A Novel Construction of Hose and Pipe Coupling.
Year: 1890

page_text: Date of Application, 31st Mar., 1890
Complete Specification Left, 31st Dec., 1890-Accepted, 31st Jan., 1891
PROVISIONAL SPECIFICATION.
A Novel Construction of Hose and Pipe Coupling.
I, EDWARD NUNAN,. of 166 Fleet Street, City of London, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention has for object, the construction of hose and pipe couplings in
a novel manner for an easy coupling and uncoupling, the coupling being
perfectly water tight on a ring being turned in one direction and disengaged by
a reverse turn.
For the purpose of my invention, I form one end or half coupling with an
annular groove near the extremity and in the outer portion of the other half
coupling, arrange two or more movable lugs, the noses of which are within
apertures in the neck. The lugs bear against cam faced reverse inclines in the
inner face of a ring, fitted loosely on the half coupling. The ring is limited in
its movement circularwise by the broadest or thickest part of the inclines which
alternately act to close or open the lugs as the ring is turned to the right or to
the left.
911 1900
H. GARDNER,
Patent Agent, 166, Fleet Street, London, Agent for the said Edward Nunan.
COMPLETE SPECIFICATION.
A Novel Construction of Hose and Pipe Coupling.
I, EDWARD NUNAN, of 166 Fleet Street, City of London, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
This invention has for object, the construction of hose and pipe couplings in a
novel manner for an easy coupling and uncoupling, the coupling being perfectly
water tight on a ring being turned in one direction, and disengaged by a reverse
turn.
For the purpose of my invention, I form one end or half coupling with an
annular groove near the extremity, and in the outer portion of the other half
coupling, I arrange two or more moveable lugs, the noses of which are within
apertures in the neck. The lugs bear against cam faced reverse inclines in the
inner face of a ring, fitted loosely on the half coupling. The ring is limited in
its movement circularwise by the broadest, or thickest part of the inclines which
alternately act to close, or open the lugs as the ring is turned to the right, or to
the left.
My invention will be understood by reference to the annexed drawings.
Figure 1 is a part sectional elevation of the two half couplings A, B, one of
the lugs of A being shown on the ring of B for locking the two parts together.
Figure 2 is a sectional elevation of the half coupling A with the lug thrown back.
Figure 3 is a part sectional elevation on the line a, b, of Figure 2.
Figure 4 is a sectional plan on the line c, d, of Figure 1.
Figure 5 is a section on the line c, f, of Figure 1.
A, B, are the two half couplings. The half coupling A has three slots formed
in a ring face C, and under the ring face C, where the slots are situated, are
recesses or throats, into which one nose D of each lug E finds a lodgment, the
other nose F of each lug E resting upon the outer edge or flange G of the

page_text: ring C and capable of being moved to and fro, a lip H formed between the throat
and the ring C serving as pivots on which the lugs E vibrate. These lugs E
are held in position by a free rotatable ring I provided on its inner band with
two sets of inclines J, K, one set J for pushing the noses F, F, of the lugs E
inwardly, and the other set K for pushing the noses D, D, into the recesses
under the lips H, the reverse incline being so shaped that the noses F of the
lugs move outwardly..
3,
The ring I is held loosely between two flanges L, M, the latter being screwed,
brazed, or soldered in position to hold the ring therein.
The half coupling A holds an india rubber or other packing N in a circular
rocess and when the rim P of the half coupling B (which is shaped to loosely
fit the incline or wall of the half coupling A) sits upon the packing N it only
romains for the ring I to be turned in the proper direction for moving the
noses F inwardly into an annular groove Q formed in the rim P of the half
coupling B so that as the ring I is turned to a greater extent the noses F of
the lugs are pressed inwardly, lips H acting as pivots on which they describe
a segnient of a circle to force the rim P into close contact with the packing N,
which not only locks the coupling until the ring I be again turned, but makes
the two half couplings perfectly water tight.
Having now particularly. described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. The coupling arranged and acting in the manner and for the purpose
described with reference to the annexed drawings.
2. In a hose or pipe coupling in which lugs are arranged for moving inwardly
and outwardly, the placing of a ring having two sets of inclines in reverse
order to each other for operating against lugs for the purpose of locking and
unlocking, or closing, or opening two half couplings by the movements of said
ring I, as set forth and substantially as shewn on the drawings.
3. So arranging the lugs in hose or pipe coupling that said lugs move on pivots
formed by lips at the termination of slots and between the face of the ring and
a recess or apertures in the neck of their half coupling, as described and sub-
stantially as shewn on the annexed drawings.
Dated the 31st day of December 1800.
H. GARDNER,
Patent Agent, 166, Fleet Street, London, Agent for the said Edward Nunan.