Improvements in Railway Joint-chairs.
Year: 1890

page_text: Date of Application, 20th ept., 1890
Complete Specification Left, 21s. May, 1891--Accepted, 4th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in Railway Joint-chairs.
I, CASTLE SMITH, of 54 Fleet Street, in the City and County of London,
Gentleman, do hereby declare the nature of this invention, as communicated to me
from abroad, by Tom Sayers, of "Temple Bar" Hotel, Rampart Row, Fort,
Bombay, in the Empire of India, Hotel Proprietor, to be as follows:-
The object of this invention is to provide a cheap and simple form of railway
joint-chair, by the use of which a section of the rail of the permanent way can be
easily and quickly renewed when necessary.
According to this invention the joint-chair is made with a longitudinal groove
extending from end to end, the said groove being shaped to correspond with the
cross section of the web and foot of the rail with which it is to be used. The
joint-chair is provided with a flange on each side which is bolted or otherwise
secured to the sleeper in the ordinary manner. The abutting ends of the two rails
are passed endways into the joint-chair, and are secured by means of a wedge or
key.
To renew a section of the line, the joint-chair at each end of the worn rail is
unscrewed and slid along the adjoining rails; the worn rail may now be lifted out
of position, the new rail laid down, and the joint-chair at each end slid into place,
and tightened by the keys in the ordinary manner.
Dated this 20th day of September 1890.
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, London, E.C.
COMPLETE SPECIFICATION.
Improvements in Railway Joint-chairs.
I, CASTLE SMITH, of 54 Fleet Street, in the City and County of London,
Gentleman, do hereby declare the nature of this invention and in what manner
the same is to be performed, as communicated to me from abroad by Tom Sayers,
of "Temple Bar "Hotel, Rampart Row, Fort, Bombay, in the Empire of India,
Hotel Proprietor, to be particularly described and ascertained in and by the
following statement
The object of this invention is to provide a cheap and simple form of railway
joint-chair, by the use of which a section of the rail of the permanent way can be
easily and quickly renewed when necessary.
According to this invention the joint-chair is made with a longitudinal groove
extending from end to end, the said groove being shaped to correspond with the
cross section of the web and foot of the rail with which it is to be used.
The joint-chair is provided with a flange on each side which is bolted or other-
wise secured to the sleeper in the ordinary manner. The abutting ends of the two
rails are passed end ways into the joint-chair, and are secured by means of a wedge
or key.
To renew a section of the line, the joint-chair at each end of the worn rail is
unscrewed and slid along the adjoining rails; the worn rail may now be lifted out
of position, the new rail laid down, and the joint-chair at each end slid into place,
and tightened by the keys in the ordinary manner.
And in order that this invention may be well understood and carried into
practice, it will now be described with the aid of the accompanying drawings in
which similar letters of reference indicate the same or corresponding parts.

page_text: Figure 1 is a side elevation, and Figure 2 a plan of part of the permanent way
of a railway provided with joint-chairs in accordance with this invention;
Figure 3 is a section on the line X X Figure 1;
Figure 4 is a section on the line Y Z Figure 2;
Figure 5 shews an end elevation and plan of one of the improved joint-chairs, and
Figure 6 is a side elevation of part of a railway permanent way shewing the
method adopted for renewing a worn or other rail.
In Figures 1 to 5 of the drawings A represents an improved railway joint-chair
and B the longitudinal groove or channel in the same; the shape or configuration
of the groove or channel B is clearly shewn in Figures 3 and 5, and as before
stated corresponds with the cross sections of the web and feet of the rails with
which it is to be used. CC are the rails and D D the wedges or keys. The
joint-chair is secured by the flanges G to the sleeper F by means of a suitable
number of bolts, spikes, or their equivalents E, and the rails C C are slid endways
into the longitudinal groove or channel B and tightened up by the wedges or keys D
in the ordinary manner.
In Figures 1 and 2 is shewn a block chair A' for use only at the ends of the
permanent way. It is provided with a groove or channel extending about half way
in or thereabouts into which is passed the extremity of the end rail which is
tightened up with one wedge or key D². A semi-circular or other shaped flange G³
is formed on the block chair by means of which it is bolted or otherwise secured to
the end sleeper F².
In Figure 6 is shewn the method adopted for removing a rail and substituting
another. It is assumed that the rail C³ requires to be removed for some cause or
another. The bolts, spikes, or their equivalents are unscrewed or otherwise
detached from the sleepers F and each joint-chair A is slid end ways on to the con-
tiguous rail. This position is shewn in Figure 6. The rail C³ may now be lifted
up and a new rail substituted and the joint-chairs A slid back into their places and
secured to the sleepers.
It will be understood that ordinary chairs may be used intermediate between the
joints.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed, as communicated to me
from abroad, I declare that what I claim is :-
:-
A railway joint-chair formed or provided with a longitudinal groove or channel
corresponding to the cross section of the feet and webs of the rails with which it is
used, and having flanges or their equivalents to be secured to a sleeper at the
joints, substantially as hereinbefore described and illustrated and for the purpose
stated.
Dated this 20th day of Mo 1901
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CASTLE SMITH,
Invention" Office, 54, Fleet Street, London, E.C.
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, London, E.C.