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Патент USA US2409908

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Oct 22’ 1945-
’ L. SHAKESBY Erm.
ì
2,409,907
MEANS FOR SECURING FITTINGS TO CONTAINERS
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Filed April ‘7, 1945
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Patented Oct. 22, 1946
2,409,907
UNITED STATES PATENT oFFlcE
2,409,907
MEANS FOR SECURING FITTINGS T0
CONTAINERS
Leonard Shakesby and Charles Andrew ROY
Sutherland, Wolverhampton, and Sydney
Hartley Smith, Manchester, England, assign
ors to Imperial Chemical Industries Limited,
a corporation of Great Britain
Application April 7, 1943, Serial No. 482,218
In Great Britain March 5, 1942
12 Claims.
(Cl. 285-25)
1
2
This invention relates to means for securing
ñller caps, inspection covers, outlet pipes and like
or the like in screw-thread engagement With the
fittings to fluid containers, of the kind in which
are formed oversize with respect to the Shanks of
the said bolts and locking means are provided in
association with the said inner member and heads
of said bolts, said locking means being of thakind
said bolts, characterised in that the said apertures
the material of the container adjacent an aper
ture in the Wall thereof is clamped between a sub
stantially rigid annular member located on the
adapted during assembly to permit limited rotary
inner surface of the container and a substantially
and/or longitudinal movement of the bolts rela
rigid annular member or plate-like member on
tive to the inner member, sealing means being
the outer surface of the container. The invention
is applicable to such fittings for fuel and oil con 10 also provided to ensure liquid-tight joints as be
tween the said inner member and said bolts.
v
tainers for aircraft and other vehicles.
The invention has the advantage that the bolts,
whilst prevented from being displaced or rotated,
may be wobbled slightly in the assembling oper
and outer members by means of a plurality of 15 ation which is thereby greatly facilitated. The
invention may be applied to metal or flexible con
nuts or the like in screw-thread engagement with
tainers. Where fittings are to be applied to a
bolts extending through. aligned apertures in the
Usually in the attachment ofsuch fittings to a
container, the material of the container adjacent
the aperture therein is clamped between the inner
metal container, the outer annular member or
said members and in the material of the con
plate member may constitute a portion of the
y tainer, sealing washers or the like being provided
to` make a liquid-tight joint. In certain circum 20 fitting. Where the fittings are to beapplied to a
flexible container, the outer member preferably
stances, as for example where the fitting is of
comprises a separate portion ancillary to the fit
small dimensions and is more or less inaccessible,
ting which is secured to the inner annular mem
somediñiculty is experienced in entering the bolts
through the appropriate apertures in the annular , ber by means additional to the aforesaid bolts,
members and container, and also in preventing 25 for example by countersunk bolts which bolts do
not contribute to the attachment of the fittings
the bolts from rotating or being dislodged when
to the container.
a nut or the like is being entered into screw
Preferably the bolts associated with the locking
thread engagement therewith. One method of
means are provided with heads at hexagon or
preventing the bolts from being dislodged com
prises entering them in screw-thread engagement 30 other non-circular cross-section. The said lock
ing means may comprise hexagonal-section cap »
with the annular rmember which is located on the
inside of the container so that the Shanks of the
members of known form having a `lug or ear pro
bolts protrude outwardly through the container
vided thereon, the said cap-members being
mounted on the hexagon head bolts and being se
wall. This method has the disadvantage that the
shanks of some of the bolts are liable to be some 35 cured by the said ears to the inner annular mem
ber. Alternatively, the locking means may com
What deflected from the true normal so that the
prise an annularring-member which is secured
positioning of the outer annular member orplate
to the inner annular member, and which is pro
member is dif?cult, and moreover when »a nut is
vided with portions adapted to bridge the heads
entered and rotated in screw-thread engagement
with the shank of the bolt the said bolt tends to 40 of the bolts and to engage one or more flats
formed on the said heads.
become partly unscrewed from the inner annular
Two embodiments of our invention as applied
member.
to the attachment of an outlet pipe to a self-seal
The object of the present invention is to provide
ing flexible fuel tank for aircraft are illustrated
improved means of the kind described in which
the aforesaid disadvantages are overcomein a 45 in the accompanying drawing in whichA
simple and effective manner.
~
According to the present invention we provide
improved means of the kind described »for se
curing filler caps and like fittings to fluid con
Figure l is a perspective View of a portion of an
annular member provided with bolts, sealing
means and bolt locking means in accordance with
one embodiment of the invention.
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tainers, in which the innerv annular member is 50,l Figure 2'is a part sectional perspective viewof
providedV with a plurality of ` bolts or the like
a portion of a flexible fuel container having an
adapted to extend through aligned apertures in
outlet pipe attached thereto by means of the
the-inner and outer members, which members in
' embodiment of the inventionv shown in Figure 1.
Figure 3 is a perspective view of a portion of an
the _assembled position are firmly clamped upon
the material of the container by a plurality of nuts 55 annular member pI‘OVíded With bolts, Sealing
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2,409,907
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Íneans and bolt locking means in accordance with
another embodiment of the invention.
Referring to the drawing in which like numer
sequence on the Shanks of the hexagon head
bolts, and nuts 22 are entered in screw-thread
engagement with the said bolts and tightened
als denote like parts and particularly to Figures
down so that the various parts are-firmly pressed
together in liquid tight relation. The self-sealing
covering is cut away to permit the said parts to`
1 and 2, a 'flexible fuel container comprises a
layer I of fabric material which is treated in
a suitable manner toV render it impervious to'liq- _
-be thus assembled. A clamp-ring 23 of which the
outer edge is turned over as shown at 24 is pro
vided .with apertures to accept the Shanks of the
bolts I5 and is mounted thereon. Nuts 25 are
then entered on the bolt Shanks and tightened
uid fuel, and an outer self-sealing covering con
sisting of a layer 2 of swellable rubber composi
tion and an outer layer 3 of fabric material. An
aperture 4 is provided in the fabric layer I to
constitute an outlet from the said container, and
a reinforcing ring 5 of similar fabric material is
adhesively secured on the inner surface of the
said layer I. The ring 5 and fab-ric layer I are
secured between a substantially rigid annular
N down so thatthe turned-over edge 24 of the
'clamp ring bites into the self-sealing covering
which is thus clamped, together with the fabric
layers I and 5, between the bolt-ring and clamp
ring. The said nuts 22 and 23 are also a self-lock
ing type.
member 6 (hereinafter referred to as a bolt-ring)
adjacent the fabric ring 5 and another substan
In another embodiment of our invention of
tially rigid annular member 'I (hereinafter re
which a portion of the bolt-ring is shown in Fig
ferred to as a face ring) adjacent the fabric layer 20 ure 3, the locking means for the bolt I5 com
I by means of counter-sink head bolts 8 which
prises a locking ring 26 having portions 21 adapt
extend through aligned apertures 9 in the s_aid
ed Yto bridge the heads of the bolts to engage
fabric and said rings and which engage self-lock
two opposite flats thereof. The said locking ring
ing nuts Ill, the heads of the said bolts being
counter-sunk ñush with the adjacent face of the
face-_ring and washer II Ibeing provided between
the said nuts Inl and bolt ring 6. The inner
diameters of the said bolt-ring 6 and face-ring
is riveted to the bolt-ring by rivets 28 in similar
manner to the caps I1.
Y
In stil1 another embodiment of our invention,
(not shown in' the drawing) the bolt-ring'is of
channel section, the distance between the flanges
fl’ are substantially of the same dimensions and
of the channel section corresponding to the di
correspond to the dimensions of the aperture 4 30 mensions of the heads of the bolts measured
in the fabric layer I and ring 5. The outer diame
across the flats, so that the heads- of the »bolts
ter of the bolt-ring 6 is somewhat greater than
are non-rotatably seated in the said channel sec
the outer diameter of the face-ring 1, for a pur
tion. In this embodiment'of the invention, a
pose described hereinafter. A sealing ring I2 is
substantially flat annular ring is `securedto the
seated between the face-ring 'I and the flange I3 35 bolt-ring to prevent longitudinal displacement of
of a hanged outlet tube I4. The bolt ring 6 is
the bolts. Alternatively, the flanges of the bolt-provided with a plurality of heXagon-head bolts
ring may be peened over the bolt headsto pre.
_I 5 which extend freely through aligned apertures
vent
in the aforesaid bolt-ring, fabric layers, face
displacement
thereof.
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ring, sealing ring, and flange ofV the outlet pipe. 40
Whilst we have illustrated and described two
embodiments of our invention as lapplied to the
attachment of a flanged outlet pipe to a self
riveted to the bolt-_ring by rivetsrIS extending
vthroughapertures 20,in the »bolt-ring. The said
like.
The said bolts are inserted through the apertures
in the bolt-ring prior to assembly of the afore
sealing fuel container, it is to be understoodA that
said parts, and are provided with sealing washers
the invention may be employed for ,the attach-Í l
I6located between the heads of the bolts and the
ment of other fittings as for example inspection
bolt-ring.l A pressed-out heXagon-shaped cap I'I 45. covers, filler-caps, sump-plates, hand-hole covers,
4is also fitted over the head of each bolt prior to
recording instruments,- or the like, to containers
assembly of the parts, the said caps having lugs
for fuel, oil, or other liquids. The invention may
orjears I8 formed thereon which lugs or ears are
also be applied to containers for gases and Vthe
apertures 20 are counter-sunk bored as shown at
.2| (Figure 1) and the saidl rivets I9 are finished
flush with the corresponding face of the bolt-ring.
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We claim:
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1. Means for securing ñller caps and like., ñt
4tings to a fluid container having a filling aper
ture, comprising an inner annular member and
The dimensions of thesaid capsA are such that
an outer annular member between which an edge
the bolts are prevented from rotating but are . _ of the apertured container material is held; an
permitted a limited amount of longitudinal move
ment in the apertures through the bolt-ring as
shown in Figure 2. ‘The component parts thus far
described are assembled in the following manner:Y
The bolt-ring, with heXagon-head bolts and caps
fitted thereto-as described hereinbefore is in
serted into the flexible container, the Shanks of
the said :bolts being manipulated through the
corresponding apertures in the fabric material to
project outwardly therefrom and the face-ring
is mounted onthe vprojecting Shanks. This is
apertured filler fitting registering with the icon
itainer filling aperture 4and having Va flange VVdis
posed .in alignment with said outer annular-mem,
ber; bolts securing said> annular members` and
said ñller Vfitting flange together vand passing
through oversize holes in said -inner annular
member to permit movement of the boltshanks
for ready engagement into the apertures in the
component parts during assembly; and means to
65 engage said’bolts and limit rotary’and „longitu
I dinal bolt movement. Y
easily achieved, since the caps I'I prevent the
2. Means for securing filler ,capsv and like fit
tings to a fiuid container having a filling aperture,
» eration. The counter-sink head bolts 8 are then
comprising an inner «annular member *andi an
inserted through the apertures 9 and washers I I, 70 outer annular member between which _an edge ‘of
bolts from becoming dislodged during this op
and the nuts II) are entered on the said bolts
the apertured container material `Iis'held;- bolts
and tightened down, so that the fabric material
Àlayers I and@ are firmly held between the bolt
passing through aligned apertures in said annular
ring 6 and Yface-ring. »The sealing ring I2 and
filler fitting registering with the container ñlling
members and the container edge; _an apertured
flange I3 ofthe outlet pipe are vthen mounted in ,75. aperture and‘having a ñange disposedV in aligni
`atraso?
5
ment with said outer annular- member; afsecond
edgeland fitting flange to hold said parts in sealed
relation, and a clamping ring ‘mounted lon `the
lower ends of said bolts `andextending outwardly
Vsubstantially cto-extensive `with said upper an
the bolt shanks »forïready engagement into the
'apertures in the component parts during assem Cl nular member to clamp the container » material
set of bolts passing through `oversizelholes in said
inner annular member to permitrmovement of -
bly; and means to engage said bolts and .limit ,
rotary and longitudinal bolt movement.
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3. Means for securing illler caps and like‘fit
therebetween.
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7. Means for securing ñller ‘caps and like‘fit
tings `to a fluid container having .a ñlling laper
ture formed in a layer of flexible container ma
,tings `to a fluid container having a ñlling `aper
ture, comprising an inner annular member and 10 terialand in an outer self-sealing covering ma
terial, comprising an inner annular member and
an outer annular member between which an edge
an outer annular member of smaller diameter
ofthe apertured container material ,is held; an
between which an edge of the flexible apertured
apertured ñller'ñtting registering with the con
container material is held; bolts passing through
tainer filling aperture and having a flange dis
posed inalignment withsaid outer annular mem 15 aligned apertures in said annular members and
the container edge; an apertured ñller fitting reg
bers;.‘bolts passing .through oversize holes in said
istering with the container filling aperture'and
innner annular member to permit movement of
having a flange disposed in alignment with said
the bolt .Shanks for ready `engagement 'intothe
apertures in the component parts during :assem
outer annular member; a‘ second set of bolts se
bly of the container edge and fitting flange; and 20 curing said annular members and said liller-iit
ting ilange together and passing through oversize
cap members engaging the heads of said bolts to
holes in said inner annular member to permit
limitrotary and longitudinal bolt movement.
movement of the bolt shanks for ready 'engage'-`
4. Means for securing ñller caps and like llt
ment into the apertures in the component parts
tings to a fluid container having a filling aper
ture, comprising an inner annular member and 25 during assembly of the container edge and fit
an outer annular member between which an edge
of the apertured container material is held; an
ting flange to hold said parts in sealed relation,
and a clamping ring mounted on the lower ends
of said last-named bolts and extending outwardly
apertured filler fitting registering with the con
substantially coextensive with said upper annu
tainer illling aperture and having »a flange dis
posed in alignment with said outer annular 30 lar member to clamp the outer self-sealing cover
ing material therebetween.
member; bolts securing said annular members
and said filler fitting iiange together and passing
8. Means for~ securing filler caps and like fit
tings to a fluid container of flexible material hav
through oversize holes in said inner annular
ing a lilling aperture formed in a layer of flexible
member to permit movement of the bolt shanks
for ready engagement into the apertures in the 35 container material and in an outer self-sealing
component parts during assembly, and a strip
material, comprising an inner annular bolt ring
and an outer annular face ring of smaller diam
secured to said inner annular member and hav
eter between which the edge of .the apertured
ing cap members engaging the heads of said
layer of flexible material is held; bolts passing
bolts to limit rotary and longitudinal bolt move
ment.
40 through said bolt and face rings and the ilex
ible container edge; an apertured illler ñtting
5. Means for securing filler caps and like ñt
registering with the container filling aperture and
tings to a fluid container having a ñlling aper
having a flange disposed in alignment with said
ture, comprising an innner annular member and
an outer annular member between which an edge
outer annular member; a second set of bolts se
of the apertured container material is held; coun 45 curing said annular members and said filler fit
tersunk bolts passing through aligned -apertures
ting ilange together and passing through oversize
holes in said bolt ring to permit movement of the
in said annular members and the container edge;
an apertured fitting registering with the con
bolt Shanks for ready engagement into the aper
tures in the component parts during assembly of
tainer iilling aperture and having a flange dis
posed in alignment with said outer annular mem 50 the container edge, face ring, and fitting flange
ber; a sealing ring between the flange of said
to hold said parts in sealed relation; and a clamp
ing ring mounted on the lower ends of said bolts
ñtting and said inner annular member; a second
and extending outwardly substantially co-exten
set of bolts securing said annular members and
said filler fitting llange together and passing
sive with said bolt ring to clamp the container
throughv oversize holes in said inner annular mem 55 and self-sealing covering material therebetween.
bers to permit movement of lthe bolt Shanks for
9. Means for securing filler caps and like llt
ready engagement into the apertures in the com
tings to a fluid container of flexible material
ponent parts during assembly, and means to en- ’
having a ñlling aperture formed in a layer of ilex
gage said bolts and limit rotary and longitudinal
ible container material and in an outer layer of
bolt movement.
“
60 swellable rubber, comprising an inner bolt ring
6. Means for securing filler caps and like fittings
and an outer face of smaller diameter between
to a fluid container having a filling aperture,
which the edge of the apertured flexible layer of
comprising an inner annular member `and an
material is held; bolts passing through aligned
outer annular member oi smaller diameter be
apertures in said rings and the edge of the ma
tween which an edge of the apertured container 65 terial; an apertured filler fitting registering with
material is held; bolts passing through aligned
the container filling aperture and having a flange
apertures in said annular members and the con
disposed in alignment with said face ring; a sec
.tainer edge; an apertured ñlled iltting registering
ond set of bolts passing through oversize holes in
with the container filling aperture and having a
said bolt ring to permit movement of the bolt
flange disposed in alignment with said outer an 70 Shanks for ready engagement into the apertures
nular member; a second set of bolts passing
in the component parts during assembly of the
through oversize holes in said inner annular mem
container edge and iltting flange to hold said
ber to permit movement of the bolt Shanks for
partsl in sealed relation; and a clamping ring
ready engagement into the apertures in the com
mounted on the lower ends of said bolts and ex
ponent par-ts during assembly of the container 75 tending outwardly substantially co-extensive with
2,409,907
8
said bolt ring to clamp theswellable rubber of said
bolts, and means> carried by said inner .annular
outer‘layer therebetween.
member engaging the heads ofsaid bolts to,A limit `
j
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.10. Means for securing filler caps and like fit
tings to a fluid containerhaving a ñlling aper
ture, comprising an annular> member secured in
teriorly of said container about the filling aper-V
ture and having oversized bolt holes; bolts passing
through the holes in said annular member to per
mit restricted angular vmovement of said bolts,
rotation and longitudinal movement thereof.V ,
.
12. Means .for securing nller caps and like lit-V
tings toca. flexible ñuid container having aV ñlling
aperture, comprising an inner annular member
disposed interiorly .of said container about the
ñlling aperture and having oversized bolt holes;
an outer annular member disposed exteriorly of
and means engagingrthe heads .of said bolts to 10 said container about _the filling. aperture; bolts to
limit rotation and longitudinal lmovement there
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11. Means for securing ñller. caps and like ñt
tings to a ilexible fluid container having a ñlling
clamp said annular members together about the
containeraperture with an edge. of the apertured
container. material therebetween; Va second set .of
bolts passing through the oversized holes in said
aperture, comprising an inner annular member 15. inner annular member to permit restricted auf
secured interiorly of said container about the fill
gular movementof said bolts, and meanscarried
ing aperture and having oversized bolt holes; an
by said inner annular container engaging the
annular member secured exteriorly of said con
heads of said bolts to limit rotation >and longitu
tainer about the filling aperture and between
dinal movement thereof.
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which members an edge of the apertured con 20.
tainer material is clamped; bolts passing through
. LEONARD sHAKEsBY.
_ .
the over-sized holes in said inner annularY mem
CHARLES A-.VR. SUTHERLAND. .1
lber to permit restricted angular movement of said
SYDNEY H. SMITH.
_
.
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