mprovements in the Design and Construction of Wrought Iron and Steel Pipes.
Year: 1899

page_text: Date of Application, 20th May, 1899
Complete Specification Left, 5th Jan., 1900-Accepted, 17th Feb.,
1900
PROVISIONAL SPECIFICATION.
mprovements in the Design and Construction of Wrought Iron and
Steel Pipes.
I, JAMES JENNINGS ROBINS, of 10, Vernon Street, Derby, Managing Director of
the Phoenix Foundry Company, Ltd., Derby, do hereby declare the nature
of this invention to be as follows:-
An improved method of constructing pipes for all purposes in wrought iron
or steel, in large or small sizes.
The smaller diameters of pipes I prefer to make with two plates which may be
of any thickness or length suitable for the purpose intended. These plates are
preferably placed in a furnace or muffle until they have attained sufficient heat,
when they are withdrawn and placed between blocks or dies in a suitable hydraulic
or other press--the blocks being shaped so that preferably one side and one end
of the plate are joggled back the thickness of the plate for a sufficient breath
previously determined upon. After being thus pressed the plates are placed
together so that when the two side seams formed by the joggles are rivetted or
otherwise fastened, a pipe has been formed of cylindrical or other desired shape
according to the dies used, one end being the ordinary diameter of the pipe,
known as the "spigot" end, and the other end formed and known as the "socket"
end. When two or more such pipes have been placed end to end-each "spigot"
end placed in a socket end and all joints fastened by rivetting or other approved
means, pipes of any desired length are produced. For pipes of larger diameter,
three or more plates are used, being treated in the manner above described.
When it is not intended to rivet or otherwise fasten short lengths of pipes to
each other, I make the end joggle on the plates deeper than ordinarily, preferably
also shaping or dishing it slightly in the manner commonly used in cast iron
socket" end, there is a
spigot" end is inserted in a
pipes, so that when a
free space all round. This space can then be caulked in the ordinary manner, or
by any other approved means.
66
66
It will be understood that both ends of the pipes may be made of either the
spigot" or socket" formation, or both sides of the plates joggled out or left
plain, as may be desired to suit special circumstances or requirements.
1900
1900
Dated this Nineteenth day
JAS. J. ROBINS.
COMPLETE SPECIFCIATION.
Improvements in the Design and Construction of Wrought Iron and
Steel Pipes.
I, JAMES JENNINGS ROBINS, of 10, Vernon Street, Derby, Managing Director of
the Phoenix Foundry Company, Limited, Derby, do hereby declare the nature
COMPLETE SPECIFCIATION.
Improvements in the Design and Construction of Wrought Iron and
Steel Pipes.
I, JAMES JENNINGS ROBINS, of 10, Vernon Street, Derby, Managing Director of
the Phoenix Foundry Company, Limited, Derby, do hereby declare the nature

page_text: of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement: -
,
The object of the present invention is to produce wrought metal pipes suitable
for a variety of uses in an economical manner and in a form capable of convenient
stowage for transport or shipment.
In carrying out my invention I make the, pipes of sections of sheet metal
stamped in dies by means of hydraulic or other pressure to such a form that they
can be readily fitted together to make pipes with spigot and socket ends, which
can be joined up into continuous lengths to any desired extent.
In the accompanying drawings I have shown, my invention in two forms.
Figs. 1 and 2 are perspective and end views of one form of pipe, and
Fig. 3 is..a longitudinal section, showing the spigot and socket ends fitted
together.
The remaining figures are illustrative of a slightly modified form.
Figs. 4 and 5 being perspective and end views corresponding with Figs. 1 and 2.
Fig. 6 is an outside view of the spigot end of the modified pipe; and
Fig. 7 is an end view showing a number of pipe sections nested together for
transport.
In carrying out the manufacture of pipes according to my invention plates of
suitable dimensions are heated in a furnace or muffle to a requisite degree. They
are then submitted to the action of dies in an hydraulic or other press. In this
press the plates are bent transversely to a predetermined curve and at one end
the metal is joggled back to form a socket. The opposite end is not so changed
and forms the spigot. The plates are moreover joggled or bent over at the side
or sides to form means of attachment to one another.
In Figs. 13 the plates. A. A are a pair from which one length of pipe is
formed. Each plate is formed with a socket portion as at a at one side each is
provided with a joggled back portion which furnishes a recess for receiving the
plain edge of the companion plate. The edges fitted together as shown are secured
by bolts and nuts or other suitable means. Thus is formed a length of pipe
which is furnished with a socket end capable of receiving the spigot of an
adjacent length, and of providing a spigot for entering the socket of another
length.
In the modified form shown at Figs. 4 to 7 the plates provided with side
flanges instead of the joggled back portions shown in the other figures. The
socket ends of the pipes are provided as before but at the spigot ends the
flanges have to be cut, as at Fig. 6 to facilitate the engagement of socket and
spigot, as at Fig. 4. In these figures the flanges are shewn as bent outwards they
may however be turned inwardly if preferred, and in that case the cutting at the
spigot ends will not be necessary.
For transport the sections of pipe are nested together as shown at Fig. 7 and
in that way they occupy but little space.
The fitting together of the sections which are all identical and interchangable, is
an easy matter and requires no skilled labour. The bolt holes are all prepared
during manufacture by punching or drilling at regular intervals.
For the smaller sizes of pipes but two sections for each length of pipe as
shown in the drawings are desirable but for the larger sizes which may be up to
any required number of feet in diameter there may be three or more sections in
each length, all identical and interchangable, as in the case of the two sections.
The ultimate configuration of the pipe may be cylindrical or of other form accord-
ing to the curve of the sections employed. Any number of pipe lengths may be
fitted together, and secured by bolts. Caulking may be employed for the joints
if desired; the sections however leave the dies so accurately formed, that caulking
is only necessary when exceptionally tight joints are required.
From the foregoing it will be seen that by my invention, great advantage to the

page_text: consumers of wrought iron and steel pipes are provided by reason of the economy
of space and labour afforded in transport and use.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
:-
In the manufacture of wrought iron and steel pipes the construction and
employment of interchangable sections, as described, stamped out of sheet metal
and prepared for fixing together substantially as set forth.
Dated this 5th day of January 1900.
NEWTON & SON,
Agents for the Applicant.