Rail-Joint Fastening. Page: 2 of 3
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UNITED STATES PATENT OFFICE.
MICHAEL BETKA, OF DAYTON, TEXAS.
SPECIFICATION forming part of Letters Patent No. 623,508, dated April 25,1899.
Application filed January 19, 1899. Serial No, 702,682. (No model)
To all whom 7t mtay concern
Be it known that I, MICHAEL BETKA, a sub-
ject of the Czar of Russia, residing at Dayton,
in the county of Liberty and State of Texas,
5 have invented a new and useful Rail-Joint
Fastening, of which the following is a speci-
The invention relates to improvements in
io The object of the present invention is to
improve the construction of rail-joint fas-
tenings and to provide a simple, inexpensive,
and efficient device adapted to dispense with
nuts and nut-locks and capable of locking
15 an entire series of transverse fastening de-
vices in engagement with the fish-plates and
A further object of the invention is to pro-
vide a locking device of this character adapt-
20 ed to yield readily to the expansion and con-
traction of the rails and the vibration thereof
without sustaining any injury or affecting
the security of the fastening devices.
The invention consists in the construction
25 and novel combination and arrangement of
parts, as hereinafter fully described, illus-
trated in the accompanying drawings, and
pointed out in the claims hereto appended
In the drawings, Figure 1 is a perspective
30 view of a rail-joint provided with a fastening
device constructed in accordance with this
invention. Fig 2 is a horizontal sectional
view. Fig. 3 is a transverse sectional view.
Fig. 4 is a detail perspective view of one of
35 the bolts. Fig 5 is a detail perspective view
of one of the sections of the locking-plate.
Like numerals of reference designate corre-
sponding parts in all the figures of the draw-
40 1 1 designate a pair of rails having their
meeting ends connected by fish-plates 2 and
transverse bolts 3, which pass through the
fish-plates and the webs of the rails, and the
said fish-plates are composed of angle upper
45 portions and horizontal flanges 4, which ex-
tend beneath the rails, as clearly illustrated
in Fig. 3 of the accompanying drawings.
The fish - plates firmly embrace the bottom
flanges of the rails, and the latter are as strong
5o at the joints as at any other portion. In or-
der to permit the rails to have a limited lon-
gitudinal movement, so that they may expand
and contract under the influence of heat and
cold, the bolts are provided at points between
their ends with recesses 5, which reduce the 55
diameter of the bolts at that point. The
bolts are provided at one side of the rails with
heads, and their other ends, which project
from the opposite side of the rail-joint, are
provided with upper and lower notches 0 and 6o
are engaged by sections 7 of a locking-plate
which extends longitudinally of the rails and
fits within the recess formed by the head of
the rail and the adjacent fish-plate. Each
section 7 of the locking-plate is provided 65
with keyhole-slots S, having their enlarged
portions disposed toward the inner ends of
the sections and of a size to permit the pas-
sage of the ends of the bolts The sections
of the locking-plate are moved outward lon- 70
gitudinally to carry the narrow portions of
the keyhole-slots into engagement with the
notches of the bolts, which are firmly clamped
by wedge-shaped flanges or ribs 9, formed in-
tegral with the sections 7 and located at op- 75
posite sides of the keyhole-slots, as clearly
illustrated in Fig 5 of the accompanying
The sections of the locking-plate are held
separated and maintained in engagement 8o
with the bolts by a tension device 10, consist-
ing of a coiled spring 11 and a pair of tele-
scoping tubular sections 12 of a cylindrical
casing, which forms a housing for the coiled
spring to support the same and protect it 85
from the weather and at the same time to pre-
vent it from becoming clogged by sand, cin-
ders, and other accumulation. The outer
ends of the tubular sections of the casing are
provided with flanges 13, having perforations 90
which are engaged by hooks 14 of the adja-
cent ends of the sections 7 of the clamping-
plate. The hooks of the sections 7 are hooked
into the perforated flanges, and the spring,
which is firmly supported by the telescoping 95
casing, is contracted or compressed as the sec-
tions 7 are applied to the bolts and is adapt-
ed to expand and hold the clamping-plate se-
curely in engagement with the bolts.
The invention has the following advan- m oo
tages - The fastening device for rail-joints,
while being simple and comparatively inex-
pensive in construction, is positive and reli-
able in operation and is capable of securely
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Betka, Michael. Rail-Joint Fastening., patent, April 25, 1899; [Washington D.C.]. (texashistory.unt.edu/ark:/67531/metapth514583/m1/2/: accessed October 22, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.