close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2406199

код для вставки
Aug. 20, 1946. v
‘
c. J. w. CLASEN
'
cm mucx
F119;‘ NOV. 4, 1943
2 Sheets-Sheet 1
4/
/
.2
INVI-INTOR. ‘
Patented Aug. 20, 1946
2,406,199 r
umrso rsTArss PATENT‘ omegtz
CAR TRUCK » »
‘Claus . Werner Clasen, Chicago, Ill., assignorto
American Steel Foundries, Chicago, Ill.; acor
-poration of New Jersey
-
Application , November 4 ,1943, SeriallNo. 508,878 / ’
'
1
' '26 Claims.
.
V
(01105-4197)
a
2
~
,
My invention relates to a railway, car truck and
more particularly to a novel spring support for
members, 2 and 4 ‘and the spaced ‘columnsfli, 6,
de?ning therewith‘a ‘bolster opening 6,,and
the truck bolster.
spaced window openings l0, l0.
‘
. ‘
s
, “
As best seen in ‘Figures 3‘ and 4, the compres
sion member 2 is of box-section.abovethe‘bolster
The principal object of my invention is to pre
vent harmonious oscillations of, the’ bolster sup
opening, and the tension member 4 is of box
porting spring group by supporting the springs‘in
section therebelofwwith the inboard and, outboard
such a manner that the compression load is “out
of ratio” to the vertical movement of the bolster
for the entire range of bolster loads.
webs l2 ‘and I4 and the‘ top and bottom chords
I6 and I8. ‘A wear plate20 is seated on the top
truck such asv abovedescribed, inwhich certain
means, such as welding; v Seated on the‘ plate 20'
Another object'of my invention is to provide a 10 chord l6’and secured thereto, by any convenient
is a rocker 22 comprising concave‘ bearing surf
faces 24, 24 for slidable ‘engagement with spring“
caps or plates 26, 26, the-lower‘ surface of the
rocker 22 being arcuate' for‘ro'cking engagement
springs of the bolster supporting group have a‘
relatively great length of travel with respect to
other springs of the group, means being inter
posed between the spring group and'the side
frame for causing a greater rate of'deflection in
the long travel springs than in‘ the other springs.
My invention comprchends a‘ side frame of
novel form comprising tension and compression
members and spaced, columns de?ning therewith 20
as at 28 (Figures 3 and 4) with the wear plate
20. At opposite sides of the holster opening, the
side frame is ‘formed with lugs 30, 30 received
within complementary recesses 32, 32 in the.
rocker for maintaining the latter in assembled
relationship with the side frame while, at the 1
same time, accommodating the rockingor tilting
ably seated on the tension member in said opene
action of the rocker upon the plate 20 as herein
ing and having means ‘cooperating with means
after described.
‘
‘ ’
on the side frame at opposite sides of the bolster
opening for maintaining’ the side, frame and 25 Supported on the spring plates 26, 26' area pair
‘ a bolster opening, and a spring seat rocker rock
rocker in assembledrelationship._
,
‘
of outboard coil springs 34, 34 and a pair of in-‘
\
board springs 36, 36,- theplates 26, 26 being
provided with suitable positoning means38, ,38 for
Injmy novel side frame the rocker is ‘so ar
ranged that its'contact point'with the side frame
under empty car conditions is close to the center
said springs. As illustrated, each spring 34 and
line of the long travel ‘springs, whereby the
30 36 is a composite spring comprising a pair of
lighter bolster loads are‘ carried 'mostly by ‘ the
long travel springs, and as‘ the bolster loads are
telescoped coils, but it will beunderstood that,
if desired, 'each of these springs may be‘a single
increased, an increasing proportionv of the load
coil spring.
is placed upon the short travel springs. ,
In the drawings}
1
' ,
'
>
‘ '
Figure l is a composite View, of a railway car
_ truck embodying my invention, the left half of
Figure 1 being a side, elevation taken from the
outboard side of they frame and the right half of
this ?gure being a. side elevation taken from the 4 l)
inboard side of the frame with the bolster shown
Figure 2 is a fragmentary top view, of my novel
truck, the left of Figure 2 being a'top plan ‘view
and the right half thereof being a sectional view
through one of the side frame columns with the
bolster removed.’
'
'
'
Figure 3 is a sectionalview takenin the trans
verse vertical plane'indicated by, vtheli‘ne 3—3
of Figure l, with thespring group and aportion
of the bolster shown in elevation, and ‘Figure 4'
is a sectional viewlcomparable to Figure 3 but
illustratingmy novel truck under loaded‘ car,
Describing my invention. in detail, the side ,
frame comprises the tension and compression
v
’
,_.
erally box-like form and comprising top and bot
tom chords 42 vand 44 and the spaced side walls
46, 46, the bottom chord 44 terminating adjacent
the longitudinal center line .of the side frame and
merging with the wcb48 extending transversely
of the bolster and substantially parallel to the
outboard web 50 thereof.
Y in section;
'
Supported on the springs 34 and 35 is a, bolster
generally designated 40, said bolster being of gen- .
‘
I
'
'
vAs clearly illustrated in Figures 3 andl‘l, the
outboardsprings 34, 34 are considerably longer
than the inboard springs/36, 3‘6 and seat as at‘
52 against the top chord.42 of the bolster, the
inboard springs 36, 36 being seated at 54 against
the bottom chord 44 of the bolster, the outboard
springs 34, 34 having a relatively great length‘ of
travel with respect to the inboalid'springs 36, 36.
It will‘ be, understood that this differential in the
lengthof travel may be achieved, if desired, by
‘providing outboard springs 34, 34 of relativelyv
small capacity with respect tothe inboard springs
36, 36,.with the bolster and springs‘so arranged
2,406,199 a
3
4
.
that all of the springs are of the same length.
‘ However, I have preferred to utilize springs of the
same capacity but of different lengths with com-1
pression ratios proportionate to their length.
Each side wall 46 of the bolster is provided with
operating with means on said rocker to maintain
the latter in assembled relationship with said
frame, and a bolster supportedfrom said springs
and having guide means-cooperating with said
‘columns, and means interposed between said
inboard and outboard guide lugs 56 and 56 for ‘ springs‘ and said rocker for preventing bending,
cooperation with the adjacent column 6 to main_
ofsaid springs during relative tilting movement
tain the side frame and bolster in ‘assembled
of the rocker with respect to the frame, said last
relationship._
>
/
.
‘
I mentioned means comprising spring plates slid~
Referring now to Figures 3 and '4, it will be seen 10 ably mounted on concave surfaces atop said
that these ?gures are similar except that Figure
rocker, the axes of the springs of one of said
3 illustrates the bolster under light car loads‘,
pairs being disposed ‘at one side of the rocking
under which conditions the contact between the
axis of said rocker andthe axes of the springs
rocker and the plate 20 is adjacent the ‘vertical .
ofvthe other pair being‘disposed at'the opposite
15 side ofv said rocking axis.
center lines of the outboard springs 34, 34.
' 1
It will thus be understood that under light car v
3. In a railway car truck, a side frame com
most of the bolster load is carried by the outboard
prising spaced columns and an intervening bol
springs, whereas under loaded car, as illustrated
ster opening with a ?at face at the bottom there
in Figure 4, the inboard short'travel springs 36;
of, a rocker having an arcuate surface rockably
36 'will cause the rocker to tilt, whereby its con 20 seated on said face in said opening, a pair of in
tactwith the side frame is at approximately'the
i _ longitudinal center line thereof.
Thus it will -be_understood that as the‘ bolster
loads increase, a greater proportionvof ‘the load
is transferred to the inboard short travel springs
36, 36. By means of this novel arrangement the
rate of de?ection for the long travel springs 34,
board and a pair of ‘outboard springssupported
on said rockerysaid outboard springs having a
greater length of travel than said inboard springs,
means on said'frame cooperating with means on
25 said rocker to maintain the latter in assembled
relationship. with said frame, 'and a bolster sup
ported from said springs anclhaving guide means
34 is greater than the ratev of de?ection for the,
cooperating with said columnsgsaid'rocker being
short travel springs 36, 36. It maybe noted that
formed and arranged so that its point of contact
bending of the springs as a result, of the tilting 30 with said frame is at approximately‘the longitu
movement of the ‘rocker on the tension member is:
dinal center line ‘thereof under full static bolster
substantially prevented‘v by. the slidable engage-1
ment of the spring plates 26, 26 with the concave‘
bearing surfaces 24,24 on the top of the rockeni
load."
'
"
"
"
"
'
'
4;. In a railway car, truck, a side frame com
prising spaced columns and an intervening bol
and it will be understood'that sliding of the plates 35 ster opening with a ?at ‘face at the bottom there
26, 26 on the ‘surfaces 24, 24 may be expedited'by§
of,‘ a rocker having an‘ar'cuate surface'tiltably
any, suitable lubricant. . A comparison ofFigureg§
seated ‘on "said; face‘ingsaid vopening, the upper
3 and 4 clearly illustrate the manner in which‘
ends ofsaid surface" beingdisposed at the inboard
thespring plates 26, 26 slide on the rocker sur-1
and outboard sides of ‘said rocker, a pair of in-v
faces 24, 24 as the rocker tilts inboardly’and out 40 board and a pair‘ of outboard springs [supported
boardly during vertical oscillations of the bolster.
from said, rocker, one of said pairs having a
It is to be understood that I do not Wish to be
greater length of travel than the otherthereof,
limited by the exact embodiment of the device.
shown which is merely by way of illustration and
not limitation as various and other forms of the
device will, of course, be apparent to those skilled
' inthe art without departing from the spirit of the ‘
invention or the scope of the claims.
- V I
claim‘:
‘
means on said frame ‘cooperating'withmeans on
said rocker to maintain the latter. in assembled
relationship with said framenand a bolster sup
ported from said springs and having guide means
cooperating with said columns, and means inter
posed between said springs and said rocker for
preventing‘bending of said springs during relative
1. In arailway car truck, a sidefframeyc'om-Q5o tilting movement of the rocker‘ with respect to the
prising spaced columns and an intervening bol- 1'
ster opening, a rocker 'rockably seated on said,
frame in said opening, spring plates slidably‘
frame.
'
'
»
5. In a railway'cartruck, aside ‘frame com
prising vspaced columns and an intervening ,bol-,
mounted on concave surfaces atop said rocker,
ster opening, a rocker rockably seated on said _
a pair of inboard and a pair of outboard springs 55 frame in said openinghsaid rocker being rock
seated on/r’espectivecaps, said outboard springs ‘
able on an axis extending longitudinally of vsaid
having’a greater‘length (of travel'than said in
frame, spring plates slidably mounted on concave
board" springs, means on said frame at opposite
surfaces atop said rocker,_apa_ir of inboard and’
} sides of said opening cooperating with means on
a pair of outboard'springsseated on- respective,
said rocker to maintain the latter in assembled
caps, said outboard, springs having a greater
3 relationship with said frame, and a bolster sup
1 ported from said springs and having guide means ‘
; cooperating with said columns, said’rocker being ,
‘ formed and arranged so that its point of contact ‘
j 'with said frame is at approximately the long'i-é
1 tudinal center line thereof under full static Vbol- j
;
ster load.
'
"
‘
‘
length of travel than'saidinboard springs,.means
on said frame at opposite sides of said opening
cooperating with means'on said rocker to main
tain the latter in assembled relationship with said
frame, and a bolster supported from said springs
and having guide means cooperating 'with said
‘
columns.
2. In a railway car truck, aside frame com- ;
prising spaced columns and an intervening bol- ,
j ster opening with a ?at surface at the bottom
5 thereof, a rocker tiltably supported in‘ said frame
Q on said surface, a pair of inboard and a pair of .
j outboard ~springssupported from said rockenone 1
I of said pairs having a greater length of travel 1
than the other thereof, means on said frame vco
a
»
I
.
6. In ‘a railwayv car, truck, a side frame corn
prising spaced columns and an intervening bol
ster opening, a‘ rocker having a substantially con
vex surface curved transversely of said frame'and‘
rockably seated on said frame in saidv opening,
spring ‘plates slidably mounted on concave sur- '
faces atop said rocker, a pair of inboardand a
75 pair of outboard‘springs'seate'd on respective caps,
2,400,199
5
6
'
.
surface seated on a flat surface of' said frame, ‘
said member. being formed and arranged so that
its point of contact with said flat‘ surface is at
saidoutboard springs having: a ‘greater length‘ of '
travel than said inboard springslugsformed on
said frame at'the lower extremities of said col
approximately the longitudinalcenter line there; ' Q
umns,_ said lugs being received within compl'eé,
mentary openings in said rocker for ‘maintaining
the latter in assembled relationship with? said
ofunder full staticv bolster load,jand' means for,"
interlocking said"frame*and said rockermeans
while permitting, a rocking action of thelatter
frame‘,v and a bolster supported from 'saidlsprings.
'7. In a railway car truckraside‘frame com
againslt'said‘flat surface.
,
f
'
‘
'
"
12,111 a railway car truck, a side frame,. a}
ster opening, a rocker having an arcuate surface 10 spring group supported'from said frame and ‘com;
prising spaced columns‘ and an intervening bol-‘
prising a long‘tra'yel‘v spring and a shortv travel ‘
curved transversely of said frame‘and rockably
springua bolster supported on. said group, and,
rocker means‘ interposed between‘ said group and
said frame, saidfrocker means comprising a rocker "
tiltably ‘seatedvon‘a flat surface ‘of'said frame,‘'j
seated thereon in {said ,opéning, .a pair of inboard
and a pair of outboard springs supported on said
rocker,said outboard springs having ,a‘greater
length of travel than said inboard springs, means, 15
on said frame ‘at opposite sides‘ of, said opening ; meansfor‘interloclring said frame‘ and‘sjaid rocker}, -‘
‘means while‘ permitting a'rocking ‘action of the
cooperating with means on said rocker ‘to main
latter, andyspring vcaps slidably mounted on con-j
tain the latter in assembled relationship with said
cave surfaces"atop‘said ‘rocker, said caps afford?
frame, and'a bolster‘, supported ‘from said springs
and having guide means cooperatingjwithsaid 20 ing‘seats’ for respective of said springs'the ver-‘
columns.
‘
“
‘
,
,
I
tical axis of therespective'springsintersecting -
_
, said frame at opposite‘sides of the point ‘at which
8. In a railwayycar truck, ‘aside frame com
prising spaced columns'jand an interveningbol
it engages said rocker.
,
,
13. In a, railwayv cartruck, a side frame,‘ a
ster opening,la flat surface onsaidframe between
said columns, a rocker rockably ‘mounted on said
surface‘ in said opening for rocking movement
spring group supported'from said frame and com
prising a long'travelspring and a'short’travel
about an’ axis extending'longitu'dinally of said
frame, spring plate's‘slidably,mountedon concave
rocker means interposedbetween saidgroup and
springrabolster supported from said group, and
said frame, said,‘ rocker _means being ‘tiltably
surfaces atop said rocker, a pair of inboard and a
pair of outboard springs'seated ‘on respective caps, 30 seated on said frame and interlocked therewith by
said outboard springs having a greater length of
means of spaced lugs .on said framel'received with
in complementary‘ recessesin said rocker, said
travel'than said inboard springs,,means on said
frame and said rocker’ for, maintaining the ‘latter
in assembled relationship with'said frame, and
a bolster supported from said springs. ‘
,
,
springs beingso arrangedthat their vertical axes '
, arev disposedgat oppositeisides of thetilti'ng' axis
35
9.v In a railway car truck, a side frame ‘com
of said rocker means.
I, .v
I.
;
,
,
'14. In a railway car truck,asidenframe mem
ber, comprising I spaced column-s and an interven
prising spaced columns and an intervening bol
ster opening, a ?at surface on said'frame between
ing bolster opening, arocker member. interlocked
said columns, a rocker having an arcuate surfacev
with said columns,- an. arcuate surface on‘ one, of,
said members bearing against .a fflatsurface: on,
rockably seated'on said first-mentioned (surface
40
in said opening, a pair of inboard and a pair of
the other member to ‘afford a- rocking action of'
outboard springs supported on said rocker, said
outboard springs having ‘a greater length oftravel
said rocker member, spring, means comprising
springs of different .capacity'jsupported by said,v
rocker member and having their longitudinal axes
disposed respectively at opposite sides ofthe rock
than'said inboard ‘springs; meanson said frame
cooperating with means on said rocker to main
tain the latter in assembledrelationship' with said
ing axis of said rocker‘ member,‘ a bolster sup!- ‘
frame,vand a bolster supported from saidsprings
and having guide means coop?l‘ating with [said
ported'by said spring means, and means for inter;
columns, the longitudinal axis of the respective '
1-5. In a railway car truck, a side frame mem-v
ber, a rocker member, one of said members hav- >
locking said bolster and said‘ columns.
pairs of springs intersecting said frame at oppo_-'
site sides of the point ‘at which it engages said
rocker.
'
I
‘
r
I,
‘
a
, .. , '
ing an arcuate surface bearingagainst. a substan;
tially ?at surface of the other member to a?ord
‘
10. In a railway car truck, a side frame com
a rocking action'yfor saidrocker member, spaced
prising spaced columns and an intervening bol;-‘
spring means mounted. on said rocker member,
one of said spring meansbeing of greater ca
ster opening, a ?at surface on saidlframe be-'
tween said ‘columns, ‘a rocker tiltably supported
on said surface‘in said opening forv tilting move¢
ment about an axis extending longitudinally of
said frame, a'pair of inboard and a pair of .out
board springs supported from said rocker, oneof
pacity' than the otheraa bolster supported: by saidv ,
spring means, the respective spring means being
so formed and arranged that their vertical axes
60
said pairs having a greater length of travel than '
the other thereof, means on saidframe cooper
ating with means on said rocker to maintain the
are dispos’edat opposite sides of the rocking axis
of said rocker member, and means for. interlocks
ing said frameandrockerrnembers while accom
modating said'rocking action.
I
Q
I 16. In a. railway car truck, a side frame mem
latter in assembled relationship with’ said frame,
her, a spring group supported therefrom and com
and a bolster supported‘ from said springs and 65 prising a pair of springs, one having greater-ca
having guide meansjcooperating ‘with ,said' col-‘
pucity than the other, a bolster member supported.
umns.
by said group, and means interposed between‘ said .
group and one of said members for accommodat- ,
11. In a railway‘cartru‘ck,alside frame, a
spring group supported from said frame and com
prising-inboard andjoutboard springs‘, 'one of
which is a long travel spring and the other-of
which is a short travelspring, a bolster supported
on said group, and rocker means interposed be
ing under certain conditions a greater rate of de
?ection in one of said springs than in the other;
~ said ‘means comprising‘a rocker in abutment with;
said one member along arcuate and flat_inte_r-‘
engaged surfaces, one of said surfaces being diS-f
tween said group and said frame, said rocker
posed on said‘one member and the other of said
means comprising a member having an arcuate 75 surfaces being disposed on the rocker, and spaced
2,405,199
7
,
means at; opposite sides of said surfaces respec
§ tively‘and spaced therefrom for maintaining said
umns and having an arcuate surface tiltably
rocker infassembled' relationshipwith said one
member while accommodating a‘ rocking _ action
of s'aidrocke'r upon‘said surfaces, each of said
spaced means comprisingv interengaged », .lug and,
;
ster opening, a member interlocked with said cola
seated ‘on said frame atthe bottom'of said open-1
‘ ing,said surface curving upwardlyltowar'd oppo
; site ends of said member, a' spring seated on said
' member'adjacent each of said ends thereof, one,
ofsaid'smingsv beingjof greaterj capacity‘?than the
other thereof,v whereby ‘compression of said
recess means. i, ‘
, ‘17; In a railway car truck, asidelframei'mem
springs causessa'idfmember to tilton :saidsllrface,
and a bolster supported by‘ said springs and inter/5.
locked with said columns.
‘ ' her, a spring group supported therefro'mfand'co'm
prising'a plurality of springs; certain of; which
have greater capacity than others thereof“ a 5911'.
ster supported from said springs, ,ahdr'nearisbIi-k
tirely‘spaced from the bolster and 'operatively as-I
. 22'. In ‘a raiIWaybartruck, a side frame com-,
prising spacedcolumns andj'an ‘intervening bol-,
sociated ,withlsaid springs‘ for accommodating a 1 ster opening, a member interlocked, with said col,_-.,
, greater rate of deflection for said greater capacity, l5 umns "and having an arcuate- surface tiltably
springsthandffor said other springs, said means
seated‘ onsaidframe fat the bottom of said open-,
comprising" a \ rocker member interposed "between
ing,_fsaid surface curving‘ upwardly ' toward ‘oppo
said springs 'andisaid frame member, aniarcu'ate,
site ends of said membenja spring'jseated on said
surfaceo'n one of said ,rnemb'erslbearing against
member adjacenteach of said endsv thereof, and a
a flatisurface on the "other membe'rfto accom-_ 20‘ bolsteif'supported by said ‘springs and interlocked
imodate a rocking action offsaidrocker member,
with ‘said columns, one of said springs being of
iandmea'ns for interlocking said members with
greater lengthvthan the other and, being'hou'sed
each other while permitting arocking action of ’
at its upperyend within said bolster. "
said rocker member.v
In a railwayv car truck, aside frainacom-v‘
prising a?at rocker seat, a rocker member with
.
.
‘
._
v
a
18'. In‘ a railway. ‘car’ truck, a; side-yfrarne,v a g5
spring group supported rrom‘sam; frame and com '='
prising a long travel ‘spring and'ya‘ short travel;
spring, a ‘bolster supported from- said group, ‘a ;
rockerv interposed betweenrsaidfsgroup and said “
frame, said- rocker comprising an arcuate bottom 30
surface bearing against ~a ‘?at, surfaceon' the‘
frame andjcur'ving upwardly toward the ends'of
asubstantially convex surface bearing against
said seat, spring means comprising two coil
springs ,tmounted von'said member, one of said,
springs being‘ of relatively great, capacity, a b01~
ster supported byrsaidsprings, said member being
1 so formed‘and arranged that its point of contact _
with said seat is entirely disposed intermediate
said rocker, each of said springs'being seatedpn‘ . ‘ the points at which the verticalaxes of respective
said ‘rocker 'adjacentfone'of‘said ends thereof,' - springs intersect said frame, .and,means for inter
' whereby compression ‘and expansion 'of said group‘ 35 locking said frame and saidrocker while permit
causes said'rocker to tilt ‘on s‘aid'arcuate surface,
ting a rocking‘action of the latter against said
and means for interlocking Isaid’frame and said
seat;
'
'
v
'
'
e
rocker while permitting: vsaid‘tilting offthe rocker;
24‘. In a railway car truck, a sideframe with a,
, 19. In, aranway c'ar"ftruck,' a side frame," a ' ?at seat, a‘ member having a substantially convex
spring group supportedfro‘mxgaid frame and come 49 surface bearing against said seat,vv said surface
jprising' a ‘long travel spring ‘and a‘ short‘ travel
being (curved, transversely ofsaid frame, inboard
spring, a bolster supported from‘ said ‘group, 'a
iro’ckerv interposed‘between said group and said‘
frame, said rocker comprising an arcuate bottom
and outboard spring means supported ‘by-said
member, oneof said spring means being of greater
P capacity than the other, abolster'supportedby
‘surface bearing against-a r?atsurface 0n the 4;? said spring means‘, and means interlocking said‘
frame and curving upwardly toward the ends'of j frame and said .member I while accommodating
said rocker, each of said springs being ‘seated on 1 tilting movement of the latter against said seat.
said v‘rocker adjacent- one-"of sai'djends thereof; k 25‘. In a railwaycar truck, aside frame having
’ lwhereby compression andexpansi'onof said group 1 a ?attsurfac'e, a memberrockably seatedon-said
‘causes said rocker to tilt on ‘said arcuate surface 59 surface, spaced springmeans mountedon said, ’
thereof, said rocker beingso formed and arranged
that itspoint‘ofcontact'with said framefis at
, ‘ member,’ one’ of said spring means being of greater
‘approximately1 the longitudinal’ center > line there
‘of'under full, static bolster mad, and 'm‘eans for
, said springmeans, the respective spring, means
, being so formed and arrangedthat their verticalv
, capacity than the’ other, a bolster supported by
interlocking said frame and, said rocker against: 55 axes aredisposed at opposite sides of the rocking
relative movement inboardly andoutboardly of
the framefsaid: means "accommodating a rock;
ing‘action of said rocker on said arcuate surface
‘thereof.
‘
'
1' axisof said member, and means for interlocking
} said'frame and said member/,whilepermitting a
‘ rocking, action of the latter.
r
t 20.- In a side frame for a railway car ’truck,'a 60
‘
I
‘
frame member comprising a ?at iseatya rocker
?with'an arcuate‘ bottomsurf'aoe bearing against
said seat, said surface curving‘upwardly toward
the ‘ends of said rocker, iabolster-supporting
spring mounted atop said rocker adjacent each
of said'ends ‘thereof, one of 1said ‘spring-shaving
‘greater capacity than the ‘other thereof, "whereby
loading of said springs causes said- rocker to'rock
,
,
,
26; In a railway car truck, a side frame having
a ?at surfaceja member rockably seated on said
surface, spaced spring means mounted on said
member, one of ‘said spring means being of greater ‘
capacity than ‘the other, abolster supported by I
said spring means,‘ the: respective spring means
5 being so formedandarrangedthat their vertical‘
3 axes are disposed’ at opposite sides of the rocking
axis of said member, said member being so formed a
‘ and arranged that its pointof contact with said
on said surface, and means for interlockingsaid 1 frame isat approximately {the longitudinal cen-a
rockerwith said frame member'against' relative
ter linethereof under'full static: bolster load, and,
inboard and outboard movement other than ‘the 1 7O" means
for interlocking said frame and said mem
rocking movement of said rocker. ~~
_
1 ‘21'.'In‘ a railway car truck, a side frame com"
-
prising-‘spacedcolumns and'jan intervening bol-'
‘ l ber while permitting a rocking movement, of the
‘ latter.
,
cLAU's. J." WERNER cLAsEri. 1 ,
Документ
Категория
Без категории
Просмотров
0
Размер файла
946 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа