close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2132232

код для вставки
Oct. 4, 1938.
c. c; DURYEA
2,132,232
CAR BODY BOLSTER `
Filed July 30, 1956
r3
0
0
QÉOG
4 Sheets-Sheet l
Oct. 4, 1938.
o. c, DURYEA
2,132,232
CAR BODY HOLSTER
Filed July so, 195e
4 Sheets-Sheet 2
OÍ #
o. c, DURYEA
Oct. 4, 1938.
2,132,232
CAR BODY BOLSTER
Filed July Z50, 1936
.` ` O
O
ww
/QR`
`. /ÃS
@n
s
à
3
à
4 Sheets~-5heet 5
Oct. 4, 1938.
o, Q_ DURYEA
2,132,232
CAR BODY BOLSTER
Filed July 50, 1956
4 Sheets-Sheet 4
2,132,232V
Patented Oct. 4, 1938
PATENT oFF‘l-CE
UNITED STATES
2,132,232
CAB BODY BOLSTER
Otho C. Dnryea, Waterbury, Conn., assignor lto
0. C. Duryea Corporation, New York, N. Y., a
corporation of Delaware
Application July 30, 1936, Serial No. 93,435
14 Claims.
(Cl. 10S-228)
This invention- relates to improvements in` car
body bolsters and it consists of the matters here
inafter described and more particularly pointed
out in the appended claims.
The car ,body bolster with which the present
invention is more particularly concerned, is of the
kind used in the we1l~known Duryea type of un
derframe.
In such underframes, there is no rigid
connection between the bolster and the center sill.
10 The center sill in such underframes passes freely
through openings provided therefor in the body
bolster, the connection being through cushion
gears arranged between the sill and holsters.
Heretoi'ore, such bolsters were made either as an
integral casting or they were built up from pre
fabricated plates and a center brace casting riv
eted together. Both the cast bolster and the rlv
eted bolster are objectionable in certain respects.
Cast bolsters of this type are heavy and the cost
20 is high. In the riveted bolster, overlapping joints
are used and this necessitates care in matching
up the holes in the overlapped parts and diillcul
ties are encountered in making tight rivets. Also,
inside corner seams are present in which water
may lodge and thus start bolster corrosion.
Again, the rivet heads on the top of the bolster
require routing out of the car flooring to accom
modate such heads and this, of course, adds to
the expense.
‘
One of the objects of the present invention is
to provide a body bolster of the kind adapted for
use in the Duryea type underframe and which
avoids the objectionable features oi' the 'cast and
the riveted holsters.
`
>
Another object of the invention is to provide a
bolster of this kind which is simple in design,
lighter in weight than the cast or riveted bolster
and which at the same time shall provide ample
-vantages thereof will more fully appear as 1 pro
ceed with my specification.
’
In the drawings:
Fig. 1 is a view partly in top plan and
'
rtly
in horizontal section of a car bolster embo
ng 6
the preferred form of the invention, the plane o!
the section being indicated by the line |----I of
Fig. 2;
-
Fig. 2 is a view in elevation of the bolster with
parts at the left hand end thereof shown as 10
broken away better to disclose the interior con
struction thereof;
Fig. 3 is a transverse vertical section through
the bolster on an enlarged scale as taken on the
line 3--3 of Fig. 1;
1
Fig. 4 is a. vertical section through the outer end
of the torque arm connection of the bolster, also
on an enlarged scale and as taken on the line
k4--~I of Fis. ‘1;
y
`
Fig. 5 is a transverse vertical section through 20
an end portion of the- bolster in the plane of the
side bearing bracket, as indicated by the line I--l
of Fig. 1;
Fig. 6 is a detail transverse vertical sectional
view through a part of the bolster in the plane of. 25
one of the sill openings, as taken on the line l--l
of Fig. 2;
f
Fig. '1 is a detail horizontal sectional - view
through a part ofthe bolster as taken on the line
'i--1 of Fig. 2;
30
Fig.` 8 is a perspective view oi' one o! the
pressedvpan-like halves ofthe bolster, after the
associated bracing and stiñening parts have been
assembled and secured in place therein;
Fig. 9 is a fragmentary perspective view of one 35
of the pan-_like halves of the bolster, illustrating a
modiiled formo( structure l'which may be advan
tsseowly employed:
~
'
.
'
‘ Fig. 10 is'A a detail vertical sectional view
strength and rigidity in the finished bolster.
Another object of the invention is to provide
a built-up body bolster construction wherein the
throughspartofthebolsterastakenontheline 4.o
parts are so formed and so correlated that they
through the-bolster as taken on the line II--li
can be secured together by butt welding, thus
eliminating overlapping joints and rough edges
45 and corners.
Ill-il of Fig. 3; ,
-
’
vFig. 11 is another >vertical sectional view
of Fig. 3~ and >with the center plate omitted;
~1l1g_.- 12 is a cross section through a part oi the 45
bolstenlllustrating one form of the box-like sec
A further object of the invention is to provide Y tion `that may be employed in the improved `
a bolster of this kind having ageneral box-like
cross section and formed with openings in the di-y
aphragm or shear resisting walls for the passage
of the center sill, the bolster beingl braced in the
vi'cinity of said openings so as to resist all stresses
and strains imposed thereon in use for its in
tended purpose.
.
The above mentioned objects o! the invention,
as well as others, together with the several ad
bolster;
_
’
,
.
.
Fig. 18 is .a view similar to Fig. 12 illustrating a
modified form of >box-like .section which may be'4 50
advantageously employed in the bolster and
which will be more fully referred tolater;
y
Fig. 14 is another view similar to Fig. 12 illus
trating a further modified form of'box-like sec
tion which also may be advantageously employed 55
aisaasa
in the bolster and which will also be more fully
referred to later;
ñanges I! and 2l. At the ends of the pans are
formed end walls 23 and 24 respectively.
The end walls 23-24 and the ends oi' the mem
bers I9-20 of both pans are provided with suit
able holes for the rivets by which the ends of the
finished bolster body are attached to the side
sills of the associated underframe. In the outer
l
Fig. 15 is a view similar to Fig. 12 illustrating
still a further modified form of box-like section
which will be more fully referred to later;
Fig. 16 is a detail sectional view showing the
structure of a butt weld employed between two
right angled parts embodied in the bo'lster, and
Fig. 17 is a detail sectional view through
10 another form of weld which is advantageously
employed in the bolster and which will be more
fully referred to later.
d
In general, the bolster embodies a pair of
matched pan-like front and rear halves, each of
15 substantially a channel-likey cross section and
each including a vertical diaphragm or shear
resisting web, a top horizontal flange-like tension '
member and a bottom flange~like compression
member. The mid portion of the compression
20 member is parallel with the tension member but
the ends of said compression member incline up
wardly and outwardly so that the bolster tapers
toward its ends. Also, the diaphragm tapers to
ward the ends so that each half is wider at the
mid portion than it is at its ends.
Due to
the presence of these openings, certain stiifening
elements and braces are employed at said mid
35 portions to strengthen and reinforce the îpans in
the vicinity of the openings so that the bolster is
not weakened by the presence of said openings.
Certain of the elements associated with the rear
pan project outwardly beyond its diaphragm to
40 provide a connection for the springs of the gear
which cushion the relative movement between
bolster and sill in use. Certain of the elements
associated with the front pan, also project out
wardly beyond its diaphragm to provide the con
45 nectlon for one end of the torque arms, the‘rother,
end of which is adapted for connection with an
end sillforming a part of the car structure.
After the stifiening and bracing elements men
tioned have been secured -in position in their
50 respective pans, the top and bottom flanges pro
viding the tension and compression members re
spectively, as well as certain" of the end wall
members, are matched in edge-to-edge engage
ment and welded together to form the body ofi' the
55
bolster.
Referring now in detail to that embodiment of
the invention, illustrated in Figs. l to 8 inclusive
of the accompanying drawings, the improved bol
ster comprises essentially, a pair of elongated
60 pans lliiand I6 respectively.
The pans which are
of a channel-like cross section, comprise verti
65
body bolster, coact to form openings 2la' as best
appear at the left hand end of Figs. 1 and 2 re- spectively. These openings give access for spot
ting the before-mentioned rivets in place and per~
mit the application' of a bucker to said rivets
during the upsetting thereof.
'
>
The pans which are alike and will therefore
match, are made either entirely'or partly as steel
stampings from the same set of dies. When said
pans are assembled together as will later appear,
they form a hollow body having a general box 20
like cross section. The edges of the flanges |I-2O
and 2I-22 along with the edges oi' the end wall
22-24 may be bevelled on as best shown in Figs.
3, 5 and 6 so that when butted together. they form
g . a welding groove for a purpose later to appear.
At the mid portion of the diaphragìxrof each
"pan”, as‘each bolster half will hereinafter be
referred to for brevity in expression, are aligned
rectangular openings, spaced equidistant on each
80 side of the transverse median line of the bolster.
These openings accommodate the free. passage
therethrough of the center sill of the car.
ends of the members 2I-22 or both pans near
said end walls, are recesses which in the finished
cally disposed webs H and I l respectively, form
ing the shear resisting diaphragms of the bolster,
horizontal top flanges I9 and 20 respectively,
forming the tension member of the bolster and
horizontal bottom flanges 2i and 22 respectively,
forming the compression member of the bolster.
At the mid portion of the pans, the shear resist
ing diaphragms I1 and I8 are parallel. From
70 the ends of said mid portion, they taper in> oppo
site directions toward the plane of the free edges
of the associated top and bottom flanges. The
flanges I9 and 20 are fiat from end-to-end, but
the flanges 2i and 22 taper upwardly from the
75 ends of said mid portion toward the plane of the
In the mid portion of each diaphragm and
spaced equal distances upon each side of the
transverse median line thereof, coincident with
the center of the center sill of the car, is a pair of
rectangular openings 25-26 respectively. In the
finished bolster, the openings in said diaphragms '
align so that »center sill members 21 and 2l re
spectively, may pass therethrough. As best
shown in Fig. 2, each sill member isin the form of
a channel with its web arranged vertically and
with its flanges facing outwardly. In the vicinity
of the bolster, the edges of the flanges in each sill
member have a plate l29 welded thereto to give
it a hollow box-like section at this point.
' The openings 25-26 are so arranged verticallyA
that the bottom edges thereof are closer to the
members 2|-22 than the top edges are to the
members I0-2II.
l The sides of the openings in the rear half, or
pan II of the bolster body. are formed by inner
and outer upright stiil'ener plates $0 and Il re
spectively, the front edges of which are arranged
in the plane of the edges of the associated mem
bers I9 and 2i. The top edge of the inner and
outer plates I0 and 3| terminate in the plane oi'
the top edges of the openings 28 and the bottom
edges of said plates rest upon the member 2l.
'I'he outer comer of each plate I0, at the inner end
thereof, is bevelled oil' as at Ila in Fig. ’I for a
purpose later to appear. 'I'he inner plates Il are
each provided with an outer end extension 22
of a height to pass through and outwardly beyond the opening 25 for a suitable distance. These ex
tensions are connected together by a pair of hori
zontal plates ß-ßl. Said plates, which are ar
ranged in vertically spaced relation, about midway
between the top and bottom edges ofl the exten
sions, provide the means for connecting the link
of a certain associated cushioning spring gear, not
shown herein, but which is ¿conventional in the
Duryea underframe. The connecting plates Il
are each formed with oppositely facing bosses u
to receive a connecting pin whereby the link before
-mentioned is operatively connected to the bolster.
'I'he outer plates Il' of the pan I5 have no ex 70
tension corresponding to those on the inner plates.
A line of welding Il follows the bottom edges of
both plates Il where they engage the member 2|.
'I'he outer end of each plate 2| extends into the
diaphragm opening 2i but not through the same 75
‘ 3
9,188,880
midway between the top» and bottom horisontai
so as to lap'against that edge of the diaphragm y parallel portions of the members LII and Il'and
deñning the outer edge of the opening 2l as best within the planes of the brackets just above men
in Fig. 17. Another line of welding lla
lZ-ll as appears `in
2. _
openings
is then made along the edges of said plateli , tioned,'are
are
intended
for
use
in
the
These openings
and said edge of the opening and then an inner finished bolster for the passage of the usual train
line of welding lib is run in along the inside hues and brake rods (not shown)- through thev
corner as denned by the right angle surfaces of bolster. Each opening is deñned by an inturned
the said plate 8l and diaphragm I1. 'I‘hese two -flange ll which rigldiiles that part of the dia
10
welds which best appear in Fig. 1'7, provide a lap phragm in'which the opening is formed. _.
weld instead of a butt weld at this point. The
On the outer surface oi' the diaphragm near
plates n_n are welded l‘across 'the ends and its bottom edge and arranged in the plane of the
along one side as at ll to the extensions 32--32 plates II-IS, are welded short channel brackets
and diaphragm- i1.
5l and 56. Each bracket has an inclined bottom
and this inclination corresponds to the inclina
Between the inner stiilener plates, in a plane
midway between the diaphragm i1 and the plane
of the edges of the members I! and 2| is an
upright, longitudinal stiifener plate or strut
tion of the compression member 2i at this point.
The purpose of these brackets is to permit the
_ attachment of a part of the associated side bear
which is welded at its bottom edge and at its ends ing (not shown).
_
to the member 2| and to said inner plates I0 as
The sides of the openings in the front half or
indicated at Il in Fig. 7. A second upright longi ' pan II of the bolster are formed by inner and
tudinal stiifener plate or strut 39 is welded as outer plates lil and Il arranged in the vertical
at ll at its bottom and at its ends to the member planes of the inner and outer plates 31| and 4l
2l and to the inner margins oi’ said inner plates before mentioned. The inner plates l0 have inner
8| respectively. This plate I9 yis of the same end portions of the same height as the plates Il
height as the plates IMI and l1, before men
and/they are welded to the associated pan along a
tioned. so that the top edges ofY all of said plates line il following about the' bottom and up along
are in the same horizontal plane. The plate I9 is the vertical edges thereof where they engage the
formed at a pointbetween'its ends with a curved diaphragm. The outer plates Si are notched at
portion Ii. This curved portion opens into a the bottom as at 83 (see Fig. 6) so as to straddle
recess 42 in the member 2l to form one-half the , ythat part of the diaphragm defining the bottom
opening in the bolster bottom to receive the king of the sill openings and each plate has an exten
or center pin of the truck (not shown). Said sion portion M of a height approximating the
curved portion Ii extends part way up the plate full height of the diaphragm of the pan at this
3l from its bottom edge as‘appears in Fig. 3. point. The top and bottom ends of these exten
The upright stiirener plates mentioned, func
tion as shear resisting struts as is'apparent.
sions arebent outwardly as iianges or wings Il
and B1 by which certain torque arms or the bolster
and later to be described, are attached to the
.
Engaged upon .the top edges voi' the upright
plates lL-Ii, 31 _and` is is a horizontal top plate
Il. This top plate is welded t0 the top edges of
said upright plates as at Il andisalsoweldedto
bolster. These parts of said extensions above
_
the inner face of the diaphragm member l1 as at
4l. Between said top plate and the tension flange
Il and arranged in the planes of the stitlener
plates l1 and Il are other stiifener plates 46 and 41
respectively. Said plates lt--Iï have down
wardly facing end hooks which engage the upper
end portions of the outer/plates 3i but only the
hooks “a of the plate 4l appear as in Fig. 11.
These plates function as shear resisting ribs or‘
webs between said top plate 4l and the top ñange
upright stiiïener plates Il as appears in Fig. l1 at
Il. It is to be borne in mind that the plates men
tioned are welded in piace during their assembly
within the associated pan. By means of said
55 hooks “a the plates 46---41> are secured not 'only
to the member is yand top plate 43 but also to
vthe outer upright plates II-II to form a strong
rigid structure above each sill opening.
A suitable distance outwardly from the outer
plate Il, I provide in each pan an upright rib
plate Il which is welded as at 50 along one ver
tical edge and its two horizontal edges to the diaphragm I1 and to the members or ñanges I9
and Il respectively. Said
ranged substantially in or near the planes oi.' the
side bearings to form stiffening members for
the side bearings of the finished bolster. _
and below the sill openings are welded as at 6l to
the parts of the diaphragm with which they are
engaged. The inner corner of each plate 6|, at»
the inner end thereof, is bevelled off as at Gla in
Fig. 'I for a purpose later toappear.
ïBetween the inner stiffener plates 60--60 of the
rear pan, in a plane midway between the dia
phragm I8 and the plane of the edges of the
flanges 20---2ì, is an upright stiflener plate 6l.
This plate is welded at its bottom and side edges
to the bottom iiange 22 and to the plates Il
respectively. The welding mentioned appears at
10 in Fig. '7.
1
A second upright stifl'ener plate 1| is welded
as at 1 la along its bottom and at its ends to the
inner margins of the flange v22 and of the inner 55
plates 60. This plate 1I is of the same height as
the plates iß-GI and 68 before mentioned, so
that the top edges of all of said plates are in_the
samehorizontal plane. The plate 1i isformed
at a point between its ends with a curved portion
12. Said curved portion opens into a recess ‘Il
in the member 22 to form the other half of the'
opening in the finished bolster bottom to receive
the- king or" center pin before mentioned, but not
shown herein. This curved portion extends part
way up the plate from its bottom edge as appears
in Figs. 3 and 8.
'
Engaged upon the top edges oi the plates "--v
spaced longitudinally outward from each sill
89-1i and those parts of the plates 0i within
the pan 'IB is a horizontal top plate 1l. This top 70
plate is welded to the* top edges of the upright
plates as at ‘Il and _is also welded to the inner
il. Upon these brackets certain supports (not
face of the diaphragm member i8 as at 1l. Ble-_
shown) are engaged and upon which the flooring
of the associated car body to be supported by the
bolster. is secured in place. In said diaphragm
tween the top` plate 1I and the tension flange 20
and arranged in the plane of the stiñener plates 75
0n the outer surface of the diaphragm I1 and
70 opening I! in said web are welded angle brackets
4
2,132,282
69 and 1| are other stiifener plates 11 and ‘Il re
spectively. These plates include end hooks simi
lar to those 16a before mentioned and which are
welded to the upright plates SI-BI. The plates
*i1-18 i'unction as shear resisting ribs or webs
between the top plate ‘I4 and the flange or mem
ber 20 and are welded thereto as at 69. The hooks
mentioned in connection with the plates 'I1-18
appear in dotted lines as at 11a in Fig. 10. It is
10 to be borne in mind that the plates mentioned are
welded in place during their assembly within the
pan.
As best. appears in Fig. 8, the top plate 1I ter
minates at its ends in the plane of the outer plates
15 6|--6|. However, this top plate may be formed
with upwardly inclined extensions 14a beyond the
outer plates 6| and these extensions may be weld
ed at their end edges to the underside oi.' the ten
sion flange 20 as best appears in 'Hb in Fig. 9.
When the structure shown in Fig.' 9 is employed,
the plates 'l1-18 may terminate in the plane of
the plates 6|-~6| and thus be devoid of the hooks
‘Ila before mentioned or should it be desired to
retain said hooks, suitable openings or recesses
25 may be formed in the extensions ‘ila to accommo
date the passage of the same therethrough.
In Figs. 1 to 8 inclusive oi' the drawings, the
welds heretofore described are all shown as con
ventional right angle corner welds, wherein one
30 of the parts has a bevelled edge to form the weld
ing groove when said edge is engaged against an
other part. In Fig. 16 I have shown a form of
weld `which may be advantageously employed to
prevent blowing through of the fused welding
35 metal in making the welds. In said iigure assume
that the part 60a corresponds to one of the stiif
ener plates 60 and the part 69a corresponds to the
right angled plate 69. Under such conditions, the
edge of the part 69a is bevelled as at 69h and in
40 stead oi' said bevelled surface terminating as a
sharp edge, that side of said part opposite said
surface is offset to form a thickened backing
ñange 69e for‘engagement with the face oi' the
part 60a. When the weld 10a is made, the flange
45 69e prevents the fused welding metal from blow-1
ing through and behind the part 89a so that a
smooth perfect bond results, without hairline ils
sures therein, where harmful cracks may start.
A suitable distance outwardly from the outer
50 plates 6|, I provide in each pan I6 an upright
rib plate 80 which is welded as at 8i along one
vertical edge and its two horizontal edges to the
diaphragm I8 and to the members 20 and 22 re
phragm as for instance as shown in Fig. 13. In
that ilgure it is to be noted that the two pans
as a whole are made of a lighter gauge metal
and on the inside of the members Isa-2in and
20a-22a, strip plates lâh-2lb and 20h and 22h
respectively are welded.
The plates 2lb-22h are welded to the members
2ML-22a as at Zic-22e while the plates lib-20h
are welded to the members vlila-21m as at llc
and 20c respectively, 'I‘he welds are disposed -at 10
the inside corners of the respective pans and it is
intended that they be of such a cross section as
to extend a short distance beyond the inside
curve of the associated comer. This will elimi
nate any hinge action at the comers between 15
the diaphragm of the pans forming the body of
the bolster and the associated tension and com
pression members. 'I'he strips lsb-2lb and
20h-_22h project laterally beyond the edges of
the associated members I9a-2Ia and 20a-22a. 20
In the welding oi the two pans together to form
the bolster body, the edges ofthe plates I9b-2Ib
and 20b and 22b are brought into butting rela
tion. This spaces the opposed edges of the
ilanges i9a-2Ia and 20a-22a a slight distance 25
apart to expose margins of said plates. These
edges and the margins oi' the stifl'ener plates co
act to form a groove in which lines of welding
iSd-20d may be laid to not only join the said
edges together but also to join said edges to said 30
plate margins and to Join said margins together.
The plates lsb-2lb and 20h-22h extend sub
stantially the length oi' the bolster body. 'I'he
margins thereof before mentioned, which pro'
vide the bottom of the welding grooves also serve
to prevent the blowing through oi' the fused
welding metal in making the said welds iSd-_20d
which also extend substantially the full length
of the bolster body. It is apparent that with the
construction described, the required thickness ol’
stock and requisite strength may be provided in
the tension and compression members, while
using diaphragms which are >reduced in .thick
ness relative to that _of said tension and com
pression >members.
Ii' desired, the flanges
21m-_22a may be formed with lines oi' openings
to expose portions of the plates 20h-22h and
then spot welds 20a: and 22.1: (see Fig. 13) are
made in said openings to further secure said
members and plates together.
»
Instead oi’ using the'extra plates` lsb-2lb and
20h and 22h, in the forming of the pans, a slight
ly heavier gauge metal may‘be employed and
These rib plates 80 are so disposed that when the tension and the compression members may
the two pans are brought together’for welding be formed by turning portions thereof back and 55
as will later appear, they will line up with the preferably upon themselves to form the double
thickness tension and compression members
plates 49 in the pan l5 and thus coact there
with in stiifening the bolster in the plane of the Isc-Zie and 20e-22e respectively, as shown in
Fig. 14. The edges of said flanges I 9e-2le and
00 associated side bearings.
20e-22e respectively, lare welded as at ISI-2|!
In Fig. 12 there is shown a conventional trans
and 20j and 22! at the side corners of the pans.
verse section through a part of one form of the
In making said welds, it is desired that they be
finished bolster. It is to be noted from said ñg
ure that the metal in both diaphragms is oi the of such size as to lap upon the inner flat faces
of the diaphragms. In turning the metal u_nder
l65 same thickness as that in the members I9~2|
and members 20-22 respectively. The reason as a flange, this leaves the edges of each pan
therefor is that each pan is made of a gauge in a rounded condition. Therefore, when said
suitable to resist the strains fand stresses the edges are in abutting relation, preparatory to
the welding operation which joins them intoa
tension and compression members ot the fin
ished bolster are to bear. By reason of the bolster body, the said rounded edges coact to de
vertical disposition of the diaphragms, this gauge ilne a good welding groove to receive the lines
spectively.
of metal is more than sufl‘lcient for said dia
phragms. In order to reduce weight and cost,
the same thick-ness of the members |9--2l and
75 20-22 may be attained with a thinner dia
oi' welding as shown in Fig. 14.
_
In Fig. 15 is illustrated a further modified
form of structure for the box-like structure of
the body of the bolster. In said ligure, Iig-.zig
and 20g-22g indicate the tension and comprese
5
2,182,232
sion flanges or members respectively and Ilg and
|60 indicate the diaphragms of the respective
pans. It is of course understood that the ten
sion and compression members, as well as the
diaphragm of each pan, are all made of the same
gauge stock.
` Upon the top surfaces of’ the compression
members 20g--22g, there are welded as at
20h-22h., stiffener plates 20i--22i. These plates
10 are wider than their associated flanges 20g-22g
so that when arranged with their edges in abut
ting relation, this spaces the edges of the flanges
20g-22g apart to form a groove in which a line
of welding 20k is laid to join the associated parts
15 together as explained in connection with Fig. 13.
As to the members ISU-2| g, they are a trifle
wider than the members 20g-22g. Instead of
using extra stiifener plates on the underside of
the members |9g-2Ig` as in Fig. 13, it is prac
tical to make use of the bolster cover plate as
the reinforcing means. In said Fig. 15, the parts
of the cover plates are indicated at ISL-2li re
spectively, and these are spaced apart at their
adjacent edges to expose parts of the members
Isa-ZIQ and thus form a welding groove. In
this groove is laid a line of welding |9111. which
joins said cover plate parts together and to the
members I9g-2Ig. The cover plates are further
welded to the upper corners of the respective
pans as at I9n--2In respectively. With such an
arrangement, the bolster cover plate acts as a
reinforcement for the tension member as a whole
for the bolster body.
After the parts before mentioned have been
Welded in assembled relation in their respective
pans I5 and I6, said pans are brought together
with the edges of the tension and the compres
sion members of one pan abutting those of the
other pan. These edges are then welded as at
|00 and |0| respectively, and said lines of Weld
lng extend the full length of the bolster and down
the ends thereof. Of course, before these weld
ing operations are carried out, the pans are suit
ably positioned to assure the registration or
alignnlient of the plates :I0-»3| with the plates 60
and 5 .
After the two pans have been welded tog/ether
as before mentioned, a center sill guide bar 'I 02 is
positioned in each corner as defined by the outer
surfaces of the upright stiffener plates 30--30 and
60-_---60 and the top plates 43--43 and ‘I4-14 of
both pans and then lines of welding |03 are made
to secure said bars in place. These bars are each
of a rectangular cross section so as to fit snugly
in
their respective corners and they are of such
55
length as to have a considerable overlap with re
spect to the plates they engage. These bars not
only act as guides for the center sill‘members
21--28 but they assist in connecting the pans
I5-I6 together at these points. It is pointed out
that in the application and welding of said bars,
this is performed through the openings 25--26 in
the pan members which give complete access
thereto.
.
To form a bearing for the center sill member
and to brace the bottom mid portion of the bolster
parts and to tie them more securely together at
this point, I provide in the spaces between the in
ner and outer plates 30-60 and 3|-6I of both
70 pans. a member |04. This member is preferably in
the formof a lengthof channelbar. Each member
is shown herein as arranged longitudinally of the
bolster with its flanges |05 facing downwardly
and engaged with and welded to both compression
75 vmembers 2I--22 by lines of welding |06. These
flanges are of such height as to bring the web |01
thereof substantially flush with the bottom edges
of the openings 25?-26. Lines of welding |08-I 09
are made to secure the ends of said channels to
the plates 30~-60 and 3|---6|.
The upright edges of the plates 30--60 and
3|--6| respectively, are brought right to the
plane of the edges of the tension and the corn
pression members respectively, of both pans so
10
that they substantially engage.
With the edges of said plates arranged in en
gagement as described, the bevelled edges 30a and
Gla define grooves in which lines of welding 30h
and Gib are laid to weld said plates together at
their meeting edges. 'I‘he grooves 30a are acces
15
sible for welding through the sill openings in the
pan I5 and the grooves 60a are accessible for
welding through the sill openings in the pan I6.
It is preferable that said lines of welding be
made before the bars |02 and the channel mem 20
bers |04 have been welded in position.
Either before or after the pans I5 and I6 have
been welded together, I provide on the outer faces
of the diaphragms I1 and I8, above the sill open
ings 25-26 on the plane of the top plates 43, 25
the solid bars IIO and III respectively. The bar
IIO (see Fig. 10) is of a length to extend between
the planes of the upright stiffener plates 3I----3I
and is of a greater depth at its mid portion to
form opposed shoulders II2 which engage the 30
top ends of the plate extensions 32 and the center
sill guide bars |02. The bar' | I0 is welded at its
edges to the associated diaphragm I‘I.
The bar III is of such a length as to extend
between the extensions 64 of the plates 6| and is 35
welded at its edges to the diaphragm I8. The
bars ||0--|I| act to form the so-called “over
solid "stops against which certain stop shoulders
(not shown) on the sill engage at the limit of the
cushioned movement between the center sill and 40
bolster.
After the bolster has been thus far assembled,
it is turned bottom up and a center plate |I3 is
arranged in position. This plate forms part of
the center bearing between the car body bolster 45
and associated truck bolster (not shown). It is
made as a relatively thick metal disc having a
center hole I|4 which lines up with the center
pin opening in the bolster as provided by the
parts 4I---‘42 and 'l2-_13 respectively. The upper 50
corner edges of the center plate are bevelled off
as best appears in Fig. 3 to provide a welding
groove in which annular lines of welding II5 and
||6 are formed to operatively secure the plate to
the bolster.
As before mentioned, the bolster is of the kind
embodying torque resisting arms whereby the
bolster is connected either to an end sill of the
underframe or to a cross bearer thereof.
55
As
shown herein, the bolster is of the kind wherein 60
the torque arms are adapted for attachment to
the pan I6 either before or after the two pans
I5 and I6 are welded together.
y
In the present instance, said arms will be de» 65
scribed as attached to the pan I5 after it has been
welded to the pan I6 but this is not to be con
sidered in the restrictive sense.
Referring now to Figs. 1 and 3, 85--85 indicate
as a whole a pair of laterally spaced torque arms, 70
each of a truss formation and comprising upper
and lower arm members 86 and 81 respectively.
Each arm member is preferably made of angle
bar. In the case of the angle bars forming the
top arm members 86, thetop horizontal fianges 75
6
2,132,232
face outwardly and the vertical iianges face
downwardly. ’I'he arm members 86 are arranged
in a horizontal plane extending at a right angle
to the pan and the inner ends of the angle bars
thereof, abutt and are welded as at 88 to the top
end edges oi the plate `extensions 64 and to the
wings 66 thereon, before mentioned.
In the case of the angle bars forming the bot
tom arm members 81, the bottom horizontal
10 flanges face outwardly and the vertical flanges
face upwardly. 'I'he arm members 81 are each
welded at their inner ends as at 89 to the bottom
' end edges of the plate extensions 64 and to the
wings 61 thereon, before mentioned.
.
15
The arm members 81 extend upwardly and
outwardly from their inner end, toward their
outer end and have horizontal outer end parts
meeting in abutting relation with the outer end
parts oi’ the top arm members, the vertical
20 flanges of the angle bars of both arm members
being butt welded together as at 90 in Fig. 4.
At the outer ends of said arms the vertical
ñanges of the angle bars of both arm members
are ridged or corrugated as at 9| in Fig. 1.
Said outer ends of said arm members are con
nected by a transverse bracket 92. The mid
portion of said bracket is disposed in the plane
of the top surfaces of the horizontal ñanges of
the top arm members 86 and is adapted for en
30 gagement and securement to an associated end
sill 85a of the car structure (see Fig. 3).
The end portions of said bracket are bent into
downwardly offset U shape yokes or hooks 93,
the vertical portions of which are corrugated
35 as at 94 in Fig. 1 for engagement with the cor
rugations 9| before mentioned. Top and bot
tom lines of welding 95-96 serve to secure the
bracket to the arms. The yokes or hooks men
tioned receive the top flanges of the center sill
members 21-28 as shown in Fig. 4, and act as
guides therefor in the relative movement be
tween the center sill and bolster body.
To resist shearing strains in said arms, in
their torque resisting functions, I provide between
45 the converging Vertical ilanges of the arm mem-,
bers 86-81, inner and outer web plates 86 and
91 which are butt welded along their top and
bottom edges as at 98-99 to the associated edges
of said vertical ilanges as best appears in Fig. 3.
50
At the outer corners as formed by the junc
tion of theinner ends of the torque armvmem
bers 86-86 with the diaphragm I8 of the pan
I6, I provide gusset plates 96b of substantially
atriangular formation. These gusset plates, only
55 one of which appears in Fig. 1, have their right
angled edges welded to the edges of the hori
zontal flange of the associated top torque arm
member and to the bent over plate extension
wing 66 as well as tothe diaphragm I8 as indi
60 cated by the line 96a in Fig. 1. The gusset plates
96 which are disposed with their top surface
below the top surface of the torque arm member
86 and member 20 of the pan I6, not only add
a further bracing effect between the torque arm
85 members 86 and pan I6 but they serve to pro
vide a convenient portion of the bolster as a
whole to' which one end of associated diagonal
braces (not shown) of the underframe may be
attached.
70
'
In the ñanges 2|---22, just outwardly of the
plates 3I-6I and 49-80 respectively, as well as
between the sets of plates'30-3i and Sil-6i
>respectively are openings H1 for the drainage of
water from the interior of the bolster.
75
From the construction described, itis apparent
that the bolster is a welded one and is therefore.
free from rivets or bolts.
With the bolster thus made, it forms the
equivalent of an integral structure much lighter
in weight but stronger and less costly to produce
than either a cast or a riveted structure.
Furthermore, the reduced weight oi the body
bolster greatly aids in contributing to a reduc
tion in the weight of the car with which it is
to be used. 1
'
While in describing the invention, I have re
ferred in detail to the form, arrangement andconstruction of the various parts thereof. as
well as to the sequence and manner of- the steps
in installing and welding the parts in place, the
same is to be considered only in the illustrative
sense so that I do not wish to be limited thereby
except as may be specifically set forth in the
appended claims.
I claim as my invention:
20
1. A body bolster of the kind described com
prising a pair of substantially matched metallic
pans, each including a shear resisting diaphragm,
a tension member and avcompression member,
the edges of said members of the pan being 25
welded together, there'being a pair of laterally
spaced sill openings in each diaphragm, and a
bracing arrangement in each pan adjacent said
diaphragm openings, each arrangement compris
ing a plurality of transverse and longitudinal
plates welded to each other and to.parts of the
associated pans.
2. A bolster of the kind described comprising
a. pair of substantially matched metallic pans,
each including a shear resisting diaphragm, a
top tension member and a bottom compression»
member, the edges of said members of the pans
being Welded together, there being sill openings
in said diaphragms, upright transversely extend
ing stiiiener plates rising from the compression
member into substantially the plane of the top
of said openings, and means providing a box-like
section between the top ends of the stitiener
plates and the tension members and portions of
the diaphragm above said openings.
3. A bolster oi the kind described comprising
a pair oi substantially matched metallic pans,
eachy including a shear resisting diaphragm, a
top tension member and a bottom compression
member, the edges of said members of the pans
being welded together, there being a pair of lat
erally spaced sill openings in each diaphragm, a
bracing arrangement in each pan adjacent said
diaphragm openings, each arrangement compris
ing a plurality of transverse and longitudinal
plates welded to each other and to parts of the
associated pans, and means welded to certain of
the plates of the bracing arrangement in both
pans providing guides for the center sill to ex
tend through said openings.
4. A bolster of the kind described comprising
a pair of substantially matched metallic pans.
each including a shear resisting diaphragm, a top
tension member and a bottom compression mem-g
ber, the edges of said members of the pans being
welded together, there being a pair of laterally
spaced sill openings in each diaphragm, with the
openings in one diaphragm aligned with those in
the other diaphragm, stiiîening means in each
pan adjacent the openings therein and including 70
a set of upright transverse stiifener plates, a top
plate thereon and a second set of longitudinal
sti?lîener plates welded to said top plate and hav
ing parts welded to certain of said transverse
stiffener plate.;`~ and forming a box-like structure
7
2,182,232
between the díaphragms above the openings
members at the junction of said members with
therein.
5. A bolster of the kind described comprising
a pair of substantially matched metallic pans,
each including a shear resisting diaphragm, a top
tension member and a bottom compression mem
ber, the edges of said members of the pans being
welded together, there being a pair of laterally
spaced sill openings in each diaphragm, with
the openings in one diaphragm aligned with those
in the other diaphragm, stiiïening means in each
along their free edges and spacing the edges of
said tension »and compression members apart so
as to coact in defining grooves therebetween bot
pan adjacent the openings therein and'including
a pair of inner‘and outer upright transversely
extending stiffening plates, a plate secured to
15 the top edges of said stiffener plates, upright lon
gitudinal stiiîening members between and welded
to said tension member and said top plate. said
longitudinal stlffener members including depend
ing hook-like end portions engaged with and
20 welded to said outer upright stiffener plates.
6. A bolster of the kind described comprising
a pair of substantially matched metallic' pans,
said diaphragms, said stiilïening plates abutting
tomed by marginal parts of said stiffening plates,
and lines of -welding in said grooves connecting
said tension and compression members to each
4other and , to their respective stiiîening plates
10
which are also connected together thereby.
10. A bolster of the kind described including a
body comprising a pair of substantially matched
metal pans, each including a shear resisting dia
phragm, a tension member and a compression
member, the longitudinal edges of said members 15
of one pan being welded to the like edges of the
members of the other pan, there being a pair of
laterally spaced sill openings in each diaphragm,
and means secured to and providing a bracing ar
rangement for the central portion of the body
and formed to provide passageways connecting
the sill openings in both dlaphragms.
11. A bolster of the kind described including a
each including a shear resisting diaphragm, a
tension member and a compression member, the
edges of said members of the pans being Welded
body comprising a pair of substantially matched
together, there being a pair of laterally spaced
sill openings in each diaphragm, with the open
member, the longitudinal edges of said members
ings in one diaphragm aligned with those in the
other diaphragm, stiiîening means in each pan
adjacent the openings therein and including stifl
ening plates welded in place, means welded to
the stiiiener plates of both pans and to the com
pression members thereof respectively, and a cen
ter sill guide bar welded to certain only of the
stiiiener plates of both pans.
l
7 . A bolster of the kind described comprising
a pair of substantially matched metallic pans,
each including a shear resistingl diaphragm, a
tension member and a compression member, the
40 edges of said members of the pans being welded
together, there being a pair of laterally spaced
sill openings in each diaphragm, with the open
ings in one diaphragm aligned with those in the
other diaphragm, stiiîening means in each pan
adjacent the openings therein and including a
set of transversely extending upright stiffener
plates, a top plate welded thereto and longi
tudinally extending stifîener ribs between the
top plates and tension members and Welded to
the same, a sill supporting member secured to
the compression members of both pans between
the stiiîener plates of each set thereof and Welded
thereto, and a sill guide bar Welded to certain
of the stiffener plates of both pans and to the
top plates of both pans.
8. A bolster of the kind described comprising
a pair of substantially matched metallic pans,
each including a shear resisting diaphragm, a
tension member and a compression member, the
edges of said members of the pans being welded
together, there being a pair of laterally spaced
sill openings in each diaphragm, with the open
ings in one diaphragm aligned with those in the
other diaphragm, stiffening means in each ~pan
adjacent the openings therein and including a
set of transversely disposed welded upright stiti
ener plates, a top plate Welded thereto and longi
tudinally extending stiiîener ribs between the top
plates and tension members and welded to the
70 same, and including end portions welded to cer
tain of the upright stiiiener plates.
9. In a bolster of the kind described a pair
of substantially matched pans each including a
diaphragm and tension and compression mem~
bers, a st_ii’fening plate welded to each of said
metal pans, each including a shear resisting dia
phragm, a tension member and a compression
of one pan being welded to the like edges of the
members of the other pan, there being a pair of
laterally spaced sill openings in each diaphragm
and each opening having inner and outer upright
edges and top and bottom horizontal edges, means
secured in and providing a bracing arrangement
for the central portion of the body and formed
to provide passageways connecting said sill open
ings, and means welded to the outer surface of
each diaphragm and partially overlapping the
top end portion of both sill openings in each dla
phragm.
'
12. A bolster of the kind described including a
body comprising a pair of substantially matched
metal pans, each including a shear resisting dia
phragm, a tension member and a compression
member, the longitudinal edges of said members
of one pan being welded to the llke‘edges of the
members of the other pan, there being a pair of
laterally spaced sill openings in each diaphragm
and each opening having inner and outer upright
edges and top and bottom horizontal edges, means
secured in and providing a bracing arrangement
for the central portion of the body and formed
to provide passageways connecting said sill open
ings, means welded to the outer surface of the
diaphragm of one pan and partially overlapping
the top end portion of both sill openings in said
diaphragm, and means arranged perpendicular
and welded to said diaphragm substantially flush
with the outer edges of said openings in said dia
phragm and adapted for the attachment of as
sociated torque arms thereto.
13. A bolster of the kind described including a
body comprising a pair of substantially matched
metal pans, each including a shear resisting dia
phragm, a tension member and a compression
member, the longitudinal edges of said members
of one pan being Welded to the like edges of the
members of the other pan, there being a pair of
laterally spaced sill openings in each diaphragm,
means secured to and providing a bracing ar
rangement for the central portion of the body,
said means being formed to provide passage
ways connecting the sill openings in both dia
phragms and being further formed in its bottom
to provide a king pin recess that registers with an
opening formed in the abutting edges of the com 75
8
2,132,232
pression members of both pans, and means pro
viding a center plate secured to the bottom sur
face of said compression members of both pans
and having an opening therein that registers
with said opening in said compression members
and said king pin recess.
14. A bolster of the kind described including a
body comprising a pair of substantially matched
metal pans, each including a shear resisting dia
10 phragm, a tension member and a compression
member, the longitudinal edges of said members
of one pan being welded to the like edges of the
members of the other pan, there being a pair of
laterally spaced sill openings in each diaphragm
15 and each opening having inner and outer up
right edges and top and bottom horizontal edges.
means secured in and providing a. bracing ar
rangement for the central portion of the body
and formed to provide pasageways connecting
said sill openings, means arranged perpendicular
and welded to the diaphragm of one of said pans
substantially flush with the outer edges of the
openings therein, means providing a torque arm
Welded at one end to said perpendicular means
and laterally spaced gusset piatœ welded to the
said torque arms, said diaphragm and saidl per
pendicular means respectively and adapted for
the attachment of diagonal braces thereto.
O'I'HO C. DURYEA.
15
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 516 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа