AN IMPROVED COUPLING OR UNION FOR PIPES OR HOSE
Year: 1876

page_text: LETTERS PATENT to Francis Arding, of 5, Joffreys Square, in the City of
London, Engineer, for the Invention of "AN IMPROVED COUPLING OR UNION
FOR PIPES OR HOSE." A. communication from abroad by Henry Pennie, of
Brooklyn, in the United States of America.
Sealed the 21st October 1876, and dated the 2nd August 1876.
PROVISIONAL SPECIFICATION loft by the said Francis Arding at the Office
of the Commissioners of Patents on the 2nd August 1876.
"AN
FRANCIS ARDING, of 5, Jeffreys Square, in the City of London, Engineer.
IMPROVED COUPLING OR UNION FOR PIPES OR HOSE."
This Invention relatos to an improved coupling or mechanism for firmly connecting
two pieces of lead pipe, rubber hose, or other soft or other tubing, and consists
principally in effecting the desired result by means of an outer soft metal shell
or sleeve which is pressed into the soft pipo or tube; also in the arrangement of
mechanism for pressing the ends of the said shell or sleeve into the pieces of pipe to
be joined, all as hercin-after more fully described.
The coupling is composed of a short tube or sleeve of lead or other soft or
yielding metal, its inner diameter being about equal to the outer diameter of the
pipes to be connected so that it can be slipped over the said pipes.
On its inner circumference this sleeve is provided with an inner rib or ring
against which the ends of the pipes abut. This ring is bevilled (being of dovetail
form in section), and the ends of the pipes are tapered in conformity with the said
Lovel. By providing the sleeve with the ring, the pipes become properly centred
in the sleeve, an equal length of each being entered into the sleeve. The production
of a tight joint is morcover facilitated if the ends of the pipes are drawn tight
against the ring. The thickness of the ring is equal to the thickness of the pipes,
so that its inner circumference is flush with the bore of the pipes; a continuous
bore is thus formed which is of great advantage in the case of tinned pipes, because
the liquid is thereby prevented from contact with the untinned ends of the two
pipes at the joint.
The sleeve whether made with or without the said ring is made with tapering
ends, and I desire it to be understood that when I described the said sleeve to be
made of yielding material, I had reference only to its reduced ends, for its middle
portion may be made of harder unyielding substance, without in any way changing
the effect of the Invention.

page_text: The body of the sleeve between its tapering ends carries a screw over which
two nuts can be screwed from opposite sides. Each of those nuts has a conical
extension which differs in the angle from that of the tapers of the sleeve. By
screwing the nuts upon the sleeve their conical parts aro gradually drawn upon
and against the yielding tapers of the sleeve, and caused to press the same into the
yielding pipe and thus to produce a tight joint, that is to say, the yielding ends of
the sleeve are pressed into the pipes with such force as to insure their permanent
connection with the sleeve, and also produce a tight joint. For many purposes the
nuts may now be withdrawn, leaving the sleeve secure on the pipes; or they may
be allowed to remain.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Francis Arding in the Grant Seal Patent Office on the 1st February
1877.
FRANCIS ARDING, of 5, Jeffreys Square, in the City of London, Engineer. "Ax
IMPROVED COUPLING OR UNION FOR PIPES OR HOSE." A communication from
abroad by Henry Pennie, of Brooklyn, in the United States of America.
This Invention relates to an improved coupling or mechanism for firmly connecting
two pieces of lead pipe, rubber hose, or other soft or other tubing, and consists
principally in effecting the desired result by means of an outer soft metal shell or
sleeve which is pressed into the soft pipe or tube; also in the arrangement of
mechanism for pressing the ends of the said shell or sleeve into the pieces of pipe to
be joined, all as herein-after more fully described.
Figure 1 of the annexed Drawings is a side view, Figure 2 a longitudinal section,
and Figure 3 an end view of this improved coupling.
A and B represent two pieces of lead pipe to he joined ; C is a short tube or sleeve
of lead or other soft or yielding metal, its inner diameter being about equal to the
outer diameter of the pipes A, B, so that it can be slipped over the said pipes as
shown. On its inner circumference this sleeve C is provided with an inner rib or
ring a, against which the ends of the pipes A and Babut, as in Figure 2. This ring a
is bevilled (being of dovetail form in section), and the ends of the pipes A, B, are
tapered in conformity with the said bevel. By providing the sleeve C with the
ring the pipes A, B, become properly centred in the sleeve, an equal length of
ach being entered into the said sleeve. The production of a tight joint is moreover
facilitated if the ends of the pipes are drawn tight against the ring a. The thickness
of the ring is equal to the thickness of the pipes so that its inner circumference is
flush with the bore of the pipes; a continuous bore is thus formed which is of great
advantage in the case of tinned pipes, because the liquid is thereby prevented from
contact with the untinned ends of the two pipes at the joint.
The sleeve C whether made with or without the said ring a is made with tapering
ends b, d, as shown, and I desire it to be understood that when I described the said
sleeve to be inade of yielding material I had reference only to its reduced ends; for
its middle portion may be made of harder unyielding substance without in any
way changing the effect of the Invention.
The body of the sleeve C between its tapering ends b, d, carries a screw e, over
which two nuts and g can be screwed from opposite sides, as shown in Figures 1
and 2. Each of these nuts has a conical extension which differs in the angle from
that of the tapers b, d, as indicated in Figure 1, which Figure shews one nut in
section and in position before it has pressed the end of the sleeve. By screwing
the nuts upon the sleeve their conical parts are gradually drawn upon and against
the yielding tapers b, d, and caused to press the same into the yielding pipe A, B,
and thus to produce a tight joint, as seen in Figure 2, that is to say,
the yielding
ends of the sleeve are pressed into the pipes A, B, with such force as to insure their
permanent connection with the sleeve, and also produce a tight joint. For many

page_text: purposes the nuts may now be withdrawn, leaving the sleeve secure on the pipes;
or they may be allowed to remain in the position shewn in Figure 2.
And having now described the nature of the said Invention, and in what manner
the same is to be performed, I declare that I claim―
First. The sleeve C made with the inwardly projecting and bevelled ring a to be
used for connecting two ends of the pipe A, B, substantially as herein-before
described and represented in the annexed Drawings.
Second. The combination of the threaded sleeve C which has the tapering
yielding ends b and d with the nuts ƒ and g having the conical extensions I,
substantially as herein-before described and represented in the annexed Drawings.
In witness whereof, I, the said Francis Arding, have hereunto set my hand
and seal, this Thirty-first day of January, One thousand eight hundred and
seventy-seven.