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Патент USA US2056718

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Oct. 6, 1936.
2,056,718
E. G. FRANCK
CAR ROOF
2 Sheets-Shes?l 1
Filed March 26, 193i
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ATTORNEYS
@et 6, 1936.
E. VG. FRANCK
2,056,718
CAR ROOF1
Filed March 26, 1934
2 Sheets-Sheat 2
INVENTOR
â. ÍÍ’wwC/î
ATTORNEY/S
2,056,718
Patented Oct. 6, 1936
UNITED STATES PATENT OFFICE
2,056,718
CAR. ROOF
Edwin G. Franck, Detroit, Mich., assigner to
Hutchins Car Roofing Company, Detroit, Mich.,
a corporation of Delaware
Application March 26, 1934, Serial No. 717,505
2 Claims. (Cl. 10S-5.4)
The invention relates to roofs for railway box mounting of running boards F which are secured
cars and of the rigid type in which all of the roof
ing sheets are in fixed relation to each other.
It is the primary object of the invention to obtain
5 a construction which is relatively light in weight
but which is nevertheless of sufñcient strength
and thoroughly weatherproof. To this end the
invention consists in the construction as here
inafter set forth.
In the drawings:
10
Fig. 1 is a plan view of a portion of my im
proved car roof;
Fig. 2 is a cross section thereof;
Fig. 3 is an end elevation;
Fig. 4 is an enlarged longitudinal section show
ing the construction of carline and attachment
of the same to the roofing sheets;
Fig. 5 is a side elevation of a portion of a roof.
In car roofs of the rigid type it is usual to
20
attach the adjacent sheets by riveting to each
other or to an intermediate carline and to there
by form a weatherproof joint. However, due to
severe stresses incident to the running of cars, the
seams between sheets may open suñiciently to de
25
stroy the weatherproof quality. This is particu
larly truewith constructions which are made from
relatively light gauge metal. I have therefore de
vised a construction which may be built from
light gauge metal and which is not dependent for
30 its weatherproof quality upon seams that are
tight at all points, the construction being as fol
lows:
A are carlines formed of upwardly opening
channel bars provided with laterally extending
35 flanges A’ at their opposite ends.
B are roofing
sheets extending between adjacent carlines and
overlapping the same. C are inverted channel
members having the laterally extending flanges
C' which overlap the flanges A’ of the carlines A,
thereon by brackets G riveted thereto. Bolts I-I
serve to connect the running boards to these
brackets. These members C also constitute a
portion of the carline and greatly increase its
rigidity due to the vertical depth of the beam.
As a consequence relatively light gauge metal
may be used for forming the members A and C
and will impart all the requisite strength to the
carline. As a further strengthening feature, the
sheets B which extend intermediate adjacent car
lines are formed with a central portion B2 in a
lower plane than the opposite side portion B3,
being connected thereby to an oblique portion
B4. Thus the portions in the two spaced planes 5
will have a trussing effect which increases the
load carrying strength of the roof. The edge
portions B5 of said sheets which extend between
the ilanges C’ and A’ are preferably arranged in
a still higher plane so as to avoid covering the
joint with water which flows from ridge to eaves.What I claim as my invention is:
1. A car proof comprising roofing sheets ex
tending from eaves to eaves, a carline of upward
ly opening channel cross section provided with 25
outwardly extending lateral flanges in the same
plane, a complementary carline member of down
wardly opening channel section having laterally
extending flanges, the flanges of the said carline
members being arranged respectively below and 30
above the roofing sheets and being secured there
to by riveting, said lower carline members being
pitched from ridge to eaves and the channel being
open at the eaves end, said upper carline mem
ber being turned down at the eaves to protect 35
said opening, and upstanding flanges on the edges
of the roofing sheets within the channel of said
carline members and spaced from each other.
2. A car roof comprising rooiing sheets ex
tending from eaves to eaves, a carline of upward
the sheets B extending between said flanges and
being secured thereto by rivets D. To avoid any
danger of leakage into the car the carlines A are
sloped from the ridge to the eaves and at their
ly opening channel cross section provided with
outwardly extending lateral iianges in the same
plane, a complementary carline member of down
eaves end are open to discharge any water which
45 may have passed the same. The upper channel
members C also extend to the eaves and have
line members being arranged respectively below
downturned portions E which cover the ends of
the carlines, leaving an opening only at the bot
tom. As a further weatherprooñng precaution,
50 the sheets B after passing between the ñanges
A’ and C', are bent to form upstanding flanges
B', so that when water passing through the same
is retained by the flanges B’ and is conducted, due
to the slope of the roof, to the ends of the car
55
lines, being discharged through the opening at
the eaves.
The member C will form a saddle for the
wardly opening channel section having laterally
extending flanges, the ñanges of the said car
40
45
and above the roofing sheets and being secured
thereto by riveting, said lower carline members
being pitched from ridge to eaves and the chan
nel being open at the eaves end, said upper car- r
line member being turned down at the eaves to
protect said opening, said rooiing sheets inter
mediate said carlines having portions arranged
in vertically space-d planes to form a truss for in
creasing the rigidity thereof.
EDWIN G. FRANCK.
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