Improved Apparatus for Mechanically Winding Electrical Wires.
Year: 1891

page_text: Date of Application. 20th June, 1891
Complete Specification Left, 19th Mar., 1892-Accepted, 23rd Apr., 1892
PROVISIONAL SPECIFICATION.
Improved Apparatus for Mechanically Winding Electrical Wires.
WILLIAM SHARROW, of 35 Fairmead Road, London N., Engineer, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to enable the armatures and field magnets of
electro motors, dynamo machines, and the like, to be wound by mechanical means
instead of by hand. In order to hold the armature; field magnet, ring or the like
in a position suitable for my purpose, I employ a spider mounted upon a spindle
and having a suitable number of adjustable radial arms, and device for locking the
same. The bobbin or reel containing the insulated or other wire turns upon a
spindle, fitted with adjustable friction device or tension regulator, and mounted in
bearings upon the top flange of a hinged split bush which has on its underside a
flanged driving pulley.
The bush revolves in a split bearing or sleeve fitted with a locking device, which
is hinged to a bracket conveniently arranged to suit the work.
Immediately in front of the reel or bobbin is mounted a hollow feeding finger
through which the wire passes and near thereto is a reversible adjustable follower
which keeps each turn of wire in place as it is laid on.
The operation of winding is as follows:-
The ring, armature, field or other magnet is first mounted upon suitable shoes
fitted to the outer end of each adjustable arm of the spider and securely locked in
position.
The split sleeve and bush are unlocked opened out, and the segment of armature
ring, field or other magnet passed into the central hole in the split bush which, with
the sleeve containing it is then relocked. The tension regulator being adjusted,
the insulated wire is threaded through the feeding finger, and the end bound
upon the segment in the usual mauner.
The follower being so set as to compel each turn of wire to lie evenly and closely
to those upon either side of it. Motion is now imparted to the flanged pulley by a
band or strap driven from suitable reversing or other gear; the wire being thereby
fed off the reel, and wrapped in consecutive layers upon the segment.
The combined action of the follower and the laying on of the wire causes the
armature, field magnet, ring or equivalent to turn with the spider pivoted as
described until the segment is covered with the first layer of wire.
The follower is now turned round, and the second layer laid on, the armature
field magnet, ring, or other piece pivoted as described turning in the opposite
direction, by the combined action of the finger and the laying on of the wire and so
on, until the segment is filled with the requisite number of layers.
The sleeve and bush are now opened out and the segment or other object thus
completely wound is removed.
Deted Lune 20th 1891

page_text: :
COMPLETE SPECIFICATION.
Improved Apparatus for Mechanically Winding Electrical Wires.
WILLIAM SHARROW, of 35, Fairmead Road, London, N. 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 :-
The object of this invention is to enable the armatures and field magnets of
electro motors, dynamo machines, and the like, to be wound by mechanical means
instead of by hand. In order to hold the armature, field magnet, ring or the like
in a position suitable for my purpose I'employ a spider mounted upon a spindle
and having a suitable number of adjustable radial arms, and device for locking the
same. The bobbin or reel containing the insulated or other wire turns upon a
spindle, fitted with adjustable friction device or tension regulator, and mounted in
bearings upon a table formed by the top flange of a hinged split bush which has on
its underside a flanged driving pulley. The bush revolves in a split bearing or
sleeve fitted with a locking device, which is hinged to a bracket conveniently
arranged to suit the work. Immediately in front of the reel or bobbin is mounted
a hollow feeding finger through which the wire passes and near thereto is a
reversible adjustable follower which keeps each turn of wire in place as it is
laid on.
The operation of winding is as follows:-
The ring, armature, field or other magnet is first mounted upon suitable shoes
fitted to the outer end of each adjustable arm of the spider and securely locked in
position. The split sleeve and bush are unlocked, opened out, and the segment of
armature ring, field or other magnet is passed into the central hole in the split bush
which, with the sleeve containing it is then relocked. The tension regulator being
adjusted, the insulated wire is threaded through the feeding finger, and the end
bound upon the segment in the usual manner, the follower being so set as to compel
each turn of wire to lie evenly and closely to the turn preceding it. Motion is now
'imparted to the flanged pulley by a band or strap driven from suitable reversing or
other gear; the wire being thereby fed off the reel, and wrapped in consecutive
layers upon the segment. The combined action of the follower and the laying on
of the wire causes the armature, field magnet, ring or equivalent to turn with the
spider pivoted as described, until the segment is covered with the first layer of
wire. The follower is now turned round, and the second layer laid on, the armature,
field magnet, ring, or other piece pivoted as described turning in the opposite
direction by the combined action of the finger and the laying on of the wire, and
so on, until the segment is filled with the requisite number of layers.
The sleeve and split table or bush are now opened out and the segment or other
object thus completely wound is removed.
To enable my invention to be better understood I will now proceed to explain
'the same by means of the accompanying drawings, in which :-
Fig. 1. is a front elevation of the complete apparatus.
Fig. 2. is a side view.
Fig. 3. is a plan.
Fig. 4. is a front elevation of the spider, having adjustable radial arms to
enlarged scale.
Fig. 5. is a vertical section of same taken upon line A. B. Fig. 4.
Fig. 6. is a plan of the complete hinged split bush or table carrying the wire
reel, feeding finger &c., to enlarged scale.
Fig. 7. is a side elevation of the half of hinged split bush or table and hinged
split collar to enlarged scale.
Fig. 8. enlarged detail of follower.
In the drawings, 1, is the spider which turns upon a dead spindle 2, secured by a

page_text: nut 2¹, to a bracket 3, adjustably mounted upon the frame 4, of the machine, see
Figs. 1, 2, 3, and also enlarged views 4. and 5. When required the spider is
skidded by means of the cone 5, upon spindle 2, which is forced inwards by turning
the fly nut 6. The arms 7, of the spider have shoes 8, at their outer ends and are
adjusted for holding securely the armature, field magnet, ring, or the like 9, while
being wound, by means of the slots 10, formed therein and the lock nuts 11, they
can also be turned aside outwardly, see Figs. 1 and 3, and also see dotted lines
Fig. 5, by loosing the nuts 12, threaded upon the studs 13, upon each arm of
spider 1, and lifting the lock nuts 11, clear of the slots 14. The bobbin or reel 15,.
containing the wire to be wound upon the various segments of the armature, field
magnet, or ring 9, turns upon a spindle 16, having friction cones 17, at either end
which can be set up by turning the milled screw 18, engaging with one of the
bearings 19, 19', in which the spindle is mounted and which are made fast to the
inner half of hinged split table or bush 20. By turning the milled screw 18,
the requisite tension (which varies with the size of the wire) may be obtained..
The hinged split table or bush 20, has a flanged driving pulley 21, formed on its
underside and revolves in a split sleeve or bearing 22, carried by the bracket 23,
mounted upon the frame 4. The split bearing is locked by means of the bolts and
fly nuts 24, shown in dotted lines, see Fig. 6. Immediately in front of the reel or
bobbin 15, carrying the insulated or other wire, is mounted the hollow feeding
finger 25, through which the wire passes, and the reversible followers 26, which are
pivoted at 27, and adjusted by means of the milled nuts 28, threaded upon studs 29,
fastened into the split bush 20, and passing through segmental siots 30.
As the wire upon each section of the armature or field is sometimes wound in
alternate directions, the apparatus is driven by reversing motion, the belts 40, 41,
being shifted from the loose pulleys 31, 31, to the fast pulley 32, which operates
the driving pulley 33, and the split table or bush 20, by means of the belt 34,
passing over guide pulleys 35, secured by a bracket to the frame 4. The belts are
shifted from the fast to the loose pulley by means of the forks 36, 36', and striking
gear 37, the spindle 38, carrying both fast and loose pulleys 31, 31, 32, is mounted
in bearings 39, bolted to frame 4. The operation of my invention is as follows:-
The lock nuts 24, see Fig. 6, are removed from their respective holes in split
bearing or sleeve 22, and the split table or bush 20, together with the bearing 22,.
folded back, presenting a clear space through the centre as shewn in Fig. 7. The
armature, field maguet, or ring 9, is first taped in the usual way and then mounted
up in the shoes 8, at the extremity of the arms 7, of spider 1, and secured by set.
screws 8, each arm being lowered in turn by slacking back the nuts 11, 12, and
then expanding and clamping them by means of these nuts so as to tightly hold the
pole pieces formed upon the laminated or other type of armature, field magnet, or
ring, see Figs. 1, 2, 3. As the split bush when the armature is in the position for
winding occupies the space of one of the arms 7, the bolt and fly nut 11, is lifted
out of the slot 14, in the end of the arm of spider and the nut 12, upon stud 13,.
slacked, which enables such arm to be turned outwardly, as shewn in Figs. 1, and 3,
and in dotted lines, Fig. 5. The split table or bush is now closed and the
bearing locked by means of the nuts 24. The wire from the reel or bobbin 15, is
threaded through the feeding finger 25, and over the small roller 20', of the
adjustable follower 26 which has a deeper flange on one side than the other, which
flange can be turned in either direction by means of the bayonet joint and locking
spring shewn in enlarged view, Fig. 8., it is then wrapped round the taped segment
in the required direction and motion imparted to the split table or bush by the
strap 34, driven by the reversing pulley 32, one layer of wire is thus laid on: the
combined action of the follower and the laying on of the wire causing the armature,
field magnet or ring, as the case may be to turn with the spider pivoted as described
until the first layer is completed, the follower is now turned round so as to bring
the flange of the small roller 26', to the upper side and the second layer laid on,
the armature, field magnet, or ring turning in the opposite direction by the com-
bined action of the finger and the laying on of the wire until the number of layers.

page_text: required is complete. If the next section of the armature, ring or field magnet is
to be wound in the opposite direction, the wire is transferred to the idle follower
shewn to the right in Fig. 6.
The adjustable arms of the spider may be also made telescopic and pivoted at
foot, the inner tube carrying the shoes 8, being forced out by means of a
spring.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
'claim is :-
1. In apparatus for mechanically winding electrical wires upon the armatures
and field magnets of electro-motors, dynamo machines and the like having segmental
or plain rings, the particular combination and arrangement of parts herein described
operating together for effecting the purpose set forth.
2. In apparatus for mechanically winding electrical wires upon the armatures and
field magnets of electro-motors, dynamo machines and the like, the combination
and use of a spider 1, mounted and free to turn on the dead spindle 2, as described,
having adjustable radial arms 7, and shoes 8, thereon, with a hinged split table or
bush 20, and driving pulley 21, revolving in the hinged split bearing 22, said table
or bush carrying upon its upper face the wire reel 15, the finger 25, and adjustable
followers 26, the respective parts interacting together in the way and manner
described for producing the result set forth.
Dated March 19th 1892.
FRANCIS M. ROGERS,
Agent.