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Oct. 22, 1946.
E. B. wlGGlNs
, 2,409,650
COUPLING
Y
Filed June. 15. 1943'
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Lene Lane Wgyìnsßrecul/ríx
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als@ ATTORN EY.
Oct. 22,
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E, B_ wlGGlNs
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2,409,650
GOUPLING
Filed June 15. 1945
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2 Sheets-Sheet 2
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_freine Laue 13,723 ing’Execuz/víx
’CLÉ Y ATTORNEY.
2,409,650
Patented oci. 22, 1946
'UNITED STATES yPATENT ori-‘ice
Earl B. Wiggins, deceased, late of Los Angeles,
Calif., by Irene Lane Wiggins, executrix, Los
Angeles, Calif.
Application >June 15, 1943, Serial No. 490,882
9 Claims. (Cl. 285-173)
This invention relates to quick acting couplings.
It is an object of this invention to provide a
coupling whereby sections of conduit, or hose
be described in detail, illustrating the general
principles oi the invention; but it is to be »runder
stood that this detailed description is not ‘to be
taken in a limiting sense, since `the scope of the
may be connected readily in a fluid tight manner,
or disconnected without the need of relative ro
invention is best defined by, the appended claims.
tary movement between the sections; such cou
pling being .easily operable without the need ci
tools.
VIt is another object of this invention to provide
ing the device coupled;
Referring to the drawings:
Figure 1 is an elevation partly in section show
Figure 2 is a sectional view illustrating the de
vice uncoupled;
in’one'adaptation, a coupling wherein axial forces ‘
AFigures 3 and 4 are fragmentary detail `sections
showing steps in coupling the device;
tending to separate the joined sections have no
tendency -to 'disconnect the coupling, but in which
the coupling sections may be readily disconnected
when desired regardless of such axial forces.
Figures 5 and 6 are cross sections taken on 'cor
respondingly numbered lines of Figure l;
Figure '7 is an elevation of a modiñed form oi
, It is another object ¿of this invention to provide
the invention;
Figure 8 is an axial section of a further modi
iied form of the coupling embodying an electrical
connector;
lFigure 9 is 'a transverse section on an enlarged
scale of a fragment oi the connector of Figure 8;
in ‘another adaptation, a coupling wherein the
joined sections are arranged to be disconnected
by axial forces when such forces reach a prede
termined magnitude.
It is another object of this invention to pro
vide a quick acting coupling which is maintained
and,
Figure 10 is a cross section taken on line lil--l il
locked, when coupled, `against loosening ordis
connecting incident to vibration.
of Figure 9.
Referring to Figures 1 and 2 of the drawings
it will be seen that the coupling comprises tubu
lar members i9 and ‘Il yhaving extensions l2 and
i3 respectively telescoping one within 'the other.
Thelouter extension as l2 has an interior annular
shoulder 'lil supporting a sealing ring or gasket
l5 of resilient material, for example leather `or
lt is still another object of this invention to
provide a coupling for joining conduits in` a fluid ~.
tight manner and incorporating an improved seat
or gasket between the coupling sections for seal
ing against pressure within or Ywithout the con
duit.
,
It is still another object of this invention to
provide such a coupling incorporating a gasket,
mounted in one of the coupling sections for seal
ing between the sections, which may be >readily
removed or replaced without disassembling the
neoprene, upon which ‘the inner end or face I6
of the other extension I3 is arranged to seat in a
fluid tight manner. Means for securing or locking
the members I!! and Il iin coupled relation are
coupling section.
provided, comprising a plurality of dogs l1 mount
nect electric oircu’ts, which is easily coupled and
uncoupled and which is securely held against
a shoulder Iii on the extension I3. An operating
means comprising a ring I9 freely movable be
tween limits on the member ID is provided for
It is still another object of this invention to
provide a quick actingv coupling, arranged to con
accidental uncoupling.
ed exteriorly on the extension l2 and engaging
14() urging the dogs l1' toward locking position, or
It is still a further object of this invention to
provide a coupling adapten, to join conduits in a
iiuid tight manner, as well as to form electrical
connections between wiring enclosed in said con
duits.
It is a still further object of this invention to
out of locking position.
The dogs l1. are so
formed and supported with respect to the shoul
der' I8 that upon engaging ‘the shoulder, any
tendency ci the members lll and il to separate
iu:
axially, as for example due to the resilience of
the parts, has the eiiect of lcausing the `dogs I1
to grip the shoulder i8 more firmly; thus these
dogs may be aptly ltermed “self-locking” dogs.
This invention possesses many other advan
This arrangement `has several important advan
30
tages and has other objects which may be made
tages. For instance, no external restraining in
more easily apparent from a consideration of
fluence such as operating ring I9 is needed to
several embodiments of the invention. For this
maintain the dogs locked; further, increased lon
provide a coupling of improved and strengthened
construction, and which is readily assembled.
gitudinal strain *between the members incident
the drawings accompanying and forming part of
tothe use of the coupling has no tendency to re
55
the present speciíication. These ‘forms will now
purpose there are shown a number of forms in
3
2,409,650
lease the locking means, but instead increases
the locking effect.
As clearly shown in the drawings (see also Fig
ures 3, 4, 5 and 6) the extension I2 has a number
4
in a direction parallel to the wedging surfaces
and tending to release the wedge. This condi
tion prevails when the wedge angle is within the
range between zero and an angle the tangent of
of axially extending slots 24 formed therein for
accomodating the dogs Iï. Each dog I'I has a 5 which is equal to the coeflicient of friction, and
projection or tooth 25 on its forward end for
engaging the shoulder I3 and is provided with an
inwardly directed slot 26 intermediate its ends for
accommodating a retainer or pivotal supporting
means 27. As shown in Figure 5, the retainer
21 is in the form of a spring ring accommodated
which is commonly referred to as the angle of
friction. The range from zero to the friction
angle is known as the self-locking range.
In the present instance, the wedge angle of the
surface |25 is well within the self-locking range,
the surfaces I8 and |25 by the resilience of the
in a groove 28 in extension I2 and secured there
in as by an inturned end 29. The rear ends 3G
ring I5 is greater than the component, acting
of the dogs |`| project outwardly.
'
parallel to the surfaces I8 and I 25, of the force
The operating ring IS has a, forward portion 15 exerted by the ring. The dogs
3| of reduced diameter for contacting the dogs
manner, held in engagement with the shoulder
I7, a larger rear portion 32 for freely accommoI8 by :forces developed by the resilient ring I5,
dating the projecting rear portions 30 of the dogs,
and independently of the operating ring I9. The
operating ring is not, therefore, subjected to any
and a rear wall 33 engaging a stop 34 on the
extension I2 which limits outward movement of 20 component of the axial force tending to separate
the ring I9. The arrangement is such that move
the members I il and I I. It functions solely as an
ment of the ring I9 to the left from the shoulder
actuator to move the dogs to and from their lock
'
ing position.
portion 3| of the ring
| 9 to engage the projections 33 which swings each
Since the frictional force acting to retain the
dog I 'I to bring the tooth 25 thereon outwardly
and out of engagement with the shoulder I8 (see
Figure 3). Movement of the ring I9, in the op
posite direction, to the right (Figure 4), will
dogs Il locked is but a small part of the force
cause the portion 3| to urge the dogs I‘I inwardly :
to bring the teeth 25 thereon into engagement
to disengage the dogs |'| from the shoulder I8,
and due to the cam action between the inner sur~
face of the reduced portion 3| on the operating
ring I9 and the portions 30 of the dogs, a light
As previously mentioned, the dogs I'i are ar
force urging the ring I9 to the left as indicated
ranged to be self-locking. This is achieved in
by the arrow <in Figure 3 is suiîicient to cause
the following manner. An inspection of Figures
disengagement of the dogs I1. An inspection of
3 and 4 will show that the lower or inner edge
Figure 1 will show that the ring I9 may be moved
|23 of the locking surface of the tooth 25 is at
a considerable distance from its normal position
a greater radial distance from the pivot 2'1, about
when it is free of the dogs I1, before engaging
which the tooth swings, than is the upper or outer
the dogs to cause their release. By providing this
edge I 24. Thus, the locking surface |25 of the 40 lost motion, it isv possible to strike a blow on the
tooth 25 is at a progressively decreasing radial
dogs I 'I with the ring I9, to assist in causing their
release.
distance with respect to the pivot 21 -between the
points |23 and |24,
To prevent vibration displacing the ring I 9 and
with the shoulder I8.
possibly causing the
a light
`
45 the wall 33 of the ring I 9 and a shoulder 3S on the
edge |23 will just engage the
outer edge |23 of the shoulder I8; further inward
member I 6J for resiliently maintaining the ring
I 9 in its locking or outer position with the wall 33
against the stop 31|.
The member I ü has a reduced portion 33 on
50 which is secured a flexible hose or conduit 39, as
decreasing radius
against the edge |26 of the shoulder I8.
'
by a conventional clamp 40. A similar hose o1'
wedging action of the surface |25 urges the ex
tension I3 inwardly of the extension I2 against
the resilience of the gasket or seat I5, which is
Iiexible conduit may be secured to the member
II in a like manner. However, as shown, the
member II has an exteriorly threaded extension
55 64 with a tapered end face 65 for receiving a con
the extension
thus forcing the shoulder
surfaces |25 on the dogs.
60 manner by a nut 68 threaded on the extension 62.
The member II may also be provided with an in~
tegral mounting ñange 44 if desired, whereby the
coupling and associated conduits may be sup
ported.
65 To couple the conduit 39 with the conduit St,
the ring I3 is retracted against the force of the
spring 35 swinging the dogs I7 outwardly. The
extension I2 is then slipped over the extension
point |23
I3, the face I6 engaging the seat I5. The ring
drawn from pivot 21 to point |23, is very small 70 I9 is then moved ahead or to the right which
and is Within the self-locking range. It is a well
forces the dogs I'I into locking position, as just
known mechanical principle that a wedge is self
described. When it is desired to uncouple and
lccking if the frictional force between the wedg
disconnect the members I2 and I3, the operating
ring I9 is moved to the left against the force of
ing surfaces exceeds the component force acting
75 the spring 35, which causes the dogs I 'I to dis
ascenso
engage the »shoulder I8,1allowing the members I2
and I3 to be separated by relative axial move
ment.
\
be used in connection'with conduits or the like
to `effectively protect the connector Afrom the
weather or other harmful influences.
A ycoupling arranged in this manner is shown
- lAn impor-tant feature `in preventing leakage be
tween the members I0 and I l is the arrangement
of the resilient seal ‘ring I5, as best shown in' Fig
ure‘fl. This ring I5 as previously mentioned is
mounted on an annular shoulder I4, being re
tained thereon by means of a shallow annular ree
cess or groove-46 in which the outer‘edge of the
ring I5 is inserted. This is a very useful »ar
rangement, since the resilience of the ring I5 peru
mits it to be suñiciently deformed for easy removal
or replacement when necessary; further, the ring
I5 is securely held in place on `the shoulder I4
in .Figures 8, 9 and l0. This coupling issimilar
to'that in the other forms of the invention, com
prising ’tubular members 2lb and ZII with‘tele
scopically'engaged `portions 2I2, 2I3 held in cou
pled relationship by dogs ZI'I and shoulder 2I8
without the need of detachable `parts for this
purpose. Hence, the coupling section II) does not
require disassembling for installation ofthe ring
and provided with a sealing ring 2I5. The mem
ber 2H may be provided with an integral sup
porting flange »244. The male element 8-5 of a
connector, which may be a conventional multiple
pin jack, ‘is mounted in the bore of the member
2id. This element includes a cylindrical plug 85
cf `insulating material which may be secured on a
shoulder ‘.81 adjacent the seal ring 2I5 by a snap
ring 88 which engages a groove 39 in the mem
ber 2id. The cooperating‘element 9G of the con
I5. This ring I5 is »substantially wider than the
nector may be similarly secured in the bore of
20
face IB and coaxial therewith. Thus, as the face
the member 2H against a shoulder 9i by a snap
I6 is urged against the ring I5, a central an
ring 92. To seal the elements 85 and 9B in their
nulus of the ring is depressed so that the ring
respective members ZII) and 2H an appropriate
seals against both the `inner and outer edges of
sealing composition indicated at ZIQ and 22D may
the face Iii. In this way leakage of pressure -from
be placed Within the member 2Iû or 2H behind
either the outside or inside of the coupling `past
the element therein- The wiring vconnected to
this face is effectively prevented.
'
the connector elements 35 and 90 is indicated
The coupling as just described may be made
respectively Iby numerals 94 and 95. A sheath
self releasing `by slight modifications. A coupling
or conduit which may be provided for enclosing
so arranged is illustrated in Figure ’7. This cou
such wiring is indicated respectively at 96 and 91,
plingincludes a pair of tubular members ID and
being suitably secured respectively to the tubular
I I arranged to be connected in the identical man
members 2m and 2l I. For this purpose, the ends
ner previously set forth. The member I9 is con-`
of the conduits 95 and ill are inserted respectively
nected to a conduit 3B as before. The member I I
in the ends of the members ZID and 2H, which
is slightly modiñed, the mounting flange [I4 being
ends may be split as indicated atßß for receiving
omitted, and an extension 4I being provided on e the conduit. Clamping bands 99 encircling the
which is secured a 'conduit ‘42 as by clamps 43.
ends of the members 2I0 and 2II serve to secure
The operating member ISiJis identical structure
the‘conduits in the members.
and function »with ring I9 except that it is pro
’To insure proper connection between the con'~
vided with a mounting flange I3!! for subpOl‘tîrlg
nector elements 85 and Gü, means are provided
the coupling, as by being secured to a stationary
wall I32, thev coupling being supported `‘on the
member I3ßlby the spring 35.
f
,
When a `downward forceis applied Yto the mem
ber II >as by a conduit d2, both the members IB
and II being Vlocked together move downwardly
with respect to the member ISI] against the force
of the spring 35.
At some point in this `move
ment the 'member I3@ will disengage-the dog `i1
for angularly positioning the elements with re
spcct to each other. For this purpose a pin I0!)
carrying a key IGI is secured to the element 95)
and‘engages an opening IGZ in the member '85,
this opening I‘llZ havinga slot IBS for receiving
the key It! i. ' It will be clear that with the wiring
enclosed in the conduits »dä and 91, the fluid tight
connection between the members 2l I! and 2l I will
effectively enclose and protect the connector ele
from the shoulder I8 on the member »II discon
necting the members and allowing the member
ments.
`
ï
What is claimed is:
i
'
‘
II to separate from the member Iß. This action
l'. In a quick acting coupling, a pair of coop
can be visualized in connection with Figure l.
erating members adapted to seat one within the
Thus, assuming the‘ring I!! is fixedand the mem?
other, means forming a shoulder on one of said
ber II is pulled to the right as indicated by the
members, a plurality of dogs and means mount
55
arrow I33, the member III carrying the `dogs I1
ing said dogs on the other member for movement
' will move with it causing ‘the ends tuoi `the dogs
toward and away from said shoulder, each of said
I'I to engage the reduced portion 3| of the ring
dogs having a locking surface thereon engageable
I9 and release the dogs. This `is the same action
with said shoulder to secure the members in cou
as that previously described to release the .dogs
pled‘relation, operating means movably mounted
involving `a movement of ring I9 `to the left as in»
dicated in Figure 3. It will Abe apparent that by
appropriate choice of the part by which the cou
pling is restrained or supported, axial force tendn
ing to separate the coupling members may be
caused to increase the locking effect ofthe means
preventing disconnection of the members or, to
effect such disconnection.
(il)
on one of said members for moving said dogs toward and away from said shoulder, one of said
members having resilient'means adapted to be
axially deformed by'means on said other member,
upon movement oí said- member into coupled
relation, lsaid locking surfaces being disposed at
a wedge angle with respect to the direction of
movement thereof, said wedge angle being within
A quick acting coupling as disclosed in Figures
the self-locking range `whereby said dogs are
1 to r1 also may be used in detachably connecting
held in locking engagement with said shoulder,
70
electriccircuits, as by mounting one element of
and independently of said operating means, by
a suitable electrical connector in one member of
friction induced by pressure exerted by said de
the coupling, and the cooperating element- of the
formed resilient means.
2. In a quick acting coupling, a pair of coop
connector in the other member. Further, since
this coupling is adaptedto join conduits or the 75 erating members adapted to seat one within the
like in a fluid tight manner such a coupling may
2,409,650
8
other, means -forming'a shoulder on one of said
members, a plurality of dogs and means mount
ing said dogs on the other member for movement
groove, and a ring seated in said groove and en
gaging the respective notches in said dogs for
pivotally mounting said dogs on said other mem
ber for movement toward and away from said
toward and away from said shoulder, operating
movably mounted on one of said members
for movlng said dogs toward and away from said
shoulder means.
`
6. In a quick- acting coupling, a pair of co
secure the members in coupled relation, one of
said members having resilient means adapted to 10
be axially deformed by means on the other mem
ber during movement of said dogs into locking
engagement with said shoulder, said deformed
resilient means exerting a force maintaining said
15
the members in coupled relation.
7. In a quick acting coupling, a pair of tubular
members adapted to be connected in iiuid tight
relationship, means for securing said members
shoulder solely by friction and in
dependently of said operating means.
i3. In'a quick acting coupling, a. pair of co
operatingr members adapted to seat one within
so connected,
the other, means forming a shoulder on one of
said members, a plurality of dogs and means 25
mounting said dogs on the other member for
movement toward and away from said shoulder,
operating means movably mounted on one of
said members for moving said dogs toward and
away from said shoulder, each of said dogs having 30
a locking surface thereon
coupling is disconnected.
35
sìlient, deformable sealing element mounted on
one of said members, a sealing surface on the
other member engageable with said sealing ele
ment to effect a seal'between the members, and
to axially deform said sealing element, the re 40
silience of said sealing element when deformed
exerting a force maintaining said shoulder in
8. In a quick acting coupling, a pair of tubular
members adapted to be connected in fluid tight
relationship,
frictional engagement with said locking surfaces,
45
means
50
bers, a plurality of'dogs mounted on the other
member and cooperating with said shoulder
the members in coupled re
9. In a quick acting coupling, a pair of tubular
members adapted to be connected in iiuid tight
relationship, means for securing said members so
connected, an operating member mounted on one
of
said members for axial movement with re
55
spect thereto and arranged to release said secur
60
on one member, a
on the other mem 65
ber and cooperating with said shoulder means for
of said dogs having a notch in a face thereof,
said other member having a circumferential
IRENE LANE WIGGINS,
B. Wiggins, Deceased.
Eœecutrz'zr of the Last Will and Testament of Earl
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