Railroad Crossing Page: 3 of 4
[2], 2 p. : ill. ; 23 cm.View a full description of this patent.
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UNITED STATESPATENT OFFICE.
HORACE A. BAKER, OF PECAN GAP, TEXAS, ASSIGNOR OF ONE-HALF TO
JNO. J. CROWSON AND RICHARD B. CROWSON, OF PECAN.GAP, TEXAS.
RAILROAD-CROSSING.go. 835,898.
To all whom it mazy concern:
Be it known that I, HORACE A. BAKER, a
citizen of the United States, residing at Pecan
Gap, in the county of Delta and State of
5 Texas, have invented certain new and useful
Improvements in Railroad-Crossings; and I
do declare the following to be a full, clear,
and exact description of the invention, such
as will enable others skilled in the art to
io which it appertains to make and use the
same.
My invention relates to improvements in
railroad-crossings, and more particularly to a
derailing mechanism, by means of which lia-
r5 bility of collision will be reduced to a mini-
mum.
The object of the invention is-to provide a
derailing mechanism of this character which
will be of simple and comparatively inexpen-
20 sive construction and very effective in opera-
tion.
With the above and other objects in view
the invention consists in the construction,
combination, and arrangement of devices
25 hereinafter described and claimed.
In the accompanying drawings, Figure 1 is
a plan view of a railway-crossing having my
improved derailing mechanism applied there-
to. Fig. 2 is a detail view, on an enlarged
30 scale, of one of the derailing devices and its
connected parts. Fig. 3 is a longitudinal
sectional view taken on the plane indicated
by the line 3 3 in Fig. 2. Fig. 4 is a detail
sectional view taken on the plane indicated
35 by the line 4 4 in Fig. 2, and Fig. 5 is a detail
sectional view taken on the plane indicated
by the line 5 5.in Fig. 1.
Referring to the drawings by numerals, 1
and 2 denote two intersecting railroad-tracks
40 upon which my improved derailing mechan-
ism is mounted. This mechanism comprises
four derailing-blocks or devices 3, located at
suitable distances from the intersection of the
track-rails, and one being provided for each
45 of the four branches of the crossing. Each of
the derailing blocks 3 is carried by a trans-
versely-sliding bar 4, which has its opposite
ends connected by links 5 to angle-levers,
bell-cranks, or the like 6, which are mounted
5o upon vertical pivots 7, located upon the op-
posite sides of the tracks. Mounted in suit-
able bearings adjacent to the sliding bar 4
upon each of the branches of the intersecting
tracks 2 are transversely-extending shafts 8,Patented Nov. 13, 1906.
which have upon their projecting ends wheels 55
or the like 9. Each of the shafts8is rocked or
oscillated by means of a push-bar 10, located
upon one side of one of the track-rails and
adapted to be depressed by the flanges of the
wheels of a car or trainpassing over the same. 6o
Each of these bars has one of its ends pivotally
connected to a crank-arm 11 upon the adja-
cent shaft 8 and its other end pivotally con-
nected to a similar crank-arm 12, suitably
mounted upon one of the cross-ties or upon one 65
of the track-rails. The crank-arms are equal
in length, so that the bar 10 will be maintained
in a horizontal plane as it swings vertically.
Suitable springs 13 are provided for main-
taining the bars10 in their elevated positions, 70
so that when the flanges of the car-wheels
strike their rounded ends they will be forced
downwardly against the tension of said
springs to rock the shafts 8 and partiallyro-
tate the wheels 9. Each of the wheels 9 is 75
connected by a cable or other flexible connec-
tion 14 to one of the rotary disks 6 upon the
adjacent side of one of the branches of the in-
tersecting track, so , that when the shaft 8
upon one branch of one of the tracks is actu- 8o
ated its motion will be imparted through said
connecting-cables to the two rotary ,disks.
upon the adjacent sides of the two branches
of the other or intersecting track, in order
that the two disks thus actuated will shift the 85
derailing-blocks, which they control, from an
inoperative to an operative position. Thus
as a car or train approaches a crossing upon
one of the tracks and actuates the bar 10
upon that branch of said track the two de- 90
railing - blocks upon the branches of the
other or intersecting. track will be moved
from an inoperative to an operative position
in order that trains approaching the cross-
ing in either direction upon the last -men- 95
tioned or intersecting track will be derailed
before they reach the crossing.
Each of the cables 14 has one of its ends se-
cured to and wound upon one of the wheels 9
and its other end secured, as at 15, to one of roo
the rotary disks 6, and it is provided with
suitable guides 16, located along the tracks
and also passed around one of, two super-
posed pulleys 17, mounted upon a vertical
pivot 18, located adjacent of the intersection 105
of two track-rails. One of these groups or
pairs of pulleys is mounted at each of the four
corners of the crossing, and they are protect-Specification of Letters Patent.
Application filed June 7, 1906. Serial No. 320,596.
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Baker, Horace A. Railroad Crossing, patent, November 13, 1906; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth509317/m1/3/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.