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Патент USA US2406862

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Sept. 3, 1946.
H. w. s'rER'rzBAcH
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>SIDE FRAME RoR RAILWAY CAR TRUCKS'
Filed Nov. 29, 194s
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2,406,862
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Sept. 3, 1946.
H. w.> s'rER'rzBAcH
2,406,862
SIDE FRAME FCR RAILWAY CAR TRUCKS
Filed Nov. 29, 1945
2 sheets-shea 2
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Patented Sept. 3, 1946
2,406,862
UNITED STATES PATENT oFElcE
Harry W. Stertzbach, Columbus, Ohio, assigner to
The Buckeye Steel Castings Company, Colum
bus, Ohio
Application November 29, 1943,.Seria1 Nu. 512,191
6 Claims. (Cl. 105_20.6)
l
This invention relates to railway car trucks
and more particularly to cast metal side frames
for such trucks.
'
»
An object of the invention is to provide a
novel construction whereby the stresses will be
more evenly distributed than in the side frames
2.
l `sion member where it joins the journal box.Í At
this point', it will be noted in Fig. "I, that the side
wall I4 of the inner lug of the journal `box is
spaced from the inner wall I8 of the box.
The spring seat member, in accordance with
my invention, is formed in hollow box section,
heretofore known, and deformations of the jour
as shown in Fig. 3, with the top plate I5 wider
nal box or breakage of the members of the frame
than the box section portion, and provided with
will be eliminated.
marginal upstanding inner and outer ñanges I9
With the foregoing object outlined and with l I) and 2l!Y for retaining the springs, not shown.
other objects in View, which Iwill appear as the
An alternative means for joining the bottoms
description proceeds, the invention consists in
of thediagonal tension members and the spring
the novel features hereinafter described in de
seat member is illustrated in Fig. 8, in which the
tail, illustrated in the accompanying drawings,
bottom 2I of each tension member forms an ogee
and more particularly pointed out in the appended
curve, being shaped convex downwardly under
claims.
‘
each of the bolster columns 22 and changing to
In the drawings:
Fig. l is a side elevation of one-half of a side
frame, including‘my improvements, it being un-derstood that the other half is identicalV in con
struction with the half illustrated.
Fig. 2 is a bottom plan View of the same.
Fig. 3 is a fragmentary transverse vertical sec
tional view taken ongthe line 3_3, of Fig. 2.
Figs. 4 and 5 are sectional views, respectively,
concave downwardly in a direction toward the
journal box or the end of the frame. Such con
structions strengthen the connection between
the diagonal tension members and the spring seat
member.
.
The columns 22 have parti~cylindrical surfaces
23, interrupted by medial vertical guide vflanges
24, adapted to cooperate with correspondingly
, shaped surfaces on the bolster, not shown.
taken on the lines 4_4, and 5_5, of Fig. 1.
The upper portion of the bolster opening 25 is
Fig. 6 is a top plan View of the journal box
widened for a distance A below the top 26 of
portion of the side frame.
the frame to permit the passage of bolster lugs,
Fig. 7 is a fragmentary vertical sectional view
not shown.
on the line 1, 1, of Fig. 6.
30
From the foregoing, it is believed that the de
Fig. 8 is a fragmentary side elevation of a mod
ification.
In accordance with the present invention, the
diagonal compression member 9 and the diagonal
tails of my improved side frame and the con
structional advantages thereof will be readily un
derstood by those skilled in the art, and it will
be apparent that changes may be made in the
tension member IIJ are both of inverted channel
side frames illustrated without departing from
form. The inclined top plate or web II of the
the spirit of the invention, as expressed in the
tension member gradually increases in thickness
following claims:
toward and merges with the top plate I2 (Fig. '7)
What is claimed and desired to be secured by
of the integral journal box I3, where the top
Letters Patent ist
plate of the boX joins the side wall It! of the 40
1_ A railway car truck side frame comprising
inner lug of the box and forms a continuous
diagonal compression and tension members con
connection between this point and the top plate I5
verging toward an end of the side frame, a jour
(Fig. 1) of the spring seat member I6. For
nal box integral with the outer ends of said
strengthening purposes, it is advantageous to
members and having a substantially flat hori
have the web of the diagonal tension member 45 Zontal top, said journal box having inner and
join the top of the journal box at the point where
outer internal lugs provided with side, walls
the wall of the inner brass lug also joins the top
spaced kfrom the side walls of the journal box, the
of the box.
tension member having an inclined top web
As the side frame is of cast metal, my con
which terminates at and merges with the top of
struction contemplates the use of symmetrical 50 the journal‘box at the place where the upper
cores (not shown) inside of the box during cast
end of the wall of the inner lug merges with the
ing, the beveled corners Il (Figs. 6 and '7) being
top of the box, said web gradually increasing in
used at both the inner and outer corners of the
thickness toward the top of the journal box, the
box, with the width of the beveled cores being
top of the journal box having internal beveled
equal to the outside width of the diagonal ten 55 surfaces arranged at opposite sides of the lugs
2,406,862
3
4
and spaced from the front-l and rear ends of the
5. A railway car truck side frame comprising
journal box, the beveled surfaces terminating
substantially at the inner surfaces of the lugs,
and the beveled surfaces adjacent the inner lug
integral compression, tension, and journal box
members, said compression and tension members
converging toward the journal box, and the com
being in substantially the same plane as the Ul pression member having a top web, said journal
box member being provided with inner and outer
bottom surface of the web of said tension member.
substantially vertical lugs which are substan
2. A railway car truck side frame lcomprising
tially in alignment with the compression and
compression and tension members, each of in
tension members longitudinally of the frame,
verted channel shape, said members converging
toward an end of the frame, a journal box ar 10 said lugs having side walls spaced inwardly from
ranged at said end of the frame and integral ' the side walls of the journal box, the web of the
tension member merging with the top of the
with said members, said box having a top and
journal box Where the side wall of the inner lug
the tension member having a top web merging
merges with the top of the journal box, the top
with said top, the bottom of the top having four
symmetrically placed beveled inner surfaces 15 of the journal box having pairs of bottom beveled
surfaces, the beveled surfaces of one pair being
spaced from the front and rear ends of the jour
spaced from the front and rear ends of the jour
nal box, each pair of which transversely of the
nal box and arranged respectively at opposite
frame is spaced a distance equal to the width of
sides
of the inner lug and being in substantially
the tension member.
3. In a railway car truck side frame, integral 20 the same pla-ne as the bottom surface of the web
of the tension member.
tension compression and jour-nal box members,
6. A railway car truck side frame comprising
the tension members having a top web merging
an integral compression member, tension mem
with the top of the journal box member, the jour
ber, and journal box, the compression and ten
nal box member having a substantially horizontal
top and inner and outer lugs provided with side 25 sion members converging toward the journal box
and each bei-ng of inverted channel shape, a
walls merging at their upper ends with the top
spring seat formed on the medial portion of the
of the journal box member, said top of the jour
tension member, and columns connecting the
nal box member having internal beveled sur
faces arranged at opposite sides of the lugs and
tension and compression members, said tension
tension compression and journal box members,
the tension member having a top web merging
with the top of the journal box member, the
journal box member having inner and outer lugs
Vprovided with side walls merging at their upper
spring seat being wider than the remainder of
the tension member and said remainder being
of box section, opstanding flanges provided at
spaced from the front and rear ends of the jour 30 member having an inclined top web terminating
at and merging with the top of the journal box
nal box.
and the top of the spring seat, the top of the
4. In a railway car truck side frame, integral
ends with the top of the journal box member,
said top of the journal box member having in
the edge portions of the spring seat and merging
at their ends with said columns, the top of the
journal box having pairs of bottom beveled sur
faces, the beveled surfaces of one pair being
ternal beveled surfaces arranged at opposite sides 40 spaced from the front and rear ends of the jour
nal box and arranged respectively at opposite
of the lugs and spaced from the front and rear
ends of the journal box, and the beveled sur
faces adjacent the inner end of the lugs being
in substantially the same plane as the bottom
surface of the web of said tension member.
sides of the tension member and being in sub
stantially the same plane as the bottom surface
of the web of the tension member.
HARRY W. STERTZBACH.
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