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Jan. 14,
‘
U
RABRAMS
I
2,414,218’
ARMATURE WINDING HEAD ASSEMBLY
Filed Jan. 10, 1945
4 sheetsi-sheat 1
22
3mm
Ra Zpb Hbrams
Jan. 14, 1947.
R, ABRAMS
I
2,414,218
ARMATURE WINDING HEAD ASSEMBLY
Filed Jan. 10, 1945
_
4 Sheets-Sheet 2
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21
22
3mm
Ra Zp]: Abrams
Jan. 14, 1947.
R ABRAMS
’
2,414,218
ARMATYURE WINDING HEAD ASSEMBLY
Filed Jan. 10, 1945
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Ralph Hbrams
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2,414,218
Patented Jan. 14, 194?
UNITED STATES PATENT OFFICE
2,414,218
ARMATURE WINDING HEAD ASSEMBLY
Ralph Abrams, Fresno, Calif.
Application January 10, 1945, Serial No. 572,138
14 Claims. (01. 242-43)
1
This invention is directed to improvements in
armature Winding machines, and in particular
the invention is directed to, and it is an object
to provide, a novel armature winding head as
as will fully appear by a perusal of the iollowing
speci?cation and claims.
'
In the drawings similar characters of reference
indicate corresponding parts in the several views:
Figure 1 is a side elevation of the device in use,
with one of a corresponding pair of armature
A further object of the invention is to provide
slots in wire receivingposition.
an improved armature winding head assembly
Figure 2 is a similar view, but shows the oppo
which is especially designed for winding arma
site side of the device and the armature oscillated
tures wherein the individual coils are wound be
to position the other slot of said pair in wire
tween corresponding armature slots disposed less 10 receiving position.
than 180° apart; i. e., armatures whose coils have
Figure 3 is a sectional plan view of the device.
sembly.
a short span, as used for example in multipolar
motors.
Figure 4. is a cross section on line A-? of Fig. 3.
Figure 5 is a cross section on line 5-5 of Fig. 3.
An additional object of the invention is to
Figure 6 is a fragmentary diagrammatic ele
15
provide an armature winding head assembly, as
vation showing one of the cam pins about to be
in the preceding paragraph, which is operative,
engaged and moved by the corresponding cam
upon rotation of said armature supporting head
roller.
assembly, to oscillate the armature about its axis
Referring now more particularly to the char
to an extent and with such timing as to dispose 20 actors of reference on the drawings, the armature
each of said corresponding slots in the same
winding head assembly which is the subject of
position for reception of wire from the feeder,
even though said corresponding slots bear a rela
tion to each other of less than 180° apart circum;
ferentially of the armature.
Another object of the present invention is to
provide an armature winding head assembly
which comprises a pair of spaced, armature sup
porting heads mounted for rotation about the
same axis and having arcuate, segmental jaws on
adjacent ends thereof disposed in facing relation
and concentric to another axis at a right angle
to the axis of said heads, the armature being en;
gaged between said jaws for rotation about its
and said other axis in common, means to con
tinuously rotate the head assembly, and other
means operative upon rotation of said head as
sembly to oscillate the armature so as to alter
nately position corresponding armature slots,
the present invention may be used in connection
with any armature winding machine having a
shaft, here indicated at 1, adapted to be driven
25 continuously in one direction during the winding
of any given coil of the armature; an armature
winding machine of this type being shown in my
copending application for U. S. Letters Patent,
Serial No. 571,177, ?led January 3, 1945.
' The armature winding head assembly com
prises a pair of complementary heads 2 and3
disposed in spaced-apart relation and in axial
alinement; the head 2 being ?xed on the outer
end of shaft 1, while the head 3 includes a sup
porting trunnion 4 turnably mounted in a sleeve
5. The sleeve 5 is axially adjustable in a ?xed
upstanding bracket
6,
and said sleeve is
normally held against axial movement by a set
screw 7 threaded through the bracket and seat
which are spaced apart less than 180°, in the 40 ing against said sleeve.
The heads 2 and 3 are formed, on adjacent
same position for wire reception from a feeder.
ends, with arcuate faces 8 and 9, respectively,
An additional object of the invention is to pro
having a common axis iii disposed at right angles
vide an armature winding head assembly, as in
the preceding paragraph, in which said jaws are
to and intersecting the axis ll of the rotatable
mounted on corresponding heads for limited 45 heads 2 and 3. At said ends the heads 2 and
3 support arcuate segmental jaws l2 and I3, re
rotation about the jaw axis; there being a cam
spectively, which matchingly and slidably coop
mechanism, operative upon one-way rotation of
crate with the faces 8 and 9; the jaws I2 and I3
the heads, to oscillate said jaws and consequently
are secured to the heads 2 and 3 for limited ro
the supported armature to the extent necessary.
A further object of the invention is to produce 50 tary motion, about their common axis in, by
means of arcuate slots M in which headed screws
a simple and inexpensive device, and yet one
it ride. The armature to be wound, which, is
which will be exceedingly effective for the pur
indicated generally at It, is adapted to be engaged
pose for which it is designed.
between the jaws l2 and I3, and said. jaws each
These objects are accomplished by means of
such structure and relative arrangement of parts ' include a locating rib R which engages in an ad
2,414,218
iacent one of the slots l ‘I of the armature, where
by the two jaws l2 and 13, together with said
armature, are held in a unitary non-rotatable
4
35 are disposed in circumferentially spaced rela- '
tion to each other, the spacing being such that
when one pin engages and is moved by the roller
35, the armature is rotated through a half os
cillation in one direction to position the slot A
tion of said unit about the axis It is limited by a
in wire-receiving relation to the working face
stop l8 which projects radially from the back of
2!, and when the other pin engages said roller
the jaw I2 into an arcuate channel 19 formed
the armature is rotated through a half oscilla
in the head 2; said stop abutting at opposite ends
tion in the opposite direction to position the slot
of its length of travel against‘ adjustable stop 10 B in wire receiving relation to the working face
screws 20 threaded into opposite ends of channel
22. Thus, with continuous rotation of the head
19, said screws being accessible from exteriorly
2 in the same direction, the armature IE is oscil
of the head for adjustment. When the stop 18,
lated back and forth, whereby the feed wire 24 is
moving in one direction, abuts against the cor
successively and recurringly fed into the slots A
responding screw 26, further motion of the body 15 and B to form a short-span armature coil ex
l2 in such direction, together with the armature
tending therebetween,
l6 and jaw I3, is prevented.
It will be recognized that the number of slots
The above armature winding head assembly is
which the coil spans can be varied by changing
particularly adapted for use in winding short
the relative positions of the collars 30 and 3! _on
relation in the head assembly, with the armature
axis common to the axis it of said jaws. Rota
span coils on armatures for multipolar motors 20 the cross shaft 25.
Q
or the like, and wherein each coil is wound be
After any given coil has been wound on the
tween corresponding armature slots I‘! which are
spaced apart circumferentially of the armature
armature between corresponding slots, the shaft
assembly; this being accomplished automatically
ing in cooperation with the head 3, in which lat
ter event the head 3' will be shaped similar to
head 2 to accomplish proper wire guiding.
From the foregoing description it will be readily
i is stopped and the set screw 1 released so that
less than 180°, as are shown for example at .A
the head 3 may 'be drawn away from the arma- .
and B.
25 ture sufficient to permit the latter to be released
vTo wind a short span armature coil between ' from jaws l2 and I3 and rotated relative thereto
the armature slots A and B, it is necessary that
to position for winding the next coil, which will
the armature slot A be positioned in wire-receiw
be wound in a different pair of slots in said ar
ing relation to the working face 2| during one
mature.
half turn of each revolution of the head assem 30
While the head assembly is described as used
bly, and that the slot B be positioned in wire
to Wind 2. single coil at a time, two coils can be
receiving relation to the working face v22 during
simultaneously wound; one coil winding in coop
the other half turn of each revolution of the head
eration with the head 2, and the other coil wind
as ‘the head assembly rotates, by oscillating the _
armature to a predetermined extent, and which
extent is limited by adjustment of the stop screws
23. The slots A and B are thus each in correct
wire-receiving position when the working faces
2| and 22, respectively, together with guide ?ns
\ 23, turn into wire-guiding relation to the wire 24
as fed from the feeder.
The armature I6 is automatically oscillated as
aboveby means of the following operating mech
anism:
A cross shaft 25 is journaled in the head 2 in
parallel relationship to the axis It, and in inter
secting relation to the axis ll; said cross shaft
being ?tted at ‘opposite ends with pinions, indi
cated at 26 and 21; the pinions 25 and 27 mesh
ing with segmental gears 28 and 29 formed on
corresponding end portions of the rotary jaw
l2. It will be seen that with oscillating move
ment
ment
ture,
times
of the cross shaft 25, a corresponding move~
is imparted to the jaw i 2 and the arma~
seen that I have produced such a device as sub
stantially ful?lls the objects of the invention as
set forth herein.
While this speci?cation sets forth in detail the
present and preferred construction of 'the de
vice, still in practice such deviations from such
detail may be resorted to as do not form a de
parture from the spirit of the invention, as de
?ned by the appended claims.
-
‘
Having thus described the invention, the'fol
lowing is claimed as new and useful and upon
which Letters Patent is desired:
a
'
1. An armature winding head assembly for
winding armature‘ coils, ‘each of which spans
between corresponding slots spaced apart circum
ferentially in the armature less than 180°, the
assembly comprising a pair of axially alined
heads mounted in spaced relation for rotation
and said cross shaft is oscillated at the
about-a common axis, means on said heads adapt
and in the directions necessary to produce
ed
to support an armature therebetween with the
the desired result, in the following manner:
armature axis at right angles to said common»
Atrthe ends thereof the cross shaft 25 projects
beyond the adjacent pinions and at each such 60 axis, and for independent oscillation of said ar
mature about its axis, driver meansoperative- to
end is ?tted with a collar, said collars being in~
rotate said heads, and means to oscillate the
dicated at 3!) and 3!. The collars 3B and SI are
armature about its axis in timed relation to rota
circumferentially adjustably secured to the cross ,
tion of the heads su?cient to successively and re
shaft by means of set screws 32. Each of the col
curringly dispose each of said corresponding'slots
lars includes an outwardly projecting boss
at a predetermined and like wire receiving point.
through which a, cam pin is adjustably threaded
substantially tangentially of the corresponding
2. An armature winding head assembly for .
winding armature coils, each of which spans be
collar, saidpins being indicated at 34 and 35.
tween corresponding slots spaced apart circum
The pins project to a termination at their outer
ferentially in the armature less than 180°, the as
ends some distance from the corresponding boss 70 sembly
comprising a pair of axially alined heads
33 and are adapted, upon rotation of the head
mounted
in spaced relation for rotation about a
assembly, to successively and recurringly engage
with a cam roller 36 ?xed in connection with a
Support 31 to one side of the head assembly. The
collars 30 and 3| are set so that the pins 34. and
common axis, means on said heads adapted to
support an armature therebetween with the .ar
mature axis at right angles to said common axis,
and for independent oscillation of said armature
2,414,218
5
about its axis, drive means operative to rotate
said heads, and means to oscillate the armature
about its axis in timed relation to rotation of the
heads su?icient to successively and recurringly
dispose each of said corresponding slots at a pre
determined and like wire receiving point; one of
said heads being mounted for axial adjustment
whereby to permit the retraction of said one head
6
ture oscillating means is operatively connected
to one of said rotatably mounted jaws.
v7. A device as in claim 5 in which said armature
oscillating means includes a segmental gear on
one of said jaws, a pinion journaled on the corre
sponding head, and instrumentalities operative
to oscillate said pinion upon rotation of the
heads.
from an armature supporting position, to release
said armature supporting means.
3. An armature winding head assembly ‘for
winding armature coils, each of which spans be
tween corresponding slots spaced apart circum
‘8. A device as in claim 5 in which said arma
ture oscillating means includes a segmental gear
on one of said jaws, a pinion J'Ollrnaled 0n the
about its axis, drive means operative to rotate
said heads, and means to oscillate the armature
about its axis in timed relation to rotation of
the heads su?icient to successively and recur~
the shaft and pinion.
9. An armature winding head assembly for
winding armature coils, each of which spans be
corresponding head, and instrumentalities opera
tive to oscillate said pinion upon rotation of the
heads,
said instrumentalities including a cross
ferentially in the armature less than 180°, the
assembly comprising a pair of axially alined heads 15 shaft on the head, the pinion being ?xed on the
shaft, a pair of cam elements ?xed in longitudi
mounted in spaced relation for rotation about a
nally
spaced relation on the shaft and projecting
common axis, means on said heads adapted to
therefrom in circumferentially spaced relation,
support an armature therebetween with the ar
and a ?xed cam positioned to successively and
mature axis at right angles to said common axis,
and for independent oscillation of said armature 20 recurringly engage said cam elements to oscillate
tween corresponding slots spaced apart circum
ferentially in the armature less than 180°, the
assembly comprising a pair of axially alined heads
mounted in spaced relation for rotation about a
common axis, arcuate segmental jaws mounted
faces on opposite sides of the axis of said head
on adjacent ends of the heads in spaced, facing
in position to cooperate with a corresponding one
of said slots when the latter is disposed at said 3-1 relation for engagement of the armature there
between, said jaws being concentric to the arma
wire receiving point.
ture axis and mounted for limited rotation there
4. An armature winding head assembly for
about, releasable means between the jaws and
winding armature coils, each of which spans be
armature to prevent relative rotation 'therebe
tween corresponding slots spaced apart circum
tween, means to drive one of said heads, and
ferentially in the armature less than 180°, the
means to oscillate one of said jaws in timed rela
assembly comprising a pair of axially alined heads
tion
to rotation of said head su?lcient to suc—
mounted in spaced relation for rotation about a
cessively and recurringly dispose each of said
common axis, means on said heads adapted to
slots at a predetermined and like wire receiving
support an armature therebetween with the ar
point.
mature axis at right angles to said common axis,
10. An armature winding head assembly for
and for independent oscillation of said arma
winding armature coils, each of which spans be
ture about its axis, drive means operative to
ringly dispose each of said corresponding slots at
a predetermined and like wire receiving point;
one of said heads including separate wire guiding
rotate said heads, and means to oscillate the
armature about its axis in timed relation to rota
tion of the heads suf?cient to successively and
recurringly dispose each of said corresponding
slots at a predetermined and like wire receiving
point; said armature supporting means includ
ing arcuate, segmental jaws mounted in spaced,
facing relation on the heads, said jaws being
concentric to the armature axis.
5. An armature winding head assembly for
winding armature coils, each of which spans be
tween corresponding slots spaced apart circum
ferentially in the armature less than 180°, the '
assembly comprising a pair of axially alined heads
mounted in spaced relation for rotation about a
common axis, means on said heads adapted to
support an armature therebetween with the ar
mature axis at right angles to said common axis,
and for independent oscillation of said armature
about its axis, drive means operative to rotate
said heads, and means to oscillate the armature
about its axis in timed relation to rotation of the
heads suii‘icient to successively and recurringly
dispose each of said corresponding slots at a pre
determined and like wire receiving point; said
armature supporting means including arcuate,
segmental jaws mounted in spaced, facing rela
tion on the heads, said jaws being concentric to
the armature axis and mounted for limited rota
tion thereabout, and releasable means between
the jaws and armature arranged to prevent rel
ative rotation therebetween.
tween corresponding siots spaced apart circum
ferentially in the armature less than 180°, the
assembly comprising a pair of axially alined heads
mounted in spaced relation for rotation about a
common axis, arcuate segmental jaws mounted
on adjacent ends of the heads in spaced, facing
relation for engagement of the armature there
between, said jaws being concentric to the arma
ture axis and mounted for limited rotation there
about, releasable means between the jaws and
armature to prevent relative rotation therebe
tween, means to drive one of said heads, and
means to oscillate one of said jaws in timed rela
tion to rotation of said head suiiicient to succes-'
sively and recurringly dispose each of said slots
at a predetermined and like wire receiving point;
said last named means comprising a cross shaft
journaled on one head parallel to the armature
axis, a pinion fixed on the shaft, a segmental
gear on the corresponding jaw meshing with the
pinion, the shaft projecting beyond opposite sides
of said one head, cam elements projecting later
' ally from opposite ends of the shaft and in cir
cumferentially spaced relation, and a ?xed cam
element mounted adjacent said one head and
with which ?xed cam element the shaft mounted
cam elements successively and recurringly engage
in shaft oscillating relation.
11. An armature winding head assembly for
winding armature coils, each of which spans be
tween corresponding slots spaced apart circum
ferentially in the armature less than 180", the
6. A device as in claim 5 in which said arma- ' . assembly comprising a pair of axially alined heads
7
2,414,218
mounted in spaced relation for rotation about a
common axis, arcuate segmental jaws mounted
on adjacent ends of the heads in spaced, facing
relation for engagement of the armature there
between, said jaws being concentric to the arma
ture axis and mounted for limited rotation there
about, releasable means between the jaws and
armature to prevent relative rotation therebe
8
13. An’ armature winding head assembly for
winding armature coils, each of which spans be
tween corresponding slots spaced apart circum
ferentially in the armature less than’l80", the
assembly comprising a pair of axially alined heads
mounted in spaced relation for rotation about a
common axis, arcuate segmental jaws mounted
on adjacent ends of the heads in spaced, facing
relation for engagement of the armature there-,
tween, means to drive one of said heads, and
means to oscillate one of said jaws in timed rela 10 between, said jaws being concentric to the arma
tion to rotation of said head suf?cient to succes
ture axis and mounted for limited‘rotation there
sively and recurringly dispose each of said slots
at a predetermined and like wire receiving point;
said rotation preventing means between the jaws
about, releasable means between the jaws and
armature to prevent relative rotation therebee
tween, means to drive one of said heads, and
and the armature comprising cross ribs on the 15 means to oscillate one of said jaws in timed rela
jaws seating in adjacent armature slots.
tion to rotation of said head sufficient to succes
12. An armature winding head assembly for
sively and recurringly dispose each of said slots
winding armature coils, each of which spans be
at a predetermined and like wire receiving point;
tween corresponding slots spaced apart circum
the rotation of the jaws about the armature axis
ferentially in the armature less than 180°, the 20 being limited by a stop formed on the back of
assembly comprising a pair of axially alined heads
one jaw, the corresponding head having a slot
mounted in spaced relation for rotation about a
into which said stop projects andalong which slot
common axis, arcuate segmental jaws mounted
said stop is movable, and stop screws threaded
on adjacent ends of the heads in spaced, facing
into said head and projecting into the slot at
relation for engagement of the armature there 25 opposite ends, said screws being adjustable and
between, said jaws being concentric to the arma
accessible from exteriorly of said head.
, a
ture axis and mounted for limited rotation there
14.’ An armature winding head assembly com
about, releasable means between the jaws and
prising a pair of spaced, armature supporting
armature to, prevent relative rotation therebe
heads mounted for rotation, about the same axis
tween, means to drive one of said heads, and 30 and having arcuate, segmental jaws on adjacent
means to oscillate one of said jaws in timed rela
tion to rotation of said head sufficient to succes
sively. and recurringly dispose each of said slots
ends thereof disposed in facing relation‘and con
centric to another axis at‘ a right angle to the
axis of said heads, the armature being engaged
at a predetermined and like wire receiving point;
between said jaws for rotation about its and said
said last named means including movable cam 35 other axis in common, means to continuously ro
elements projecting from one head, and a ?xed
tate the head assembly, and other means operative
cam element adjacent the head, the movable cam
upon rotation of said head assembly to oscillate
elements successively and recurringly' engaging
the ?xed cam element with rotation of said one
head and being arranged to thus produce oscil
lating motion, and means on said one head to
transmit said motion to the corresponding jaw.
the armature so as to alternately position corre
sponding armature slots, which are spaced apart
40 less than 180°, in the same position for wire
reception from a feeder.
‘
RALPH ABRAMS.
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