Improvements in and connected with the Doors of Railway Carriages and other Vehicles.
Year: 1898

page_text: Date of Application, 28th Jan., 1898
Complete Specification Left, 21st Oct., 1898-Accepted, 10th Dec., 1898
PROVISIONAL SPECIFICATION.
Improvements in and connected with the Doors of Railway
Carriages and other Vehicles.
I, JOHN EDWARD DEAN, of Barker's Lane, Ashton-on-Mersey, in the County of
Chester, Builder, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in the doors of railway carriages and other
vehicles and in the method of hanging or carrying such doors.
The invention has for its object to so construct and hang such doors as to prevent
the trapping or crushing of a traveller's person or clothes, between the fixed door
jamb and the hinged side of door.
As such doors are at present constructed and hung accidents occur very frequently
owing to carelessness or want of caution.
According to my invention I propose to so construct and hang such doors as that
it shall be impossible for any accident to take place by trapping, at the hinged side of
the door.
To this end I curve the door jamb or fixed stile to which the door is hinged. In
other words the door jamb against which the inner side of the door moves forms in
cross section a segment of a circle. The inner side of the door is correspondingly cut
away or formed to present a concave bearing face which concave bearing face works
against the convex face of the door jamb.
Instead of hanging the door by butt hinges the door moves on pivots, such pivots
being coincident with the centre from which the curve of the door jamb and the curve
of the inner side of the door is struck.
When closing a door so constructed and hung the cut away curved inner side of
the door is guided round in close contact with the curved fixed jamb the door
moving on its hinge pivots or pins so that no free space exists and trapping is
impossible.
prefer to mount on the back of the door a small guard or moulding which moves
a little in advance of the hinged side of the door over the fixed jamb so that should a
hand be resting on the curve of the fixed jamb when the door is being shut the
advance of the guard removes or pushes away the hand.
The hinges I at present use to support and guide the door in its inward and out-
ward movements consist of two flat plates screwed to the top and bottom of the door
respectively so as to leave projecting ends which engage pivots carried in brackets
secured to the fixed janib.
It must be understood that I do not confine myself to the method above indicated
of hinging the door as I regard the fixed curved jamb and the concentric moving
concave side of the door as the leading feature of my invention.
I might produce a curved jamb and concave side in metal or as a metallic shell if
thought desirable.
Doors constructed and hung in accordance with my invention give a greater width
of opening than those hung in the ordinary fashion by butt hinges.
Although I have described my invention particularly as a railway carriage door

page_text: the construction and arrangement is such that it can be applied to broughams, cabs,
and other vehicles.
Dated this 27th day of January 1898.
>
Improvements in and connected with the Doors of Railway
Carriages and other Vehicles.
I, JOHN EDWARD DEAN, of Baiker's Lane, Ashton-on-Mersey, in the County of
Chester, Builder, 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 and accompanying drawings:-
. My invention relates to improvements in the doors of railway carriages and other
vehicles and in the method of hanging or carrying such doors.
The invention has for its object, to so construct and hang the doors as to prevent
the trapping or crushing of a traveller's person or clothes between the fixed door
jamb and the hinged side of door.
As such doors are at present constructed and hung accidents occur very frequently
owing to carelessness or want of caution.
According to my invention I propose to so construct and hang such doors as that
it shall be impossible for any accident to take place by trapping at the hinged side of
the door.
To this end I curve the door jamb or fixed stile to which the door is hinged. In
other words the door jamb against which the inner side of the door moves, forms in
cross section a segment of a circle. The inner side of the door is correspondingly
cut away or formed to present a concave bearing face which concave bearing face
works against the convex face of the door jamb.
In order that my invention may be clearly understood I have attached hereto an
illustrative sheet of drawings to which I will throughout the following description
refer.
In the said drawings.
Fig. 1 is a general view of a railway carriage door to which my invention has been
applied.
Fig. 2 is a sectional plan view of the curved fixed jamb and the correspondingly
curved movable inner side of the door, the position of the movable side being such
as it assumes when the door is closed."
Fig. 3 is a view similar to Fig. 2 save that the inner side of the door is shown
in the position it assumes when the door is open.
Fig. 4 is a front elevation of a portion of the fixed jamb and moving stile.
Fig. 5 shows in front elevation the upper pivot or hinge for the door, as seen from
the exterior of the carriage.
Fig. 6 is a plan view of Fig. 5 on the line X X.
Fig. 7 shows the lower pivot or hinge for the door, this view being also taken from
the exterior of the carriage.
Fig. 8 is a plan view of Fig. 7 on the line Y Y.
According to my invention I form the fixed jamb a with a suitable curved face a¹,
the face of the jamb in cross section being a segment of a circle as clearly shown in
the drawings. The inner side of the door b is correspondingly cut away or formed

page_text: at bi to present a concave bearing face which works against the convex face a¹ of the
door jamb a.
Instead of hanging the door b by butt hinges I cause the same to turn on pivots,
such pivots being coincident with the centre from which the curve of the door jamb
and the curve of the inner side of the door is struck.
When closing a door so constructed and hung, the cut away curved inner side b¹ of
the door is guided round in close contact with the curved face a¹ of the fixed jamb a
(the door moving on its hinge pivots or pins) so that no free space or gap exists and
trapping is impossible.
prefer to mount or form on the back of the door b a small guard or
moulding c. This guard may move a little in advance of the hinged side of the
door, over the fixed jainb, so that should a hand be resting on the curve of the fixed
jamb when the door is being shut to the advance of the guard removes or pushes the
hand away.
To support and guide the door b in its inward and outward movements I employ
flat metallic plates which are firmly secured to the top and bottom of the door by
screws or the like as indicated in the plan views Figs. 6 and 8. These metallic
plates are arranged to extend beyond the inner side of the door b and to engage pivots e
upon which they turn. The upper plate d, is sustained between the inwardly projecting
webs of the bracket f by the pivot or pin e, the bracket f being suitably secured to
the frame work of the carriage by screws or the like. With regard to the lower plate ‹,
the extended portion is arranged to engage a pivot or pin e carried by a bracket g
suitably secured to the framework as is clearly shown in Fig. 7.
It must be understood that I do not confine myself to the method above indicated
of hinging the door as I regard the fixed curved jamb and the concentric moving
concave side of the door as the leading feature of my invention.
I might produce a curved jamb and concave side in metal or as a metallic shell if
thought desirable.
Doors constructed and hung in accordance with my invention give a greater width
of opening than those hung in the ordinary fashion by butt hinges.
Although I have described my invention particularly with relation to a railway
carriage door, the construction and arrangement is such that it can be applied to
broughams, cabs and other vehicles.
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 1
claim is
As means for preventing trapping of the person, on the closing of the door of a
railway carriage or other vehicle, forming the fixed jamb with a curved face and
correspondingly curving the inner side of the door, so that when the door moves on
its pivots the inner curved side is guided round in close proximity to the fixed jamb
and no gap exists, in the manner, and substantially as described and shown.
Beted this 00:1
1000
Dated this 001
day of October 1898.
For the Applicant,
E. K. DUTTON & Co.,
Chartered Patent Agents, 5, John Dalton Street, Manchester.