Improvements in Joints for Pipes and Tubes.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Joints for Pipes and Tubes.
I, WILLIAM COPPOCK of Stockton Heath in the County of Chester, Wine
and Spirit Merchant, do hereby declare the nature of this invention to be as
follows:-
This invention relates to joints for pipes and tubes.
The appliances or devices which I employ for making the joint according to the
present invention, consist of a liner resembling the frustra of two cones joined at
their bases and bored out axially, and provided with a collar at the junction of the
bases. Two thimbles, one for each pipe end upon which it is constructed to fit,
each thimble being internally coned or flared, and the pipe end being expanded
into it, and having an external collar flange or annular abutment. And, an
external sleeve constructed in two parts, one of which screws within the end of the
other, and provided with an internal annular projection collar or the like at each
end adapted to fit upon the thimble collars or the like.
In making the joint, the pipe ends are separately flared unless the pipe is of such
soft material that the flaring can be effected in the act of making the joint, the
thimbles having first been placed upon the pipes, with one part of the sleeve on
one end and the other part on the other end. The liner is then inserted and the
pipe ends are brought over the liner. The two parts of the sleeve are then
screwed together, thus causing their collars to bear upon the thimble collars and
forcing the thimbles and pipe ends firmly and closely together.
Indiarubber, leather or other washers and the like may be employed in connection
with the above described appliances, as well as a lock-nut, set-screws or the like to
secure the joint under exceptional conditions.
D 1000
W. E. HEYS & SON,
Agents for the Applicant.
1, WILLIAM COPPOCк, of Stockton Heath, in the County of Chester, Wine
and Spirit Merchant, 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 relates to-appliances or devices for making joints in pipes and
tubes.
One form of appliance constructed according to this invention and intended for
making a joint between the ends of two pipes, is provided with an internal liner or
the like resembling the frustra of two cones joined at their bases and bored out
axially, a collar or flange being preferably formed at the junction of the bases.

page_text: The two ends of the pipe or pipes which are to be joined together, are each
furnished with an internally flared or coned' thimble in which the pipe end is
expanded. Each thimble has combined with it an external sleeve, one of the
sleeves being adapted to screw into the other so as to draw the pipe ends together
upon the coned liner:
In another form of device intended for use when a pipe end has to be joined to
a cock, union, or the like, one of the cones upon the liner may be dispensed with
and the other cone be formed upon the union or the like. The pipe end is placed
within its thimble and is held upon the cone by its external sleeve which screws
upon or otherwise engages with the union.
In making a joint the pipe end may be separately flared within its thimble unless
the pipe is of such soft material that the flaring can be effected in the act of
making the joint.
In order that my invention may be more readily understood I have hereto
appended a sheet of drawings to which I will refer hereinafter.
Figure 1 represents partly in elevation and partly in section two pipe ends
joined together by my improved device.
Figure 2 similarly represents three pipe ends joined to a three way union.
Similar letters of reference are used to indicate similar parts where they occur
in the different figures.
As illustrated by Figure 1, A is a double coned liner which may, if desired, be
formed with a central flange or collar B. The pipe ends C are placed upon this
liner together with the flared thimbles D which encircle them. The pipe ends
may be expanded to fit upon the cones and within the thimbles either separately
and prior to the making of the joint, or, in the case of soft metals, in the act of
making the joint. Each thimble has engaging with it as shown, an external
sleeve, E, and one of these sleeves, is adapted to screw into or otherwise engage
with the other, so that the thimbles may be drawn together or forced apart and
the pipe ends be pressed upon or removed from the cones on the liner: The joint
is thus simply and easily undone by unscrewing the sleeves and is as simply made
or remade by screwing them together.
As shown in Figure 2, when it is desired to join a pipe end to a union or the
like F, one of the cones of the liner may be dispensed with and the other cone may
be formed upon the union itself. The method of making the joint is the same as
before described, the sleeve, E, however, preferably screwing upon or engaging
with the union itself.
If desired indiarubber, leather, or other washers, packings, or the like may be
employed in conjunction with the above described appliances, as well as a lock-nut
set screw or the like to additionally secure the joint.
Having now particularly described and ascertained the nature of my said inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
An appliance or device for joining tubes or pipes, constructed and arranged
substantially as hereinbefore described and as illustrated by the accompanying
drawings.
Dated this 6th day of November 1896.
W. E. HEYS & SON,
Agents for the Applicant.