Improvements in Couplings for Pipes and Hose.
Year: 1895

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Date of Application, 12th Feb., 1895
Complete Specification Left, 12th Nov., 1895-Accepted, 14th Dec., 1895
PROVISIONAL SPECIFICATION.
Improvements in Couplings for Pipes and Hose.
I, GEORGE GATTON MELHUISH HARDINGHAM, of 191, Fleet Street, in the
City of London, Civil Engineer and Chartered Patent Agent, do hereby declare
the nature of this invention (a communication to me from Theodore Freylinghuysen
Lees, of 140, East 48th Street, in the City, County and State of New York,
United States of America, Gentleman,) to be as follows :—
+4
This invention relates to certain improvements in the coupling described in the
Specification to Letters Patent granted to me and numbered 12,452, of 1891.
According to the, improved mode of construction, the subject of the present.
application, the coupling comprises a tubular major member having a flange about
one or each of its ends, and provided at. one end with a tubular prolongation,"
preferably circumferentially corrugated, adapted to receive a section of hose, if the
coupling be intended for use with flexible hose. Within this major member is
mounted a sliding tube having upon it a collar or flange designed to form one
abutment for a coiled spring; this spring. being placed between the collar and a
shoulder formed on the interior of the major member of the coupling. The inner
tube projects from the mouth or receiving end of the major member and extends
back into the tubular prolongation at the end opposite to the mouth, the tube being
there provided with a slot, in which a pin or stud carried by the major member
engages; this stud serving to limit the longitudinal movement of the tube in the
major member of the coupling. The minor member of the coupling is also tubular.
At one end it is adapted to fit snugly over the protruding end of the sliding tube in
the, major member and to fit snugly into the mouth or receiving end of said
member. The entering end of the minor member bears on a packing ring on the
inner or sliding tube; said ring being seated on the outer face of the tube-flange.
On the minor member are two oppositely arranged, outwardly projecting locking
studs, which, when the two members are being put together in the operation of
coupling, pass through openings in the flange. on the major member of the coupling
and into an L-shaped locking slot, in the latter, one member of the coupling being
thereby locked to the other; the inner or sliding tube being meanwhile pushed
back-compressing the cushion, spring-in order to effect the locking.
.
There may be, and usually is, inserted between the spring and the internal
shoulder on the major member, a loose washer and packing material to provide
against leakage about the sliding tube.
Dated the 12th day of February 1895.
COMPLETE SPECIFICATION.
La
Improvements in Couplings for Pipes and Hose.
I, GEORGE GATTON MELHUISH HARDINGHAM, of 191; Fleet Street, in the
City of London, Civil Engineer and Chartered Patent Ageut, do hereby declare
O the nature of this invention (a communication to me from Theodore Freylinghuysen
Lees, of 140, East 48th Street, in the City, County and State of New York,

page_text: Junted States of America, Gentleman,) and in what manner the same is to b
performed to be particularly described and ascertained in and by the following
statement :-
This invention relates to certain improvements in the coupling described in the
Specification to Letters Patent granted to me and numbered 12,452 of 1891.
According to the improved mode of construction, the subject of the present
application, the conpling comprises a tubular major member having a flange about
one or each of its ends, and provided at one end with a tubular prolongation,
preferably circumferentially corrugated, adapted to receive a section of hose, if the
coupling be intended for use with flexible hose. Within this major member is
mounted a sliding tube having upon it a collar or flange designed to form one
abutment for a coiled spring; the spring being placed between the collar and a
shoulder formed in the interior of the major member of the coupling. The inner or
sliding tube projects from the mouth or receiving end of the major member and
extends back into the tubular prolongation at the opposite end, the tube being
there provided with a slot in which a pin or stud carried by the major member
engages; this stud serving to limit the longitudinal movement of the sliding tube
in the major member of the coupling. The minor member of the coupling is also
tubular. At one end it is adapted to fit snugly over the projecting end of the
sliding tube in the major member and to fit snugly into the mouth or receiving end
of said member. The entering end of this minor member bears against a packing
ring on the inner or sliding tube; said ring being seated on the outer face of the
tube-flange. On the minor member are two oppositely arranged, and outwardly
projecting locking studs, which, when the two members are being put together in
the operation of coupling, pass through openings in the flange on the major member
of the coupling and into an L-shaped locking slot in the latter, one member of the
coupling being thereby locked to the other; the inner or sliding tube being
meanwhile pushed back-compressing the cushion spring-in order to effect the
locking.
A coupling constructed in accordance with this invention is illustrated in the
accompanying drawings; whereof Fig. 1 is a longitudinal section, Fig. 2 a
corresponding plan, and Fig. 3 a view of the mouth or receiving end of the major
member.
The major member A of the coupling is provided with a circumferentially
corrugated prolongation a, for the reception of the hose X, and with a flange a¹ at
its mouth or receiving end. B is the minor member, also provided with a circum-
ferentially corrugated prolongation b, for the reception of the hose X', and with
the locking studs 6', which engage in locking slots c, in the major member; the
studs 6 passing through passages or openings d, in the flange a¹.
Cis the sliding tube mounted in the major member A, this tube being formed
with a flange e, fitted with a packing ring 9. D is a spring disposed between the
flange e and the shoulder on the major inember. In the tube C is a slot i, in
which a stud j, on the major member A, engages.; this slot limits the movement
of the tube C-under the influence of the spring D-when the members of the
coupling are disengaged.
It will be observed that, in this coupling, the hose X is not connected to the
tube C, but to a part of the major or female member, and that, in consequence,
the tensile strain which tends to separate the members of the coupling is thrown
entirely on the stud or studs 6'. This enables the hose, when coupled, to with-
stand far greater internal pressure-tending to open the joint-than is practicable
in cases where the tube is attached to the hose; as in the latter case only the
tension of the spring can be relied on to keep the joint closed. Moreover, the
entering end of the minor member B is slightly bevelled, as shown, in order to
force the packing ring 9 outward and thus effect a tighter joint with a given
pressure of the spring.
The spring D abuts at its inuer end on a washer h¹; a packing ring h³ being
placed between said washer and the shoulder h.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I claim :-
1. The improved coupling for pipes and hose, arranged substantially as
described with reference to the accompanying drawings, and comprising a major
member (A), a minor member (B), an inner sliding tube (C) and means for
securing the major and minor members together; the whole operating substantially
as herein set forth.
2. In a coupling for pipes and hose, the combination with a major member A,
provided with a prolongation a for the reception of the hose, of the flanged sliding
tube C, mounted in the major member, the spring D, arranged between a shoulder
on the major member and the flange on the tube C, the minor member B, adapted
to fit over the said tube C and into the major member, a packing ring at the
joint and a locking device for securing the major and minor members together,
substantially as set forth.
3. In a coupling for pipes and hose, the combination with the major member A,
provided with a prolongation a for the reception of the hose, and having a locking
slot C, of the flanged sliding tube C, mounted in the major member and furnished
with a slot i, in which a stud on the major member engages, the spring D, and the
minor member B, provided with locking studs, substantially as set forth.
4. In a coupling for pipes and hose, the combination with the major member,
having a prolongation for the reception of the hose and an internal shoulder h, of
the sliding tube C in said major member, provided with a flange e, a packing
ring 2, and a washer, and a spring D, which encircles the tube C, and abuts
at one end against the flange e and at the other end against the washer h¹,
substantially as set forth.
Dated the 12th day of November 1895.