Improvements in the Joints of Pipes and in the Manner of Manufacturing the same.
Year: 1892

page_text: The decision of the Comptroller-General, of the 10th day of July 1893, allowed,
under Section 18 of the Patents, &c. Act, 1883, an Amendment of this
Specification.
Date of Application, 27th Jan., 1892
Complete Specification Left, 25th Oct., 1892-Accepted, 17th Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Joints of Pipes and in the Manner of
Manufacturing the same.
I, JOHN SPENCER of Globe Tube Works, Wednesbury in the County of
Stafford, Tube Manufacturer, do hereby declare the nature of my said invention to
be as follows:-
My invention has for its object improvements in the joints of pipes and in the
manner of manufacturing the same and has particular reference to wrought iron or
steel pipes where the socket or joint cannot be one solid homogeneous mass with the
body part as in the case of cast iron pipes.
In the case of flanged pipes I place the flange upon the end so that the end of the
body projects through the flange and I then enlarge the projecting piece so that
upon the pipe becoming under heavy pressure it will not draw back again. These
projecting parts may abut against each other and then a distance ring or ferrule
embraces both the projecting ends. The ferrule also may be dove tail in section so
that any packing placed therein would not blow out. The bolts may go either
outside or through this ring. For heavy pressures I make socket joints by screwing
a double socket piece on to the two ends of the pipe the thread of the pipe going.
back sufficiently to allow screw glands upon the body of the pipe being afterwards
run into this double socket against the packing. Or the gland may be plain on the
pipe and have an external thread into a thread inside the double socket.
For ordinary double socket pieces I make them from a plain length of pipe by
enlarging or expanding the socket at the ends or by compressing the centre part
out of a larger length of tubing or by enlarging one portion and compressing other
portions which cheapens the cost considerably.
Dated this 26th day of January 1892
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.
COMPLETE SPECIFICATION (AMENDED).
Improvements in the Joints of Pipes and in the Manner of
Manufacturing the same.
1, JOHN SPENCER of Globe Tube Works, Wednesbury in the County of
Stafford, Tube Manufacturer do hereby declare the nature of my said invention and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
My invention has for its object improvements in the joints of pipes and in the
manner of manufacturing the same and has particular reference to wrought iron or
steel pipes where the socket or joint cannot be one solid homogeneous mass with the
body part as in the case of cast iron pipes.

page_text: the case of manged pipes i prace the mange upon the end so that the ends of
the body projects through the flange and I then enlarge the projecting piece so that
upon the pipe becoming under heavy pressure it will not draw back again. These
projecting parts may abut against each other and then a distance ring or ferrule
embraces both the projecting ends. The ferrule also may be dovetail in section so
that any packing placed therein would not blow out. The bolts may go either
outside or through this ring. For heavy pressures I make socket joints by screwing
a double socket piece on to the two ends of the pipe the thread of the pipe going
back sufficiently to allow screw glands upon the body of the pipe being afterwards
run onto this double socket against the packing.
In order that my invention may be clearly understood and more easily carried
into practise I have appended hereunto a double sized sheet of drawings upon
which I have fully illustrated the nature of my said improvements together with
several modifications of the same.
Figure 1., is a sectional part elevation of one form of my joint in which the end
of the pipe is enlarged to a bell month.
Figure 2., shows another a form in which the ends of the pipe are not enlarged.
Figure 3., is a further modification in which both ends of the pipe being are
enlarged in this ease.
Figure 4., illustrates an ordinary joint well known to the trade.
Figure 5., is a longitudinal section showing a very simple but effective joint.
Figure 6., shows a further modification.
In carrying my invention into effect I place the flanges B & B¹ upon the ends of
the pipes A & A so that the ends of the pipe project through the flanges after
which I enlarge the projecting pieces at a³ and a so that upon the joint being
under heavy pressure the pipes cannot be forced back the enlargements also
enabling the ends of the pipes to be drawn up tightly into the recesses d'-in the
collar against the packing d². The projecting parts a³ & at of the pipes may
abut against each other as in Figure 3 or the distance ring or collar D may be
recessed at d to receive the-ends-a-&-a-of the pipes as shown at Figure 1 the
packing d² of indiarubber or other material being provided in the recess 2 for the
ends a&a of the pipe to about against or left apart as shown by Figure 3. The
two ends are drawn together by the bolts E passing through the flanges B & B¹.
Both ends a³ & a' of the pipe may be enlarged as shown at Figure 3 and the
ferrule D³ may be dove-tail in section so that the packing d placed therein could
not blown out & the bolts E may either pass through the ring D³ or outside as
shown. Instead of enlarging the ends of the pipes as above described I may form
a collar or flange as on each end of the pipe after putting on the flanges B & B' in
which cas I provide the ferrule or socket D having the sharp edges which upon
the pipes being drawn together by the bolts E cut into the metal of the collar which
effects an excellent joint.
For heavy pressures I make socket joints such as shown by Figures 5 and 6 by
screwing the double socket piece F on to the two ends of the pipe A a thread being
formed which goes sufficiently far back to allow the screwed collars H upon the
body of the pipe to be afterwards run against the packing of the double socket the
collars H being either recessed as shown at h' or with the ends of the socket formed
so as to compress the packing d to a dovetail as shown at Figure 6.
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 :-
1st. Improvements in the joints of pipes and in the manner of manufacturing the
same consisting of the enlarged pipe end or ends with intermediate ferrule substan-
tially as and for the purpose herein set forth and shown upon the accompanying
drawings by Figures 1, 2, & 3.
2nd. Improvements in the joints of pipes and in the manner of manufacturing the
same consisting of the screw collars with intermediate sockets F and packing

page_text: substantially as and for the purpose herein set forth and shown upon the accom-
panying drawings by Figures 5 & 6.
Dated this 24th day of October 1892.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicant.