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Патент USA US2404284

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July 16, 1946.
«my §69 i952@
Gl. G.. GnLPxN
2 sheets-sheet 2
Filed June 16, 1943
Geri/z 6 (àZ/OUZ,
Patented July 16, 1946
2,404,284? »
Garth G. Gilpin, Chicago, Ill., assignor to Stand
ard Railway Equipment Manufacturing Com
pany, Chicago, Ill., a corporation of Delaware
` Application June 16, 1943, Serial No. 491,255
s claims. (c1. 10s-«157)
My invention relates to car roofs, and more
particularly to a metal walk construction for a
car roof of the type wherein th‘e roof sheetsare
adapted and arranged to form a roof having al
ternating flat-topped panels and fiat-bottom
channels connected by rigid upstanding seams
located in the channels.
Theprincipal object of
the present invention is to devise a strong and dur
' the seam-caps, as will be apparent from Fig. 1.
The panels are `the deepest at the longitudinal
center of the car and decrease in depth progres
sively from said center toward the eaves of th
car where they merge into the flanges 3.
Rigidly secured to eitherV side of each seam cap
at the longitudinal center of» the car is a walk
saddle 8, (Fig. 6), which' is of angle shape, the
able, simple and economical lightweight metal car
vertical flange of whichis secured to the side of
walk construction that can be quickly and easily 10 a seam cap so that the top of the horizontal flange
applied to roofs of the above type and that will
is in a plane with the upper surface of the panels
add little or nothing to the height of the car, thus
'l of the roof sheets. ' The saddles are provided
permitting the car roof to be positioned as high
with~ transverse cut-out slots `9, which, in the
as practicable above the rails within the clear
formV shown in Fig. 6,» extend around the corner
ancelines established by the railroads and so as 15 of the saddle.
to provide a maximum loading capacity for the'
Longitudinally aligned metal walk members l0
are provided to ‘extend-betweenthe seam caps,
Other objects and advantages of the invention
each of which memberscomprises a flat metal>
will appear in th'e following description thereof.
sh‘eet of a, thicknesssubstantially `equal" tothe
Referring now to the accompanying drawings, 20 difference between the depth of the panels ‘l and>
formingpart of this application, and wherein like
reference characters _indicate like parts: .4
Fig'. 1 is a broken perspective view of part of
, a car roof illustrating the application of my im
proved walk thereto.
Fig. 2 is a, longitudinal section through a por
tion of a car roof adjacent the walk showing one
formY of saddle at one seam cap and another form
of saddle at theother seam cap.
` Fig. .3 is a, side elevation of oneof the walk 30
the top of the seamcap 6 so that Lwhen placed
`upon the panel l, transversely thereof-„With theV
ends of said members supported upon the saddles
Vli, the upper surface ofthe walk members and
top. of the >seam-caps, all along the car, will be
in the same plane,.with no projections on said
surface, and thus such construction of walk com
' plies with the Safety. Appliance Acts ofthe Inter
state >Commerce Commission.
l »
The. ends of the walk members lll are provided
with spaced ¿ longitudinally extending slits, the
Fig. 4 is a plan view of a walk member.
sides of which slits are turned downwardly form
Fig. 5 is a fragmental view showing in plan the
ing ñanges l I, which flanges or ribs reinforce the
end of a walk member and its application to a
ends of the walk members where they span the
walk saddle and seam.
35 space between the seam caps and the -panel 1.
Figure 6 is a perspective view of the preferred
The sides of th'e walk members are also turned
form of saddle.
downwardly forming similar iìanges at the sides
Y FigureV ’7 is a perspective view of a modified
of the ends of the members. The flanges formed
form of saddle.
at the slits are spaced so as to extend within the
In the drawings the invention is illustrated as 40 cut-out slots 9 of the saddles, and the side flanges
applied to an all metal car roof which comprises
are spaced so as to overlap the ends of the sad
a plurality of roof sheets 2 extending between the
dles, in which' position the walk members are se
opposite side walls of the car, the outer ends of
f cured inY any desired manner to said saddles.
said sheets being downwardlyflanged, as at 3,
The flanges in the ends of the walk’members
and rigidly secured to the side _plates 4 of th'e_car.j 45 are extendedv inwardly from the ends of the mem
'I'he side edges of said roof sheets 2 are provided
bers a distance equal to the width of that area
with upstanding flanges 5, which ñanges 5 of. ad
of the roof sheets between the seam‘ñange and
jacent sheets abut >one another forming a seam,
the panel 1 to adequately reinforce said members
which seams are straddled by an overlapping in
wh'ere they span rsaid area. "
verted U-.shaped seam-cap illustrated at 6, the 50 ` Before the members are applied to the roof, the.
sides of which' are secured in any desired man
ner to said flanges, thus forming .a carline. Be
tween the seams each roof sheet is provided with
a longitudinal central upwardly extending fiatf
topped panel 'l which is of slightly less depth than 65
upper surface of the panels are iirst given a heavy
coat of .paint or car cement and then the mem
bers are applied, thus sealing said members to
said panels and preventing moisture collecting
by capillary action thereunder.
. Y
y ,t
between opposite ends of the car, each member
extending between and secured to adjacent seam
constructions and comprising a ñat unñanged
part extending across and resting upon the hori»Y
zontal portion of a panel, and opposite end parts
each with depending marginal flanges extending
While I have speciñed that th'e walk members
are of metal, it is obvious that they could be con
-structed of plywood, plastics, or separate wooden
boards without departing from the spirit of the
invention. In the case of metal members being
used, the upper surface thereof would be rough-v
ened 0r knurled somewhat, and in th'e case of`
a wooden board being used, the upper surface
would'be‘ left rough, so that in either event the
from a side of said panel to Vthe adjacent seam
construction, each of said end parts being formed
with a, longitudinal slit'extendin'g substantially
. from the end of the member to adjacent the roof
car Walk would have anti-slip qualities.
sheet panel, and flanges formed in said members
Either in lieu of or in addition to the provi
sion of a coat of paint or car cement on the pan-ï
at the sides of said slit.
els under the walk members, for the purposel of
preventing moisture collecting thereunder', Vthe
sides of said members may be welded to said pan
3.y A structure as defined >in claim l wherein»k
said means comprises saddles each provided with
a'îvertical arm connected to aseam construction
and a horizontal arm'supporting an end .of said
member, and wherein the horizontal arm is slot-VV
. els and thus more positively secure against water
entering between the panels and walk members.,
ted for the reception of said flanges, said walk
In those cases wherein it may not be necessary
Y for the ends of the walk membersrto extend up
' saddle supporting saidÍ walk member between.
the Vpreferred form oi saddle is used, the modified
form’of- saddle, illustrated in Fig. V’7, may be em
ployed. _The' only difference between this modi
ficationland thai-„illustrated in Fig. 6 is that the
4. A railway car roof walk comprising a .plu
rality of longitudinally aligned sections, each sec
tion comprising a metallic memberhavinga flat
to and abut the seam caps, as is the case where 20 said slot andthe opposite margins of the walk
central portion and end portions extending be
yond 'said' central portion.' each end portion pro
.` Vslots I2 do. not extend around the corner of the
. angle shaped saddle, and thus when the nanges
' Il 'of the walk members areY applied therein, the
end of theV walk men'lben'obviously,V can extend
" Y only tothe depth of the slot. VThis of course
vided with downwardly turned marginal ñanges' '
and longitudinally extending f slits >each having'` »
downwardly _turned edges forming flanges toire'
inforce said end portions¿ and means secured'>
would space'the ends of the walk members from
theseam caps slightly more than would bethelv
to a seam cfV said _car roof and'havingcut out
areasïadapted to receive the'flangededges of said f
case where the saddle shown in Fig. 6 is employed.
"From the foregoing» it is believed'I have pro-`
slits to supportsaid walk’member.
provide from one to two inches more inside clear-`
, panels «and'fdepressed portions, andupstanding
anceïwithout increasing the outside »clearance of
seams connecting adjacent sheets,Y said „walkl
Vcomprising a pluralityV of longitudinallyv aligned
the‘f’car; that it will-be'ec'onomical and easy to
manufacture >and-apply to acar roof; and that '
'it-‘Would belefziight 'weight thereby` correspond
- inglywreducingY the total 'weight of the car.
sections, each section comprising a metallicrmein-` '
ber having a ñat central portion adaptedtorest
Y The accompanying drawings'illustrate the pre-Í
ferred form of the> invention, though 'ïit is to be
~ understood that'ïthe invention is not limited‘toV Y
the'rexact details of construction Vshown and de-v
'5. A Walk for a railway carroof'comprising
a pluralityof Y,roof sheets >having’alternate Araised
vided lan improved'railway car. walk which will
upon a raised panel of said vcar roof, and end
. portions extending beyond said Vcentral portion » i
'and adapted to span a depressed portion of,.said
^ car ro-of, each end portion provided'y with downèf
wardly turned marginal iianrges and' longitudi
nally extending slits each ,having .downwardly
Vturned edges formingfñangejslto reinforce said.
scribed, as it isV obvious that various modifica-V
` , tions thereonwithin the scope of the claims, will '
occur to persons skilled in the art.'V y
end'portions, and anangle member .secured to «Y
Having'vv thus describedA my invention,vrwhat-I
a seam of said cary roof and having cut out'areas
claim and- desire to secure by Letters Patent, is: "
l. A'walk for acar roof comprising ñat topped 50 adapted to receive the ilanged edges of- Said'slÍts -
raised panels with horizontal central portions a1
to support said walk member.
. '
6. A walk for a railway car roof comprising a
ternating with depressed channels and rupstand
plurality of roof sheets .having upstanding ,
ing seam constructions between the panels; said
seams connecting adjacent sheets, said walk com-_
walk comprisinga plurality of aligned members
forming a continuous walk substantially between 55 prising a plurality of longitudinally aligned sec
opposite ends of the car, each member extending
between and secured to adjacent seam construc
tions and comprising a flat uniianged central part
extending across Vand resting upon the horizon.
tal portion vof a panel, and opposite end parts 60
eachwith depending marginal flanges spanning
a channel and extending from a side of said panel
to the adjacent seam construction,` and a do-wnf
wardly extending longitudinal rib between said
marginal flanges to reinforce said endy part and
means secured to Asaid seam constructions for
Y supporting Ythe endsY of said members.
2. /Awalk for a car roof'com'prising a .plural
ity of roof YsheetsV extending transversely of the
car with‘upstandingmarginal seam constructions
, connecting adjacent sheets, and an upwardly>
Y projecting panel with a horizontal central por
-ftionï'in each sheety between said seam construc
tions; said .walk comprising a plurality of alined
members forming a continuous walk substantiallyv
tions, each section comprising a, metallic mem
ber having a flat central portion >and end por
tions extending beyond said central portion, each
end portion provided with downwardly turned
marginal flanges and longitudinally extending «
slits each having downwardly turned edges ,form-V
ing _flanges to reinforce said end portions, land
an angle member secured‘to .a seam of said’car
. roof and having cut out areas adapted to .receive
the flanged edges ofsaidïslits to support saidwalk
7'. A"railway car
roof walk "comprising a’V
Y rality of longitudinally Yaligned sections, >each sec-'
tion comprising a metallic member having _a ii'at.
‘central/»portion and end portions extending be-i.
yond said central portion, each' end portion 'pro-._` .
vided vwith longitudinallyV extending slits each
having downwardly turned edges'forming flangesV
to reinforce said end portions, a saddle member
having a vertical arm connected to a seam and'
5 l
a horizontal arm supporting an end of said mem
ber, said horizontal arm having cut out areas
adapted to receive the flanged edges ofsaid slits f
to support said walk member between said slits
and the opposite marginsA of the Walk member.
8. An article of manufacture comprising an
elongated metallic member of sheet material hav
ing a fiat, unfianged central portion and end
parts extending beyond said central portion, each
end part having downwardly turned marginal
flanges and a longitudinally extending slit hav
ing downwardly extending ñanges at the Vedges
of said slit toy reinforce said end part.
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