Improvement in Rail Joints.
Year: 1889

page_text: Date of Application, 30th Apr., 1889
Complete Specification Left, 28th Jan., 1890-Accepted, 1st Mar., 1890
. PROVISIONAL SPECIFICATION.
Improvement in Rail Joints.
I, EDWIN MAYNARD COOKE, of 12 Barclay Street, Brooklyn, Kings County, New
York State, United States of America, Inventor do hereby declare the nature of this
invention to be as follows:-
:-
My Invention relates to a joint for railway rails, consisting of a metal shoe which
receives the ends of the rails and is held in position by wedges which are driven in
between the shoe and the base of the rail.
According to this invention, the shoe comprises a base plate on which the rail rests,
arched portions which extend over the base of the rail, and longitudinal pieces which
are bolted to the web of the rail but which do not rise up sufficiently high to be in
contact with the rail head in order that the pressure may be wholly borne by the base-
plate.
The wedge is made in two portions. These are driven in between the under surface
of the arch of the shoe and the upper surface of the base of the rail, and they are
prevented from becoming detached by bending the end of one of them down in front
of the other. The arches of the shoe may be parallel or they may be tapered, and
the wedges may be of crown shape or arched in cross-section so as to make them
sufficiently elastic to be capable of spreading in a transverse direction.
ow May
E. M. COOKE.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
Improvement in Rail Joints.
' I, EDWIN MAYNARD COOKE of 12, Barclay Street, Brooklyn, Kings County, New.
York State, United States of America, Inventor, 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 :-
M
This Invention is an improvement in that class of rail joints in which the ends of
the rails are received in a shoe and wedges are driven between said shoe and the base
of the rails.
The Invention will be described with reference to the accompanying drawings,
wherein figure 1 is a side view, figure 2 a perspective view, figure 3 a longitudinal
section, and figure 4 a cross-section, of my improved joint. Figure 5 is a perspective
view of the wedge, and figures 6 and 7 are respectively side and cross-sectional views
of a somewhat different construction to that shewn in the other figures.
The shoe A is preferably made by rolling a plate of metal, of equal thickness, to
the desired shape.
The shoe comprises the base plate A³, the arched portions A³ forming the walls of
the wedge recesses, and the fish plates A, such plates A fitting against the opposite
sides of the webs of the meeting rails B and having bolt holes, as shown. It will be
seen that the plates A do not, in the construction shewn on figures 1 and 2, extend
пр and bear under the treads of the rail so that the pressure on such rails is borne
wholly upon the base A¹ of the shoe. In figures 1 and 2 the under surface of the
arched portion A³ is equally distant from the base of the rail B. The wedge D is
in two portions d d', the former d constituting a base bearing and the latter d³ the
driving section, the upper face of section d and the lower face of section d¹ being
taper and the opposite sides of such sections being parallel so that the section d will
Price 611

page_text: rest flat against the top of the rail base and the section d' will rest flat against the
under face of the arched portion A' so that as the portion d' is moved longitudinally
on d within the space between the rail base and arch A³ the parts are wedged in place.
It will be understood that the portions a' are driven in reverse directions on opposite
sides of the rails. After d¹ has been properly driven it is secured to prevent it from
moving back. This is preferably done by Lending the end of d¹ down, as at d' in
figure 3; In figures 6 and 7, the arched portions. A are of wedge form, to provide
the desired tapering formation of the récesses for the wedges, and the wedges or keys
are made crown-shaped or arched in cross-section and have sufficient clasticity or
spring to permit them to spread transversely. This lateral or transverse spreading, of
the wedge is effective and desirable for the reason that it operates to secure the wedge
or keys without giving to such parts any tendency to longitudinal movement and
consequent loosening or displacement thereof. I, however, prefer the construction
shewn in figures 1 to 5 inclusive. By constructing the arched portions to form the
recesses for the wedges, the latter are secured without any weakening of the shoe as
the arched portions are of equal thickness throughout.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what, I
claim is ;
1st. In a rail joint, a shoo arched substantially as described to form the recesses for
the fastening keys or wedges, substantially as set forth.
2nd. In a rail joint, the combination, with the rails, of the shoe fitted thereon and
formed with arches providing recesses above the bases of said rails and the wedges or
keys driven in said recesses, substantially as set forth.
3rd. In a rail joint, the combination, with the rails and, the shoe embracing the
same, ways or recesses being provided between the upper sides of the base of the rail
and the shoe, of the wedges fitting said ways or recesses and formed of two
portions d d', having each a straight and an inclined face, the one portion d being
inserted in the way and the other d being driven up on the portion d and secured
substantially as set forth.
4th. The improved rail joint, consisting of the shoe having a base plate and pro-
vided with arches A³, having their undersides or faces formed on horizontal lines,
whereby, when in use, such surfaces will be on lines parallel with the tops of the
rail base, and the wedges formed in sections and adapted to bear between said arches
and the rail base, substantially as set forth.
5th. The improvement in rail joints, substantially as herein described, consisting of
the rails, the shoe A fitted thereto and formed with arches A³, having their under-
sides formed in lines parallel with the tops of the rails, and the wedges formed in
sections dd', the sections d being inserted in the ways between the arches A³ and the
rail base, and the sections d¹ being driven up on the sections d until their points pass
the bases of sections d, all substantially as and for the purposes specified.
Dated this 28th day of January 1890
Dated this 28th day of
January 1890
anuary
E. M. COOKE.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.