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Oct. 15, 1946.
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' JD. B. HASTINGS
'
PAPER
J
PARACHl-ITE
2,409,562
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' Filec‘il Dec. 4, 1943 1
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Patented Oct. 15, .1946
U
2,409,562
iTED S'i‘?i'l‘iZS PATENT OFFICE
‘ 2,409,562
PAPER PARACHUTE
Dana 13. Hastings, Framingham, _Mass§, assignor
to Dennison Manufacturing Company, Fram
ingham, Mass., a corporation of Massachusetts
Application December 4, 1943, Serial No. 512,854
5 Claims. *(Cl. 244-445)
.1
2
' In the art of aeronautics it is often desirable
Figs. 3 to 6 inclusive are sections on lines 3—3
to drop articles of various kinds by parachute,
and in‘time of war there is of (“:ourse far greater
need for such practice, particularly for dropping
to 6»—-6 of Fig. 1 respectively.
. The particular embodiment of the invention
chosen for the purpose of illustration comprises
three paper sections l, 2 and 3 and two open
rnesh sections 4 and 5'. Preferably the paper sec
food and other supplies to service men in inac~
cessible places. However, the practice has been
tions are made of creped kraft paper with the
greatly restricted heretofore by the cost of para
creping extending radially of the canopy and the
chutes. It has been proposed to make parachutes
open-mesh sections are made of strong netting.
of paper but they have not been very satisfactory.
While it is possible to make paper parachutes 10 Each of the paper sections is made up of a plu
rality of radial segments and, while the open
which, except for the shock of opening, are
strong enough to carry fairly heavy loads, here
mesh sections may be in the form of a continuous
strip extending continuously around the canopy,
tofore it has not been possible to make them
they too are preferably made in segments whose
withstand the shock of opening when heavily
loaded.
15 widths correspond to those of the paper segments.
As indicated in Figs. 1 and 2 the segments are
Objects of the present invention are to provide
preferably tapered towards the middle and they
a parachute which‘ is inexpensive in construo~
are graduated in width so that the ccrrespcnd~
tion, which carries heavy loads‘, which withstands
ing edges of segments of the different sections
the shock of opening when carrying heavy loads,
which requires only materials which are cheap 20 are in alignment radially of the canopy. Thus
the segments 6, l, 8, 9 and H}, of sections 5, 2,
and plentiful, which can be manufactured rapid
3, 4 and 5 respectively, together form a complete
ly and economically, and which is reliable in op
segment extending from the periphery of the
eration.
'
canopy‘ all the way to ‘the central opening H.
According to the present invention the para
As shown in Fig. 4 the adjacent edges of the
chute comprises a paper canopy having ‘one or
segments are turned outwardly into abutting re
more sections of open-mesh material, the ratio
of material to paper being high enough substan
lationship and a radial tape it is stitched over
the outturned margins.‘ Thus the radial tapes
tially to vent the canopy whereby the shock of
interconnect the segments of each of the sections
opening is relieved suf?ciently to avoid damage
to the paper. Preferably the section or'sectioris 30 1 to 5 inclusive. ‘As shown‘in Fig. ,3 the lower
margin of the canopy is protected by a tape [4
of open-mesh material extend circumferentially
folded over the edge. and stitched thereto. This
of the canopy intermediate itscen'ter and periph;
edge is also preferably’ reinforced by a second
ery and they alternate with the sections of paper.
tape .15 stitched along the ‘outer margin of ‘the
For reinforcement a circumferential tape may be
secured to the adjacent edges of the paper and 35 canopy.‘ Thenpper edge is of thecanopy may
be similarly reinforced. As'shown in Fig. 5 the
open-mesh material. In the preferred embodi- '
edges of the sections overlap and are reinforced
ment each paper section comprises a plurality of
by tapes ll’. The paper sections may also be re
segments of crepe paper having the creping ex
tending radially of the canopy, the adjoining
inforced intermediate their upper and lower edges.
margins of the segments being disposed in abut
Thus the upper and lower sections l and 3 are
reinforced by tapes l3 and 59. When the radial
ting relationship, with radial tapes secured to the
tapes [2 are applied before the circumferential
abutting margins and having extensions extend
tapes 12, I4, [5, ll, [8 and IS, the outwardly
ing below the bottom edge of the canopy for at
tachment to supporting cords, the radial tapes '
extending continuously across the open-mesh
material and being secured to the aforesaid cir
cumferential tapes at the intersections of the’
tapes.
For the purpose of illustration a typical em
bodiment of the invention is shown in the accom
panying drawing in which
projecting radial seams (Fig. ii) are folded over
at the intersections with the circumferential
tapes. While the tapes may be formed of any
suitable material the preferred embodiment com
prises nylon for I2, I8 and i9, cotton for It and
webbing for IS. As shown in Figs. 1 and 2 the
50 radial tapes l2 preferably have extensions 20 for
attachment to the supporting cord 2|. The in
Fig. 1 is a perspective view of the upper portion
of the parachute when opened;
Fig. 2 is a side view of the parachute when
55
collapsed and folded; and
tersecting‘radial and circumferential tapes may
be reinforced by bar tacks extending through the
intersections, this being particularly desirable at
the intersections of the tapes I 2 with the tapes l5.
2,409,562
3
4
in the manufacture of the parachute the pre
ferred order of procedure is as follows. The
radial edges of the segments of all the sections
are ?rst secured together with the radial tapes
l2. Then the circumferential tapes are applied
over the radial tapes. While the overlapping
edges of the various parts may be secured to
gether and to the tapes with waterproof cement,
3. A parachute comprising an approximately
hemispheroidal canopy having a plurality of cir
ing through the central opening H and through
being secured together at their crossing points,
cumferential sections of crepe paper and a cir
cumferential section of open mesh fabric inter
posed between the crepe paper sections, the ratio
of the open mesh material to crepe paper being
high enough substantially to vent the canopy,
each paper section consisting of a plurality of
expansible segments having their creping ex
as illustrated in the drawing they are preferably
secured together by stitching. By constructing a 10 tending radially of said canopy, each fabric sec
tion consisting of a continuous length of mate
paper parachute as above described it may be
rial, and a plurality of tapes extending radially
dropped with a much heavier load without being
and circumferentially of said canopy, said tapes
damaged by the shock of opening, the air escap
the open-mesh sections 4 and 5 so that the drop 15 the radial tapes being secured to the radial mar
ginal portions of said paper sections and the cir
is checked gradually instead of abruptly.
cumferential tapes being secured to the circum
As shown in Fig. 2 the segments may be folded
ferential marginal portions of both the open
back and forth accordion fashion and, if desired,
mesh and crepe paper sections.
the folded segments may be folded lengthwise at
4. A parachute comprising an approximately
the open-mesh sections, thereby forming a com 20
hemispheroidal canopy having a plurality of cir
pact bundle.
'
cumferential sections of crepe paper and a cir
It should be understood that the present dis
cumferential section of open mesh fabric inter
closure is for the purpose of illustration only and
posed between the crepe paper sections, the ratio
that this invention includes all modi?cations and
equivalents which fall within the scope of the ap 25 of the open mesh material to crepe paper being
high enough substantially to vent the canopy,
pended claims.
each paper section consisting of a plurality of
I claim:
expansible segments having their creping extend
I. A parachute comprising an approximately
ing radially of said canopy, the adjacent radial
hemispheroidal canopy having a plurality of cir
cumferential sections of crepe paper and a cir 30 margins of said segments being bent into abut
ting relation with each other and their circum
cumferential section of open mesh fabric inter
ferentially extending margins overlapping the
posed between the crepe paper sections, the ratio
of the open mesh material to crepe paper being
margins of said open mesh section, and a plural
high enough substantially to vent the canopy,
ity of tapes extending radially and circumferen
each paper section consisting of a plurality of 35 tially of said canopy, the radial tapes being se
expansible segments having their creping ex
cured to the abutting margins of said paper seg—
tending radially of said canopy, and a plurality
ments and the circumferential tapes being se
of tapes extending radially and circumferentially
cured to the overlapping portions of the crepe
of said canopy, said tapes being secured to the
paper and open mesh sections.
margins of said paper segments.
5. A parachute comprising an approximately
40
2. A parachute comprising an approximately
hemispheroidal canopy having a plurality of cir
hemispheroidal canopy having a plurality of cir
cumferential sections of crepe paper and a cir
cumferential sections of crepe paper and a cir
cumferential section of open mesh fabric inter
cumferential section of open mesh fabric inter
posed between the crepe paper sections, the ratio
of the open mesh material to crepe paper being
posed between the crepe paper sections, the ratio
high enough substantially to Vent the canopy,
of the open mesh material to crepe paper being
each paper section consisting of a plurality of
high enough substantially to vent the canopy,
expansible segments having their creping extend
each paper section consisting of a plurality of
expansible segments having their creping extend
ing radially of said canopy, and a plurality of
ing radially of said canopy, the adjacent radial 50 tapes extending radially and circumferentially of
margins of said segments being bent into abut
said canopy, said tapes being secured to the mar
gins of said paper segments, and a plurality of
ting relationship with each other, and a plurality
shroud lines secured to the outer end portions of
of tapes extending radially and circumferentially
the radial tapes.
of said canopy, the radial tapes being secured to
the abutting margins of said segments and ex 55
DANA B. HASTINGS.
tending continuously across the open mesh
material.
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