Air-Brake Page: 2 of 3
[1], 2 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 STATESPATENT OFFICE.
GUSTAV B. WOLF, OF SAN ANTONIO, TEXAR
AIB-BR AXE.Specification of Letters Patent. Patented Nov. 24, 1914.
Application fled June 7, 1912. Serial No. 702,140.To all whom it may concern:
Be it known that I, GUsTAv B. Wou.', citi-
zen of the United States, residing at San
Antonio, in the county of Bexar and State
5 of Texas, have invented certain new and use-
ful Improvements in Air-Brakes, of which
the following is a specification.
This invention relates to improvements in
air brakes.
10 The objects of the invention are; the pro-
vision of means whereby the air pressure in
the auxiliary reservoir is reduced in apply-
ing the brakes, but no air is exhausted from
the train pipe except to restore the pressure
15 in the auxiliary, thus permitting the air
pump to operate whenever necessary and
continuously if required; the provision of
means whereby the ordinary .brake system
may be used without interference; the pro-
20 vision whereby a specified air pressure may
be maintained in the brake cylinder and in-
creased or diminished at will; and the pro-
vision whereby the brakes on a number of
cars may be applied or released instantly
25 and applied or released simultaneously with-
out exhausting the train pipe.
A still further object of the invention is
to provide an apparatus that will be strong,
durable, efficient, and simple and compara-
30 tively inexpensive to construct and main-
tain, also one-in which the several parts will
not be likely to get out of working order.
With the above and other objects in view
the invention has relation to certain novel
35 features of construction and operation, an
example of which is described in the fol-
lowing specification and illustrated in the
accompanying drawings, wherein:
Figure 1 is an assembled view of the ap-
40 paratus, Fig. 2 is a vertical sectional view of
one of the magnetic controlling valves, Fig.
3 is a horizontal cross section on the line
8-8 of Fig. 2, Fig. 4 is a detail of one of
the electrical contacts, Fig. 5 is sectional
45 detail of one of the check valves, and Fig. 6
is a sectional detail of the other check valve.
In the drawings the numeral 1 designates
the train pipe, 2 the branch pipe leading to
the triple valve 3 mounted on the auxiliary
50 reservoir 4, which is connected to the brake
cylinder 5, all of which are now in common
use and form part of what is known as a
" standard equipment." From this it will be
apparent that in employing this invention
55 no part of the usual brake apparatus is omit-
ted,'but as will be herein after set forth cer-tain parts may be omitted, thus making it
possible to use the invention in connection
with the present apparatus without alter-
ing the same, or employing it with certain 60
parts of the present equipment omitted.
Adjacent the auxiliary reservoir and the
brake cylinder magnetic. controlling valves
A and B are located. As these valves are
substantially alike, a description of one will 65
suffice for both. The valve comprises a
casing 6 cylindrical in form and having a
ncek 7 at its upper central portion. A cap
8 is screw-threaded onto the neck and may
be removed when access is desired. The cas- 70
ing is flanged at its bottom and receives the
flanged portion of a valve cup. 9 which is
secured thereto. A metallic shell 10 fits
snugly in the casing, being inserted from
the bottom. This shell is supported in place 75
by an upstanding flange 11 projecting into
the casing as shown in Fig. 2. The shell has
an integral core 20 projecting thereinto and
also extending into the neck 7. A washer
12 of insulating material is placed on top of go
the shell and surrounds the core. On this
washer a pair of opposed spring contacts 14
are fastened as shown in Fig. 2.' These con-
tacts are arranged to engage the heads of
screws 15 securing binding posts 16 on top 85
of the valve casing, the screws and posts
being insulated from the casing. The ter-
minal wires of a solenoid 17 are connected
through the shell and washer to the contacts
14. The solenoid 17 is mounted on a me- go
tallic sleeve 18 which receives the core 20 of
the shell. An armature 19 is slidable in the
lower end of the sleeve and carries a valve
disk 21 from the center of which a cylin-
drical valve 22 depends. 95
The valve has its lower end pointed so as
to engage a valve seat 23 formed at the bot-
tom of a valve well 24 formed in the valve
cup 9. The valve 22 has radiating vertical
guide flanges 25 which maintain it in posi- 100
tion during its operation. A teat 26 depends
from the cup 9 and is provided with a cen-
tral passage terminating at the valve seat.
The cup is provided with a horizontal pas-
sage 27 extending from the valve well to the 1o5
outside of said cup. In connecting the ap-
paratus a pipe 28 extending from the aux-
iliary reservoir 4 is connected in the valve
cup 9 to.the passage 27 whereby air at aux-
iliary pressure is delivered to the valve well 110
24. The valve 22 is held on its seat by a
plunger rod 29 slidable through the core 201,118,520.
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.
Wolf, Gustav B. Air-Brake, patent, November 24, 1914; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth860037/m1/2/: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.