Year: 1887

page_text: Date of Application, 15th July, 1887
Specification Accepted, 15th Nov., 1887
Communicated from abroad by PATRICK JAMES O'CONNOR, of San Francisco, State
of California, in the United States of America, Architect.
I WILLIAM EDWARD GEDGE, of No. 11 Wellington Street, Strand, London, in the
County of Middlesex, Patent Agent, 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 relates to that class of hose and pipe couplings in which an
encircling ring or band is employed to lock and secure the two parts of the coupling
together; and it consists in certain details of construction and arrangement, whereby
the coupling is greatly simplified and rendered more convenient, safe, and reliable,
all as hereinafter specified.
Referring to the drawings which accompany this specification, Figure 1 represents
an elevation of my improved coupling device, partly broken away to show details.
Figure 2 is a plan view of Coupling, Figure 3 is an elevation of the female section
of pipe; Figure 4 a bottom plan view of the same; Figure 5 elevation of the male
section of the pipe and Figure 6 a plan of same.
Let A represent the male, and B the female, section of a hose or pipe coupling. At
one end of the section B, I make an exterior enlargement, which extends about an
inch and a half or two inches (more or less) from its extremity.
Around the extreme end of this enlargement I form an outwardly projecting rim
or bead, d, I then bore out the enlarged end of the section so as to form a chamber
inside of the exterior enlargement, which is somewhat larger in diameter than the
bore of the section, and this chamber terminates in a square shoulder, 1 at its
inner end.
I then make in the end of the enlarged portion of the coupling two or more slots
or channels, E, at proper distances apart in its circumference, which extend into and
through the end of the section and to about one half the length of the enlargement.
I shall usually employ three of these slots at points equi-distant apart. These slots
or channels pass entirely through the metal of the enlargement, but only partially
through the rim or bead, d.
At two or
more points on the exterior of the enlargement, and almost on a
line with the inner ends of the slots or channels, E, I form or secure a small
Projection f

page_text: I then take a band or ring, G, which is made of the proper size to slip over the
enlargement of the section, and make in its inner face as many transverse grooves or
channels, e, as there are slots E in the end of section, B, and at corresponding
distances apart, so that when the ring is in place on the enlargement and one of its
grooves is brought over one of the slots, E, the other grooves in the ring will also be
opposite or over the other slots in the end of the section. The outer edge or rim of
this band or ring I form into as many inclines as there are slots or channels in the
end of the section, allowing each incline to commence at one of the grooves, e.
I can then slip this ring over the enlargement of the section by allowing the pro-
jections, f, to pass through the grooves, e, in the ring. The ring can then be turned
so as to bring its grooves over the slots E of the section. The projections, f, will then
serve as keepers to prevent the ring from being slipped off the enlargement or being
displaced until it has been turned to a position to allow them to pass through its
grooves.
The male section of the coupling I make with a reduced extremity, L, which will
readily enter the recessed end of section B, and I provide it with a bead or projecting
rim, j, which will abut .against, or be near, the end of the enlargement of the female
section when its opposite end presses against the square shoulder, 1 of the recess, as
represented at Figure 1.
On the reduced end of section, A, I form or secure as many lugs, K, as there are
slots in the end of section, B, and at corresponding distances apart. These lugs are
high enough to project through the slots and to a short distance above them, but not
too high to pass through the grooves, e, in the ring when the ring is properly set.
When the end of section, A, has been slipped into the recessed end of section, B, the
lugs, K, will pass into the slots, E, and through the slots, e, in the ring until they
appear on the opposite side of the ring at the foot of the inclines. The ring is then
grasped and turned so as to force the lugs up the inclines, thus drawing the sections
together and pressing the end of section A against the shoulder / so as to form a
close and tight joint.
The rim or outer face of the ring, G, should be milled or roughened, so that it can
be grasped with better effect to turn it; or holes could be made in it and a spanner
used to give a better leverage, usually, however, the milling will be sufficient.
This arrangement for a coupling is extremely simple and the coupling is cheaply
constructed. It has no projecting parts to come in contact with objects when the pipe
or hose is being moved about so that there is no danger of its becoming uncoupled by
accident. It presents a smooth unobstructed interior and the joint formed between
the end of section, A, and the shoulder, 1 can be easily packed or can be made tight
by grinding.
Having now particularly described and ascertained the nature of my said
Invention, as communicated to me from abroad, and in what manner the same is
to be performed, I declare that what I Claim is :-
A hose and pipe coupling consisting of the section B, enlarged at one end and
recessed inside of such enlargement so as to form a square shoulder, 1, at the base of
the recess, said enlargement having the slots, E, projections, f, and projecting rim or
bead d and the section A, with its reduced end, L, bead or rim and lugs, K, in
combination with the ring or band, G, with its grooves, e, and inclines all combined
and arranged to operate substantially as described.
Dated this Fifteenth day of T1. 1007