Improvements in Apparatus for the Manufacture of Metallic Pipes and Rods, and for Covering Electric Telegraph and Telephone Cables and Wires.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for the Manufacture of Metallic Pipes
and Rods, and for Covering Electric Telegraph and Telephone
Cables and Wires.
I, ALEXANDER WYLIE, of the Vulcan Works, Johnstone, near Glasgow, Engineer
do hereby declare the nature of my said invention to be as follows
My invention relates to apparatus for which I have obtained Letters Patent dated
29th November 1888, No. 17,420; and the object of my present invention is to effect
further improvements in such apparatus.
The first part of my invention consists in the construction of containers for new
lead pipe machines, or applying them to existing lead pipe machines, and for cores
for forming the insides of the pipes, and dies for forming the outsides of the pipes ;
and relates to containers for holding lead, molten or solidified, and constructed with
chambers for heating by steam, hot air, hot water, or otherwise; also for the
production at one operation of one, two, three, four or more pipes or rods, from out-
lets in the sides in a horizontal, vertical, or other position, having cores and dies
affixed therein, of similar or various diameters. The container is filled with lead or other
metal or metals, and operated upon by a solid plunger, or a hollow plunger with a solid
die, or die of any design to produce the desired thickness of pipes or coverings
on cables, either upon lead pipe presses, formed to operate upon the principle known
in the trade as the upward or downward principle, producing pipes and rods of any
desired length and weight per yard. Suitable pyrometers or thermometers are also
fitted for indicating the temperature of the lead containers, or parts in connection
therewith.
The second part of my invention consists in the construction of containers for new
lead pipe machines with chambers for heating by steam, hot air, hot water, or other-
wise, applicable also to existing lead pipe machines, and its object is to provide an
arrangement of cores and dies placed horizontally or otherwise in containers of lead
pipe machines, whereby telegraph and telephone cables, and wires for electric
purposes may be covered with lead or other metallic compounds in long lengths.
The object of the third part of my invention is to prevent injury to the insulated
coverings of the cables or wires by the heat of the lead or lead container during the
process of covering.
The lead container is placed upon a resting block on the top of a water piston or
ram of the lead pipe machine or hydraulic press, in a manner similar to that of
using a lead container in making lead pipes, but a hollow block, specially designed
and constructed, is attached to the underside, which is constructed with water
chambers, in which a free circulation of cold water kept continually flowing, for the
purpose of keeping the hollow block cool, and preventing the cable being injured by
heat.
I also construct a specially designed core and die box to fit into the hollow block.
This core and box is constructed with specially designed passages to regulate the flow
of the metal to the core and die, and for causing it to flow equally under pressure, so
as to cover cables or form pipes true and of uniform thickness. The core and dies

page_text: for determining the thickness of lead covering are inserted in this box from the outside
and regulated by means of screws. The cores for guiding the cables through the
hollow block horizontally inay be constructed hollow or double cased, so as to admit
of a constant free circulation of cold water, for keeping the cores cool, and preventing
the cables being injured by heat. In starting to cover cables the core is screwed up
against the die, to prevent the lead passing through the side of the hollow block, on
the underside of the container; the cable is passed through this core, and when the
lead is sufficiently cold in the container, the core is unscrewed back a little, to allow
the lead or other compound to pass round the same, for the purpose of covering the
cable. Instead of passing the cable through a body of molten lead or other
compound, it is only exposed to the action of the molten or solidified lead or other
compound at the point of contact.
The object of the fourth part of my invention is to cover with lead or other
compound, a series of cables forming insulated covering at one operation, by means
of cores and dies, similar in construction to that described in the third part of this
specification, and for the purpose of covering any number of telegraph or telephone
cables or wires by lead pipe lining or coating by hydraulic pressure in lead pipe
machines, or hydraulic presses and containers therefor.
1000
Improvements in Apparatus for the Manufacture of Metallic Pipes
and Rods, and for Covering Electric Telegraph and Telephone
Cables and Wires.
I, ALEXANDER WYLIE of the Vulcan Works, Johnstone near Glasgow Engineer. 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 relates to apparatus for which I have obtained Letters Patent dated
29th November 1888, No 17,420; and the object of my present invention is to effect
further improvements in such apparatus.
The first part of my invention consists in the construction of containers for new lead
pipe machines, or applying them to existing lead pipe machines, and for cores for
forming the insides of the pipes, and dies for forming the outsides of the pipe, and
relates to containers for holding lead, molten or solidified, and constructed with
chambers for heating by steam, hot air, hot water, or otherwise; also for the production
at one operation of one, two, three four or more pipes or rods, from outlets in the
sides, in a horizontal, vertical, or other position, having cores and dies affixed therein,
of similar or various diameters. The container is filled with lead or other metal or
metals, and operated upon by a solid plunger, or a hollow plunger with a solid die, or
die of any design to produce the desired thickness of pipes or coverings on cables,
either upon lead pipe presses, formed to operate upon the principle known in the
trade as the upward or downward principle, producing pipes and rods of any desired
length and weight per yard. Suitable pyrometers or thermometers are also fitted for
indicating the temperature of the lead containers, or parts in connection therewith.
The second part of my invention consists in the construction of containers for new
lead pipe machines with chambers for heating by, steam, hot air, hot water, or other-
wise applicable also to existing lead pipe machines; and its object is to provide an
arrangement of cores and dies placed horizontally or otherwise in containers of lead

page_text: pipe machines, whereby telegraph and telephone cables, and wires for electric purposes
may be covered with lead or other metallic compounds in long lengths.
The object of the third part of my invention is to prevent injury to the insulated
coverings of the cables or wires by the heat of the lead or lead container during the
process of covering.
The lead container is placed upon a resting block on the top of a water piston or
ram of the lead pipe machine or hydraulic press, in a manner similar to that of using
a lead container in making lead pipes, but a hollow_block, specially designed-and
constructed, is attached to the underside, which is constructed with water chambers,
in which a free circulation of cold water is kept continually flowing, for the purpose of
keeping the hollow block cool, and preventing the cable being injured by heat.
I also construct a specially designed core and die box to fit into the hollow block.
This core and die box is constructed with specially designed passages to regulate the
flow of the metal to the core and die, and for causing it to flow equally under pressure,
so as to cover cables, or form pipes true and of uniform thickness.
The core and dies for determining the thickness of lead covering are inserted in
this box from the outside and regulated by means of screws. The cores for guiding
the cables through the hollow block horizontally may be constructed hollow or double
cased, so as to admit of a constant free circulation of cold water, for keeping the cores
cool, and preventing the cables being injured by heat. In starting to cover cables
the core is screwed up against the die, to prevent the lead passing through the side
of the hollow block, on the underside of the container; the cable is passed through this
core, and when the lead is sufficiently cold in the container, the core is unscrewed
back a little, to allow the lead or other compound to pass round the same, for the
purpose of covering the cable. Instead of passing the cable through a body of molten
lead or other compound, it is only exposed to the action of the molten or solidified
lead or other compound at the point of contact.
The object of the fourth part of my invention is to cover with lead or other
compound, a series of cables forming insulated coverings at one operation, by means
of cores and dies, similar in construction to that described in the third part of this
specification, and for the purpose of covering any number of telegraph or telephone
cables or wires by lead pipe lining or coating by hydraulic pressure in lead pipe
machines, or hydraulic presses and containers therefor.
And in order that my said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Fig 1 is an elevation (partly in section) showing the general arrangement of my
hydraulic pipe press.
Fig. 2 is an enlarged sectional elevation of the upper part of Fig 1.
Fig 3 is a plan of Fig. 2.
Fig 4 is an enlarged sectional elevation of the improved bottom block.
Fig. 5 is a sectional elevation of the same, at right angles to that shown in Fig. 4.
is the water cylinder, p is the ram, and a is the container resting upon the bottom
block c, the whole being sustained by the ramp and raised and lowered therewith
and thereby. m is an inlet for water to the small ram w, within the ram p, and
serving for the removal of the core and die from the hollow block bottom. b is the
fixed plunger and n is the lead or other metal or metallic compound under pressure.
The container a (Figs. 1, 2, and 3) is jacketed, an outer cylinder d, d, being fitted
thereto, leaving spaces e e for the reception of steam, hot air, hot water, or other
suitable heated fluid, for keeping the container at a suitable temperature. The
heating fluid is caused to circulate in the jacket or chamber, by means of pipes j, k,
the heated fluid entering at the top by the pipe j and the cooler fluid passing out by
the pipe k.
A
c is my improved core and die box, into which the cores and dies are screwed.
constant supply of cold water is kept up through the passages c² c² by a pump or
other suitable means. By this continuous supply of water the core seat and die
box ff, constructed in halves, are kept cold, thus preventing injury from heat to the

page_text: cable while being covered. g is the die, which governs the thickness of the covering
to the cable. The position of the core h for guiding the cable while being covered, is
made adjustable by means of the screw thread at s, s, (Fig 4) whereby the relative
positions of the core h and die g can be regulated. ii (Fig 5) are the passages for
the metal, as indicated by the arrows which passages, and also the bridge I, are
specially constructed to regulate the flow of lead to the core and die, the die being
specially constructed for regulating the lead, and causing its equal flow under
pressure.
From these passages the metal is forced through the die g, and caused to surround
the cable o, as a solid drawn or seamless coating thereto. indicates a suitable
position for fixing a thermometer or a pyrometer for indicating the temperature of the
container.
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 machinery for covering electric telegraph and telephone cables with lead
or other metal or metallic compounds, the application and use of a jacket e to
the container, a, for the reception of steam, hot air, hot water, or other suitable
heating fluid, and one two, or more thermometer or thermometers or other heat
indicators, substantially as and for the purposes herein before described and
illustrated by the drawings.
2 In machinery for covering electric telegraph and telephone cables with lead
or other metal or metallic compounds, the combination with the container a and
plunger of the hollow or cellular bottom c having water chambers and passages c¹
for the inlet and outlet of cold water; the core seat and die box f f¹ formed in
two parts, for securing the die g in position, the die g regulating the external
diameter of the covering of the cable, and the core seat and die box f f¹ with
suitably formed cavities at the top and bottom for securing uniformity of flow
and covering under pressure, substantially as and for the purposes herein before
described and illustrated by the drawings.