Switch Attachment. Page: 2 of 3
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UNITED STATES PATENT OFFICE.
GOVERNOR D. WARREN, OF DALLAS, TEXAS, AND JAMES CASEY, OF
COALGATE, INDIAN TERRITORY.
SPECIFICATION forming part of Letters Patent No. 517,783, dated April 3, 1894.
Application filed June 26, 1893. Serial No.478,927. (No model.)
Yo all wholr it mary concern:
Be it known that we, GOVERNOR D. WAR-
REN, of Dallas, in the county of Dallas and
State of Texas, and JAMES CASEY, of Coal-
5 gate, Choctaw Nation, Indian Territory, have
invented certain new and useful Improve-
ments in Switch Attachments; and we do
hereby declare the following to be a full, clear,
and exact description of the invention, such
io as will enable others skilled in the art to which
it pertains to make and use it, reference be-
ing had to the accompanying drawings, which
form part of this specification.
Our invention relates to an improvement in
I5 switch attachments, and it consists in the
novel features of construction which will be
fully described hereinafter and especially
pointed out in the claims.
The object of our invention is to provide an
o0 improved device for the purpose of prevent-
ing cars from running on to the main track
from the switch or siding when the latter is
closed; and a further object is to operate the
said device in conjunction with the switch
25 throwing mechanism in such a way that it
will be thrown in and out of an operative po-
sition at the required time.
Referring to the accompanying drawings:
Figure 1, is a plan view of a main and side
30 track, showing our improved device applied
to the latter. Fig. 2, is a detached perspec-
tive view of the movable shoe.
A designates the main track; B the mov-
able rail thereof; C the switch or side track
35 and D the side track movable rail. The
outer or free ends of rails B and D are piv-
oted to transverse bar E which extends later-
ally beneath the switch stand F in which stand
is mounted an operating lever G, which may
40 be of any preferred construction having at its
lower end a pivotal connection with the said
transverse bar. The outer end of the bar is
extended beyond the switch stand and is piv-
otally secured to the angle iron H, as shown.
45 J is a safety shoe or block having arm J'
which is pivotally secured to the switch bed,
as shown. This safety shoe or block is pref-
erably arranged adjacent the outside rail of
the switch and has formed upon its upper
50 side an outwardly projecting flange K, which
when the shoe is turned upon its pivot pro-
jects directly over one of the siding rails and
directly in the path of a car wheel when pass-
ing out of the switch.
L is a link loosely connected at its inner 55
end to the under side of the shoe J and at its
outer end it is pivotally connected to the an-
gle iron M, which is pivoted as shown, adja-
cent the outer rail of the switch.
The arms H' and M' of the respective angle 60
irons H and M are connected by the wires N
which are extended through a protecting pipe
or casing O, so that when the longitudinally
movable bar E is moved outward for closing
the switch the link L will be drawn outward 65
by means of its connection with iron H and
wires N leading from the latter to iron M.
thus throwing the flange of the said shoe or
block over the rail of the siding so as to ef-
fectually obstruct the forward movement of 70o
a car upon the siding. When the switch is
open with the main track the movement of
the above mentioned mechanisms is reversed
thus pushing inward the said shoe or block
and out of the way of the track, so as toper- 75
mit an unobstructed passage of the cars from
the siding to the main track. Thus it will be
seen that the safety device works in conjunc-
tion with the switch operating mechanism so
that the same movement which closes the 80
switch to the siding sets the safety device,
and the opposite movement which opens the
switch to the siding removes the device from
its operative position.
The end of the shoe or block is provided 85
with a vertical groove 0' for the purpose of
catching the flange of a car wheel which may
run against it and in this manner the block
is locked against the rail and if the velocity
of the car is so great as to force the wheel 90o
over the block the flange upon the upper side
of the shoe is sufficient to throw the wheel off
the track, and thus in an extreme case apre-
vent the car from leaving the siding.
The device is simple in construction and 95
may be readily applied to switches now in
Having thus described our invention, what
we claim, and desire to secure by Letters Pat-
ent, is- zoo
1. An improved derailing guard comprising
a bar pivoted at a point inside of the rail and
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Warren, Governor D. & Casey, James. Switch Attachment., patent, April 3, 1894; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth173697/m1/2/: accessed May 20, 2019), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.