IMPROVED APPARATUS TO BE USED IN CONNECTION WITH MACHINERY FOR COVERING ELECTRICAL CONDUCTORS WHICH APPARATUS IS ALSO APPLICABLE TO OTHER PURPOSES
Year: 1884

page_text: We GEORGE CROSLAND TAYLOR of Deeside Electric and Gutta Percha Works,
Neston in the County of Chester, Electrical Engineer, and EDWIN THOMAS TRUMAN
of 23 Old Burlington Street, in the County of Middlesex, Surgeon do hereby declare
the nature of our invention for "IMPROVED APPARATUS TO BE USED IN CONNECTION
WITH MACHINERY FOR COVERING ELECTRICAL CONDUCTORS WHICH APPARATUS IS
ALSO APPLICABLE TO OTHER PURPOSES" to be as follows:-
In the Specification of former Letters Patent granted to Edwin Thomas Truman
and dated 15th February 1872 N° 482 he explained that in the ordinary method
of covering wire for electrical purposes with plastic material the wire in its passage
from the delivering drum to the receiving drum was passed through a die filled
with the plastic material and did not rotate on its own axis on its line of travel.
The improvement which he then described essentially consisted in causing the wire
to rotate on its own axis during its passage from one drum to another and while it
was passing through the die or nozzle of the covering machine. This operation
required a special arrangement of apparatus to effect this double action, that is to
say, the motion or travel of the wire from drum to drum and rotary motion on its
own axis.
1.34
In the Specification of subsequent Letters Patent dated 9th January 1874 N° 124
he described an easy and effectual means for rotating the wire on its own axis
during its passage from drum to drum. This he effected by causing the wire to be
diverted from a straight line into the form of a bend or crank, and by means of
rotating friction rollers to which a double action was imparted he caused the wire
to receive the same double action; he likewise described the motions that the arms
or drums were to take and, in the Specification of later Letters Patent dated
14th August 1880 N° 3310, he stated that the drum off which the wire was received
might be made to rotate on its centre as is well understood in rope making to
prevent twisting the wire itself. The improved apparatus which forms the subject
of the present invention is a modification of and improvement upon the arrange-
ments described in the said former Specifications.
We find that in- these covering machines it is desirable to deliver the wire in a
line with the axis of the drum or bobbin from which it unwinds and to have the
tension at which it is delivered uniform. In order to attain these objects we
mount the drum loosely upon a shaft which can be rotated by any suitable means,
and at one end of the drum we mount upon the shaft an arm or frame which
f

page_text: revolves with the shaft. Over this arm or frame which may he provided with one
or more guide rollers we lead the wire from the drum to a point in line with the
axis of the drum and shaft and thus divert it from its line of travel and from this
point we conduct it in the same axial line to the covering machine; by preference
we conduct it through the shaft itself which is made hollow or tubular for the
purpose. The drum, the arm or frame, and the wire will thus participate in the
rotary motion given to, the shaft, and the wire which is delivered from the arm or
frame will revolve on its own axis without receiving twist. Upon the shaft we
place a grooved disc which we affix to the drum and over this disc we carry a
weighted cord or strap which acts as a brake to retard the rotation of the drum.
In connection with this disc we use another brake which by preference consists of
a non-rotating disc that by means of a lever with adjustable weight can be caused
to produce more or less friction upon the other or rotating disc; a washer is placed
between the 2 discs.
The shaft being caused to rotate the drum rotates with it but it at the same
time slips upon the shaft so as to allow the wire to unwind, this unwinding being
caused by the action of draw rollers or by the machine to which the wire is
conducted; the speed of the drum's rotation is however controlled by. the friction
of the brakes which regulates the tension at which the wire is. delivered and this
friction can be increased or diminished as required by adjusting the weights upon
the cord or lever.
Where several wires are required to be supplied to the same machine the several
drums can be mounted upon the same shaft and the wires can either be all led
over one arm or frame or over separate arms or frames, and then to the covering
machine. Or, instead of mounting all the drums directly upon the shaft, one drum
may be mounted upon the shaft, another drum upon a sleeve which connects the
first drum with its brake disc, a third drum on a sleeve which connects the second
drum with its brake disc, and so on, the sleeve of each drum thus acting as the
bearing for the next drum. Each drum is provided with a grooved disc to receive
a brake cord or strap as above described.
core with tape, bands,.
core to be covered, is
tape or other material
Our apparatus can be employed for covering a wire or
thread or other material. For this purpose the wire or
carried through the hollow shaft above described and the
from the drum is delivered to the wire or core at the end of the arm or frame
above explained and becomes wound spirally round the wire by gradual advance of
the latter.
Our apparatus can also be employed for taking up or coiling wire or other.
material upon a drum, bobbin or recl, in this case the wire (or material) is led to
the end of the arm or frame which is next the rotating shaft and then over the
arm or frame to the drum. One useful application of the apparatus for taking up
or coiling is to take up or coil the cable at the end of the covering machine. We
may thus use one of our apparatus to deliver the wire or wires to the covering,
machine and another to take up the cable when made.
Our apparatus is also capable of being applied for other purposes where uniform
tension is desirable in a wire, tape, band, cord, thread or other like material which
is being delivered from or taken up or coiled upon a drum, bobbin or reel.
In any of the applications one or more of the guide wheels on the arm or frame
before described may have a given speed imparted to it by means of suitable
gearing so that the speed of travel of the wire can be regulated as it comes off or
goes on to the drum.
2004
J. C. MEWBURN,
169, Fleet Street, London,
Agent for the Applicants.

page_text: Improved Apparatus to be Used in Connection with Machinery
•
for Covering Electrical Conductors, which Apparatus is also
Applicable to other Purposes.
We GEORGE CROSLAND TAYLOR of Deeside Electric and Gutta Percha Works,
Neston in the County of Chester Electrical Engineer, and EDWIN THOMAS TRUMAN
of 23 Old Burlington Street, in the County of Middlesex, Surgeon do hereby
declare the nature of our invention for IMPROVED APPARATUS TO BE USED 'IN
CONNECTION WITH MACHINERY FOR COVERING ELECTRICAL CONDUCTORS WHICH
APPARATUS IS ALSO APPLICABLE TO OTHER PURPOSES and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
In the Specification of former Letters Patent granted to Edwin Thomas Truman
and dated 15th February 1872 N° 482 he explained that in the ordinary method
of covering wire for electrical purposes with plastic material the wire in its passage
from the delivering drum to the receiving drum was passed through a die filled
with the plastic material and did not rotate on its own axis on its line of travel.
The improvement which he then described essentially consisted in causing the wire
to rotate on its own axis during its passage from one drum to another and while it
was passing through the die or nozzle of the covering machine. This operation
required a special arrangement of apparatus to effect this double action, that is to
say, the motion or travel of the wire from drum to drum and rotary motion on its
own axis.
In the Specification of subsequent Letters Patent dated 9th January 1874 N° 124
he described an easy and effectual means for rotating the wire on its own axis
during its passage from drum to drum. This he effected by causing the wire to
be diverted from a straight line into the form of a bend or crank, and by means of
rotating friction rollers to which a double action was imparted he caused the wire
to receive the same double action; he likewise described the motions that the arms
or drums were to take and, in the Specification of later Letters Patent dated
14th August 1880 N° 3310, he stated that the drum off which the wire was
received might be made to rotate on its centre as is well understood in rope
making to prevent twisting the wire itself. The improved apparatus which forms
the subject of the present invention is a modification of and improvement upon the
arrangements described in the said former Specifications.
'We find that in these covering machines it is desirable to deliver the wire in a
line with the axis of the drum or bobbin from which it unwinds and to have the
tension at which it is delivered uniform. In order to attain these objects we
mount the drum loosely upon a shaft which can be rotated by any suitable means,
and at one end of the drum we mount upon the shaft an arm or frame which
revolves with the shaft. Over this arm or frame which may be provided with one
or more guide rollers we lead the wire from the drum to a point in line with the
axis of the drum and shaft and thus divert it from its line of travel and from this
point we conduct it in the same axial line to the covering machine; by preference
we conduct it through the shaft itself which is made hollow or tubular for the
purpose. The drum, the arm or frame, and the wire will thus participate in the
rotary motion given to the shaft, and the wire which is delivered from the arm or
frame will revolve on its own axis without receiving twist. Upon the shaft we

page_text: place a grooved disc which we affix to the drum and over this disc we carry a
weighted cord or strap which acts as a brake to retard the rotation of the drum.
In connection with this disc we use another brake which by preference consists of
a non-rotating disc that by means of a lever with adjustable weight can be caused
to produce more or less friction upon the other or rotating disc; a washor is placed
between the two discs.
+
The shaft being caused to rotate the drum rotates with it but it at the same
time slips upon the shaft so as to allow the wire to unwind, this unwinding being
caused by the action of draw rollers or by the machine to which the wire is
conducted; the speed of the drum's rotation is however controlled by the friction
of the brakes which regulates the tension at which the wire is delivered and this
friction can be increased or diminished as required by adjusting the weights upon
the cord or lever.
Where several wires are required to be supplied to the same machine the several
drums can be mounted upon the same shaft and the wires can either be all led
over one arm or frame or over separate arms or frames and then to the covering
machine. Or, instead of mounting all the drums directly upon the shaft, one drum
may be mounted upon the shaft, another drum upon a alceve which connects the
first drum with its brake disc, a third drum on a sleeve which connects the second
drum with its brake disc, and so on, the sleeve of each drum thus acting as the
bearing for the next drum. Each drum is provided with a grooved disc to receive
a brake cord or strap as above described.
Our apparatus can be employed for covering a wire or core with tape, bands,
thread or other material. For this purpose the wire or core to be covered, is
carried through the hollow shaft above described and the tape or other material
from the drum is delivered to the wire or core at the end of the arm or frame
above explained and becomes wound spirally round the wire by gradual advance
of the latter.
Our apparatus can also be employed for taking up or coiling wire or other
material upon a drum, bobbin or reel; in this case the wire (or material) is led to
the end of the arm or frame which is next the rotating shaft and then over the
arm or frame to the drum. One useful application of the apparatus for taking up
or coiling is to take up or coil the cable at the end of the covering machine.
may thus use one of our apparatus to deliver the wire or wires to the covering
machine and another to take up the cable when made.
We
Our apparatus is also capable of being applied for other purposes where uniform
tension is desirable in a wire, tape, band, cord, thread or other like material which
is being delivered from or taken up or coiled upon a drum, bobbin or reel.
In any of the applications one or more of the guide wheels on the arm or frame
before described may have a given speed imparted to it by means of suitable
gearing so that the speed of travel of the wire can bo regulated as it comes off or
goes on to the drum.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
The apparatus constructed and acting substantially as hereinbefore described for
use in connection with machinery for covering electrical conductors or for other
purposes.