Automatic Train Stop Page: 3 of 5
[2], 3 p. : ill. ; 23 cm.View a full description of this patent.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
UNITED STATES PATENT OFFICE.
GEORGE F. WARREN, OF DOUBLE BAYOU, TEXAS, ASSIGNOR OF ONE-HALF TO ELTON L.
MITCHELL, OF DOUBLE BAYOU, TEXAS.
AUTOMATIC TRAIN-STOP.Specification of Letters Patent. Patented Dec. 26, 1916.
Application filed October 2, 1915. Serial No. 53,809.To all whomit may concern:
Be it known that I, GEORGE F. WARREN, a
citizen of the United. States, residing at
Double Bayou, in the county of Chambers
5 and State of Texas, have invented certain
new and useful Improvements in Automatic
Train-Stops; and I do hereby declare the
following to be a full, clear, and exact de-
scription of the invention, such as will en-
10 able others skilled in the art to which it ap-
pertains to make and use the same.
This invention comprehends improve-
ments in automatic train stops for locomo-
tives and has for one of its objects to pro-
15 vide a very simple and practical device of
this nature which will.act to automatically
apply the airbrakes when passing by an ob-
stacle unless prevented by an act of the en-
gineer.
20 Another object.of the invention is to pro-
vide an automatic train stop comprising a
lever pivoted to y suitable part of a locomo-
tive and adapted to engage an obstacle, a
weight connected by a flexible member to the
25 handle of the engineer's valve, and means
operated by the lever for allowing said
weight to drop, whereby the valve will be
opened and the airbrakes applied.
The invention also aims to generally im-
so prove devices of this nature to render them
more useful,. practical, reliable, and com-
mercially desirable. .
With these and other objects in view as
will become more apparent as the description
85 proceeds, the invention consists in certain
novel features of construction, combination
and arrangement of parts as will be herein-
after more fully described and claimed.
For a complete understanding of my in-
40 vention, reference is to be had to the follow-
ing description and accompanying drawings,
in which-
Figure 1 is a fragmentary side elevation
of an engine, showing my improved train
45 stop applied thereto, said stop being shown
partly in section, Fig. 2 is a vertical section
taken on the plane of line 2-2 of Fig. 1,
Fig. 3 is a vertical section taken on the plane
of line 3-3 of Fig. 1, Fig. 4 is a section
50 taken on the plane of line 4-4 of Fig. 1,
and Fig. 5 is a detail view showing how the
lever is pivotally mounted.
Referring in detail to the drawings by
numerals, 1 designates as an entirety a.por-
55 tion of a locomotive having a running board2 and fire-box 3. The running board is
formed with an opening 4 through which a
vertical casing 5 extends. It will be noted
that the casing projects a considerable dis-
tance above the running board, and a slight 60
distance below the same. A slide plate 6
is supported upon the underside of the run-
ning board by means of a housing or guide
7 and works through an opening 8 in one
side of the casing 5: 65
A lever 9 is pivoted as at 10, to a plate 11
which is secured to a convenient part of the
locomotive, such as the fire-box 3. The lever
9 is provided upon its lower end with an out-
wardly projecting arm 12. 70
A wire 14, or any other suitable member
is connected at one end to the upper extrem-
ity of the lever and at its other end to the
slide plate 8 which has its under face beveled
adjacent one end thereof. A spiral spring 75
15 is coiled about the wire, bears at one end
against the plate 16 and at its other end
against the slide plate 8. This being an ex-
pansive spring, tends to hold the slide plate
normally under the opening formed in the 80
running board.
A weight .17 is housed within the casing 5
and is normally supported by the slide plate
8. The lower terminal of the weight 17
which engages the plate 8 is tapered or 85
pointed to reduce the area of bearing surface
and consequently the frictional resistance to
relative movement of these parts. A flexible
member 18 is secured at one end to the
weight and at its other end to the handle 19 90
of an engineer's valve 20. This member
passes over pulleys 21 and 22 and passes
from the casing through the opening 23.
When the arm 12 of the lever strikes an
obstacle 24, which may be secured to one side 95
of the track in any desired manner, the slide
plate 8 is moved from under the weight,
allowing the same to drop, which causes the
handle 19 to be actuated so as to release air
from the train pipe and set the airbrakes. 100
The plate 8 engages the upper surface of the
weight 17 when the weight is dropped and
prevents the same from returning to its nor-
mal position until the engineer or other at-
tendant grasps the handle 17 and draws the 105
weight up. In this operation, the upper
portion, of the weight 17 engages the beveled
portion of the plate 8 and easily slides the
same against the tension of the spring 15.
When the engineer knows the train is ap- i1no1,210,025.
Upcoming Pages
Here’s what’s next.
Search Inside
This patent can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Patent.
Warren, George F. Automatic Train Stop, patent, December 26, 1916; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth858615/m1/3/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.