AN IMPROVED COILING PRO
Year: 1881

page_text: LETTERS PATENT to Charles Leigh Clarke and John Leigh, both of Manchester,
in the County of Lancaster, for an Invention of
MACHINE,"
"
AN IMPROVED COILING
PROVISIONAL SPECIFICATION left by the said Charles Leigh Clarke and
John Leigh at the Office of the Commissioners of Patents on the 22nd
August 1881.
CHARLES LEIGH CLARKE and JOHN LEIGH, both of Manchester, in the County
of Lancaster. "AN IMPROVED COILING MACHINE."
This Invention relates to the construction of a machine designed principally for
coiling wire and thread side by side in forming unduction and resistance coils
according to our Invention, for which we have obtained Her Majesty's Letters
Patent, No. 2229, dated June 1st, 1880, but the improved machine may (with very
alight modification) be adapted for forming induction coils of covered wire, or for
other similar coiling purposes.
Upon a suitable frame or bed we mount two head stocks (somewhat similar to
a lathe) the fixed head stock being provided with a revolving spindle fitted with
fast and loose pulleys.
On the outer end of the spindle is keyed a spur wheel, opposite to which (but
not in gear with it), is another spur wheel keyed on to the end of a screwed
spindle mounted in a fixed frame at the back of the bed; and this frame has two
horizontal parallel rods or bars forming a slide, on which moves a carriage provided
with a nut travelling on the screwed spindle, and moving the carriage to the
right or left, according to the direction in which the screwed spindle is driven.
Upon a swinging bracket are mounted two small carrier pinions in gear with
each other, and so arranged that (according to the position of the bracket) the
spur wheel can communicate motion to that on the end of the screwed spindle,
either through the first pinion only or through both pinions, or that both shall be
out of gear. It will be evident that as these pinions are geared together, and
hence revolving in opposite directions, the screwed spindle will be driven either
forwards or backwards, according to which pinion is thrown into gear, and that

page_text: when in the intermediate position with both carrier pinions out of gear, the screwed
spindle will remain stationary.
The screwed spindle. is also provided with a hand wheel, by means of which
(whon out of gear) it can be turned in either direction.
The inner ends of the spindles of both headstocks are fitted with suitable chucks
for the purpose of holding the heads of the bobbins on which the coils are to be
made.
•
To the carriage before named is attached the guide over which the wire and
thread passes to the bobbin. This guide may either be in the form of a notched
bar or a fine V-grooved roller, the latter by preference, as the wire is apt to cut
into the bar if stationary, which the rolling movement in a great measure
prevents.
-
The wire and the thread are wound on separate bobbins placed in a frame at the
back, and each is carried through a separate "tension" (similar to that of a sewing
machine), and then between two glass rods to the guide, from whence they pass
side by side onto the bobbin in the form of a coil.
In forming an induction coil with this apparatus the attendant first puts on the
bobbin a layer of paraffine paper, and having fastened the ends of the wire and
thread to one end of the bobbin (or to the central disc) he first gives the screwed
spindle a turn by hand so as to give the guide a slight "lead," and bring the wire
and thread side by side. He then puts one of the carrier pinions in gear, and
moves the strap onto the fast pulley, which will set the headstock spindle and
bobbin revolving, and move the guide from one end of the bobbin to the other so
as to form a single coil. As soon as the coil has arrived at the other end of the
bobbin he moves the strap onto the loose pulley and applies a brake with his foot
or otherwise, and at the same time a second attendant puts both carrier pinions
out of gear, thus stopping the movement of the bobbin and the guide
simultaneously.
The first attendant then winds on a paraffine or plain paper, and his assistant
bringing the other carrier pinion into gear and the strap onto the fast pulley winds
on another coil in the reverse direction, and so on alternately till the coil has
assumed the required diameter.
If these changes are made by hand it is evident that two persons will be
required to work the machine, but in order to make these movements automatic
we propose to attach to the machine a sliding bar having two adjustable pro-
jections or tappets, one on each side of the guide carrier, so arranged that when the
latter has nearly finished its course in either direction it comes against one of
these projections or tappets and carries the sliding bar with it, and this movement
of the sliding bar acts upon the strap fork and brake and upon the swinging
bracket in such a way as to produce the desired changes of motion, so that one
attendant only will be required to work the machine.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charles Leigb Clarke and John Leigh in the Great Seal Patent
Office on the 22nd February 1882.
CHARLES LEIGH CLARKE and JOHN LEIGH, both of Manchester, in the County
of Lancaster. "AN IMPROVED COILING MACHINE."
This Invention relates to the construction of a machine designed principally for
coiling wire and thread side by side in forming induction and resistance coils
according to our Invention, for which we have obtained Her Majesty's Letters
Patent, No. 2229, dated June 1st, 1880, but the improved machine may (with very
slight modification) be adapted for forming induction coils of covered wire only, or
for other similar coiling purposes.
Such being the nature and object of our said Invention, we will now proceed to
describe the manner in which the same is to be or may be performed or carried
into practical effect; and in order that the saine may be clearly understood, we
have annexed hereunto a Sheet of Drawings illustrative thereof, and have marked
the same with figures and letters of reference corresponding with those in the
following explanation thereof :-
Fig. 1 in the annexed Drawing is a front elevation of our improved coiling
machine.
Fig. 2 is a plan view; Fig. 3, an end view; and Fig. 4 a vertical section of same
(through about the line A, B, Fig. 1.)
Upon a suitable frame or bed we mount two head stocks a, a, and b, b, (somewhat
similar to a lathe), the fixed headstock b, b, being provided with a revolving
spindle c, c, fitted with fast and loose pulleys d, d. On the outer end of the
spindle c, c, is keyed a spur wheel e, e, opposite to which (but not in gear with it)
is another spur wheel f,f, keyed on to the end of a screwed spindle g, g, mounted
in a fixed frame h, h, at the back of the headstock b, b, and this frame has two
horizontal parallel V-slides i, i, on which moves a carriage k, k, provided with a
nut,, travelling on the screwed spindle g, g, and moving the carriage k, k, to the
right or left, according to the direction in which the screwed spindle g, g, is
driven.
Upon a swinging bracket m, m, are mounted two small carrier pinions n, n¹, in
gear with each other, and so arranged that (according to the position of the
bracket m, m,) the spur wheel e, e, can communicate motion to the spur wheel f, f,
on the end of the screwed spindle g, g, either through the first pinion n only, as
shown, or through both pinions, or that both shall be out of gear. It will be
evident that as these pinions n, n¹, are geared together, and hence revolving
in opposite directions, the screwed spindle g, g, will be driven either forwards or
backwards, according to which pinion is thrown into gear, and that when in the
intermediate position with both carrier pinions n, n', out of gear the screwed
spindle g, g, will remain stationary.
The screwed spindle g, g, is also provided with a hand wheel o, o, by means of
which (when out of gear) it can be turned in either direction.
The inner ends of the spindles of the headstocks are fitted with suitable spring
(or other) chucks p, p, for the purpose of holding the heads of the bobbin q, q, on
which the coil is to be made.
To the carriage k, k, before named is attached the guide r, r, over which the
wire 8, 8, and thread t, t, pass to the bobbin. This guide may either be in the
form of a notched bar or a fine V-grooved roller, the latter by preference, as the
wire is apt to cut into the bar if stationary, which the rolling movement in a great
measure prevents.

page_text: <
The wire and the thread are wound on separate bobbins placed in a frame at
the back, not shown on the Drawing, and each is carried through a separate
"tension" u, u, (similar to that of a sewing machine), and then between two glass
rods, or direct to the guide r, r, from whence they pass side by side onto the
bobbin q, q,
in the form of a coil.
"
In forming an induction coil with this apparatus the attendant first puts on the
bobbin q, q, a layer of paraffine paper, and having fastened the ends of the wire 6, 8,
and thread t, t, to one end of the bobbin (or to the central disc), he first gives
the screwed spindle g, g, a turn by hand by means of the hand wheel v, v, so as to
give the guide r, r, a slight "lead," and bring the wire a and thread t side by side.
He then puts one of the carrier pinions n, n', in gear by means of a lever x, x, and
moves the strap onto the fast pulley d by means of the strap fork %, %, which will
set the headstock spindle c, c, and bobbin q, q, revolving, and move the guide r, r,
from one end of the bobbin to the other, or from the centre to one end, so as to
form a single coil. As soon as the coil has arrived at the end of the bobbin he
moves the strap onto the loose pulley d and applies a brake w, w, with his hand
or otherwise, and at the same time a second attendant puts both carrier pinions n, n³,
out of gear, thus stopping the movement of the bobbin and the guide simulta-
neously. The first attendant then winds on a paraffine or plain paper, and his
assistant bringing the other carrier pinion into gear and the strap onto the fast
pulley & winds on another coil in the reverse direction, and so on alternately, till
the coil has assumed the required diameter. y, y, is a spring catch for holding the
lever x, x, in position so as to keep either of the pinions n, n¹, in gear with the
wheel, or both of them out of gear, as may be required.
If these changes are made by hand, as in the machine represented on the
Drawing, it is evident that two persons will be required to work the machine; but
in order to make these movements automatic we propose to attach to the machine
a sliding bar having two adjustable projections or tappets, one on each side of the
guide carrier, so arranged that when the latter has nearly finished its course in
either direction it comes against one of these projections or tappets and carries the
sliding bar with it, and this movement of the sliding bar acts upon the strap fork
and brake and upon the swinging bracket in such a way as to produce the desired
changes of motion, and can readily be applied by any competent mechanic, so that
one attendant only will be required to work the machine.
Having now described the nature and object of our said Invention, together
with the manner in which the same is to be or may be performed or carried into
practical effect, we wish it to be understood that we claim as our Invention the
novel and peculiar construction and arrangement of parts forming a coiling machine
for the purposes herein referred to, substantially as illustrated by the Drawings
annexed, and hereinbefore more particularly set forth and described.
In witness whereof, we, the said Charles Leigh Clarke and John Leigh, have
hereunto set our hands and seals, this Twentieth day of February, in the
vear of our Lord One thousand eight hundred and eighty two.