Improvements in Apparatus for Bolting or Locking Wagon or other Doors or Gates.
Year: 1899

page_text: Date of Application, 31st Jan., 1899
Complete Specification Left, 31st Oct., 1899-Accepted, 9th Dec., 1899
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Bolting or Locking Wagon or other
Doors or Gates.
I, JAMES EDWARD CREE, of 8, Atholl Crescent, in the City of Edinburgh, Ranch-
man, do hereby declare the nature of this invention to be as follows:-
This invention, which relates to apparatus for bolting or locking wagon or
other doors or gates, has for its object to provide a simple and effective locking
device, particularly applicable for the doors of railway wagons or vans, wherein
the locking bolt or bolts are withdrawn by means of a key which serves to retain
the bolt or bolts out of engagement so long as it remains in the lock whilst its
removal permits of the bolt or bolts being automatically shot out to secure the
door or doors.
The locking bolt or bolts which are shot out by means of springs are each fitted
with a rack or formed with rack teeth with which are geared the teeth of a pinion
carried in a lock case or frame.
This pinion is formed with a central orifice of square, triangular or other
shape so that by inserting a correspondingly shaped stem such as that of an
ordinary railway carriage door lock key the pinion may be turned and by means
of its teeth engaging the rack teeth of the bolt or bolts may be withdrawn
against the power of the springs. The toothed pinion is centred in the lock
frame so that it may turn freely, but in order to hold the bolt or bolts out of
engagement when withdrawn and while the key is in the lock a ratchet wheel is
fitted in the lock to turn on the same axis as the pinion and is engaged by a
spring pawl to retain it so that whilst free to turn in one direction it cannot
turn back. A central orifice corresponding in shape to that in the pinion is
formed in the ratchet wheel and when the key is inserted therein and passed
through the orifice in the loose pinion and turned to withdraw the locking bolts
both wheels are locked together and held by the pawl engaging the ratchet so
that the bolts cannot be shot out. When the key is taken out the pinion is again
free to turn and the locking bolts are shot out by the pressure of the springs
acting on them.
By preference two or more bolts are used, a vertical bolt being placed on each
side of the pinion and arranged to move simultaneously in opposite directions
so that the door may be locked at its upper end and at the bottom, and when a
third bolt is used it is placed horizontally with its teeth in gear with the pinion
which is made of extra width. When the locking apparatus is applied to double
folding doors such as are used in railway vans, the horizontal bolt terminates at
the edge of the door and is adapted when operated to come into contact with and
actuate a second horizontal bolt fitted in line with it on the second half of the
door. This second horizontal bolt is toothed and gears with a pinion with which
is geared a locking bolt or top and bottom locking bolts on the second half of
the door these bolts being fitted with light springs which normally act to keep
the bolts out of their locking position. When the one half of the door is opened

page_text: by insertion and turning of the key the one horizontal bolt pushes the other on
end and through the pinion shoots the bolts of the second half door so that the
latter is held closed. A dummy key may be passed through an orifice in the
pinion of that door to retain the bolts in the locking position in which case the
unlocking of the first half door will not affect the second, whilst on withdrawal
of the dummy key, which may be held from turning by the orifice in the lock
plate, the locking bolts are withdrawn by the springs and the door may be opened.
Dated this 30th day of January 1899.
WALLACE FAIRWEATHER.
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
Saint Vincent Street, Glasgow, Agent for the Applicant
Improvements in Apparatus for Bolting or Locking Wagon or other
Doors or Gates.
man,
I, JAMES EDWARD CREE, of S, Atholl Crescent, in the City of Edinburgh, Ranch-
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, which relates to apparatus for bolting or locking wagon or
other doors or gates, has for its object to provide a simple and effective locking
device, particularly applicable for the doors of railway wagons or vans, wherein
the locking bolt or bolts are withdrawn by means of a key which serves to retain
the bolt or bolts out of engagement so long as it remains in the lock whilst its
removal permits of the bolt or bolts being automatically shot out to secure the
door or loors.
The invention is illustrated by the accompanying drawings, Fig. 1 being an
elevation of the improved apparatus with the cover of the lock case removed, and
Fig. 2 a section through the lock frame on the line, while Fig. 3 is a similar
view to Fig. 1 of a modified form of the apparatus.
The locking bolt or bolts A, B, C, which are shot out by means of springs D
are each fitted with a rack or formed with rack teeth A, B, C, at their inner
ends with which are geared the teeth of a pinion F carried in a lock case or
frame F.
Although the lock may be provided with a single bolt only, by preference two
or more bolts are used, a vertical bolt being placed on each side of the pinion and
arranged to move simultaneously in opposite directions so that the door may be
locked at its upper end and at the bottom, and when a third bolt is used it is
placed horizontally with the teeth in gear with the pinion which is made of extra
width.
This pinion E is formed with a central orifice E¹ of square, triangular, octa-
gonal or other shape so that by inserting a correspondingly shaped stem such as
that of an ordinary railway carriage door lock key the pinion E may be turned
and by means of its teeth engaging the rack teeth A, B, C, of the bolt or
bolts A, B, C, the latter may be withdrawn against the power of the springs D.
The toothed pinion E is centred in the lock frame F so that it may turn freely,
but in order to hold the bolt or bolts A, B, C. out of engagement when withdrawn
and while the key is in the lock a ratchet wheel G is fitted in the lock to turn
on the same axis as the pinion and is engaged by a spring pawl H to retain it so

page_text: that whilst free to turn in one direction it cannot turn back. A central orifice
corresponding in shape to that in the pinion and directly in line therewith is
formed in the ratchet wheel and when the key is inserted therein and passed
through the orifice E in the loose pinion E and turned to withdraw the locking
bolts A, B, C, both wheels E, G, are locked together and held by the pawl H
engaging the ratchet G so that the bolts A, B, C, cannot be shot out.
the key is taken out the pinion E is again free to turn and the locking bolts A,
B, C, are shot out by the pressure of the springs D acting on them, which springs
may either be placed where shown, or be placed within the lock case.
When
Instead of placing a bolt on each side of the pinion, the bolts A and B may be
placed in line with each other and an additional pinion geared to the pinion E
in the manner hereinafter described with reference to Fig. 3, so as to give the
proper direction of motion.
In a slightly modified form, illustrated at Fig. 3, the ratchet wheel G and pawl
may be replaced by a locking finger I, which is pushed in between the teeth of
the spur wheel E to retain the bolts out of or in locking position.
In order, when it is rendered desirable, to place both bolts on one side of the
lock frame, and so actuate these in opposite directions, a second toothed wheel J,
such as already described, may be geared, as shown, to the toothed wheel E to
actuate one of the bolts.,
When the locking apparatus is applied to double folding doors such as are
used in railway vans, the horizontal bolt terminates at the edge of the door and
is adapted when operated to come into contact with and actuate a second hori-
zontal bolt fitted in line with it on the second half of the door. This second
horizontal bolt is toothed and gears with a pinion with which is geared a locking
bolt or top and bottom locking bolts on the second half of the door, these bolts
being fitted with light springs which normally act to keep the bolts out of their
locking position. When the one half of the door is opened by insertion and
turning of the key, the one horizontal bolt pushes the other on end and through
the pinion shoots the bolts of the second half door so that the latter is held closed..
A dummy key may be passed through an orifice in the pinion of that door to
retain the bolts in the locking position in which case the unlocking of the first
half door will not affect the second, whilst on withdrawal of the dummy key,
which may be held from turning by the orifice in the lock plate, the locking
bolts are withdrawn by the springs and the doors may be opened.
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:-
Apparatus for bolting or locking wagon or other doors or gates, the several
parts of which are constructed, combined and arranged to operate substantially
as described.