Improvements in Metallic Pipe Connections.
Year: 1890

page_text: Date of Application, 14th Oct., 1890-Accepted, 15th Nov., 1890
COMPLETE SPECIFICATION.
Improvements in Metallic Pipe Connections.
We, FELIX LOUIS DECARIE, Engineer, of 29 St. Etienne Street, and JOHN LEE,
Contractor, of No. 428 Cadieux Street, both in the City of Montreal, District of
Montreal, Province of Quebec, Canada, do hereby declare the nature of this
invention and in what manner the same is to he performed to be particularly
described and ascertained in and by the following statement :-
This invention has reference to a means by which pipes formed of those metals
that are ductile, such as copper, lead &c. may be united without solder or
brazing. Also by which a pipe that is not of ductile metal may be united with one
that is.
Nearly all the pipes in use are made of iron, brass, copper, or lead, and it is with
these the invention is chiefly adapted to deal.
In the drawings hereunto annexed similar letters of reference indicate like parts,
and :-
Figure 1 is a central section of the invention uniting two ductile pipes together.
Figure 2 is an elevation of the parts shewn in Fig. 1.
Figure 3 is a side and an end elevation of the sleeve.
Figure 4 shews the manner of attaching a ductile and non ductile pipe together.
Figure 5 shews a second manner of attaching a ductile and non ductile pipo
together.
"
Letters a, are two pipes which have their ends brought into the proper position to
be united. b is a sleeve preferably provided with a central flange for holding or
turning it with a wrench; this as shewn in Figs. 1 and 3, is provided with two
screwed parts c, and two conical ends d may ho screwed or not as desired; e are
nuts screwed to fit the screwed portions c, and terminated in a conical bore f, the
smallest part of which is of such size that it will allow the nuts e to pass freely on
to the ends of the pipes a. When this has been done, the ends that have been passed
through the nuts are expanded, if necessary, with a "drift or tapered pin driven
into them so that they will not pass through the tapered bore f, and yet will enter
freely into the screwed portion of the nuts e, which are then screwed tightly on the
screwed portions c, to compress and swage the metal forming the ends of the pipes
between the conical ends d, and the tapered bores f, to an exact fit between the two.
The said swage surfaces form a tapered space between them, which at the end of
the conical parts or swages d, are about the same width as the thickness of metal in
the ductilo pipes a, and at the end of the screwed parts c, are about equal or rather
less than the reduced thickness of metal of the end of the pipes due to the amount
the extremities of the pipes are expanded to.
In uniting a ductile pipe with a non ductile pipe as shewn in Fig. 4, where the
pipe a, to the right side represents a non ductile pipe, which is not of considerable
thickness, the sleeve b, is made with a single end; this pipe is provided with a screw
thread on which the sleeve provided with a single screwed part c, and conical
end d, is screwed; only one nut e is used in this case between which and the conical
end d, the extremity of the ductile pipe is received and swaged in the same manner
as described for Fig. 1.
In the modification shewn in Fig. 5, the non ductile pipe a (on the right side of
the figure) being of considerable thickness, it is provided with a screw thread C, and
is practically converted into a single ended sleeve b; the end is cut off square and
worked to an ordinary level face on which is placed a detached conical part d, a
washer h, being provided between the two to form the joint between them.
similar to those above described is screwed to fit the screw c, the pipes are then
attached together as herein above described for the other figures.
A nut e,

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a metallic pipe connection the combination of the sleeve having a conical
swage end, with a nut having a conical bore, the two adapted to screw together and
swage the end of the pipe to be connected therewith, the whole substantially as
described.
2. In a metallic pipe connection the combination of the sleeve having screwed
part c, and conical swage end d; with a nut e fitted to the screwed part c, and having
à conical bore, the end d, and bore being adapted to swage the end of the pipe a,
to a fit, the whole substantially as described.
Dated this 14th day of October 1800.
ABEL & IMRAY,
Agents for the Applicants.