Improvements in Tongue Rails for Railway Switches.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Tongue Rails for Railway Switches.
We, EDWARD PRITCHARD MARTIN, of Dowlais Iron Works, Dowlais, in the
County of Glamorgan, Iron Master, and RICHARD PRICE-WILLIAMS, of 32, Victoria
Street, Westminster, in the County of Middlesex, Civil Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to flat footed rails and its object is to reduce the de-
formation of the rail and the displacement of the metal to a minimum.
As described in the Specification of our former Patent No. 22624 of 1895 the
area of cross section of the rail is substantially constant throughout the greater
part of its length.
According to this invention the relative positions of the inner face of the
head, the outer face of the web and the outer side of the foot also remain unaltered
throughout the entire length of the rail, metal being only displaced from the
outer side of the head and the inner side of the foot to the inner side of the
web. The displacement from the foot extends throughout the whole length but
from the head through a portion only.
Dated this 29th day of March 1899
EDW. P. MARTIN.
R. PRICE-WILLIAMS.
Improvements in Tongue Rails for Railway Switches.
We, EDWARD PRITCHARD MARTIN, of Dowlais Iron Works, Dowlais, in the
County of Glamorgan, Iron Master, and RICHARD PRICE-WILLIAMS, of 32, Victoria
Street, Westminster, in the County of Middlesex, Civil 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:
This invention relates to flat footed rails and its object is to reduce the de-
formation of the rail and the displacement of the metal to a minimum.
As described in the Specification of our former Patent No. 22624 of 1895 the
area of cross section of the rail is substantially constant throughout the greater
part of its length.
According to this invention the relative positions of the inner face of the
head, the outer face of the web and the outer side of the foot also remain unaltered
throughout the entire length of the rail, metal being only displaced from the

page_text: outer side of the head and the inner side of the foot to the inner side of the
web. The displacement from the foot extends throughout the whole length but
from the head through a portion only.
In the accompanying drawings, Figure 1 is a plan, and Figures 2 to 13 are
sections on the lines 2,2 to 13, 13 of Figure 1.
a is the stock or fixed rail, and the tongue-rail. It will be seen that in all
the cross sections, Figures 2 to 13, the positions of the inner face c of the head
of the tongue-rail, the outer face d of its web, and the outer side e of its foot
are the same, (in Figure 13 the face has disappeared without altering its position,)
while metal has been displaced from the outer side f of the head and the inner
side 9
of the foot to the inner side of the web, the former displacement being
along part only of the length of the rail and the latter throughout the whole
length of the rail. It will also be observed that such metal as is displaced from
the foot is forced to the inner side of the web and not to the outer side of the
foot, as in our former patent.
By our improvements we adapt our former invention to flat footed rails and
also reduce the deformation of the rail and the displacement of the metal to a
minimum.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:
1. A flat footed tongue rail for railway switches of substantially the same
sectional area throughout the greater part of its length, the relative positions
of the inner face of the head, the outer face of the web, and the outer side of
the foot being the same throughout the entire length of the rail, such metal
as is displaced from the foot being displaced from the inner side thereof, only,
and forced to the inner side of the web.
2. A flat footed tongue rail for railway switches of substantially the same
sectional area throughout the greater part of its length, the relative positions
of the inner face of the head, the outer face of the web, and the outer side of
the foot being the same throughout the entire length of the rail, metal
being displaced from the outer side of the head through part only of the length
of the rail and from the inner side of the foot throughout the whole length to
the inner side of the web..
3. Tongue rails for railway switches, substantially as described and illus-
trated in the drawings.
D
1000
R. PRICE-WILLIAMS,
EDW. P. MARTIN.