Improvements in Locks and Fastenings for Railway Carriage and other Doors.
Year: 1889

page_text: Date of Application, 1st Apr., 1889
Complete Specification Left, 1st Jan., 1890-Accepted, 1st Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in Locks and Fastenings for Railway Carriage and
other Doors.
We, JAMES MATTHEW MATTHEWS, and FRANK BUCKLAND Junr., of 85 Stonebridge
Road, South Tottenham, in the County of Middlesex, Engineers, do hereby declare
the nature of this invention to bo as follows:-
The object of this invention is to simplify the construction of Locks of the class
described in former Letters Patent granted to James Matthew Matthews one of the
present petitioners and numbered and dated 2504 of 1884 and 9820 of 1885
respectively and also to reduce the thickness and size to enable them to be more
readily adapted to private carriages: in constructing Locks on our improved plan we
allow a part of the bolt to project beyond the front plate of the Lock and so arrange
the other end of the bolt that the action of the spring keeps the projecting part of the
bolt in position beyond the Lock-case; upon a door being pushed or pulled to this
projecting portion of the bolt engaging with a suitable striking-plate is forced inwards
and on the door being closed is in turn forced by the direct action of the spring into
a suitable receptacle in the standing pillar or door post.
In order to insert a spring in the manner described in specification No. 9820
of 1885 we provide a similar opening in the front plate but instead of making the stud
with projecting webs and providing slots to correspond in the front of the case we
provide in the opening in the case through which the spring passes one or more webs
or other suitable stops and we make the stud with slots or other appliance to
correspond to permit of the insertion and withdrawal of the stud and spring and with
suitable slots or other appliance to act as stops to hold the stud and spring in
position.
In another form of our improved Lock we construct the bolt as hereinbefore
described and coil the spring round the spindle of the handle one end of the spring
being held by a suitable provision on the Lock-case or bolt and the other end by a
suitable provision on the handle or escutcheon; in order to admit of the Lock being
manipulated from the inside of the door or vehicle we sometimes provide levers with
suitable connections working in the usual manner through openings in the garnish-
rail; in Locks constructed on this plan in order to remove or insert a spring it is only
necessary to remove the handle and insert a spring in the hole through which the
spindle passes.
The details of construction of these Locks may be varied to suit the different uses to
which they are applicable.
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COMPLETE SPECIFICATION.
Improvements in Locks and Fastenings for Railway Carriage and
other Doors.
We, James MattHEW. MATTHEWS, and FRANK BUCKLAND Jr., of 85, Stonebridge
Road, South Tottenham, in the County of Middlesex, Engineers, do hereby declare
the nature of this invention and in what manner the same is to be performed to
he particularly described and ascertained in and by the following statement :-
The objects of this invention are, first, to simplify the construction of locks of the
kind described in the specifications to Letters Patent dated 1st February, 1884,
No. 2504, and 19th August, 1885, No. 9820, respectively and granted to James
[Price 8d.1

page_text: Matthew Matthews, one of the present applicants; and secondly, to enable such locks
to be constructed of reduced thickness and size, so as to render them more suitable for
use in the doors of private carriages and other road vehicles.
In the accompanying drawings, Fig. 1 is a side elevation of a lock constructed in
accordance with the present improvements; the cover-plate having been removed. 5
Fig. 2 is a corresponding front elevation. Fig. 3 is a front elevation of the striking
plate Fig. 4 being a corresponding side elevation. Figs. 5 and 6 are respectively a
side and an end elevation of the bolt. Fig. 7 is a vertical section shewing, in side
elevation, a stud which permits of the spring being readily withdrawn and replaced.
Figs. 8 to 10 are respectively an under-side view, a top view and a side view of the
stud itself; Fig. 11 being a side view of the stud in a position at right angles to that
represented in Fig. 10. Figs. 12 to 16 shew a more compact form of lock. Figs. 17
to 20 illustrate a modification in which the improved lock is manipulated from inside
the carriage by a lever working in the usual manner through an opening in the
garnish-rail. Fig. 21 represents partly in section and partly in plan the manner in
which in the more compact form of lock the actuating spring is coiled round the
spindle of the handle; Figs. 22 to 26 being detail-views of the escutcheon and
spring.
When the bolt A is in its normal position, a part of the bolt projects beyond the
front plate B; the bolt being forced into such position by a helical spring C, which
acts against the lower part a¹ of the bolt. As the door is pushed or pulled to, the
projecting part a arrives against an incline d on a suitable striking plate D (Fig. 3),
and is thereby forced inwards, against the resistance of the spring C, until the door is
fully closed, whereupon the part a is caused by the direct action of the spring C to
enter, through the slot d' in the striking plate, a recess in the standing pillar or door-
post. The part a is chamfered, as shewn in Figs. 2, 5 and 6, in order to facilitate its
movement over the incline d (Figs. 3 and 4). The spindle of the handle passes
through a square hole a² in the bolt in the usual manner.
The spring C is placed in the lock through an opening in the front plate B. This
opening is closed by a stud E, whereby the spring is retained in position (Figs. 2
and 7 to 11). Two projections bb, which are exactly opposite one another, extend
into the opening. The opposite sides of the stud are slotted at ee, and its face
provided with a cross slot e; the latter corresponding in width with the projections b.
The opposite end of the stud to that in which the slot e' is cut may be provided with
a pin or projection 2 for centreing the spring C. The stud and spring having been
forced, with the aid of a turn-screw or similar instrument, through the opening in the
front plate B, the stud is turned a quarter of a revolution, whereupon the notch el
arrives opposite the projections bb, which, after the withdrawal of the turn-screw has
permitted the spring C to force outwards the stud E, serve, by contact with the
bottom of the notch e', to limit the outward movement of the stud and to prevent its
rotation. When it is desired to take out the spring, it is merely necessary to press
back the stud E until the notch e¹ is free of the the projections bb, and then to turn
the stud so as to bring the slots e e opposite the said projections, whereupon the
spring C forces out the stud through the opening in the plate B.
A more compact construction is shewn in Figs. 12 to 16; the bolt A being actuated
by a helical spring surrounding the spindle of the handle as hereinafter more
particularly described with reference to Figs. 21 to 26. The part 2 (Figs. 15 and 16)
of the striking plate D, against which the inclined side a³ of the bolt A (Fig. 13)
bears when the door is closed, is inclined; the result being that the door is kept
tightly drawn against the door-frame.
In Figs. 17 to 20, the bolt A is operated by the lever F, which is pivoted to the
lock-plate at f and connected by a link F¹ to the bolt A. The lever F projects
through an opening in the garnish-rail, and is worked from inside the carriage in the
usual way.
According to the design illustrated in Fig. 21, the actuating spring Cis coiled
round the spindle G of the handle H; the two parts being by preference inserted
together so that the spring may be removed by withdrawing the handle. The end

page_text: coils of the spring situated near the bolt A are bent in the manner represented in
Fig. 26, so as to conform to the shape of the spindle G whereby that end of the spring
is rotated. The remainder of the spring is, however, free to partake of a rotative
movement about the axis of the spindle and the whole spring is capable of moving in a
longitudinal direction. The end c of the spring C₁ is turned outwards and engages
with one of the projections & on the back of the escutcheon K when the parts are in
position. The projections & enter slots in a plate L secured beneath the escutcheon
to the door; each slot 1 being large enough to receive one of the projections k together
with the tail c of the spring . The paris are put together in the following
manner: The escutcheon and the spring are applied to the spindle; one end of the
spring engaging with the squared part of the spindle and the other end with one of
the projections on the escutcheon. The spindle is then placed in the lock and
the escutcheon is turned sufficiently to impart the required tension to the spring and
to bring the projections A, together with the tail c, opposite the notches 1, whereupon
the spindle is thrust home and secured in position by the nut M.
:
Instead of the outer end of the spring C engaging with and being held by the
escutcheon and the inner end of the spring engaging with the spindle, the outer end
may be held by the spindle (in a similar manner to that already described with
special reference to Fig. 26) and the inner end by contact with a pin projecting from
the lock-case. Or the spring may engage at one end with the escutcheon and at the
other end with a pin or projection on the bolt. In either of these cases, the action of
the parts is substantially the same as in the principal construction, one end of the
spring being secured to a fixed part whilst the other end rotates with the spindle so
that power may be stored up in the spring prior to the spindle being finally
secured.
Having now particularly described and ascertained the nature of this inven-
tion and in what inanner the same is to be performed, we claim :
:-
1
1. The improved lock or fastening for railway-carriage and other doors, composed
of parts constructed and fitted together substantially as herein described.
2. In a lock or fastening for railway-carriage and other doors, the combination, with
the bolt A having a chamfered projecting part a, of the removable spring engaging
with the tail a' of the bolt, the stud E secured in the front plate B of the lock, and
the striking plate D formed with an incline d and a slot d', substantially as and for
the purposes set forth.
3. In a lock or fastening for railway-carriage and other doors, the employment for
securing an actuating spring such as C in position, of a removable stud E formed
with side slots e e for enabling the stud to pass projections 6 in the front plate B
of the lock, and with a face-slot el, for the reception of a turn-screw or similar
instrument and for engaging with the projections b, substantially as herein
described.
4. In a lock or fastening for railway-carriage and other doors, the employment
of a helical actuating spring surrounding the spindle of the handle and secured at
one end against rotation upon the spindle and engaging at the other end with the
escutcheon or with the lock-case, substantially as herein described, and whereby the
spindle and surrounding spring may be withdrawn without disturbing the lock.
Dated this 1st day of January 1890.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Agent for the Applicants.