Improvements in Railway Chairs and Rail Joints.
Year: 1896

page_text: Date of Application, 7th Mar., 1896
Complete Specification Left, 5th Dec., 1896-Accepted, 6th Mar., 1897
Improvements in Railway Chairs and Rail Joints.
HERBERT SAMUEL KNIGHT 25, Fore Street Teignmouth, Devon Monumentalist;,
do hereby declare the nature of this invention to be as follows:-
The improved chair would be made broader than those now in use, to admit of
each end of rails resting in same which would do away with present troublesome
system of iron fish plates & screw bolts and nuts to fasten joints of rails also the
ends of rails resting in this broader chair lessens the number of chairs required by-
two to each length of a single road or four to a double railroad.
The broad chairs would be only necessary where joints of rails abut, the ordinary
width chair being used as at present between the ends of rails there would also be
one wood sleeper less on every length of rail used in the broad chairs two holes.,
would be made for inserting bolts which would be driven into wedge to secure
same thus tightening rail to chair and to keep wedge from shifting by vibration.
Dated this Sixth day of March 1896.
HERBERT SAMUEL KNIGHT..
HERBERT SAMUEL KNIGHT 25, Fore Street Teignmouth Devon Monumentalist:
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:-
This invention relates to rail chairs and rail joints, its object being the con-
struction of a joint to be used where two rails meet end for end instead of the
ordinary fished joint, and an improved chair which conveniently may form a part.
of the improved joint.
In the accompanying drawings
Fig. 1 is a perspective view of the rail joint and
Fig. 2 is a perspective view of the chair.
Like letters indicate like parts throughout the drawings.
From these drawings it will be seen that the chair A (Fig. 2) is provided with
jaws A between which is a rail-seat A2, the length of the jaws and rail-seat.
being made greater than the length of the lateral extensions A³ in order to afford
ample bearing-surface for the ends of the rails B and C inserted in the chair in the
manner indicated in Fig. 1.
The chair is secured to the sleeper in the usual or other convenient manner, and
fillets or brackets A are provided in the angle between the exterior of each
jaw A and the tops of the lateral extensions A³ to strengthen the chair at these
places.

page_text: One or more keys such as D E are driven in between the rail-ends B'C' aud
chair to secure them in place.
In order that there may be no risk of accidental displacement of the keys D E,
each of them is secured in place by a bolt F; each bolt F preferably passes
through the key, the rail and both the jaws A', and it can be secured by a nut
which screws on to the end of the bolt but it may pass only through or into the key
and the contiguous jaw. By increasing the dimension i as compared with the
dimension the end of each rail B C can be given as much support in the improved
chair as would be afforded if a single ordinary chair were appropriated to each
rail-end. That one of the jaws A' which bears directly against the web of the rail
can be undercut as at A³ to receive a rail flange.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is ;-
1. In a rail-joint the combination of two rail-ends, a chair such as A and a key
or keys secured by bolts substantially as and for the purpose described.
2. The combination and arrangement of parts constituting the improved rail-
joint substantially as described and illustrated in Figure 1 of the accompanying
drawings.
3. The combination and arrangement of parts constituting the improved chair
substantially as described and illustrated in Figure 2 of the accompanying
drawings.
Dated this 3rd day of March 1897.
HERBERT SAMUEL KNIGHT.