Improvements in Base Plates for Railway and like Rails
Year: 1899

page_text: Date of Application, 12th Aug., 1899-Accepted, 30th Sept., 1899
COMPLETE SPECIFICATION.
[Communicated from abroad by THE DIAMOND STATE STEEL COMPANY, a Cor-
poration of the State of Delaware, having its principal place of business
at Wilmington, in the said State of Delaware, United States of America,
Manufacturers.]
Improvements in Base Plates for Railway and like Rails,
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 the construction of rest plates for railway rails and
has for its object to improve the construction of such plates as heretofore made,
particularly in providing them with water shedding flanges adapted to keep
the water out of contact with the gripping flanges of the plate and in providing
them with angularly set gripping flanges of a peculiar form at once efficient in
holding the plate in place and of a character which can be readily and con-
veniently made.
The nature of my improvements will be best understood as described in con-
nection with the drawings in which they are illustrated and in which
Figure 1 is a cross-section through a rail and tie showing the rest plate in
position between them.
Figure 2 is a plan view of my rest plate viewed from the bottom.
Figure 3 is a cross-sectional view taken on the line 3--3 of Fig. 2, and
Figure 4 is an end sectional view of a portion of a somewhat modified form
of rest plate.
A indicates the tie, B the rail, C is the rest plate, formed, as shown, with
spike holes C¹ C¹ extending through it and with tie gripping flanges D D etc.,
the outermost flanges being distinguished by the symbol D¹. I propose to make
my rest plate out of wrought iron or steel and by the action of rolls adapted
to form at the same time the plate and flanges and preferably long bars will be
rolled into the cross-sectional form of the rest plate and then cut into sections
forming the individual rest plates. The flanges D¹ D¹ will therefore, for con-
venience of manufacture, be made parallel to each other and especially the
lines of junction, indicated at 7, between the flanges and the underside of the
plate will be parallel. For certain purposes, however, it is preferable that one
or more of the flanges should be set so as to give it a slight angle to the centre
line of the tie which substantially corresponds with the direction of the fibre
of the wood and I therefore bend some of the flanges D above their line of
junction with the plate so that they will run at an angle to instead of parallel
to each other; thus, as shown in Fig. 2. the outer flanges D' D' have their points
d curved outward at the centre and this is my preferred construction, and is
a construction, moreover, which can be readily secured in manufacture by the
simple process of bending the outer flanges outward at the centre.
In order to keep water on rainy days from coming readily into contact with
the outer flanges D¹ and finding its way into the grooves formed in the tie by
said flanges; I make my rest plate with laterally extending flanges E E extend-
гр.
077

page_text: ing beyond the outer biting flanges D¹ and formed with downwardly extending
lips E from which the water falling on the plate will drip instead of running
under the flange and finding its way into contact with the biting flange. Pre-
ferably I make the under side of these water shedding flanges E lie in a plane
somewhat above the plane of the under side of the plate proper, as is indicated,
for instance at Es, in Fig. 4, and preferably also I chamfer the upper face of
the flanges E, as indicated 'at E¹, so as to provide an inclined surface down
which the water on the plate will flow over the water shedding flange E with
its downwardly extending lip E? It will be obvious that this inclined water
shed will tend to draw the water from the adjacent level parts of the plate and
insure that most of the water falling on its surface shall leave it at its flanged
ends and not at its unflanged ends. While I prefer to chamfer the tops of the
flanges E, as above described, care should be taken not to abridge the flat bearing
surface of the plate proper which is essential to the provision of an adequate
and firm bearing for the rail and therefore I only carry the chamfers back to
lines lying above the flanges D¹ D¹.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, as communicated
to me by my foreign correspondents, I declare that what I claim is:-
.:
1. A rest plate for rails having flanges, as D D₁, for engaging the plate with
a tie and lateral water shedding flanges E with downwardly turned edges E³
extending beyond the outer flanges D₁.
"
2. A rest plate for rails having flanges, as D D¹, for engaging the plate with
a tie and lateral water shedding flanges E with downwardly turned edges E
and their lower faces E³ lying in a plane above that of the under side of the
plate proper extending beyond the outer flanges D¹.
3. A rest plate for rails having a flat upper face and flanges, as D and D¹,
extending from its lower face and water shedding flanges E extending from
the edges of the plate beyond the outer flanges D' said flanges having their top
faces El chamfered from' a line lying substantially above the said outer flanges DI
4. A rest plate for rails having a flat upper face and flanges, as D and. D¹,
extending from its lower face and water shedding flanges E extending from the
edges of the plate beyond the outer flanges D¹; said flanges having their top
faces chamfered from a line lying substantially above the said outer flanges D¹
and their outer lower edges E2 turned downward.
5. A rest plate for rails having two or more downwardly extending and down-
wardly tapering flanges D D₁ each of uniform cross-section throughout, the
lines of junction d of said flanges with the plate proper being parallel and one
or more of said flanges having its or their points or edges D¹ bent at the centre
to one side only and so that the points or edges will at each side of the centre
of the plate run at diverging angles to the lines of junction d.
6. A rest plate for rails having two or more downwardly extending and down-
wardly tapering flanges D D each of uniform cross-section throughout.. the
lines of iunction d of said flanges with the plate proper being parallel and two
of said flanges having their points or edges D¹ bent at their centre in opposite
directions and each to one side only substantially as and for the purpose specified.
7. The combination with a rail and wooden tie of a rest plate C having
flanges DD projecting into the fibre of the tie and lateral water shedding
flanges E formed with a downwardly turned outer edge E.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant."