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May 27, 1947.
(5, E, wHlTE
2,421,228 '
Filed v00t- 30, 1944
Gz' lberi' E. WI: iie
Patented May 27, 1947
Gilbert E. White, Milwaukee, Wis.
Application October 30, 1944, Serial No. 560,942
2 Claims.
(01. 285-175)
This invention relates to hose coupling.
An object of this invention is to provide a
coupling which is simple to connect and discon
nect and which automatically ‘seals the connec
tion against leakage by reason of the pressure
exerted thereon from the liquid ?owing there
position the locking lugs l l as indicated in Fig. 1,
then the washer 3 is compressed upon the shoul
der 8 and thus seals the connection. However,
in addition to the sealing by compression, the
Couplings of which I am aware have been com
inner wall portion I 6 of the groove 8 on the
washer 3 will, under pressure of ?uid passing
through the coupling, be forced outward against
the inner surface of the shoulder 8 and prevent
the fluid from passing through the joint of the
plicated and di?icult for the average person to
manipulate where such are intended to give satis 10 coupling.
factory service. Furthermore, they are expen
The ?ange [5 on the washer 3 will also be forced
sive and not easily repaired. Those couplings
by fluid pressure into ?rm contact with the ?ange
which are of the simpler structures do not auto
H! on element 2 and further seal the joint, such
matically seal the joint and require considerable
seal being more effective with increased ?uid
force to properly clamp the sealing washers.
15 pressure. Pressure on the ?ange l5 will also
The following description of my invention will
tend to force the flange in more ?rmly against
make it clear that I have devised a combination
the portion between it and the annular shoulder
which eliminates all of the criticisms of devices
8 on element I. Also, pressure on the internal
of which I am aware.
- '
wall of the washer will force the washer into
In the drawings:
20 ?rm contact with the inner wall margin of the
?ange I0.
Fig. l is a side view of my invention.
Fig. 2 is an end view taken from the right of
Obviously, as the pressure of the ?uid increases,
Fig. 1.
the ?ange It will increase its pressure on the
Fig. 3 is a sectional view taken on the line 3-3
shoulder 8. In other words, the e?ectiveness of
of Fig. 2.
25 the packing washer is not impaired by an in
Fig. 4 is a view similar to Fig. 3 with one of the
crease of ?uid pressure but, rather, is enhanced.
parts separated.
Fig. 5 is a View similar to Fig. 3 of the other
Fig. 6 is an end view of Fig. 5 taken from the
right of Fig. 5.
The coupling comprises but three parts, a male
coupling element 1, female coupling element 2,
and packing washer 3. The element I is threaded
externally at 4 for engagement with the usual
I From the foregoing it will be apparent that I
have provided a simple coupling which is easy to
connect and acts to effectively seal the joint auto
matically upon completing the connection and
application of ?uid pressure to the washer.
I claim:
1. A coupling comprising a socketed member
having an externally threaded end, the opposite
end having bayonet-like slots; an annular axially
projecting ?ange integral with and intermediate
female connection on a hose (not shown). The
element I is also provided with an enlarged cylin
the ends of said socket member; an insert mem
drical socket 5 having a plurality of bayonet slots
ber projecting into said slotted end and having
8 and radial lugs l. Internally the element l is
an internal thread at one end, an inner ?ange at
40 the other end, and locking lugs engaged in said
provided with cylindrical shoulder 8.
The element 2 is provided with an internally
slot-s; and a resilient packing washer having an
threaded portion 9 for engagement with a male
annular groove receiving said inner ?ange and
a second annular groove extending axially and
hose connection not shown. An internally pro
receiving said annular axially projecting ?ange
jecting ?ange i0 is provided at one end which is
also provided with locking lugs II receivable in 45 in said socket member, said washer being clamped
between said ?anges and the walls thereof em
the bayonet slots 6 of element I. The opposite
bracing said ?anges.
end of element 2 is provided with a series of
external lugs l2.
The packing washer 3 may be made of rubber
2. A coupling comprising telescopic members
having interacting releasable locking portions,
or any suitable resilient material and comprises 51) one of said members having an annular axially
a portion having an annular groove l3 for receiv
projecting ?ange integral with and intermediate
ing the cylindrical shoulder 8 on the element I.
the ends of said one member, said axially pro
Intermediate its ends, the washer 3 is provided
jecting ?ange disposed within said one member, '
with an annular groove M receiving the internal
the other of said members having an inwardly
flange ID on the element 2 and in effect providing
projecting ?ange disposed within said one mem
a ?ange l5 seated on the ?ange I0.
her in axially spaced relation to said axially pro
From the foregoing it will be apparent that
jecting ?ange, and a resilient packing washer
the element 2 and washer 3 comprise one of the
having an annular groove receiving said inwardly
units of the coupling. When this unit is con
projecting ?ange and a second annular groove
nected with the element l and turned so as to 60 extending axially and receiving said axially pro
said ?anges and the walls thereof embracing said
?anges, said members each being threaded for
jecting ?ange, said washer being clamped between
connection with hose or the like.
The following references are of record in the
?le of this patent:
Moyle ____________ __ Feb. 4, 1902
Wirz _____________ __ Dec. 6, 1932
Lightburne ______ __ Aug. 29, 1882
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