Improvement in Automatic Brake-Setting Mechanism for Pneumatic Brakes. Page: 3 of 4
[2], 2 p. : ill. ; 23 cm.View a full description of this patent.
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UNITED STATES PATENT OFFICE0
ROBERT J. WELIDbN, OF FORT WORTH, TEXAS.
AUTOMATIC BRAKE-SETTING MECHANISM FOR PNEUMATIC BRAKES.
1,124,082. Specification of Letters Patent. Patented Jan. 5, 1915.
Application filed April 18, 1914. Serial No. 832,908.To all whom it may/ concern.:
Be it known that I, ROBERT J. WELDON, a
citizen of the United States, residing at
Fort Worth, in the county of Tarrant and
5 State of Texas, have invented certain new
and uiseful Improvements in Automatic
Bra'-- Setting Mechanism for Pneumatic
Braises; and I do .hereby declare the fol-
lowing to b a full, clear, and. exact descrip-
10 tion of the invention, such as will enable
others skilled in the art to which it apper-
tains to make and use the same.
This invention comprehends certain new
and useful improvements in automatic brake
15 setting mechanism for pneumatic brakes and
has for its primary object to provide a. de-
vice of this :character which will be of ex-
tremely simple construction and operation
as well as highly efficient in use, and which
20 may be applied to cars and connected with
the train air line to automatically set the
air brakes 1)on derailment of the car.
Another object is to provide a device of
this character which will be composed of a
25 minimum number of parts, inexpensive to
manufacture and apply and which will in-
clude a member adapted to ride above the
sails and be forced upwardly by the same
should one of the wheels leave its rail to
30 operate the air brakes and thereby bring
the entire trails to a standstill,.and prevent
loss of property and lives.
A further object cf this invention is to
provide a device of this charter including
35 hollow nmemabers lhiivin(g colimlunic itioni With
the air line an4 h ving norinally closed
valves therein ;dapted to he opened upon
operation of the mechanism to cause auto-
matic pplicatio of the bra kes in the event
40 thatt ay wheel of the train is derailed or
any journal rokenrm or burnt off.
This invention has for still further ob-
ject to generally improve and simplify the
construction and operation of air brake at-
45 ta(hments of this character and increase the
efhlcien'y thereof without increasing the cost
of tl 'came.
With these and other objects in view as
will become more apparent as the descrip-
50 tion proeeds. the invention oiiists in cer-
tain novel features of construction, ombi-
nation an d atrragement of parts as will be
here na fter more fully described and
claimed.
55 For a complete understanding of my in-
vention, reference is to be had-to the fol-lowing description and accompanying draw-
ings, in which-
Figire 1 is a fragmentary side elevation
of a car with my invention applied thereto, 60
Fig. 2 is a rear elevational view thereof,
Fig. 3 is a top plan view of the mechanism
removed, Fig. 4 is a detail plan view of
one of the vertical rods removed, Fig. 5 is
a view similar to Fig. 4 and at right angles 65
to the same.
Referring in detail to the drawings by
.numerals, oppositely directed pipe sections
2 which extend toward the opposite sides of
the car, are connected with the train air 70
line pipe 1, as 'shown at 3 and have up-
wardly offset portions 4 within which are
positioned normally closed valves' 5, the
outer extremities of said pipe sections 2
being open, whereby the train air line pipe 75
1 may be relieved of the compressed air
within the same when either of the valves
5 is moved to open position. The pipe sec-
tions 2 are secured to the bottom of the car
body 0 by suitable hangers 7, preferably 80
engaged around the upwardly offset por-
tions 4 of said pipe sections 3. It will also
be understood that the pipe sections 2 may
be secured to the train air line pipe 1 at
any suitable point, but are preferably pO- 85
sitioned over the truck and in front of the
center casting. I do not wish to limit my-
self, however, in this respect, as the posi-
tion of the pipe sections 2 may be varied,
is desired. 90
To the projecting stem of each valve 5, I
have secired a lever arm 8, t the free or
lower end of which is pivot 1y connected
the upper end of a vertical.bar 9, which
extends through a guide strap 10 which 95
has its opposite end offset from its main
portion and seiuceed to the supporting mem-
ber 11. of the truck, as shown at 12. After
being passed thiroigh the guide straps 10,
the bars 9 are twisted, to place the lower 100
ends 13 thereof at right angles to the main
portions of said bars 9 and to -strengthen
said bars. The lower end 13 of each bar
9 is provided with an elongated slot 14,
through which are engaged the opposite 105
ends 15 of the horizontal actuating bar
16 which has its opposite, extremities
carved upwardly, as shown at 17, and
Is central portions bowed upwardly, as
clearly shown in Fig. 2. The horizontal nio
act.iatin g bar 16 is limited in longitudinal'
movement by means of the stop pins N'
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Weldon, Robert J. Improvement in Automatic Brake-Setting Mechanism for Pneumatic Brakes., patent, January 5, 1915; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth857870/m1/3/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.