AN IMPROVED MACHINE OR APPARATUS FOR COILING WIRE
Year: 1884

page_text: I, JOSEPH HASTINGS CAIRNS, of Gosford Glen, Markethill, in the county of
Armagh, Ireland, do hereby declare the nature of the said Invention for "AN
IMPROVED MACHINE OR APPARATUS FOR COILING WIRE" to be as follows:-
The object of the said Invention is to produce suitable machinery or apparatus
for the purpose of coiling wire in a more simple and effectual manner than by any.
means hitherto in use so far as I am aware.
To this end I arrange a mandrel capable of turning horizontally in suitable
framework, and two concave-faced rollers or drums, also capable of rotating on
spindles set at an oblique angle to the mandrel and gearing with it.
These rollers or drums are provided with grooves round their circumference so
that the grooves on each roller or drum will lie in the direction of that portion of
the wire coil passing between each roller or drum and the mandrel One or two
convolutions of the wire to be coiled are then passed round the mandrel to which
motion is imparted when the end of the wire is thrust forward, and, passing under
the grooves of the obliquely-set rollers or drums, comes out at the end of the
apparatus coiled according to the pitch of the angles to which the aforesaid rollers
or drums are set.
The spindles on which the rollers or drums are mounted are provided with ball
and socket bearings, so as to admit of the adjustment of the said rollers or drums
to or from the mandrel by moving one end of the spindle in arcs concentric with
the axial line of the mandrel.
An adjustable turn-table is also provided on which the roller or drum spindles
have journal bearings at one end, so that the rollers or drums have distance
adjustment with the mandrels.
Dated this Fifth day of January 1884
J. K. FAHIE & SON,
Agents for Applicant,
10, Leinster Street, Dublin,

page_text: I, JOSEPH HASTINGS CAIRNS, of Gosford Glen, Markethill, in the county of
Armagh, Ireland, do hereby declare the nature of my invention for AN IMPROVED
MACHINE OR APPARATUS FOR COILING WIRE, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
The object of my said invention is to produce suitable machinery or apparatus
for the purpose of coiling wire in a more simple and effectual manner than by any
means hitherto in use so far as I am aware.
To this end I arrange a mandrel capable of turning horizontally in suitable
framework, and I arrange two concave-faced rollers or drums, also capable of
rotating on spindles set at an oblique angle to the mandrel and gearing with it.
These rollers or drums are provided with grooves round their circumferences so
that the grooves on each roller or drum will lie in the direction of that portion of
the wire coil passing between each roller or drum and the mandrel. One or two
convolutions of the wire to be coiled are then passed round the mandrel to which
motion is imparted when the end of the wire is thrust forward, and passing under
the grooves of the obliquely-set rollers or drums comes out at the end of the
apparatus coiled according to the pitch of the angles to which the aforesaid rollers
or drums are set.
The spindles on which the rollers or drums are mounted are provided with ball
and socket bearings, so as to admit of the adjustment of the said rollers or drums
to or from the mandrel by moving one end of the spindles in arcs concentric with
the axial line of the mandrel.
An adjustable turn-table is also provided on which the roller shafts have journal
bearings at one end, so that by the said plate the rollers have distance adjustment
with the mandrel.
In order that my said invention may be more readily understood, and carried
into practice, I will describe the accompanying drawings:
Fig. 1 is a top view with part of the turn table journal-plates removed; fig. 2
a transverse section at x. x. fig. 1; and fig. 3 a top view of a modification of the
grooved rollers or drums and mandrel. Similar letters indicate similar parts in
each of the views: A and B are the shafts on which are mounted the rollers or
drums. These shafts are provided with ball and socket bearings at each end for
the purpose of allowing the adjustment of the rollers or drums in relation to the
mandrel C. The bearings to the left of the drawing are attached to a plate a
having a central tubular lug b turnable in a bearing in the standard c so as to admit
of the adjustment of the rollers or drums by movement in the arc of a circle
concentric with a line axial to the mandrel. Upon the rear side of the standard c
is a lug & through which passes a set screw e whose point rests on the top of the
journal plate a at one side, so that by turning the screw downwards the rollers or
drums are made to approach nearer to the mandrel. The set screw has a jaw
nut f to fix it to its adjustment. The mandrel C turns in a bearing g and has a
centre heel screw h on which its rear end has bearing. The machine is driven by
a belt working on the pulley i. The pinion / engages and drives the two bevel
wheels and m. The rollers or drums have a greater diameter at the ends than
at the middle, as shown, so that their surfaces are equi-distant from the mandrel
about their whole length. One of the rollers is provided with four circumferential
grooves 1. 2. 3. and 4, and the other is provided with three grooves 5. 6. and 7.

page_text: These grooves may be more or less in number, but I have found the above number
to answer the purpose with satisfaction. For the purpose of feeding the machine
a bracket D is arranged on the bed plate carrying two grooved rollers between
which the wire passes as it is drawn forward by the rotation of the mandrel and
rollers. The wire first extends to the groove 1 in which it crosses the top of the
roller B, and around under the mandrel to the groove 5, then around over the
mandrel to the groove 2 in the roller B and so on, and is thus coiled round and round
the mandrel in a spiral, lying in the grooves of both the rollers or drums, and being
carried forward to the point of the mandrel it passes through the tubular lug at
the left hand end of the mashine.
In the modification seen in fig 3, the number of grooves is doubled so as to carry
through two wires simultaneously and I have found this modification to answer
well in practice, the two spirals being coiled simultaneously in the side of the
webbing as with a single coil.
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. The combination of the mandrel C and rollers or drums A and B, each roller
or drum being provided with one or more circumferential grooves, and set obliquely
to the mandrel, substantially in the manner set forth.
2. The roller shafts A and B formed with ball and socket bearings, substantially
as set forth.
3.
The adjustable turn-plate a with bearings for the roller shafts, substantially
as specified.
4. The combination of the grooved rollers on shafts having ball and socket
bearings with adjustable turn and mandrel and gearing, substantially as set
forth.
Dated this Sixth low of Catahan 100