IMPROVEMENTS IN MACHINERY FOR WINDING OR COILING WIRE UPON ANNULAR ARMATURES FOR ELECTRO-MAGNETIC OR MAGNETO-ELECTRIC APPARATUS OR MACHINES
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by William Robert Lake at the Office
of the Commissioners of Patent on the 2nd September 1881. A com-
munication from abroad by Robert Haase and John Peter Recker, both of
Indianapolis, Indiana, United States of America.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents.
"IMPROVEMENTS IN MACHINERY FOR WINDING OR COILING WIRE UPON
ANNULAR ARMATURES FOR ELECTRO-MAGNETIC OR MAGNETO-ELECTRIC APPARATUS
OR MACHINES." [A communication from abroad by Robert Haase and John Peter
Recker, both of Indianapolis, Indiana, United States of America.]
The object of the said Invention is to provide machinery for rapidly and compactly
winding wire upon annular or circular armatures.
The machine by which this object is accomplished has a clamp adapted to be
securely fastened to and surrounding the rim of the armature, a rim adapted to
surround and revolve upon the clamp arms, oue of which carries a spool or bobbin
containing the wire, and the other a counterbalancing weight, and fastening, guiding,
controlling, and driving mechanism, all as hereinafter explained.
The clamp which forms part of the said winding machine is secured to the
armature; a cogged rim encircles the said clamp, and arms project from the said
rim; a bobbin or spool is secured to one arm; a travelling guide is provided for the
wire, and there are two endless screws upon which the said guide is mounted and
by which it is driven. A counterbalancing weight is placed upon the other arm.
The armature is preferably formed like the rim of a wheel, with recesses to receive
the wire, but other forms of armatures may be used.
The clamps by which the armature is secured in place while being wound are
simply stout jaws, and are preferably operated by screws.
The winding machine clamp is composed of two parts, which meet at one point,
and are preferably secured together by catches. It is formed with an opening to
fit the armature, but is circular outside, and is provided with a groove in which
the toothed rim runs.
The said toothed or cogged rim is also composed of two parts, which meet at one
point, and are secured to the last named clamp by a flange and groove attachment.
The flange has a small groove in one side which interlocks with a corresponding small

page_text: annular rib in the groove in the machine clamp, and the toothed rim is thus
secured in place. The groove forms the means by which the said rim is guided in
its course and the machine is steadied in position.
The spiral carrying arm is rigidly secured to the rim, and carries upon its face
studs which sustain a side frame part. One stud serves as a shaft for the spool and
the other stud as a rest over which the wire passes.
The weighted arm is also rigidly secured to the toothed rim, and bears upon the
face studs and bearings. One stud carries the stationary weight and serves as a
bearing for one end of the screw shaft by which the weight is driven. One
bearing serves to sustain the other end of the screw. Other of the bearings
sustain slides on which the weight travels.
It is
The spool or bobbin is mounted on its aforesaid stud shaft. It is prevented
from turning too freely by a thumb-nut which presses the frame part toward or
against the bobbin. A washer is usually interposed between the said part and the
bobbin to receive the wear occasioned by the friction of the bobbin in turning.
The wire runs from the bobbin on to the armature as the winder revolves.
guided to the proper point by the said travelling guide and a stud or bar.
The said guide runs upon endless screws and driven thereby. It is provided
with a slot through which the wire runs. The said guide consists simply of two
boxes through which a screw-thread is cut and a slotted bar connecting them.
The said screws are mounted in bearings in the spool or bobbin arm and in the
said frame part. Upon the inner end of these screws are star-wheels, which as the
winder revolves come in contact with projections which turn the said star-wheels
and screws, and thereby advance the guide slightly as often as the contact occurs.
The number of points on the star wheels or projections with which they may come
in contact will vary according to the fineness of the wire, so that the layers of
wire shall lie close together. As in endless screw mechanism when the guide
which travels thereon reaches one end, it immediately commences its return course,
and therefore this machine will continue to compactly wind one course after
another of wire upon the armature until the space therefor is entirely filled; when
the winder is unclamped by unfastening the catches and moved to the next space,
and finally removed altogether from the armature when all of its spaces are filled.
The aforesaid stationary weight is simply a portion of the weight which serves
as a counter-balance for the bobbin and the wire thereon.
The other weight is mounted on slides and has the said screw shaft passing
-through-its-centre, journalled in the aforesaid bearings. The screw shaft has on
its inner end a star wheel which strikes a projection as the winder revolves,
thereby turning the screw and drawing the weight slightly inward with each
revolution. The purpose of this arrangement to keep the spool and wire
exactly counterbalanced so that the winder may be run rapidly and at the same
time steadily..
It is of importance that two endless screws should be employed, as one alone
would be unsteady and unreliable, besides being difficult to manage. It is also of
importance in fast winding that the counterbalance for the bobbin and wire should
remain perfect or nearly so during the whole operation, as otherwise the machine
would have a jerky and uncertain movement and thus be liable to become
disarranged or broken.