Antispreading Device for Railway-Tracks. Page: 2 of 3
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UNITED STATESPATENT OFFICE.
JOHN T. STOVALL, OF SHAMROCK, TEXAS.
ANTISPREADING DEVICE FOR RAILWAY-TRACKS.1,299,807..
Specification of Letters patent.
Patented Apr. 8, 1919.
Application filed December 21, 1918. Serial No. 267,840.
To all whom it may concern:
Be it known that I, JoHN T. STOVALL,
a citizen of the United States, residing at
Shamrock, in the county of Wheeler and
5 State of Texas, have invented certain new
and useful Improvements in Antispread-
ing Devices for Railway-Tracks, of which
the following is a specification, reference be-
ing had to the accompanying drawings.
10 This invention relates to railroad track,
and particularly to means for preventing
the rails of a track from spreading.
The general object of the invention is to
provide a very simple device which may be
15 used to connect the ends of two parallel
rails to the connecting member or bolt of the
next adjacent pair of rails, to thus prevent
spreading of the rails at the joints.
A further object is to provide a connect-
20 ing bolt of a peculiar form and a brace bar
which may be used either singly or in pairs
and which is adapted for detachable en-
gagement with the bolt and which, when so
engaged, will prevent the ends of adjacent
25 rails from spreading.
Other objects will appear in the course of
the following description.
My invention is illustrated in the accom-
panying drawings, wherein:-
30 Figure 1 is a top plan view of a track sec-
tion at the rail joint, with my device ap-
plied thereto;
Fig. 2 is a top plan view showing another
manner of applying the device;
35 Fig. 3 is a fragmentary top plan view of
the middle portion of the brace bar;
Fig. 4 is a section on the line 4-4 of
Fig. 3; and
Fig. 5 is an end view of the brace bar.
40 My device for the purpose before stated
comprises a cross bolt 10. This bolt is
threaded at its end or ends for the recep-
tion of a nut or nuts and is adapted to con-
nect the adjacent ends of two parallel rails.
45 The bolt 10 inward of its screw-threaded
extremity is elliptical in cross section, as
at 11, but the middle of the bolt for a dis-
tance of about 6 inches is cylindrical in
cross section as at 12. The diameter of this
50 cylindrical portion 12 is equal to the greatest
width of the elliptical portions 11. In
actual practice the major axis of the oval
portion 11 will be 1k" and the cylindricalportion 12 will have-a diameter of 14". At
its middle . the cylindrical portion 12 is 55
formed with a shoulder 13, this shoulder-be-
ing in actual practice about 1" deep and
wide.
Coacting with the bolt 10 is one or a pair
of brace bars 14. Each brace bar is screw- 60
threaded at one end, as at 15 and at its op-
posite end is angularly bent as at' 16 and
formed with a head 17. Extending through
this head is an aperture 18, 14k" in diameter
and the head is formed with a slot 19 which 65
extends into or intersects this aperture 18,
this slot 19 having a width equal to the
minor axis of the elliptical portions 11 of
the bolt 10.
In the use of this invention, the bolt 10 is -70
disposed to connect the adjacent ends of
two rails A as in Fig. 1, this bolt passing
through the fish plates a and taking the
place of the ordinary bolt which holds the
fish plates in engagement with the rails A. 75
In Fig. 2, two bars 14 are shown each of
which has its screw-threaded end pass
through the fish plate a and through the
rail B and these bars extend toward and
across each other with their apertured heads so
17 engaged in each side of the shoulder 13.
In order that the curved ends of the bars
14 may pass each other, these curved ends
are preferably deflected out of alinement
with the straight portions of the bars in the 85
manner shown in Fig. 5. It will be seen
that by this mechanism the ends of the rails
B will be held in alinement with the rails
A against any spreading relative to the rails
A or relative to each other, inasmuch as 90
the bars 14 connect the ends of the rails B
with the bolt 10 which connects the ends of
the rails A. Thus the rails A and B cannot
get out of alinement with each other nor can
either of the rails A or B spread with re- 95
lation to each other.
In 'Fig. 2, I show another manner of 'ap-
plying the bolts 10 and the bars 14. The
construction of the bolts 10 and the bars 14
is exactly the same as heretofore described 100
but in this case only one bar 14 is used at
each joint, but these bars extend alternately
in opposite directions. It will be seen that
with this device the adjoining ends of all
four rails may be so connected together as 105
to prevent any possibility of the track
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Stovall, John T. Antispreading Device for Railway-Tracks., patent, April 8, 1919; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1258410/m1/2/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.