Improvements in Fastenings for the Permanent Way of Railways and the like.
Year: 1885

page_text: Improvements in Fastenings for the Permanent Way of
Railways and the like.
I HUBERT BANKART of 8 Pinner's Hall Great Winchester Street in the city'
of London, Engineer do hereby declare the nature of my said invention for
IMPROVEMENTS IN FASTENINGS FOR THE PERMANENT WAY OF RAILWAYS AND THE
LIKE to be as follows:-
This invention is a simple method of fastening the rails into the metallic sleepers
without the use of a chair. .
I prefer to use a sleeper of channel or H section though I do not bind myself to
such shape and through the flanges I provide in any suitable manner an opening to
receive the rail. The opening is under cut or recessed so as to receive the flange or
head of the rail on one side and the key on the other.
The key is preferably made of metal and about the same length as the ordinary
fish plates which I dispense with.
The form of the key will of course vary with the circumstances of its employ-
ment...

page_text: Improvements in Fastenings for the Permanent Way of
Railways and the like.
I HUBERT BANKART of 8 Pinners Hall Great Winchester Street in the City of
London, Engineer, do hereby declare the nature of my 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 is a simple method of fastening the rails into the metallic sleepers
without the use of a chair.
prefer to use a sleeper of channel or H section though I do not bind myself to
such shape and through the flanges I provide in any suitable manner an opening to
receive the rail-The opening is undercut or recessed so as to receive the flange or
head of the rail on one side and the key on the other.
The key is preferably made of metal and about the same length as the ordinary
fish-plates which I dispense with.
.
The form of the key will of course vary with the circumstances of its employ-
ment.
ว
In the accompanying drawings Figure 1 is a longitudinal section of a portion of
the sleeper showing the rail and key in cross section; Figure 2 is a plan of one
end of the sleeper with rails and key in position; Figure 3 is a cross section
through the sleeper showing a portion of rails and the key in elevation.
A is the central web or plate of the sleeper and B the two flanges through the
upper portions B₁ of which the openings for the rails and keys are made as shown
in Figure 1. The form of sleeper preferred is that known as H section and shown
in the drawings.
- C is the rail and D the key the latter being preferably carried up at D¹ in the
form of a shoulder to abut against and support the head of the rail while at D³ the
body of the key beds firmly against the flange B¹ of the sleeper as shown in
Figure 1. The shape of the key and of the openings in the flange B¹ depend
upon the kind of rail used; in the drawings a flanged rail is shown but should a
double headed rail be used both openings and key, would have to be altered
to suit.
The rib or projection D³ extends the whole length of the key and enters a recess
in the flange B¹ as is clearly shown in Figure 1; it serves to prevent the key from
lifting and is also useful as a means of locking the key so that it cannot return
when once driven in and fixed unless it is intentionally driven out. The key D is
wedge-shaped the larger end being at D Figure 2 and the rib D³ is separated in
any convenient manner-by a saw-cut for instance-from the body of the key for
a short distance at the smaller end. This separated portion of the rib is after the
key is in place, turned outwards as shown at D* Figure 2 and it is evident that it
thus becomes impossible for the key to work out by vibration or shrinkage. If
desired the portion D³ may be turned over till it assumes a position at right angles
to the axis of the key and lies flat against the sleeper.
The key may of course be placed either on the inner or outer side of the rail or
on both at once.

page_text: The use of the rib D³ without undercutting the recess in B¹ can be adopted if
desired but the dovetailing the key as at De Figure 1 is preferred as an additional
safeguard against the key lifting.
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
1. In a fastening for rails the combination with a metal sleeper having raised
flanges such as B' of a key such as D bearing against the flange B¹ and having a
shoulder such as D¹ to support the head of the rail substantially as specified.
2. In a key such as described the combination with the shoulder D¹ which
supports the head of the rail and body D' which bears against the sleeper flange B¹
of a rib D³ which prevents the key from rising out of its place substantially as
specified.
3. In a key such as described the combination with the shoulder D¹ which
supports the head of the rail and body D2 which bears against the sleeper flange B'
of a rib D³ and dovetail De which prevent the key from rising out of its place
substantially as specified.
4. The method of preventing the return of a rail key which consists in turning
back a portion thereof substantially as specified.