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E. c-s. Bussä
RMLWAY BRAKE BEAM
Filed Jan. 3l, l944
2 S‘ñeeis-Sheet
INVENTOJL
VEDWIN (_ìBUSS'E
ATTORNEY
Sep't. 24, 1946.
E. G.- BussE
‘
2,408,015
RAILWAY BRAKE BEAM
Filed Jan. 31., 1944
2 Sheets-Sheet 2
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1N VEN TOR .
_EDWIN e. Bassa.
BYÉIDLM/4 Q2 ¿î
ATTORNE Y
Patented Sept. 24, 1946
2,408,015
UNITED STATES PATENT oFFicr
2,408,o1_.5.
RAILWAY BRAKE.
Edwin G. Busse, Chicago, Ill., assìgnor to Chicago`
Railway» Equipment Company, Chicago, Illa. a
corporation of Illinois
Application January 31, 1944,Í Serial No- 5202459
14 Claims.
1
'2
Y
`The invention relates to railway brake beams
ci the built-np Ítnisstype .and consists primarily
the brake heads so asv to facilitate the assembly
in novel end structure for such beams.
bling the beam, and to accommodate support of
and replacement of the head, without disassem
‘
Beams of the` type referred to usually com
prise a cambered compression member oi chan
nel-shape, ll-.shape or similar cross section, brake
heads at the ends` ci the compression member
each arranged for mounting a brake shoe and
631.011 hallìng. @t PQQKQÜ ÍOl' .IQQQÍVÍQS’ @Il .Bild Qf. lille
compression member, a strut at the middle of
the. beam. apert edv for the brake lever iulcrum,
a. tension., member with, its ends, secured to the
ends. ci the compression member either directly
or through the brake. heads cr other thrust block
elements.t
It has long beenL aseneral practice to suspend
the brake beam _from the brake frame by swing
hangers, the lower ends of which are received
in recesses provided therefor in the brake head
and the-upper ends. of which. are seated in brack
the beam by swing hangers in the usual manner
if the intended support vfrom the side frame is not
available.
Other detail objects as will appear below are
attained by the structure, selected forms of which
are illustrated in the accompanying drawings in
Which-
20
line 2_2 of Figure 1.
Figure 3 is `an end view of the beam._
Figure 4 is a front View of one end of the beam.
Figure 5 is, a detail longitudinal section through
the end of the beam and the adjacent portion
25
of- the supporting bracket and is taken` approxi
mately Oil. the line 5_5 of Figure 1.
Eigure 6 illustrates, the detail of a wear plate
preferably applied to the end member but omitted
from. the other views to avoid confusion.
Figure ‘7’ is
end View corresponding to lFig-V
bracket may engage a. portion of the beam com
pression member spaced inwardly from the brake
23, 1,9%0,v to the present applicant,v and in D» M
`
15
during application and releasefof the brake, The
head., as shown in Patent 2.197.785, issued. April
`1
the _type referred to showing adjacent portions
or the truck side` frames and beam supporting
brackets and of- the wheels to which the brake is
applied.
VFigure. 2 is a vertical transverse portion through
the b_eam and showing the adjacent portion of
the side frame and is taken approximately on the
ets on the truck frame,
Another manner of supporting the- brake beam
is to provide the side frame, with a bracket ad
jacent to. the end of the beam and underlying
a part of the beam to slidingly support the beam
-
Figure 1 is a plan View of a brake beam of
30 ure 3 but illustrating another ¿form of the in
Liebt Patent _2,201,4421z issued May 21, 1.940; or
may engage an integral extension of the brake
volitionV
beam compression member, as shown in a co
a brake beam and illustrates another 'form of
Figure, t is. a horizontal .section ci one end of
pending application bythe present applicant iiled
July 8, 1942, Serial> N'o. 450,154; or by an exten
the invention.
35
sion on the tension member or its nut or» by an
extension on the brake head, asA shown in Pat
ents 2,226,551, issued December 31, 1940, and
2,254,514, issued September 2, 1941, both- to the
present applicant. Each of* these arrangements
40
involves a special construction of the compression
member of the brake beam.
Fiebre. 9 is a vertical ,section taken on line
S-es or Figure 8.
Figure 1D. is. a rear view of.v the .structure shown
in Figures 8 and `9
1n the. arrangement
Figures `1-ii the '
beam compression member I, is of channel Secf
tion.. 'rhe'tensicn rod i, comprises a round bar.
Strut 3Y a casting or forging having apertures
4 4forseatmg the braise lever `idlerrrm pin (not
shownl- Assembled with the conversing" beam
The main object of the _present invention is to
afford a simple, effective support from the truck
_frame ior the end of a built-up truss` type brake
tension and compression members are end mem-V
bers. 5` each- having a pocket-forming portion 6
open. at one side to receive the end oi the oom
beam having the usual compression member and
tension member and, in some forms of the in
vention, the brake bead. This object may be
pression. member which is seated against the
attained by providing separate thrust block for
the end of the brake beam. adapted to seat the
compression member and the brake head and
the tensioningr device on` the tension member and
to engage the supporting bracket. Additional
inner face 1 of the pocket.. 'Ijhe outer face 8 of
50 the pocket structure `seats a tensioning nut il
objects of the invention are to correlate the end
of the beamI supported as indicated; above, with
threaded on the end portion of the tension mem
ber, The end member includes a sleeve 6a (Fig
ure 2) which surrounds the adjacent portion of
55
the tension member, thereby preventing flexing
0f the tension member about its threaded portion
2,408,015
3
4
_
has a pair of vertically spaced flanges 36 extend
ing from its closed side lengthwise of the beam
member and the beam, as disclosed in E. G. Busse
beyond nut 34 on the tension member and spaced
Patent 2,319,440, issued May 18, 1943.
above and below the same and inclined to the
A flange structure projects from the end mem
ber pocket structure and includes a portion I I CII general plane of the beam to receive between
them supporting bracket structure (not shown)
for mounting the brake head I0 which has verti
`on the adjacent portion` of _the truck _frame simi
cally spaced> jawsjreceiving"the-flange portion
larly to the arrangement shown in Figures 1_6.
II between them. Vertically disposed rivets R
The brake head 31 is carried by end member
secure the brake head to the end member inde
32 but is mounted directly upon the box-like body
pendently of the beam tension and compression
portion of the end member, the brake head jaws
members.
38 being spaced apart vertically a greater dis
The ñange has an end portion I3"projecting
tance than- the jaws I2 in the head previously'
longitudinally of the beam beyond the vends of
described ‘and .extending over the top and bottom
the tension and compression members and be
and prolonging the useful life of the tension
yond the side of the brake head and adapted to
’ walls’of the endmember pocket structure which
receives the end portions of the beam tension
. be received between brackets I 4 projecting in
and compression members. The head is secured
to the' end member by horizontally disposed rivets
wardly from the adjacent truck side frame I5 l
and to slide on the brackets transversely of the '
39 and the details of this head and end member
beam whereby the beam. is supported and guided
in its movement towards-and ‘from’ the truck 20 .assemblyzare further< illustrated, described and
claimed in a copending application by theA .pres
wheels. Various arrangements of the side frame
ent inventor, SerialY No.- 521,011, ñled February
support elements are illustrated and described in
an application liled by the present inventor, Se
`It will `be understood that the details of the
rial No. 503,865, issuedas Patent No. 2,383,955 on f
Sept. 4, 1945. Il' preferred, the beam supporting 25 `_structures may be varied in other` ways than
those shown without departing from thespirit
element on the side frame may be integral with
of the invention _and that some of the _features
thersîde frame.
_
'
described may be yusedwithout necessarily _in
kPreferably ñange portions II- andV I3 of the
end device are disposed angularly to each other fr cluding all of the features described.v iIt is con
so that'the head mounting portion II is posi 30 templated, for example, that wear plates similar
to those shown in Figure 6` may be provided in
tioned in the same'general horizontal plane as
each form of the invention and that each of the
the beam members I, 2'and 3, whereby-the beam
brake heads may receive thehanger in a top
is adapted to receive the braking force »applied
4,1944.
_
.
,_
__
,
horizontally by the usual brake pull rods, -bottom
recess, as indicated at I-I and I-I’, or may receive
connections,l etc.,- while the support-engaging
the hanger in _a central recess in the well known
manner when the beam is applied to aftruclr
ñange'portion I3,.is inclined at an angle` of ap
frame having the usual brakehanger _bracket
but not providedwith. support and guide brackets
opposite to the Gnd of _the beam, _Exclusivel‘use
proximately 12° so that thebeam moves along-a
radius of the wheel W as the brakeshoes »S are
applied to the‘wheels, thus avoiding a twisting f
moment in the beam tension and compression 40 of those modifications coming within- the scope
of the claims is _coriiaemplatedl
’
'
_and head members when the beam -as awhole
What is claimedis:
__ __
'
__
_
_,
is inclined from the horizontal. YThis gives the
beam greater strength for a given size and weight
of material.
_
1. In a railway trusstype brake beam having
a compression member and- a tension member
.
Preferably the support engaging portion I3 ofV
the -thrust block is .provided with a renewable
wear plate. I 'I to extend the useful life of the
converging at the end ofthe beam with the yten
sion memberextending diagonally through the
end portion and beyond the end of the compres.
sion member, an end device having a pocket
be- facilitated'by extending it under the brake. ‘ receiving the end portions of said members, a
head jaws I2 (see Figure 6).
tensioning device on the tension member holding
» In an emergency, or- if the beam is applied to
the same and the devicewandlthe compression
a truck frame without the brackets opposite the
member in assembledv relation'with each other
ends of the beam, the beam may be suspended by
and having a structure projectingbeyond said
beam, and-the application of this wear plate may
a conventional hanger H.
_
»
Figure 7 illustrates another form of _the inven
tion in which the support-engaging portion I8 of
the thrust block flange is disposed in the same
_ general plane as the brake head mounting flange
pocket to form a »seat for a brake head -and ex
tending longitudinally and. transversely of _,_the
beam beyond said seat and' arranged to Vslidably
engage a support on an adjacent truck part. _.
2. A brake beam as described in claimA 1 -in
and the beam compression member, tension mem
which the support-engaging structure is inclined
ber and strut, which arrangement may be prefer GO from the general plane-of the compression and
able if the Vline yof .thrust of the brake force on
tension members s0 as to-move the beam transF
thebrake beam is inclined or if the twisting mo
ment resulting from _the application of the brake
force horizontally and the movement of the brake .
versely `of its general plane as_the support-en
gaging structure slides over-a support inclined
to the general plane ofthe beam.-
.-
..
.
beam along an incline is not objectionable.__
3. .Abrake .beamas describedin claiml in
Figures -8,--10 illustrate another form of the in
which the support-engaging structure comprises
vention in which the channel compression mem
vertically spaced flanges. arranged to receivea
ber 30 and the round rod tension member 3I
support flange» between them.
, A
. '
correspond to those shown in Figures 1-6. The
4. In a railway truss type. brake beam having
beam end member 32, similar to the end member 70 a compressionv memberßand a tension member
previously described, has an inner seat for the
converging at theirr ends, an Aenddevice having
end of the compression member and an outer
a pocket structure mounted on the adjacent ends
seat, for the tension member nut 34, and a sleeve
of said members and. having a flange extending
35 for holding the tension member against ilex- .
ing about its threaded end.
longitudinally of the beambeyond .the ends -of
The end member 75 the compression and tension >members to slidably
2,408,015
engage a supporting bracket, and also extending
forwardly from the pocket structure, a tensioning
element seated against the end device and hold
ing the latter and said members assembled, and
a brake head spaced inwardly of the beam from
the support-engaging portion of the flange and
having a rearwardly opening jaw receiving said
flange to mount the head.,
5. A brake beam as described in claim e in
which the portion of the flange projecting beyond
the end of the beam tension and compression
members ‘is there twisted from the general plane
of the beam to slidably engage a similarly in
. clined support.
'
6
brake head, and a brake head mounted on said
latter-mentioned seat in line with said tensioning
device transversely of the beam, said end device
having a flange projecting lengthwise of the beam
beyond the ends of said members and beyond
the side of said head and elongated transversely
of the beam beyond the seat for the head to pro
vide extended downwardly and upwardly facing
surfaces arrangedY to slidably engage vertically
spaced upwardly and downwardly `facing surfaces
on the adjacent part of a truck frame to support
and guide the beam in its movement towards and
away from the truck wheels.
' l0. A‘brake »beam as described in claim 7 in
6. In a railway truss type brake beam, a com
which the compression member and tension mem
pression member, a tension member provided with
ber are positioned in a common plane and the
a tensioning element, said members being posi
projecting ñange on the end device is inclined
tioned in the same general plane, an end device
at an angle to said plane whereby the beam as
having a pocket-forming portion receiving the
a whole may be disposed horizontally but may
ends of said members and having seats extending 20 be raised and lowered as it slides along the sup
transversely of said plane and facing in opposite
port on the truck frame.
directions and arranged to engage said tensioning
l1. A railway brake beam end member com
element and the end of said compression mem
prising a pocket structure open at one end for
ber respectively and having a flange forwardly of
receiving the converging end portions of the com
the end portions of said members and positioned 25 pression and tension members of a truss type
in said plane, and a brake head having an open
brake beam, its other end being apertured for
ended jaw receiving said `ila-nge and secured
the passage therethrough of the tension member
of the beam, and -forming a seat for a tensioning
7. In a railway truss type brake beam, a com
, device on the tension member, there being a part
pression member, a tension member provided with 30 projecting from the pocket structure forming a
a tensioning device, an end device having oppo
seat for a brake head and forming a relatively
sitely facing seats for the end of the compression
wider ñange projecting longitudinally and trans
member and for the tensioning device and also
versely of said pocket structure beyond said head
forming a seat for a brake head, and a brake
seat and arranged to support the beam upon an
head mounted on said latter-mentioned seat, said 35 adjacent truck part.
end device having a flange projecting lengthwise
12. A railway brake beam end member as de~
of the beam beyond the ends of said members and
scribed in claim 11 in which the support engag
beyond the side of said head and extending trans
ing portion of the ñange is disposed at an angle
versely of the beam beyond the head mounting
to the head mounting portion of the flange so as
seat and arranged to slidably engage an element 40 to move the beam transversely of its general plane
on the adjacent part of a truck frame to sup
as the brakes are applied and released.`
port the beam.
13. A railway brake beam end member com
8. In a railway truss type brake beam, a com
prising a pocket structure open at one end for
pression member, a tension member provided with
receiving the converging end portions of the
a tensioning device, an end device having seats
compression and tension members of a truss type
for the end of the Icompression member and for
brake beam, a wall at the opposite end of the
the tensioning device, and a brake head mounted
pocket structure, one side of which wall forms a
on said end device andl in line with said tension
seat for the end of the compression member and
thereto.
»
'
ing device, transversely of the beam, said end
device having a ñange projecting lengthwise of
the beam beyond the ends of said members and
beyond the side of said head and extending trans
the other side of which wall forms a seat for a
tension device on the tension member, and flange
structure projecting beyond said outer seat and
forming a brake head mounting, insertable trans~ '
versely of the beam beyond the ends of said mem
versely of a brake head between its jaws, and a
bers and arranged to slidably engage an element
relatively wider terminal for engaging a support
on the adjacent part of a truck frame to support 55 on an adjacent truck part.
and guide the beam as the brakes are applied
14. A railway brake beam end member as de->
and released.
scribed in claim 13 which includes a flange eX
9. In a railway truss type brake beam, a com
tending from the front of the pocket structure
pression member, a tension member provided with
in a plane extending lengthwise of the pocket
a tensioning device, an end device having a seat
60 structure and arranged to mount a brake head.
for the end of the compression member and a
seat for the tensioning device and a seat for a
EDWIN G. BUSSE.
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