close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2406863

код для вставки
Sept. 3, 1946.
2,406,863
_ J. s. swANN
PANELED STEEL ROOF
Filed July 6,_ 1945
`uur
In
3 SheetsfSheet '1
"im
'
INVENTOR.
.
Jam 5. ¿warm
BY
l Sept. 3, 1946.
J. s. swANN`
2,406,863
PANELED STEEL nROOF
Filed July 9, 1945
3 Sheets-Sheet 2
BY
Sept. 3, 1946.
J. s. swANN
2,406,863
PANELED STEEL ROOF
Filed July 9, 1945
\
e
|
x
*l*
3 Sheets-Sheet 3 .
v
Q
l
'
'
Í
¿D
'
Q
_
INVENTOR.
Jameâ ¿Sz/Jaim,
BY
Patented Sept. 3, _1946
2,406,853
UNITED STATES PATENT OFFICE
PANELED STEEL ROOF
James S. Swann, Homewood, Ill., assi'gnor to
Standard Railway Equipment Manufacturing
Company, Chicago, Ill., a corporation of Dela
ware
Applicati‘on .Íuly 9, 1945, Serial No. 603,860
26 Claims.
(Cl. 10S-5.4)l
1
My invention relates to railway car roofs and
more particularly to that type ofI railway car
2
_Further objects and' advantages of the inven
tion will appear in the following description
roof which is self~sustaining` and wherein a plu,
thereof.
_
rality of metallic roof sheets span from side plate
In the accompanying drawings, forming part
to side plate of the car and are connected there in of my application, and wherein like reference
to and Which preferably have raised panels along’
characters indicate like parts:
their adjacent margins and upstanding‘ nan'ges
Figure 1 is a plan view of a portion of a c‘ar
along their »adjacent- edges rigidly connected to
gether to form a load sustaining~ structure.- Each
roof embodying the invention.
_
_
Figure 2 is a section on line 2-2 of Figure 1,
of the roof sheets is pitched or arched `from ‘a 10 somewhat enlarged.
_
Figure 3 is a section on line 3-3 of Figure 1.
the metal in the portion on each side o'f the
Figure 4 is a planview of a portion of a car
ridge is disposed in upper and lower planes forni
roof showing a modiñed forrn of the invention.
ing the aforementioned panels.
Figure 5 is a plan view of a car roof showing
In a roof sheet for this type of roof the panel
another modined form of the invention.
_
central ridge portion toward the side plates and
is usually formed therein throughout the length
of said sheet with the ends of said panels merg
ing into the plane of the sheet approximately
at the eaves where the sheet turns downl over
the side plates of the car, thereby functioning as
beams between the side walls ofthe car. Fur
thermore, ordinarily the panel is of constant
depth and width throughout its length, and the
sides of the panels are disposedat an angle as
close to a right angle to the' plane- of the sheet 25
as practicable, thus giving greater strength to
Figure 6` _is a plan view of a car roof sheet
showing still another modiñed form of the in
vention.
Figure 7 is a combined section on line 'l-l
of Figure 6' and side elevation thereof. _
Figures 8, Sand 10 are cross-sectional views on
lines 8--8, 9_9 and |0--I0 of Figure 6.
Figure 11 shows a means of uniting adjacent
roof sheets by automatic welding.
In the drawings:
_
My invention is shown as“ einb‘odied in a oar
the panel. Obviously such a roof sheet, as a
roof comprising metal side plates of substan
beam, is progressively weaker from either side «
tially Zsshaped cross' section which extend from'
plate toward the ridge of the roof, being weak
end to end of the car and have a portion l dis
est at the ridge, and consequently it is an object 30 posed horizontally to rest upon and be secured to
of this invention to dispose the metal of said
roof sheet in a manner so that said sheet is
strengthened at its ridge.
_
`
It is the principal object’ o‘f the invention» to
the tops of the longitudinally spaced vertical side
posts (not shown) of the car. From the outer
edges of said portion l depends a flange 2 which
overlaps the upper outer edge of the side posts,
dispose the metal of the roof sheets s‘o that said 35 and at the inner edges of said portion I an up
sheets may be formed of very' thin material.
Another object is to form a plurality of panels
in each sheet, said panels extending from ad
jacent opposite ends of the sheet', overlapping
each other at the approximate transverse centerA
of the sheet, and merging into said sheet between
the transverse center of the sheet and the end
of an adjacent panel, sothat adjacent panels
form, in eifect, a beam between opposite ends of
said sheet.
y A further object is to space said panels so that
the webs of the panels are spaced equal distances
apart at the ridge of the roofso as to substan-l
tially equally distribute the strength of the sheet
along said ridge.
Y
Still another object ofthe invention is to form
adjacent panels so as to provide a diagonally,
disposed stiiîener therebetween to resist weaving
of the car‘.4 Obviously `these stiften‘ers may be
alternately disposed if desired.
'
standing flange 3' is’ provided, it having an in
wardly turned reñange 4 extending in the plane
of the roof ofthe car.`
The' car- roof comprises a plurality of roof
sheets 5 each preferably having a pair of panels
6 formed therein, said panels’_extending` from
adjacent opposite ends of the sheet, overlapping'
each otherV and merging into said sheet be
tween the transverse center of the sheetV and
the end of‘ the other panel so that said panels
form, in effect, a beam between opposite ends of
said sheet.
As will be apparent from Figure 3 these panels
are preferably pressed- upwardly from the plane
of the roof sheets andare of constant depth from
the ridge toward the eaves, but as they approach
the eaves, the panels decrease in depth on a
gracefulV curve to the side plate reilange 4 upon
Awhich the roof sheets ‘rest and are curved down '
55 thereover and secured to the vertical flange 3V
3
thereof, as by the row of rivets indicated at 1.
Each pair of panels, of course, functions as beams
and carries any loads imposed thereon to their
supporting side plates and, therefore, the side
walls or webs 8 of the panels are formed as near
ly at a right angle to the plane of the sheets
as practicable, thus affording additional strength
to the panel as a beam. Since the weakest point
of a beam is that area midway between its points
of support, it becomes desirable to strengthen ~10
that area, if possible. To accomplish that re
sult I have shown the pair of panels in each
sheet as being of substantially like scalene tri
angular form, with the vertices 9 of each pair
overlapping so that the longitudinal central area 15
of the sheets between the two vertices 9 has
pressed therein four side walls or webs 8 instead
of two as in the remainder of the sheet, which
4,
transverse center 43 of the sheet, overlapping
an adjacent panel at this area, and merges into
the plane of the sheet at a point 44 between the
transverse center 43 thereof and the base 42 of
the adjacent panel, so that a pair of adjacent
panels form, in effect, a beam between opposite
ends 45 of the sheet with a diagonal stiffener
therein when applied to a car. t will be noted
that the diagonally disposed stiiîener or depres
sion 31 between the panels 36 extends from end
to end of the panels between the adjacent di
agonal and parallel webs 40 thereof, and also it
will be noted that the outer webs 4I of a pair of
adjacent panels in this modification are parallel
with the sides 46 of the sheet and with each
other. Thus each triangular panel extends from
adjacent one end of the sheet substantially but
» not entirely across the sheet. The panels 36 and
stilîener 31 therebetween have been designed so
remainder, however, is close to the supporting
side plates, and thus does not Aneed as much 20 that transversely across the sheet at the center
they are of equal width, and furthermore the
strengthening. As a consequence of this par
spaces 38 between the outer webs 4I of the panels
ticular formation of the pair of panels in each
and the adjacent upstanding flanges 39 at the
sheet the central otherwise Weakest portion of
sides of the sheet are equal in width to the width
the panel is materially strengthened, thereby ac
complishing the primary purpose of the inven 25 of the panels 36 at the center of the sheet, as
clearly shown in Figure 8. The meeting mar
tion.
,
gins 41 of adjacent sheets are preferably secured
The sides of the roof sheets are formed with
together (by use of a separate element, as shown
upwardly turned flanges I8 which abut, and ad
in Figure 2, or by forming the sheets, as shown
jacent sheets are held together by a seam cap I I
in Figure 8) to form a stifr’ener or carline be
overlapping adjacentA flanges and all secured to
tween opposite ends of the sheet, or in other
gether by a row of rivets, indicated at I2, as is
words, between the opposite side plates or side
common in this type of roof.
walls of the car. By this arrangement the webs
It will be noted in Figure 1 that the roof sheets
of the panels and the stifîeners are equally spaced
are disposed diagonallyacross the car from side
apart along the ridge or longitudinal center 43
plate to side plate thereof, which, when the car
of the roof so that the strength of the several
is moving will tend to deflect water thereon along
panels (that is the roof) is equally distributed
the seam caps and 01T the car rather than tend
throughout the length of the car.
to drive the water under the seam caps as might
Figure 11 shows means for joining two adjacent
be the case when the roof sheets are disposed
at right angles to the car sides. Also disposing 40 sheets together by automatic welding equipment,
‘ and includes a channel-shaped back-up strip 48
said seam caps diagonally will provide a gusset
extending substantially from end to end of the
action and thereby increase the strength of the
roof sheets and supporting the slightly spaced ad
roof.
jacent edges of the roof sheets which are welded
The side walls or webs 8 of the panels are
together and to the back-up strip simultaneously,
preferably formed substantially parallel with a
as at 4.9. The back-up strip also prevents weld
line 21 drawn between opposite ends 28 of ad
ing material from passing through into the insu
jacent seam caps, thus in cooperation with the
lation of the roof.
space 29 between the panels at the ridge form
As shown clearly in Figure 3 in all modifica
ing a diagonal stiifener between the ends 28 of
the seam caps. Furthermore, the space 26 be 50 tions herein the beams formed by the pairs of
panels extend to the opposite ends of the roof
tween said panels and seam caps form, in effect,
sheet at which place the roof sheets and the
depressed panels further cooperating with the
beams are supported by the side plates which.
raised panels and seams to provide a strong roof
form a part of the side walls of the car.
structure.
This application is a continuation in part of my
The running board I3 is supported in any ac
' pending application for patent Serial No. 567,482,
ceptable manner, as by the brackets I4 secured
filed December 9, 1944.
to the seam caps by the rivets I2.
The accompanying drawings illustrate the pre
In the modification shown in Figure 4 the roof
ferred form of the invention, though it is to be
sheets 20 are disposed at right angles to the
sides of the car and the panels 2| formed therein 60 understood that the invention is not limited to
the exact details of construction shown and de
are of substantially like form and functioning to
scribed, as it is obvious that Various modiñcations
the panels 6 previously described.
thereof, within the scope of the claims, will occur
However, in the modification shown in Figure
to persons skilled in the art.
5 the overlapping panels 25 are of constant width
I claim:
but yet overlap at the longitudinal center of the
1. A railway car roof comprising metal roof
car, thereby strengthening the ridge area of the
sheets
disposed cross-wise of the car and joined
roof.
together at their sides, a plurality of panelsv
4In the modification shown in Figures 6 to 10
pressed from the plane of each sheet, said panels
inclusive the roof sheet is shown-at 35, having
the spaced substantially triangular panels 36 70 extending from adjacent opposite ends of the
sheet, overlapping each other and terminating in
formed therein, leaving a diagonal stiffener 31
said sheet between the transverse center thereof
therebetwen which extends, in effect, diagonally
and the end of an adjacent panel, whcrebyrsaid
from end to end of the sheet. The base 42 of
overlapping portions of said panels strengthens
each triangular panel occurs adjacent one end
, the longitudinal central portion of said' roof.
of the sheet and each panel extends across the
annesse
5
1 2.` A railwaycar roof comprising roofísheets dis
posed cross-wise of the carlandjoined‘together. at
their> side: edges, aplurality of raised panels
formed in eachsheet, saidpanels extending from
adjacent opposite‘en’ds‘` of the sheet, overlapping
each other and terminating in said sheet betweenl
the transverse center‘thereof and the end of an
adjacent panel, wherebyísaid-overlapping portions
of said panels strengthens the longitudinal central
portion of saidroof.
`
y
.
.
3. A railway car roof sheet having a pair of
panels yformed therein, said .panelsiextendingïfrom.
between said-opposite ends of said ñrst mentioned
stiñferiers.
.
.i 85. A railway car roof comprising metal roof
Vsl‘i‘ee’tsudisposed cross-wise of the car ‘having their
side edges formed and joined together> to provide
stiifeners extending diagonally between opposite
sides of said roof, some of said sheets provided
with ‘a pair of panels extending from opposite
ends of the sheet, overlapping each other and
mergingI into said sheets between the longitudinal
centerV of-'the roof and the end of an adjacent
panel, the adjacent sides of a pair of panels
adjacent opposite ends. of the sheet, overlapping
being substantially parallel with the shortestV
each other andl merging into saidssheet vbetween
line between oppositeends of adjacent stiffeners,
the transverse center of the sheet and the end ’of 15 whereby said adjacent sides-of said `panels form
the other panel, whereby said overlapping por
a diagonal stitlîener between said opposite ends
tions ¿of said panels strengthens the transverse
of said first. mentioned stiifeners.
central portion otsaid sheet. À
`
»
9. A rectangular railway car roof comprising
tl. A railway car roof sheet having `a pair foi
metal roof sheets disposed diagonally. cross-wise
panels formed therein, said panels extending from 20 of the ‘car having their side edges Aformed and
adjacent opposite` ends of the sheet, ‘overlappingV
joined> together to provide 'stiffeners‘ extending
eachother and merging into saidlsheet between
diagonally between opposite sides of said roof,
the transverse center ofthe sheet and the end'
someof said‘sheets provided with a pair of panels
of the other panel, the adjacent sides of said
extending from opposite ends of the sheet, over
panels being-substantially parallel with a line sub 25 lapping each other and merging into s‘aidrsheets
stantially between diagonally opposite corners ofl
between the longitudinal center of the roof and»
the sheet, whereby said` overlapping portions> of
the other end of said sheet, whereby the end'
said panels strengthens the transverse central
seams` and end sheets provide a gusset actionand
portion of said sheet and said adjacent sides of
increase'the strength of said roof.
said panels forrnfa diagonal stiiïener between
10. A railway car `roof sheet having a pair of
said corners;
l
panels formed therein, said panels extending from
5. A railway car roof sheet having a `pair of
adjacent opposite ends of the sheet overlapping
panels formedtherein, said panels extending from
each other and terminating within the sheet be»
adjacent opposite ends‘of the sheet andtermi-nat-~
tween' the transverse center thereof and the
ing within thesheetbetween the transverse center 35 other end of the other panel. i
»
_
thereof and the other ends of said panels, re
spectively, adjacent panelsoverlapping each other
suiiiciently to develop the bending moment re
11. A Vroof for a railway car, said roof com
prising `metal roof sheets joined together to form
a unitary roof structure, a plurality oi> panels
quirement of the two'panels so as to form in effect
formed therein, said panels extending from ad
a single beam between opposite ends of said sheet 40 jacent opposite sides of the `roof with adjacent
when applied‘to the car Walls and so that said
panels overlapping each other and terminating
beam is provided with two substantially vertical
within the roof between the longitudinal center
webs adjacent the ends of said beam and four
thereof Vand the other ends of adjacent panels.
substantially vertical webs adjacent the middle
1’2. A `railway car roof sheet having aV pair of
thereof.
'
Y
6. A roof for a railway‘car, said roof comprising
metal roof sheets disposed cross-'wise of the car
and joined together at their side edges, a plurality
of panels formed therein extending from adjacent
opposite sides `of said roof and terminating within
the sheets between the longitudinal center of the
roof and the ends of adjacent panels, respectively,
adjacent panels overlapping each other suñì
ciently to develop the bending moment require
ment of said panels so as to provide in eiîect a 55
plurality of beams when applied to the car walls
between opposite sides of said roof, whereby said
beams are provided with substantially twice'as
many vertical webs adjacent the longitudinal
substantially triangular panels formed therein,
the bases of said triangular panels located adja
cent opposite ends of the sheet, said panels over
lapping each other and merging` into said sheet
between the transverse center of the sheet and the
other end of the other panel.
i 13. A‘structure as defined in claim l2 wherein
the outer Webs of said panels are substantially
parallel with each other and with the sides of the
sheet.
14.
A roof for a railway car, said roof com
prising metal roof sheets joined together to form
a unitary roof structure having a plurality of
lsubstantially triangular panels formed therein,
the bases of said triangular panels locaied adja
cent
opposite sides of the roof, said panels over
center of the roof as are provided adjacent the 60
lapping each other and merging into said roof
sides of said roof.
\
between the longitudinal center of the roof and
7. A railway car roof comprising metal roof
the other end of an adjacent panel.
sheets disposed cross-wise of the car having their
l5. A structure as deñned in claim 14 where
side edges formed and joined together to pro
in the margins of adjacent sheets are formed
vide stiffeners extending between opposite sides of 65 so that when joined they provide stiilîeners ex
tending between opposite sides of the roof, and
said roof, some of said sheets provided with a
wherein the distances between the stiiîeners and
pair of panels extending from opposite .ends of
adjacent webs of the panels, the distances be
the sheet, overlapping each other and merging
tween the webs of each panel, and the distance
into said sheets between the longitudinal center
of the roof and the end of anadjacent panel, 70 between the webs of adjacent panels are sub
stantially equal at the longitudinal center of the
the adjacent sides of a pair of panels being sub
roof.
stantially parallel with a line between opposite
16. A railway car roof sheet having a plu
ends of adjacent stiffeners, whereby said adja
rality of substantially triangular panels formed
cent sides of said panels form a diagonal stiffener 75 therein, the bases of said triangular panels lo
2,406,863
cated adjacent opposite ends of the' sheet,;said
8
20. A railway car roof sheet having a pair o!
panels overlapping each other and merging into
substantially triangular panels formed therein,
said sheet between the transverse center of the
sheet and the other end of the sheet, thewebs
the bases of said triangular panels
jacent opposite ends of the sheet,
overlapping each other sufficiently
the bending moment requirement
of said panels being spaced substantially equi
located ad
said panels
to develop
of the two
panels so as to form, in effect. a single beam
between the opposite ends of the sheet, and the
17. A roof for a railway car having spaced
space between the panels forming a diagonal
apart walls, said roof comprising metal roof
sheets joined together to form a'unitary roof 10 stiffener between the ends of the sheet.
21. A railway car roof sheet substantially as
structure and adapted to` extend between said
deñned in claim 20 wherein the width of the
walls, a plurality of pairs of panels formed> in
panels and the width of the stiffener are sub
said roof, the outer webs of each pair of panels
stantially equal at the transverse center of the
being normal to the ends of said sheets and the
distant apart at the transverse center of -the
sheet.
,
adjacent webs of each pair of panels being'diag
onally disposed relative to the ends of said sheets,
said panels extending alternately from adjacent
opposite sides of said roof, overlapping each
other sufficiently to develop the bending mo
sheet.
Y
22. A railway car roof sheet, substantially
as deñned in claim 20, wherein the Width of the
panels and the width of the stiffener and the
distance between each edge of the sheet and
ment requirement of adjacent panels- as a single 20 the adjacent panel are substantially equal at
the transverse center of the sheet.
beam and merging into'said sheets between the'
23. A structure as defined in claim 18 where
longitudinal center of the roof and the other side
in said panels are of equal width to each other
of the roof, whereby said panels form in eiîect
at the longitudinal center of the roof.
a plurality of beams between said walls when
24. A structure as deñned in claim 18 where
the roof is applied to a car and said diagonally 25
in said panels are of equal width to each other
disposed webs form diagonal braces between said
and to the distance between the webs of the
walls when the roof is applied to a car.
panels at the longitudinal center of the roof.
18. A railway car roof comprising metal roof
25. An assembly for a railway -car roof com
sheets disposed cross-wise of the car having their
side edges formed and joined together to pro 30 prising a plurality of sheets joined together, a
vide stiffeners extending between opposite sides
of the roof, said sheets provided with a plu
rality of substantially triangular panels extend
ing from opposite ends of the sheets, overlapping
each other and merging into said sheets between
the longitudinal center of the roof and the other
end of said sheets, the distances between each
plurality of substantially triangular panels
sti?fener and the adjacent web of a panel being
substantially the same as the distances between
nating within the sheets between the transverse
center thereof and the other ends of the sheets.
26. A metallic sheet having a pair of sub
40
the webs of the panels.
j
19. A roof for a railway car, said roof com
prising metal roof sheets joined together to form
a unitary roof structure having a plurality of
substantially triangular panels formed therein,
the bases of said triangular panels located adja
cent opposite sides of the roof, said panels over
lapping each other sumciently'to develop the
bending moment requirement of the two panels
formed therein, said panels extending from op
posite ends of the sheets, with adjacent panels
overlapping each other suñlciently to develop the
bending moment requirement of said adjacent
panels so as to form, in eiîect, beams between
opposite ends of the sheets, said panels termi
stantially triangular panels formed therein, the
bases of said triangular panels located adjacent
opposite ends of the sheet, said panels overlap
ping each other sufficiently to develop the bend-y
ing moment requirement of the two panels so as-
to form, in effect, a single beam between the
opposite ends of the sheet, and the space be
tween the panels forming a stiffener between
the ends of the sheet.
so as to form, in effect, a single bea-m between
JAMES S. SWANN.
the opposite sides of the roof, and the spaces 50
between
adjacent
panels forming
diagonal
stiffeners between the sides of the roof.
Документ
Категория
Без категории
Просмотров
0
Размер файла
837 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа