.-JAMES NORMAN CAUGHT,
of Marli House, Esplanade, St. Kilda, Victoria,
Australia, Engineer. Improvements in that type of marine
and other steam-engine in which a reciprocating motion is
converted into a rotary motion.

Claims.-(1.) In an engine, the combination with the cylinder
having a reciprocating piston, of a revolvable driving-shaft
in alignment therewith, and provided on its periphery with a
double return screw, and means for connecting the piston rod
or rods with said screw to impart a rotary motion to said shaft.
(2.) In an engine, the combination with the cylinder having
a reciprocating piston, of a driving-shaft provided with a double
return screw on its periphery, said shaft being mounted
revolvably in thrust bearings in alignment with the cylinder,
and thrust pieces adapted to engage with said screw and
pivotally mounted in a cross-head affixed to the end of the
piston rod or rods as and for the purpose described.

(3.) In an engine, the combination with the parts claimed
in the preceding claim of a cross-head made in two halves,
and working between guide-rods reciprocatingly with a piston,
each half of said cross-head being recessed on its inner face
to receive the back of the thrust pieces, said recesses being so
constructed as to permit of said thrust pieces assuming the
angle formed by both threads of the screw of the driving-
shaft. (4.) In an engine in which the driving-shaft is in alignment
with the piston, the combination with the cylinder
of an inlet and exhaust cylinder, one on each side of and
parallel therewith, each being provided with two piston-
valves arranged to open and close the ports leading to and from
the cylinder, and means for operating said valves. (5.) In an
engine in which the driving-shaft is in alignment with the
piston, the combination with a cylinder between an inlet and
exhaust cylinder, each of which latter has two piston-valves
arranged to open and close the ports leading to and from the
cylinder of a sleeve secured to the driving-shaft, and provided
on its periphery with a single return screw, which engages with
tongue pieces pivotally mounted in bifurcations formed on the
inner ends of arms secured to the outermost ends of the valve-
rods, and slidably mounted on guide-rods parallel with the
driving-shaft, said bifurcations being recessed to receive the
back of the tongue pieces, said recesses being so shaped as to
permit of said tongue pieces assuming the angle formed by the
single return screw in the sleeve on the driving-shaft.

(Specification, 10s.; drawing, 3s.)

No. 23852.-18th December, 1907.-MONOTYPE MACHINE
(COLONIAL PATENTS) SYNDICATE, LIMITED, of 43 and 43A
Fetter Lane, London, E.C., England (the assignees of John
Sellers Bancroft, of Philadelphia, Pennsylvania, United States
of America, and Mauritz C. Indahl, of Philadelphia, Pennsylvania,
United States of America). Improvements in or relating
to record-strip composing-machines.

Claims.-(1.) In a record-strip composing-machine, the
combination with two series of punch-bars l that represent
the positioning of the matrices of a third series that represents
the dimensioning of the mould, one of each series being operative
from a key common to any such three members. (2.) In
a record-strip composing-machine, the combination with a
separate series of punch-bars l slotted to provide dimensioning
perforations of a detachable frame (for example, 55) for a
series of members (for example, the selectors 8, 13) operative
between the keys and the punch-bars, whereby the whole
series may be readily removed and rearranged or another
substituted therefor. (3.) In a record-strip composing-machine,
the combination with a detachable series of members (for
example, the selectors 8, 13) disposed side by side of transversely
disposed bails 58, 59, co-operating with opposed shoulders
57 on the selectors, and a wedging device (for example,
the cam 61) for holding the bails in the locking position for the
purpose described. (4.) In a record-strip composing-machine,
the combination with a series of punch-bars l and operating
members carried in fixed relation to the main frame of a key
bank carried by a frame (for example, 20) that may be lifted
or swung away from the main frame with or without a second
removable portion to this frame carrying the operating mechanism
that is more immediately connected with the keys for the
purpose described. (5.) In a record-strip composing-machine,
the combination with a frame (for example, 20) hinged to
the main frame and carrying rocking arms 27, 28, of a series
of members (for example, the selectors 8, 13) whose ends are
entered in recesses formed in the arms 27, 28, whereby the
arms normally engage them, but can swing freely away from
them or back into engagement with them with the hinged frame
portion. (6.) In a record-strip composing-machine, the
combination with three groups of punch-bars, and a series of
key-bars allotted each to two punch-bars selected from different
groups of a rocking arm 30, having a cross-head 31 to engage projections
25 of several key-bars simultaneously, such arm also
having operative engagement with mechanism for positively
operating a punch-bar of the third group. (7.) In a record-strip
composing-machine, the combination with a controlling valve
for the motor of a reciprocating punch-bar actuator, of opposed
spring-controlled tappets (for example, arms 80) arranged to
move the valve in opposite directions when released, a trip 84
to hold the starting-tappet until released by a member operated
from a key, and a trip 85 to hold the shut-off tappet until
this is released by the movement of the actuator. (8.) In a
record-strip composing-machine, the combination with the
parts set forth in claiming clause No. 7 of a device (for example,
the bell-crank lever 90, link 89, and catch 88) connected to
the actuator, and moved thereby to replace the starting-