Improvements in Combined Pipe Couplings and Valves.
Year: 1899

page_text: COMPLETE SPECIFICATION.
Improvements in Combined Pipe Couplings and Valves.
I, DENIS JAMES REAUME, of 501, Putnam Avenue, in the City of Detroit,
State of Michigan, United States of America, Gentleman, 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:--
The invention consists in the peculiar construction of a tap coupling pro-
vided with a valve adapted to automatically close when the pipe sections are
uncoupled and to be opened by the coupling of said sections as more fully
hereinafter described and claimed.
In the drawings, Fig. 1 is a central, longitudinal section through my tap
coupling with the valve closed.
Fig. 2 is a similar view with the valve shown opened, and Fig. 3 is a cross
section on line - of Fig. 1.
My coupling is similar in construction to an ordinary pipe union comprising
the pipe sections A and B and the coupling sleeve C, the latter being swiveled
upon the section B and having a screw thread engagement with the section A.
1) is an elastic packing ring or gasket placed between the sections A and B,
preferably in an annular recess in the section A formed by the exterior annular
flange and the inner concentric tube F, the latter projecting beyond the
gasket and telescoping into the section B.
•
G is a check valve in the section A preferably a ball valve in an enlarged
chamber H in this section and having a seat I against which it is normally
held by spring J, abutting against a shoulder formed by a nipple or section K.
L is an arm for unseating the valve G preferably a winged pin in the tube F,
one end of which is adapted to bear against the valve and the other end against
the cross pin in the section B.
In practice, the nipple K being connected to the supply pipe and the section B
to the discharge pipe whenever the sections are uncoupled the valve G will be
held to its seat by the spring J and the pressure of liquid in the chamber. H.
In coupling, the sleeve C is engaged with the threaded end of the section A
and turned by means of handles N thereon pressing the end of the section B
against the elastic gasket D. As soon as the joint is made the winged pin L
Price 871

page_text: will bear against the ball G and upon a further turning of the sleeve
will unseat said valve, the elastic gasket D being compressed to permit of this
further movement.
In uncoupling the sleeve is turned in the reverse direction allowing the gasket
to expand and the valve to reseat before the sections are separated. It is not
however necessary to uncouple the sections in order to close the valve as there
is sufficient elasticity in the gasket to maintain a tight joint while the valve is
moving towards or from its seat, thus the device performs a double function of
a coupling and a valve which may be readily opened or closed.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:―
In a two part coupling, means for drawing the two parts together, a check
valve carried by one part, a stem for lifting the valve from its seat when the
two parts of the coupling are drawn together, and a rigid cross bar in the other
section which supports the stem.
1000
1000
Dated January 10th
DENIS JAMES REAUME,
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.