Improvements in Hose Couplings.
Year: 1897

page_text: Date of Application, 17th Mar., 1897-Accepted, 15th May, 1897
Improvements in Hose Couplings.
I, JOHN HENRY HESS of Greenbush Street, Milwaukee, Wisconsin, U.S.A.,
Janitor, 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 :-
In the accompanying drawing
Fig. 1 is a view of two sections of a hose with the coupling of this invention
applied thereto and Fig. 2 is a longitudinal sectional view of the same.
Fig. 3 is an end view of one of the coupling parts.
Fig. 4 a view of one of the coupling parts opened out to shew the interior of the
two sections of which it is composed.
Figs. 5 and 6 are details.
7, 71, are two sections of flexible hose, and 8, 81, metallic tubes inserted into their
ends. These tubes are preferably provided with a series of ridges on the outside
for the purpose of obtaining a firm hold of the hose thereon. 9 is a shoulder on
the tube 8 from which outwardly it is screw threaded. At the rear of the shoulder
the tube is provided with lugs 10. The other tube 81 is also provided exteriorly
with a series of ridges for the same purpose and has at its end a flange 11. The
tube 8¹ is also provided at opposite points with two projecting lugs 12.
13 is a
nut engaging the outer end of tube 8 and baving a shoulder forming a seat 14 for
the flange 11. Before the tube 8 is forced into the hose section 7' it is
passed through the nut 13, the flange 11 of the tube 81 seating itself against the
seat 14 of the nut and preventing longitudinal separation of the two parts. In
order, however, to permit the lugs 12 to pass by the seat 14 this latter is provided
at opposite points with slots 15 (Fig. 6).
Each of the two hinge clamps employed, consists of two semicircular sections 16,
the hinged joint being formed by a lug 17 on one section passing between two
lugs 18 on the other section, and the two sections being connected together by a
hinge pin 19. 20 are apertured lugs on the other edges of the sections, one or both
of the apertures being screw threaded for the reception of a thumb screw 21.
22 are shoulders on the sections, projecting inwardly and adapted to engage over
lugs 10, 12, whereby the clamps are effectually prevented from being longitudinally
separated from the tubes 8, 81
It is obvious that instead of providing two separate lugs 10 on the tube 8 one
continuous projection may be employed, but in the case of the tube 81 separate
lugs such as 12 are necessary in order to permit the tube to be passed through the
nut 13 so that the annular flange 11 of said tube may come against the seat 14.
It will also be noted that the sections of the clamps are provided internally with
ribs 23 for taking firm hold on the exterior of the hose sections.
For the purpose of forming a watertight joint, an annular packing 24 is adjusted
by passing it into the nut against the flange 11 the end of the tube 8 being
subsequently brought firmly there against.
In the application of the invention, after the tubes 8 and 8' and nut 13 are
properly adjusted together, and the tubes inserted into the hose sections, the hinge
clamps are then applied in order to effect a firm and secure coupling. These clamps
are made to embrace the hose sections 7 and 7¹ the shoulders 22 engaging over the
respective lugs 10 and 12 of the tubes 8 and 8. The thumb screws are then
passed through the apertures of the out-standing lugs 20 and when turned so as to

page_text: engage the threads, the two sections of clamp are brought firmly around the flexible
hose. As the hose sections are confined between the ridges of the inner tubes and
the ribs of the sections of the clamps they are held most securely against being
pulled out by longitudinal strain thereon, and as the shoulders 22 are back of the
lugs 10 and 12 it is impossible for any longitudinal strain or force to separate the
couplings from the inner tubes to cause them to more longitudinally and thereby
tear or break the flexible hose. The form of hose coupling now in common use
is open to objection for the reason that the construction of coupling employed is quite
liable to tear, break, or damage the hose, especially by reason of the fact that the
clamps used in such devices pinch or squeeze the hose to such an extent as to cause.a
cutting and severance of the ends after some little use. This danger is avoided to
a great extent in the construction of this invention, as the particular form of hinge
clamp lessens the danger of undue pinching of the flexible hose.
The shoulders 22 at the ends of the hinged sections not only form square
contacting shoulders against the lugs 10 or 12 and hence reduce to the minimum
the liability of the separation of the parts but also form a proper width of space
between the hinged sections and the tube for the admission of the hose sections.
The invention is shewn applied to the meeting ends of hose sections. It will be
understood however that it may be employed at the ends of hose for coupling to
the hydrant in one instance, or to the nozzle in the other. In order to couple to a
hydrant the end of the hose would be provided with the tube 8' and the nut 13 on
the tube, said nut adapted to be turned on to the threads of the hydrant and the
hinged clamp then applied. In case it is used at the opposite end of the hose for
the connection of the nozzle thereto the inner tube 8 alone is employed, and the
nozzle screwed on to the threads of said tube after which the hinged clamp is
applied.
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 :-
In a hose coupling, the combination of a hose section, a tube inserted therein,
said tube provided with a lug or lugs, a clamp consisting of two similar half
sections hinged together at their meeting edges and provided at their outer edges
with projections having registering apertures, said sections adapted to embrace the
hose and provided at their outer ends with rectangular inwardly extending shoulders
adapted to engage back of the lug or iugs of the tube, a thumb screw passing
through the registering apertures of the projections of the hinged sections, and a
nut engaging the tube and adapted for engagement with another part, substantially
as described and shewn.
Dated this 17th dow of Mach 1907
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.