Securing the Doors of Railway Carriages.
Year: 1887

page_text: Date of Application, 23rd Aug., 1887
Complete Left, 25th June, 1888
Complete Accepted, 27th July, 1888
Securing the Doors of Railway Carriages.
We, FREDERICK GEORGE GRIFFIN LINES of 59 Devonport Road, Uxbridge Road in
the County of Middlesex Commercial Traveller and JOHN KENDALL of School Cottage,
Clements Road, Notting Hill, in the County of Middlesex, Engineer, do hereby
declare the nature of our said invention to be as follows:-
:―
The object of our invention is to fit appliances to the doors of railway passenger
trains, whereby all the doors of the train may be simultaneously locked by the Guard,
and so retained while in motion; and, upon its arrival and stoppage at a station, the
whole of the doors may be simultaneously released in like manner.
We fit a longitudinal shaft just above the doors on each side of the carriage
with suitable bearings for supporting the same, and in which bearings it can rotate
freely. Each end of the shaft is formed so that the corresponding shaft of the next
carriage may be readily coupled, and, when a train is made up, the respective shafts
on each side are coupled from end to end and so connected with the Guard's compart-
ment that, by means of worm and worm-wheel, or bevel or other gear, the whole line
of shafting on either side may be rotated, or partially rotated, as required.
We fit a bolt to each door in a suitable position to be operated upon by an eccentric
or equivalent appliance fitted to the shaft, so that the partial rotation of the shaft in
one direction will draw the bolt and release the door, and the partial rotation of the
shaft in the opposite direction secures the door.
If one or more of the doors happens to be left open after the train has started, and
after the Guard has let go the bolts, such doors, on being closed, will become locked
like the rest; this operation being effected by inclined surfaces upon the bolts, or other
well-known devices.
Springs or weights are fitted either to the bolts or the shafts in such a manner that,
when a carriage is detached from a train, the whole of the bolts of such carriage are
withdrawn from the doors, which are then left to the security of the ordinary.
fastenings only.

page_text: The coupling mechanism consists of sleeves fitted to the shafts, having trumpet, or
conical ends, projected outwards by suitable springs, and so arranged that the springs
of one set of sleeves are under compression, while those of the other set are free, the
square ends of the shafts entering square sockets, and the conical ends of the sleeves
meeting together at the ends of the carriages. The springs compensate for variations
of length when rounding curves.
The bolts or fastenings hereinbefore described are supplemental and in addition to
the ordinary fastenings.
In adapting our invention to the exigencies of ordinary railway rolling stock
various modifications of the foregoing arrangements will be required, and flexible
shafting or its equivalent may be fitted to adapt it to carriages of different heights.
בד
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1007

page_text: жина аци аррrances or
Securing the Doors of Railway Carriages.
We FREDERICK GEORGE GRIFFIN LINES, of 59 Devonport Road, Uxbridge Road,
in the County of Middlesex, Commercial Traveller, and JOHN KENDALL of School
Cottage, Clements Road, Notting Hill, in the County of Middlesex, Engineer, do
hereby declare the nature of our said invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the following
statement :-
The object of our invention is to fit appliances to the doors of railway passenger
trains, whereby all the doors of the train may be simultaneously locked by the Guard,
and so retained while in motion; and, upon its arrival and stoppage at a station, the
whole of the doors may be simultaneously released in like manner.
We fit a longitudinal shaft just above the doors on each side of the carriage, with
suitable bearings for supporting the same, and in which bearings it can rotate freely.
Each end of the shaft is formed so that the corresponding shaft of the next carriage
may be readily coupled, and when a train is made up, the respective shafts on each
side are coupled from end to end, and so connected with the Guards compartment
that, by means of worm and worm-wheel, or bevel or other gear, the whole line of
shafting on either side may be rotated, or partially rotated, as required.
We fit a bolt to each door in a suitable position to be operated upon by an eccentric
or equivalent appliance fitted to the shaft, so that the partial rotation of the shaft in
one direction will draw the bolt and release the door, and the partial rotation of the
shaft in the opposite direction secures the door.
If one or more of the doors happen to be left open after the train has started, and
after the Guard has let go the bolts, such doors on being closed, will become locked
like the rest; this operation being effected by inclined surfaces upon the bolts, or other
well known devices.
In some cases we fit springs or weights either to the bolts or the shafts in such a
manner that, when a carriage is, detached from a train, the whole of the bolts of
carriage are withdrawn from the doors, which are then left to the security of the
ordinary fastenings only.
The coupling mechanism of the sleeves fitted to the shafts, having trumpet or conical
ends, projected outwards by suitable springs, and so arranged that the springs of one
set of sleeves are under compression, while those of the other set are free; the square
ends of the shafts entering square sockets and the conical ends of the sleeves meeting
ogether at the ends of the carriages. The springs compensate for variations of length
when rounding curves.
The bolts or fastenings herein before described are supplemental and in addition to
be ordinary fastenings.
In adapting our invention to the exigencies of ordinary railway rolling stock various
nodification of the foregoing arrangements will be required, and flexible shafting or
ts equivalent may be fitted to adapt it to carriages of different heights.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
1. In the construction of additional safety railway carriage door fastenings, the
combination of a series of rotative longitudinal flexible or rigid shafts, or flexible or
rigid shafts, fitted in bearings the ends of the shafts being so fitted as to be coupled
when the train is made up, and the whole series being so connected to and communi-
cating with the Guards compartiment as to be capable of being readily manipulated,
substantially as hereinbefore described.
2. In combination with apparatus as aforesaid, the application and use of a separate
bolt or fastening to each door, capable of being lifted or otherwise unfastened by the
aforesaid mechanism so as to release the door, substantially as herein before described.
3. The general arrangement and combination of mechanism constituting our
improvements in the method of, and in means and appliances for. securing the doors of
railway carriages, substantially as herein before described.
GEO. DOWNING,
Agent for Applicants.