Improvements in Pipe Connections.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Pipe Connections.
We, NATHANIEL ELSWORTH SMITH Gentleman, of 24 Magnolia Avenue,
Jersey City, New Jersey, and JOHN RHODERIC MCPHERSON, United States
Senator, residing at Jersey City aforesaid, United States of America 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 object of the invention is to form a new and improved pipe-connection for
joining parts of lead or other pipe, which connection will do away with "wiping
the joint and thus dispense with the skilled labour now requisite in such work.
A valuable adaptation of the invention is its use in connection with water-faucets
and boilers, where it is desirable to connect a lead pipe with a brass or other
metallic pipe, harder than lead.
In the drawings;
Figure 1 is a view in elevation showing the joining of two pieces of pipe ;
Figure 2 is a sectional view of the same;
Figure 3 is a view in elevation, showing the old form of connecting pipe by means
of a wipe-joint;
Figures 4, 5 and 8 are detail views of the invention ;
Figure 6 is a view partly in section, partly in elevation, showing the invention
applied to faucet-connection;
Figure 7 is a view mostly in section, showing the invention applied to boiler-
connection.
A A represent the parts of the pipe to be joined. The ends of these are made
flaring, or bent out, or, if of soft metal may be formed, at the time of connection by
a tool or other means, such as a button, into an enlargement or a concave flare.
Upon one of the parts of pipe is a screw-threaded pipe-connection B holding on to
the end of this part.
Upon the other part of pipe is another screw-threaded pipe-connection C holding
on to the end of this part.
D is an annular button or ring of lead or other suitable substance, or a washer,
so formed as to correspond in its outer sides to the concavity or flare at the ends of
the pipe, the hole through its centre being of the diameter of the pipe. When
the button is used to join two pieces of pipe it is approximately of double convex
form.
Under the present invention, in order to unite lead or other soft metal pipe to
brass or harder metal pipe, as in joining a supply-pipe A to a faucet G (see
Figure 6) or a supply pípe A to a pipe E of a boiler F (see Figure 7) it is only
necessary to have the end of the soft metal pipe concaved, and to have the button D,
made in approximately plano-convex form, as shown in Figures 6 and 7, instead of
in the double convex form, shown in Figures 1, 2 and 4. If the pipe or either part
of the desired connection is of hard metal, the button must be soft.
If both parts
are soft, the button may be soft or of suitable hard (not readily frangible or brittle)
substance.
In joining two pieces of pipe, the button D is placed so that its convex side or
sides will bear against the concave edge of the pipe, and the pipe-connections are
then screwed together, thus forcing the convexity of the button closely into contact
with the concavity of the pipe, the yielding substance of the pipe and button, or of
either, thus fitted to correspond with each other, producing a tight and reliable
joint.
The invention is especially valuable in connection with boilers and faucets, in

page_text: that it does away both with "wiping "the joint and with the screw-threaded
coupling piece of brass or hard metal now ordinarily used with its accompanying
piece of brass pipe, which in many instances, at the risk of breaking, has to be bent
to make the desired connection.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
1. The improved pipe-connection, consisting of one or more parts of soft metal
pipe with concaved end or ends, in combination with a perforated button or washer,
adapted to fit a concave end or concave ends, and a connection for drawing the end
or ends up against the button, substantially as described.
2. In a pipe-connection, the combination with a pipe to be connected having an
enlarged end, of a perforated button, and a connecting-piece consisting of a screw-
threaded cup holding and directly engaging the pipe end, and adapted to engage
the screw-threaded end at a complementary portion of a pipe, substantially as
described.
Dated this 28th day of July 1891
W. P. THOMPSON & BOULT,
Agents for the Applicants.