Improved Fastening for Doors of Railway Trucks and Vans.
Year: 1889

page_text: Date of Application, 13th Aug., 1889
Complete Specification Left, 11th Mar., 1890 Accepted, 10th May, 1890)
PROVISIONAL SPECIFICATION.
Improved Fastening for Doors of Railway Trucks and Vans.
1, JAMES EUSTACE BERKLEY of Nizams Guaranteed State Railways Company
Limited of Winchester House, Old Broad Street in the City of London, Mechanical
Engineer do hereby declaro the nature of this invention to be as follows:-
My invention relates to an improved construction of fastening for the doors of
railway trucks or vans which is not liable to shake loose as is the case with such
fastenings of present construction.
For this purpose I provide on the door projecting lugs with a face inclined at an
angle inwards from the perpendicular, and on the truck or van frame I pivot hooked
catches, the books of which have inwardly inclined faces at at angle corresponding to
that of the lugs, so that when the catches close down upon the latter they hold the
door securely in the closed position, as the pull of the door against the inclined faces
of the catches when subjected to vibrations, will only tend to hold these more securely
in the closed position.
In addition to the above described advantage my improved fastening also offers the
further advantage that on closing the door, the lugs will slide along the curved nose
of the catches, causing these to close automatically over them, and thus doing away
with the necessity of closing the fastening by hand, as is required with fastenings in
present use.
Dated this 19th day of August 1889
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Fastening for Doors of Railway Trucks and Vans.
I, JAMES EUSTACE BERKLEY, of Nizam's Guaranteed State Railways Company
Limited, of Winchester House, Old Broad Street, in the City of London, Mechanical
Engineer, 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 :-
My invention relates to an improved construction of fastening for the doors of
railway trucks or vans which is not liable to shake loose as is the case with such
fastenings of present construction. For this purpose I provide on the door projecting
Jugs with a face inclined at an angle inwards from the perpendicular, and on the
truck or van frame I pivot hooked catches, the hooks of which have inwardly inclined
faces at an angle corresponding to that of the lugs, so that when the catches close
down upon the latter they hold the door securely in the closed position, as the pull
of the door against the inclined faces of the catches when subjected to vibrations, will
only tend to hold these more securely in the closed position.
In addition to the above described advantage, my improved fastening also offers the
further advantage that in closing the door, the lugs will slide along the curved nose
of the catches, causing these to close automatically over them, and thus doing away
with the necessity of closing the fastening by hand, as is required with fastenings in
present use.
My above described improved fastening is shewn on the accompanying drawings
in which
Figure 1 shews a part side elevation of a truck with my improved fastening applied
thereto.

page_text: Figure
a cross section.
The door A is provided at each end with a projecting lug B having an outer face
which is inclined inwards as shewn. To the truck frame are pivotted two catches CC
which project through slots in the frame and having firstly a face c inclined at the
same angle as the face of the lugs, so as to fit accurately against them as shewn, and
secondly a curved beak!c', so that when the door is raised, the beaks of the catches
will ride up on the lugs so that the catches will close down automatically on the latter
when the door arrives in the closed position.
It will be seen that, owing to the relative positions of the pivots of the catches
and the inclined faces of the same when closed upon the lugs there will not only be
no tendency of the catches to rise, but they will even be held more securely by any
outward pressure of the lugs.
Having now particularly described and ascertained the nature of this invon-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
An improved fastening for railway trucks and vans consisting of the combination
of a projecting lug such as B on the door having an inwardly inclined outer face, and
a catch such as (pivotted to the framing, and having a hook face e inclined at the
same angle as the face of the lug, and a curved beak c for sliding up over the lug,
substantially as described with reference to the drawing.
Dated this 10th day of March 1890.
ABEL & IMRAY,
Agents for the Applicant.