Improvements in Lead and similar Pipes, also in the Method of and Machines for the Manufacture of same.
Year: 1893

page_text: Date of Application, 16th June, 1893-Accepted, 29th July, 1893
COMPLETE SPECIFICATION.
Improvements in Lead and similar Pipes, also in the Method of and
Machines for the Manufacture of same.
I, GEORGE WAKEFIELD Fox 104 Dickenson Road Rusholme Manchester
Insurance Agent 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 consists in forming a lead or similar pipe with a coil of wire
wholly or partly embedded in the walls of same and also in the machine for
manufacturing same.
For purposes of illustration I will describe my invention with regard to a lead
pipe having a coil of wire imbedded in the walls of same. The plastic or semi
molten lead is placed in a steel cylinder and is pressed by a "raminer" or piston
through a die at the bottom of the cylinder. In this cylinder I support a revolving
mandrel the lower end of which carries the core which forms the hollow or inside
of the pipe, said core projecting into the die. This revolving mandrel is hollow
and has an eye or aperture in the side thereof at the junction of the core and
mandrel. The wire is fed into the hollow revolving mandrel off a reel or other
convenient arrangement and as the metal is pressed through between the die and
core it carries the wire with it in regular coils fed from the revolving mandrel; the
wire thus becomes embedded in the walls of the pipe as it is formed.
In order that my invention may be fully understood I will now refer to the
annexed drawings in which :-
Figure 1 is a sectional side elevation of a machine constructed according to my
invention for forming lead pipe having a wire embedded in the walls thereof.
Figure 2 is a sectional perspective view of lead pipe formed according to my
invention.
The
Referring to Figure 1 a is the piston or plunger working in the cylinder b.
arm or rod c carrying the piston is slotted to allow the bearing d, attached at c to
the cylinder b to pass through same. This bearing d carries the hollow revolving
mandrel which is caused to rotate by any suitable means such as the gear wheels g
driven by any convenient motive power. h is a holder or plate of metal which
carries the die i. j is the core for forming the hollow in the pipe. The pipe as it
is made passes, out through the aperture k in the plate to which the cylinder b is
attached. m is the wire which is fed down the hollow mandrel and out at the
"eye" or aperture n. The molten or semi-molten metal is supplied to the
cylinder by any convenient means such as an aperture in the side of the cylinder b,
or piston, a closed by a suitable cover such as a screw cap.
The action is as follows:-
The plastic metal contained in the cylinder b is forced by the piston a through the
circular aperture formed between the die i and core j. The mandrel is at the same
time caused to revolve at a suitable speed, and the wire is thus laid in the walls of
the pipe as the same is formed.
It will be seen that by varying the relative position of the eye or aperture in the
revolving mandrel and the core that the position of the wire in the walls of the
pipe may be varied. In Figure 2 p is the pipe & m the wire embedded in the walls
of same.
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 :-
(1) In lead and similar nines
nine having
9
coil of wire wholly or partly

page_text: (2) In machines for manufacturing lead and similar pipes, having a coil of wire
wholly or partly embedded in same, the method of feeding the wire into the walls
of the pipe during the process of manufacture, from an aperture in a hollow
revolving mandrel.
(3) The improved machine for manufacturing lead and similar pipe having a coil
of wire wholly or partly embedded in the walls of the pipe, consisting of a hollow
mandrel having an aperture from which the wire is fed into the walls of the pipe
during process of manufacture, said mandrel carrying a core and revolving in a
metal cylinder having a die in the bottom of same; a rammer or piston working in
said cylinder all in combination substantially as herein illustrated and described.
Dated this 16th day of June 1893.
E. EATON,
Agent for Applicant.