Improvements in Master Locking Apparatus Applicable to the Working of Railways and to Purposes generally wherein such Locks are Required.
Year: 1885

page_text: Improvements in Master Locking Apparatus Applicable to the
Working of Railways and to Purposes generally wherein
such Locks are Required.
I, JOHN STEVEN of N° 13 Ronald Street, Glasgow in the County of Lanark,
Railway Signal Superintendent, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MASTER LOCKING APPARATUS APPLICABLE TO THE WORKING
OF RAILWAYS AND TO PURPOSES GENERALLY WHEREIN SUCH LOCKS ARE REQUIRED,"
to be as follows:-
This invention relates to improvements in locking apparatus and it consists of
a drawer or box whose function is to contain a key, ticket or other article the use
of which it is desired to prevent until certain other things are done or performed
according to the nature of the employment of the improved apparatus the said box
being locked up and released by the mechanism hereinafter described.
The drawer or box is contained in a casing and from one side of it a tongue
projects horizontally. When the box is in its closed position a vertical bar is
situated in front of this tongue and so that the tongue comes against its inner or
rear side. This vertical bar is at its upper end connected to a crank or arm formed
or fixed on a horizontal shaft carried in bearings in the casing and at a point in
its length the said vertical bar has a slot formed in its edge next to the drawer
or box which slot is equal to or slightly greater in length than the depth of the
tongue.
On the horizontal shaft two other cranks or arms are formed or fixed and into
the space between them a pin projects from each of the said cranks. A lever
centred within the case has one of its ends situated between the said pins and a
hole or eye large enough to receive one or other of the pins is formed in the said
end whilst the other end of the lever is acted on by a spring and has an arm or bar
jointed to and projecting at right angles from it. The free end of the said arm or
bar enters an inner casing which has a hinged lid, part of which projects through
an opening in the side of the outer casing. On the upper side of the said lid a bar
or lever is centred at one end and towards its other end furnished with one or
more pins projecting downwards through the hinged lid into the inner casing or
two or more such bars similarly provided may be employed in the apparatus.
Opposite the free end or ends of the said bar or bars another bar or bolt is placed
TD 071

page_text: and so connected by a crank or arm to the horizontal shaft before referred to as to
be capable of having its end slid over the hinged lid of the inner case when the
bar with pins is raised and so lock down the hinged lid.
By this arrangement of apparatus when it is desired to take a key, ticket or
other article from the drawer, a key of pre-arranged shape must be inserted in the
inner case which is of the same shape so as to prevent the insertion of a key other
than that proper to the apparatus. This key is inserted so as to act on the arm
jointed to the lever first referred to and push the said lever against the action of
the spring until the end of it, with the eye or hole therein is intermediate between
and free from the pins projecting from the cranks on the horizontal shaft. This
renders the horizontal shaft free to be operated so as to raise the vertical bar until
the notch or recess in it comes opposite the tongue on the side of the drawer. The
insertion of the key in the inner case acting on the pins projecting inwards through
the hinged lid raises the bar or bars to which these pins are connected from
opposite the bolt and the motion of the horizontal shaft which raises the vertical
bar at the same time shoots the bolt over the hinged lid of the inner case and so
locks up the key contained therein.
The key or other article which it is desired to remove from the drawer can then
be taken by pulling the drawer outwards and until the said drawer is replaced and
locked in its closed position by the reverse movement of the horizontal shaft, the
inner case cannot be opened to remove the key it contains. When the said key
is so removed the spring acting on the lever forces the eye on to one of the pins
projecting from the horizontal shaft thereby locking the said shaft.
The apparatus hereinbefore described whilst applicable generally in cases where
a master or check lock is required is especially applicable to be used for railway
purposes to combine train ticket and train tablet working and under a modification
of it the horizontal shaft and its connections may be dispensed with, the pins set
in the cranks or arms, for locking the said shaft by entering the eye in the end of
the lever, being in that case formed on or connected to the drawer and the tongue
on the said drawer serves to lock down the lid of the inner case by passing over
it when the said drawer is pulled out.

page_text: Improvements in Master Locking Apparatus Applicable to the
Working of Railways and to Purposes generally wherein
such Locks are Required.
I, JOHN STEVEN of N° 13 Ronald Street, Glasgow in the County of Lanark,
Railway Signal Superintendent, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This invention relates to improvements in locking apparatus and it consists of
a drawer or box which is locked up and released by the mechanism hereinafter
described and whose function is to contain a key, ticket or other article the use of
which it is desired to prevent until certain other things are done or performed
according to the nature of the employment of the improved apparatus.
On the accompanying drawings Figure 1 is a vertical section of the apparatus,
figure 2 a plan with the lid or cover A¹ removed, and figure 3 an end elevation with
the end A of the outer case removed. As seen by these figures the drawer or
box B, is contained in an outer casing A, and it has on one side of it a projecting
strip or tongue C secured near its upper part, a recess being made in the length of
the said strip as indicated at a figure 2.
The back part B¹ of the drawer is closed or covered over and constitutes a stool
or seat for a bracket D, having two vertical cheeks D', in which pins b, are so fixed
as to project towards each other horizontally as seen at figure 2, a space being
left between the adjacent ends of the pins for the reception of one arm of a bell
crank lever E centred at F on a pin projecting from a plate c, screwed or otherwise
secured to a sole or seat within the case A. The said arm of the lever E has a hole
or eye d, large enough to receive one or other of the pins b, whilst the other end
of the lever has an arm or bar H jointed to and projecting at right angles from it.
The said arm or bar works through guide brackets I, J, and it has a spiral spring e,
in conjunction with it, one end of which bears on the bracket I and the other end
on a pin passing through the bar. The free end of the said arm or bar enters an
inner casing which has a lid K hinged at its inner part whilst its outer part has a
tag or lifting piece g, projected through an opening in the front of the outer cnsing
and also a piece h, screwed or otherwise connected to its upper side and by which
the part of the opening in the case above the lid K is closed when the lid is shut
down. On the upper side of the lid K a bar or lever L, is centred at one end, the
fulcrum of the bar being at right angles to the hinge of the lid and towards its
other end the said bar is furnished with one or more pins i, projecting downwards
through the lid into the inner casing or two or more such bars similarly provided
may be employed in the apparatus. The free end of the bar or lever L, works in
the recess a of the projection C, on the side of the drawer or box B, and iminediately
below the lever L, a projecting heel M is made on the lid K, the upper surface of
the said heel when the lid is closed, being below the under surface of the projection C
on the side of the drawer as indicated at figure 1.

page_text: By this arrangement of apparatus when it is desired to take a key, ticket or
other article from the drawer, a key of pre-arranged shape is, by raising the lid K,
inserted in the inner case which is of the same shape as the key to prevent the
insertion of a key other than that proper to the apparatus. This key is inserted so
as to act on the arm or bar H jointed to the lever E, and push the said arm and
lever against the action of the spring e, until the end of the lever having the eye
or hole d in it, is intermediate between and free from the pins b, projecting from
the cheeks of the bracket D. The insertion of the key in the inner case acting
on the pins i, projecting inwards through the hinged lid K raises the bar or lever L
to which these pins are connected from and above the slot or recess a in the
tongue C. on the side of the drawer which can then be opened for the removal of
the key or ticket contained therein. The opening of the drawer causes the tongue C,
to ride over the heel M on the lid K, of the inner case and until the drawer is
again closed so as to bring the recess a in the tongue C, above the heel M the lid K
is locked down and cannot be lifted for the removal of the key contained in the
inner case.
When the drawer is shut and the key in the inner case is so removed
the spring e acting on the bar H forces the eye d of the lever E, on to the pin b
thereby locking the drawer until the key is inserted in the inner case.
The key
used is preferably a tablet with a notch in its periphery to receive the end of the
bar H, and in the event of its being attempted to insert a tablet larger in diameter
than that made for the individual apparatus the periphery of the said tablet acting
on the bar H, forces the eye d, of the lever E, on to the other pin b¹, and so locks
the drawer whilst if a smaller tablet than the proper one is attempted to be used
its periphery fails to act on the bar H, and release the lever from the pin b.
The apparatus berein before described whilst applicable generally in cases where
a master or check lock is required is especially applicable to be used for railway
purposes to combine train ticket and train tablet working and under a modification
of the mechanism the arrangement of locking apparatus for which Letters Patent
were granted to me bearing date the 22nd day of May 1884 N° 8057 may be used
in conjunction with the drawer or box instead of the lock bereinbefore described.
This modified arrangement is illustrated in vertical section at figure 4, and in
plan at figure 5, of the drawings and as seen by these figures instead of the
bracket D, with pins b, b1 secured to the drawer B, a horizontal shaft E, is
employed the said shaft having two crank arms D, from which pins e, el project
towards each other one end of a lever C, centred on the inner casing being situated
between the adjacent ends of the pins and having a hole in it large enough to allow
one or other of the pins to pass into. The other end of the lever C, is acted on by
a spring f and it has a bar g, connected to and projecting at right angles from it
into the inner case. To another crank or arm n, formed on or secured to the
shaft E, a vertical bar H, is connected and at a point in its length the said vertical
bar has a slot x formed in its edge next to the draw or box B, which slot is equal
to or slightly greater in length than the depth of the tongue C. Opposite the free
end of the lever L, centred on the cover K of the inner case a bolt or bar is placed
and so connected by a crank or arm m to the horizontal shaft F as to be capable
of having its end slid over the hinged lid of the inner case and so lock down the
lid when the bar L, is raised as before set forth.
With this arrangement of the apparatus when it is desired to take a ticket, key
or other article from the drawer or box a key or tablet is, as before set forth,
inserted in the inner case and acts on the end of the bar g, so as to push the lever C,
against the action of the spring finto a position intermediate between and free
from the pins e, e¹. This renders the horizontal shaft E, free to be operated so as
to raise the vertical bar H, until the notch or recess x, in it comes opposite the
tongue C¹ on the side of the drawer. The insertion of the key or tablet in the
inner case also acting on the pins projecting from the bar L, through the hinged
lid of the case raises the said bar from opposite the bolt 1, and the motion of the
horizontal shaft E, which raises the vertical bar H, at the same time shoots the
bolt over the hinged lid of the inner case and so locks up the key contained

page_text: therein and also the shaft E itself until the drawer B, is again returned to its closed
position and so frees the tongue C¹ from the slot x, in the bar H.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. The arrangement and combination of parts constituting the improved master
locking apparatus hereinbefore described with reference to figures 1, 2, and 3 of the
drawings and the employment thereof to combine train ticket and train tablet
working on railways and otherwise as set forth.
2. The combination of a tablet or other key, bar H, lever E, and drawer or box B,
substantially as and for the purposes set forth.
.
3. The combination of a tablet or other key lever L, lid K, with heel M, and
drawer B, with a tongue thereon substantially as and for the purposes set forth.
4. The combination with the drawer or box B, of the interlocking mechanism
hereinbefore described with reference to figures 4 and 5 of the drawings.
Dated this Tennis fifth, dass of Navanshor 1905
GEO. M. CRUIKSHANK,
135, Buchanan Street, Glasgow,
Agent.