Improvements in Pipe Couplings.
Year: 1894

page_text: Date of Application, 14th June, 1894-Accepted, 4th Aug., 1894
COMPLETE SPECIFICATION.
Improvements in Pipe Couplings.
I JAMES ANDREW LYNCH, Plumber, of 3659 Laclide Avenue, St. Louis
Missouri, U.S.A. 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 contemplates certain new and useful improvements in couplings or
joints designed for connecting a pipe to the horn of an earthenware, or other bowl,
of a water closet, urinal, wash-basin or similar fixture, and the object of the inven
tion is to provide a flexible air and water tight connection which shall be simple,
inexpensive and to prevent leakage as well as to remove strain from the horn of the
bowl, or its equivalent, and compensate for any settling or vibrations of the coupled
parts, to prevent injury to horn or like projection of the earthenware fixture from
strain which would result if the coupling were rigid and unyielding.
Another purpose of the invention is to protect the flexible joint from malicious
injury by surrounding the same by a metallic guard or shield which has permanent
connection with the metallic pipe and has its free end encirculating the horn of the
fixture, a space being left between the opposing sides of the horn should any
displacement or movement of the coupled parts take place.
The invention consists of combining with a coupling of the character set forth a
shield to protect the flexible nipple and projecting over and encircling the ends of
the horn or like projection of the earthenware fixture.
The invention consists of a metallic nipple designed to be secured to the end of
a pipe and having a shield extended therefrom for overlapping and enclosing the
end of the horn of the bowl.
The invention also consists of a flexible or yielding nipple firmly seated in the
horn of a bowl, and a metallic nipple enclosing said flexible nipple and coupled to
a pipe.
The invention also further consists of a metallic nipple.having a shield extending
therefrom, a rubber or flexible nipple designed to fit snug in the horn of a bowl, or
its equivalent, and a coupling nut for uniting said metallic and flexible nipples.to.
the end of the pipe, said shield being designed to extend over and enclose_said
horn, whereby a yielding or flexible connection is had between the horn and the
pipe.
The invention still consists of the details of construction, combination and
arrangement of the parts, substantially as hereinafter set forth and particularly
pointed out in the claims.
In the accompanying drawings
:-
Figure 1 is a view in side elevation showing a portion of the bowl and the pipe.
Figure 2 is a vertical sectional view.
Referring to the drawings, A designates the horn or projecting part of a water-
closet bowl, or similar earthenware fixture the latter being broken away, and a a
metallic pipe designed to be connected to said horn. In the horn is formed a
central bore and a circumferential groove or recess a¹, the latter being located near
the end of the horn.
B is a flexible nipple composed of rubber or other suitable material. This
nipple is made cylindrical and on its outer surface is provided with a circumferential.
flange b which fits snugly within the groove or recess a¹ whereby the nipple is held
within the horn. The inner end of the nipple is bevelled at so as to present no
obstruction. The nipple is extended beyond the end of the horn and this extended
portion is slightly reduced in thickness and its outer end is provided with a

page_text: flange b'.
C is a metallic nipple having an exterior screw thread d. Through this
nipple the flexible nipple B is designed to project, the flanged end 63 of the latter
forming a stop for said nipple C. From this nipple extends a shield D which
consists of a shell the outer cylindrical portion d' of which is designed to overlap
and enclose the end of the horn A. At or near its outer end the shield D has an
exterior milled head or flange d' by which the same may be held or turned.
E is a coupling nut having an interior female screw-thread e and a flange e',
which latter is designed to engage a flange es on end of the pipe a, while the female
thread works in the exterior thread on nipple C.
The manner of assembling and tightening the parts will be readily understood
from what has gone before. It will be seen that by the means of my invention a
secure flexible connection is established between the end of a pipe and the horn or
projecting part of a water-closet bowl or other earthenware fixture. While I have
shown and described my improved joint or coupling in connection with a water-
closet bowl, yet it may be understood that the same is equally applicable to urinals,
wash-basins or other earthenware, and fragile vessels requiring a flexible joint or
connection with a rigid pipe to prevent injury to the said horn or any projecting
part by any disarrangement of the coupled parts due to settling, contraction,
expansion and vibrations of the structure or supports to which the parts are
attached.
.
The advantages of my invention are apparent to those skilled in the art to which
it appertains and it will be specially observed that my joint or coupling is
extremely simple and inexpensive; that by means thereof perfect connection or
coupling can be had and that all strain is removed from the horn of the earthen-
ware vessel.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination with a horn or projecting part of a closet bowl or similar
fixture and a flexible coupling, of a shield encircling the flexible coupling and
overlapping the end of the horn, substantially as described.
2. The combination with a horn or projecting part of a closed bowl or similar
fixture, and a flexible coupling, of a shield coupled with the pipe, embracing the
flexible coupling and extending over and encircling the end of the horn or
projecting part, substantially as specified.
3. The combination with a horn or projecting part of a closet bowl or similar
fixture, a pipe, and a flexible nipple connected with the pipe and the horn or the
projecting part, of a shield embracing the flexible nipple and coupled to the pipe
and having a part overlapping and loosely embracing the end of the horn or
projecting part, substantially as described and for the purpose set forth.
4. The combination with a water-closet bowl having a horn, of a metallic nipple
having a hollow shield designed to overlap and enclose said horn and a flexible
nipple designed to fit within said horn and said metallic nipple, and unite the same
to a pipe, substantially as set forth.
5. The combination with a water-closet bowl having a horn, of a metallic nipple
having a hollow shield designed to overlap and enclose said horn and a flexible
nipple provided with a flange fitting within an interior groove of said horn, and
designed to unite the latter and said metallic nipple, and means engaging the
metallic nipple for connecting the same to a pipe substantially as set forth.
6. The combination with a water-closet bowl having a born, of a metallic nipple
having a shield designed to overlap and enclose said horn, and a flexible nipple
provided with a flange fitting in an interior groove of said horn, said flexible
nipple being also provided with an end flange against which bears the end of said
metallic nipple, and means engaging said metallic nipple for connecting the same
to a pipe and binding said flanged end of said flexible nipple between said metallic
nipple and said pipe, substantially as set forth.

page_text: 7. The combination with a water-closet bowl having a horn, of a metallic nipple
having a shield designed to overlap and enclose said horn, a flexible nipple
designed to fit within said horn, and a coupling nut engaging said metallic
nipple and designed to connect the latter to a pipe, and to bind said flexible
nipple between said metallic nipple and said pipe substantially as set forth.
8. The combination with a water-closet bowl, having a born and a pipe, of a
flexible nipple secured to said horn and projecting therefrom a metallic nipple
enclosing said flexible nipple and the coupling uut engaging said metallic nipple
and holding the same and said flexible nipple to said pipe substantially as set
forth.
9. The combination with a water-closet bowl having a horn, of a flexible nipple
secured to the interior of said horn, a metallic nipple enclosing said flexible nipple
and designed to overlap and enclose said horn, a pipe, and a coupling nut engaging
said metallic nipple and binding said flexible nipple to said pipe, substantially as
set forth.
10. The combination with a bowl having a horn provided with an inner groove,
or recess, of a flexible nipple fitted in said horn and having an outer flange
corresponding to said groove or recess the metallic nipple having a shield extended
therefrom and enclosing said flexible nipple and the end of said horn, and the
coupling nut, substantially as set forth.
11. The combination with the bowl, having its horn provided with an inner
groove or recess, and a pipe designed to be connected thereto and having a flanged
end, of the rubber or flexible nipple having a circumferential flange fitting said
groove or recess and also having an outer flange end, the metallic nipple enclosing
said flexible nipple and having an exterior thread, a cylindrical shell extending
from said nipple and enclosing the end of said horn, and the interiorly threaded
coupling nut having the flanged end of said pipe and flexible nipple, substantially
as set forth.
D
T...
1004
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.