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Патент USA US2136961

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Nov. ‘15, 1938.
Filed Nov. 1, 1937
2 Sheets-Sheet l
@5727? 729a‘Zdaaz'ra
Patented Nov. 15, 1938
John T. Baldwin, Chattanooga, Tenn.
Application November 1, 1937, Serial No. 172,271
1 Claim. (01. 238-—242)
My invention relates to rail joints and more stood, for the purpose of description, that the
particularly to rail joints of the expansible type. reference numerals indicative of. parts of sec
One of the principal objects of my invention
is to providea rail wherein the rail sections
5 are capable of expansion and contraction and
at the same‘ time prevented from lateral as well
as vertical dislodgement relative to each other.
Another object of. my invention is to provide
a rail joint of the above described character
10 formed in a manner to effect a positive look
ing of the rail sections together and which is
capable of ready assembly and disassembly of
the sections.
Other objects and advantages will be appar
ent from the following description, appended
claim and annexed drawings.
5, ?ange ii and web 1. The web is formed with
an enlarged portion 8 extending longitudinally
beyond the outer end of said section for en
gagement with section B and terminates in a
vertically extending outer end face 9.
The head 5, at a point substantially inter
mediate of the inner end of the portion 8 and
outer end of the section A, is segmented to
form an inner vertical wall extending through
said head and having a right angularly disposed 15
shoulder Hi located substantially intermediate of
Referring to the drawings wherein like ref
erence characters designate like parts through
the length of. said wall forming parallel ex
tending walls II and I2 respectively. The wall
out the several views:
Fig. 1 is a perspective view of my invention.
Figs. 2 and 3 are perspective views of the
[3 effecting jointure with a vertically extending 20
interlocking rail end sections in disassembled
tion A are set forth with the exponents “a”
as indicative of like parts of section B.
Section A is fashioned with the usual head
Fig. 4 is a top plan view of my invention.
Fig. 5 is a‘ horizontal section.
Fig. dis a transverse section taken on the
line 6—6 of Figure 4.
Fig. 7 is a top plan view illustrating one of
the initial positions in'disassembling the sec
30 tions.
Fig. 8 is a top plan view illustrating another
step in disassembling the sections.
Fig. 9 is a sectional view taken on the line
I l terminates rearwardly in a transverse wall
and outwardly inclined wall I4 forming a cunei
form section 15 on the head 5. The outer end
of the head 5 adjacent the portion 8 is fash
ioned with a vertical and inwardly extending
wall forming a cuneiform section IS on the end 25
of said head. The flange 6 between the wall'
[3 and shoulder ID is segmented to form rear
and front ?ange sections l1 and I8 respec
tively. The lateral face of the web ‘I oppo
sitely disposed from the face formed with the 30
portion 8, and between the wall l3, shoulder l0,
?ange sections l1 and IB, is formed with a ver
tical and longitudinally extending wall IS. The
9—9 of Figure '7.
upper end of. said wall I9 is fashioned with a
Fig. 10 is a sectional view taken on the line
Iii-l0 of Figure 8.
Fig. 11 is a transverse section illustrating one
right angularly disposed face aligned with the 35
ofthe ?nal steps in disassembling the sections.
Fig. 12 is a similar view to Figure 11 illus
40 trating the ?nal step‘ in disassembling the sec
tions and the initial step in assembling the
larly disposed in relation to the vertical face
of the Wall II. The outer end of the wall l9,
subjacent the wall I2, is fashioned with a slot 40
for permitting the section I5a to be inserted
therethrough for locking engagement with sec
tion IS. The upwardly and outwardly extend
Fig. 13 is a fragmentary elevation of the rail
Fig. 14 is a fragmentary bottom plan view of
the rail chair.
'In practicing my invention I provide, as illus
trated in the drawings, connected rail end sec
tions A and B of rails and which are fashioned
50 in a manner to form my novel joint hereinafter
described. Inasmuch as the sections A and B
are of a substantially identical construction,
whereby the same are adapted for interlocking
engagement With each other, a detailed descrip
55 tion of section A will suf?ce, it being under
under faces of the cuneiform sections l5 and
I6 and thereby forms a shoulder 20 right angu
ing face of the wall I9 forms front and rear up
wardly extending transverse shoulders 2| and 45
22 respectively.
The web 1 and enlarged portion 8 are formed
with transverse apertures 23 for the reception
of suitable bolts 24 for clamping the sections
A and B together.
The apertures 23 are elon
gated on one section in a manner to register
with cylindrical apertures in the opposite sec
tion whereby to permit contraction or expan
sion of the sections relative to each other and
the enlarged portions 8 are countersunk about 55
the cylindrical shaped apertures and receive the
heads of the bolts secured therethrough to pre
vent relative movement between the bolts and
The sections A and B, being in the disassem
bled position shown in Figure 2, are assembled
in the following manner: the section A is canted
slightly below the section B to position the wall
I! against the wall 19a below the shoulder 29a
and the front ?ange section l8 between the
front and rear ?ange sections “3a and Ila re
spectively, as clearly illustrated in Figure 12.
From this position, section A is moved upwardly
positioning the walls H and [2 adjacent the
faces Ma and Ila respectively, the shoulders
l0 and Illa in abutting engagement, the cunei
form section I6 passing between the cuneiform
section H11 and wall I la and over the shoulder
20a, and the cuneiform section l5 passing be
20 tween the cuneiform section Mia and the web
portion Ba as illustrated in Figure 11.
From the last described position, the ?ange
end of the section A is moved inwardly to as
sume a parallel horizontal position with the
?ange end of section B as illustrated in Figure
‘ 10.
From this position, the sections are moved
transversely whereby the faces II and I2 abut
the faces I20, and Ila respectively, as illustrated
in Figures '7 and 9, and in which the shoulders
I0 and Illa are in abutting engagement.
From this last described position, the sections
A and B are moved longitudinally relative to
each other to effect a spacing between the shoul
ders l0 and I 0a, wall i3 and end of cuneiform
section Ilia, and end of cuneiform section I6
In this position the bolts 24 are
passed, through the apertures 23 and nuts 25
threaded on said bolts to bind the parts together.
and wall 13a.
, From the foregoing it will be apparent that
by spacing the cuneiform sections apart thereby
moving the shoulders I 0 and 10a, (as illus
trated in Figure 4) contraction or expansion
of the sections is compensated for. It is to be
noted that the enlarged portions 8 and 8a, of
the respective webs extend beyond the outer
' ends of the sections and seat between the head
and ?ange of the adjacent section, thereby re
enforcing the structure.
Obviously, while the joint permits relative 1on
{gitudinal movement of the rail sections for the
purpose of contraction or expansion, lateral or
vertical movement between the sections is pre
vented due to the interlocking of the ?ange sec
tions, horizontally extending shoulders, cunei
form sections and the extending portions 8
and 8a.
For the purpose of securing the rails to the
usual cross ties, I employ a rail chair having
coacting sections 30 and 3| extending longitu
dinally of the rail sections A and B and formed 10
with upwardly extending arms 32 and 33 formed
with channels to embrace the ?anges 6 and Ba
of the rails as clearly illustrated in Figure 6.
Subjacent the bottom and intermediate of the
length thereof, the sections 30 and 3| are formed
with recessed lugs through which is secured a
bolt and nut 34 for clamping the sections to
gether about the ?anges 6 and 6a. Adjacent
the outer ends, the chair sections 30 and 3!
are formed with slots 35 for receiving the shanks 20
of rail spikes whereby the chair is secured to
the cross ties.
What I claim is:
A rail joint of the class described, comprising,
a pair of identical abutting rail sections formed
with head, web and ?ange sections respectively,
each of said head sections fashioned with an
inner and outer cuneiform section, said inner
cuneiform section spaced inwardly from the rail
end face, each of said cuneiform sections hav
ing a vertical longitudinally inclined abutting
surface, said abutting surfaces being parallel,
said outer cuneiform section terminating in an
end face ?ush with the rail end face and the
inner and outer cuneiform sections of one rail 35
section laterally engaging the outer and inner
cuneiform sections respectively of the abutting
rail section, each of said web sections being
partially cut away and fashioned with a hori
zontal shoulder abutting the lower face of the 40
cuneiform section of the abutting rail seciion,
each of said ?ange sections being cut away ad
jacent the end thereof to accommodate the end
of the ?ange section of the abutting rail sec
tion, said cuneiform sections coacting with each
other, said shoulders and said cut away ?ange
sections to prevent relative vertical movement
and permit longitudinal movement of. said rail
sections relative to each other.
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