mprovements in the Manufacture of Conduits for Electrical Conductors and other purposes and in Apparatus therefor.
Year: 1899

page_text: Date of Application, 19th May, 1899
Complete Specification Left, 17th Feb., 1900-Accepted, 31st Mar., 1900
mprovements in the Manufacture of Conduits for Electrical Conductors
and other purposes and in Apparatus therefor.
I, HARRY SCOTT MORRISON, of Danesbury House, Nuneaton, in the County of
Warwick, Civil Engineer, do hereby declare the nature of this invention to be
as follows:--
This invention relates to the moulding of multitubular conduits for electrical
conductors and other purposes.
The material to form the conduit is fed into the mould which is of a length
about one-third greater than that of the finished conduit and has its lid and one
end hinged while the other end carries the rods or tubes forming the cores.
After the proper amount of material has been placed in the mould the lid is
fastened down and the material is compressed to the proper size by a plunger
perforated to allow of the passage of the cores and fixed to the piston rod or
ram of a hydraulic or other cylinder such rod or ram passing through the fixed
end of the mould.
When the compression is complete the end of the mould is opened and the
conduit is expelled from the mould by the plunger. A metal plate is placed
on the bottom of the mould to serve as a carrier and rollers may be provided to
one of the rods
receive the plate and conduit as they issue from the moulds. To expel the
plate from the mould it, is convenient to provide a pin on
actuating the plunger which rod is so fixed as to engage with the plate when
required.
In order to keep the cores steady I may form on the hinged end of the mould
projections to engage with recesses in the ends of the cores..
1900
Improvements in the Manufacture of Conduits for Electrical
and other purposes and in Apparatus therefor.
I, HARRY SCOTT MORRISON, of Danesbury House, Nuneaton, in the County of
Warwick, Civil Engineer, 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 the moulding of multitubular conduits for electrical
conductors and other purposes.
The material to form the conduit is fed into the mould which is of a length

page_text: about one-third greater than that of the finished conduit and has its lid and one
end hinged while the other end carries the rods or tubes forming the cores.
After the proper amount of material has been placed in the mould the lid is
fastened down and the material is compressed to the proper size by a plunger
perforated to allow of the passage of the cores and fixed to the piston rod or
ram of a hydraulic or other cylinder such rod or ram passing through the
fixed end of the mould.
When the compression is complete the end of the mould is opened and the
conduit is expelled from the mould by the plunger. A metal plate is placed on
the bottom of the mould to serve as a carrier and rollers may be provided to
receive the plate and conduit as they issue from the moulds. To expel the plate
from the mould it is convenient to provide a pin on one of the rods actuating
the plunger which rod is so fixed as to engage with the plate when required; or
the plate may be expelled by the plunger direct.
In order to keep the cores steady I may form on the hinged end of the mould
projections to engage with recesses in the ends of the cores.
Figure 1 of the drawings is a longitudinal section of a mould for forming a
conduit according to my invention and Figures 2 and 3 are cross sections on the
lines 2-2, 3-3 in Figure 1.
a is the body of the mould which has a lid hinged at b and kept fastened
when required by pins and cotters or other convenient means while of its two
ends the one c is fixed and the other d is hinged and can be fastened as at .
The cores are formed of tubes e fixed to the end c and supported at their other
ends when the door d is closed by projections thereon. A plunger f which
is perforated for the passage of the cores moves in the mould being connected
by rods to the piston or ram of a hydraulic or other cylinder. 9 is a metal
plate serving to carry the conduit and pushed out onto rollers h.
The plunger and end d are so formed as to give the usual spigot and socket
to the conduit.
'
In order to make a conduit, the lid b is opened, the end is fastened, the
plunger is drawn back as far as desirable and a plate 9 inserted. Sufficient
material to form a conduit of the desired length is poured in, the lid is fastened
and the plunger moved forward so as to compress the material to the proper
length and partly pushing the plate g out under the end d. The plunger is
stopped, the end d opened and the plunger again moved forward to expel the
conduit and its plate onto the transporting roller h..
A similar mould may if desired be placed on the further side of the power
cylinder.
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. A mould for conduits formed with a movable lid and one movable end and
having a plunger sliding in it substantially as described.
2. The loose metal plate g inside the mould to carry the conduit substantially
as described.
3. Moulds for conduits substantially as described and illustrated in the
drawings.
101
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