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Патент USA US2412280

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Dec. ' 10,
ELECTRICAL
J_ W_
COILMlLLER
WINDING MACHINE
_
Filed March 5, 1943
v
_
‘
4 Sheets-Sheet l
w";
‘ WWW,
D¢c,1@,me,
J_W_M,,_LER
'
'
2,412,280
‘ELECTRICAL COIL WINDING MACHINE
Filed March 3, 1945
‘
4 Sheets-Sheet 2
Dw-w, 1m
J.W.MH.LER
~
ELECTRICAL COIL WINDING MACHINE
Filed March 3, '1945
.
-
'wzzw
'
4 Sheets-Sheet 3
m۩ T19,
J_ W_ MILLER
'
ELECTRICAL COIL WINDING MACHINE
Filed March 5,1943
'
v
'
4Sheets-Sheét 4
2,412,280
Patented Dec. 10, 1946
i;
{STAT E5 ' PATENT; OFFICE}
‘‘ 72,412,280j. .. ,
ELECTRICAL COIL-WINDING MACHINE
> '
ohn William ,Miller, London.N.. W. 9, England, .
assignor ‘.td v(loodmans ‘Industries
Limited, ‘ ‘
,
Wembley,‘Middlesex, England;.a‘_'British .corn
*
'tlApplication March 3, 1943,;SerialNo. 477,883 7
i _ Iii-Great Britain July_.l6,119421;__
if”
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tatably ‘mounted a ‘shaft 2, 3 on which are located
This invention reiatésto machines for winding
two collars 4', 5 oi'whi'ch one 5 is secured‘ to the
shaft, whilst the other 4 is loosely mounted on
muses are used in electricallinstruments,'more
cularly those known .asI'moving coils.
the shaft. ll‘h'e collars 4, 5 are connected to
gether by‘ a' coiled jspring‘?. _The purpose of this
'ctrical‘ coils ar'éjusually 'wound'by hand and
it,.takes'_about three minutes tofdo this. ' _' .' a
' It is' the object‘of ‘the present invention to pro
arrangement willbe described‘hereinafter.
ele'ctrical‘coils can bewoundautomatically.
‘Oii‘thisendofjthe shaft portion‘ 2 is slidably
mounted a'bush 9‘on which is'keyed a driving
means ‘for, ensuring" that the separate‘ turns of
pulley It provided in the portion thereof adjacent
thecoil ‘are applied in abutting relationship.‘
the jclutch‘memberl'lfwith a groove ll into which
is ?tted a‘ring [2 ‘of leather or other friction
Another‘object of the invention isito provide
means for ‘supplying wire to a former at an angle
of lag which remains substantially constant until
material.
‘
.
‘
.
"
‘
ing‘ the shaftZ, 3,.the bush‘9 is pressed‘towards
‘
" Still another object of the invention is to pro
the clutch member fljby a spring l3 secured to' a
vide means, whereby in .the'case of multi-layer
coils‘the wire is supplied to a former at an angle
of lag, which is substantially constant in the sepa
rate layers but in'opposite direction for each suc
'
‘Info‘rderto hold‘the ring ‘12 in frictional en
gagemjent with they cam 8 for the purpose of driv-“
the wire ‘has been wound the full length of ‘the
_
“
clutchvfniembe'r ,1 provided with a, conical surface.
‘ ‘
A further‘ object of vthe invention is to provide
.
‘
_ One the" end ‘of ‘the shaft‘poi'tion 2 iskeyed a
vide a machine whereby single or multiple layer
former.
;
reclaims.
20
shaft _M; rotatably mountedv in the structure‘ I;
and‘carryingfat‘ its other end van operating lever
"_Inj orderfto ensurejengagement between the
cessive layer.‘ ‘ '
.'
i I
p‘
I
spring‘ l3 and the ‘bush '9 the latter is preferably
" ‘A still .iurther object of ‘the invention is to pro
provided with a conical end ‘I6.
‘
.
vide means‘ for varying ‘the direction of the angle
of lag of the wire automatically as the end _of 25 ‘On the, shajftportion 3 is keyed a pinion vvI‘!
eachvseparat'ejlayeris reached.
‘
which gears 'withaspur wheel 18 keyed to a shaft
[9 ‘rdtatably'nmounted in the ‘structure I. The
'
Xe'tanotherobject of .the'invention is to pro
gear ratio‘betw‘eenithe pinion Ill and spur’ wheel
vide' means whereby a wire guide receives an ac
celerated movement in the same direction at the
end of a layer of turns so as to start its return 30
movement with the same angle of lag but in the
opposite direction.
‘
,
I8 is preferably-1:22"
‘
_v
‘n
"
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‘To the‘shaft l9wis‘ keyed a'worm 20' gearing
with'a worm wheel ‘2| securedrto sleeve _22 rotate
ably mounted in a, boss 23, depending from the
,
A further objectgof the invention is to provide
a machine which avoids the necessity of stopping
the machine atithe end of winding each separate
layer for the purpose of coating the wound layer,
before applying the next layer, with a suitable
adhesive or insulating medium, _by_ coating the
top of‘ the structure I.
35
. ‘
'
In the sleeve 22_is rotatably' mounted a spindle
24 tothe lowerend of which-is keyed a heart
shaped cam 25', of a resilient nature, whichcarries
a tooth 2.6. which co-operates with radial recesses
provided‘ vover I ' the. entire adjacent face ' of ‘ the
wbrmWheelZ I‘. The’free lower end of the spindle
wire with a suitable adhesiveor insulating me
dium in liquid form before ity is fed to a former. 40 24 is‘hardeneda‘nd ‘co-operates with a, ‘cam 21' in "
which-is‘ mounted a spring actuated ball which is
y‘ These and other objects will appear from the
‘,pposite the end of the‘ spindle 24 in‘the operative
following description, with reference to the ac
position of‘ the niachine.__
‘
'
‘companying‘ drawings which show a preferred em
To the upper end of the spindle 24 is keyed a
bodiment of the. invention as applied to a coil
winding machine.‘
‘
‘
45 camwcage‘ >2_8 for the reception of one or more earns
'
29; The cams 29 are secured in position by a
plate 30 secured to a boss of the cam cage 28 by
.In‘these drawings: _
, Fig“. 1 shows an elevation.
‘ "Fig. _2 is ajplan view, partly in section.
screws3l';
Fig. 4 is an elevation'partly in section looking 50
at the left-handside of Fig. 2, and‘
. ' Fig. 5 shows adetail.
I
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k f
‘
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32;_33. ~~
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provided with cam grooves
‘ i
With ,thegrooves 132,’ 33 ‘coreoperates a pin 35
secured to _a slide 36,,fslidably: nounted on a lever
31 by pin ‘and slot connections‘_38.
shown in the drawings, ‘the machine is pro
vided‘with‘ a ‘supporting ‘structure I of substan
tially inverted U‘-shape'. “.‘In vthe structure is ro
’
The cams ‘29 are
Fig. 3 is a section on the line III—III of Fig. 2.
‘ '
The slide‘ 36 is provided with a second pin 39'
55
adapted to co-operate" with a stop lever 40 keyed
' to' a spindle 4| rotatably mounted in the struc
ture I." The end of the slide, at which the pin 35‘,
shaft l4‘. vAs a result or turning the shaft- “
the spring I3 is brought into engagement with
is secured thereto,’ is connected by a link 15 to »
V
the conical end [6 of the bush 9 so that the frie
the lever 3'1.v
' tion lining ‘II' is pressed againstothe conical sur
The 1ever;c;*1 is’: keyed‘to a spindle E2- mounteelj; .
face”! of the clutch member Wh
he shaft
2", 3' is driven by" the pun'ey‘mi' windy’ here-be‘
in a boss 43', secured to"the.stru‘cture l', and pro--'"
vided with‘ an arm’ 44 having a pointed end 45
‘ mentioned that a driving belt for, engagement
co-operating» with the pointed end 46 of a spring
" with the pulley Illis preferably offset so as to l‘ ' V
actuated plunger 4‘! in a housing 48 secured to" _ ‘ assistin keeping the frictionilining ll incontact
the structure In
_
_
’
with-the conicalsurface 8.
To the lower end of the spindlelllzis keyed a
lever 49 connected by a spring‘ 5'l't'o‘ a lever52‘se- ' '
cured to a container 53 contair'iinga liquid ' 911-‘
'
l
'
- ‘- :The turning of_ theshaft-M also disengagesthe
pawl lev'er_68 from the projection '69, whilst.
"
as
thealever
result'10ofisthe
engaged
actionwith
of the
thespring
lever 61,7moves.
'66 ‘which
>
7
Between the levers 49, 52 is located‘ a plate‘
53"
_
“
~15‘ thelever 40 in' a, clockwise direction‘ (Fig.2) un
hesive or insulating material.
'
provided with rounded ends for engaging with the '
The plate 53' is carried by a rod
54, passing therethrough, secured to a member
55 carried by a spindle 58‘ pivotally mounted in a
V levers 49, 52;
bracket 56 secured to the structure I.
_
' _
,As a result of the turning of. the
.,
' p 1 -20
The" container '53 'i's'mounteu on a spindle 5'1
..
v
shaft >l-4fthe
the tooth 26 :is. brought into engagement with
one of the radial recesSéS'iI‘l the‘ worm wheerzl”
Cams
As‘ the
29- shaft
‘
2,3
.
is‘ now'bjeing
e
' Y
drivenfby the V
tate'd and thewire, havingbeen securedso'that
it is lying in the corner" formed by‘ the-cheek'voff
Near its upper end thec'oiitain‘er‘ s'a' tsp-retired
30 the chuck and the former, now takes up a p'osi-'
a c'ohic'al spout '62‘ having a longitudinal
groove 63 in its upper surface along which the
wire is passed. After the wire has been placed
tion closely adjacent to the cheek until one revo- ‘
lution has occurred when" the wire will follow the
guide formed by the wanjerjthe preceding; turhi
into the ereeye it is retained in the latterbya
of Wire.
The spout $2 is so’ positioned relatively to the '
Brought iii-t6 register‘ with'the gireeve’v'vhe? the‘
wireis'to b'e place‘d'i'rito the greet/eta so that
lags behind the’tur'ns of wire as they are Wound
conical cap 64. The cap’ 64
preferably; p‘r'oe
videdjwith a longitudinal" slit adapted to‘ be
former that the Wire ‘fye‘ed'point to the former
'onthe former.
the‘wir‘e can be placed ir'itd the re'eess 63 lwithoiit
removing the cap 64; whereupon the cap“ is
about the axis oft'he Sp'ihdIe‘BT
v i
tamer 53 is mounted.
I To the lower end of the spindle‘ 4|" is keyed aI
On the shaft I4 is also keyeda lever 10“ of which
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_
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ohwhich the ‘wire is to be coiled: : The spo‘utfkli2
winding of the wire 'on' the former.
r v
55
To the’ spindle “is secured a sleeve 'H around
whichsis coiled a spring- 112‘ ofwhich ene endi's‘
‘
Whilst this movement er theispoutj a is, the;
secured to'th'e sleevewhilst its other ‘end is at-‘
ing place, the end‘ 45.of the leverf44 isofrorcing" '
the spring-actuated plunger 41, which is,‘ now i
tensionihg theslev’e‘r 31 in a clockwise direction,
mounted atone ene'eh ‘the; spindle. v4|,pvkihi1‘st‘
into its housing 48Luntil, when the pin 35 reaches
the central point of travel of the cam groove
tached t6 a lever 73.v The lever 13 is loosely
‘ 7 its other ,end bears against theheart cam ‘2/5: by
32’, the end 45 passes‘ 'over‘ the pointed en'd??',
meansof a roller 15 (Fig. 5?.
thus transferring the tension imparted to lever
7 return spring 14 is eehheetea atione eha to I. 37 from a clockwise to an anti-clockwise 'dire‘ci'
the structure I and at the other end to thé‘lever
l5".
'
~
7
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s,
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I
' The operation of the machine above described
islaks follows:
V
'
tion. When the pin 35 reach
spring plunger 41 in contact
or ‘the contour of the cam whichfouews, thus rap
theidrawing and itis to be assumed that a‘ _
65'and a;
70
wire to be coated- and Wound on the former ‘has
been; passed through thephole 60,, around the p ' roller-“6i, along the groove 63 in the spout ,and ~
:7
l
lever Mfi'n ‘an a‘
anti-clockwise direction untilb‘r‘ought up against
'
rehhet hasfbeen ?ttedgin- the
vhee'end of the
65 cam groove 32, it is sprung'hytheiaction cfthe
' The various parts are in the position as shown ‘
' '
idly reversing the angleofthers‘pout to thelc'orr
rect position for the winding'oi the secondlayer
in the reversedirection; this" movement lb‘eingr
synchronised with the-‘approach er the Jest, turn
o'fthe'?rst layer against 'tliéjpheektat'the‘,
lshihg ehder the first layer’. '
The lever- I5 is depressed thus turning 13118754 Immediately ‘the laststurn is wound the Wall‘
the‘end; attached to the'chuck.
'
"
' '
V‘ ‘
I
which the con- 7 v
s
thus‘i'noves' substantially in synchronisln with the
when thevarious parts are in the position shown:
_
g
spout 62 has traversed the length "of the former
theiree er'id engages with- a notch in the lever (if;
v
_
from one of the cam ‘grooves 32 to the other,v the
eee'rates with a projection 69 era-‘the collarf4;
o
is
H The ratio of the levers 37, 4'9 en'qtzehd spent‘
62 are suchthat when the pin 35, has‘ ‘moved
ietee 66 coniiécted by a spring Site at pawllever
68I keyed tdthe shaft [4.7 ‘The iever'jes' eo
5
_.
through the spring 5_l"thu's‘ turnirigthej spouts:
serum 3;’ The chuck s5 reeeives' e, rerre‘er'jssb
in the drawings
'_
42 it causes the lever 52 to‘. followl'its movement '
tiidp'éarried hy a ehueiz ‘as hieuhtea' on the shaft
.
v_
axis ‘of its‘ spindle“ in-anvvantiécl'o'c‘kwise‘direce
than. vAs‘ the lever 49 is keyed to ‘the spindle
'
seemed us a sin‘
eh which vthe wire is time we'uhei.
v
_ During‘ the'w‘indingr operation the pin 35" fol;
lows‘ the cam groov'e32, whichis atrue'spir‘al,
as va result of whichthe, lever 3_1_ turns ahout'th'e‘
turned tobr'irig" thévslit- and er'geeve out of reg
is'ter whereby the ‘wire; is ‘rétained‘iii the groove
'
y
pulley. In‘, the chuck 765' with the former is lro'i‘" "
the liquid’.
'
- a ‘
,
greeted etude roller 6 I‘, immersed'i? the liquid he
the container 53; which serves to" guide the wire.
~
_
cam carrier 28 intov suchjajp'o'sition that‘ the
‘ 35 is opposite the carngroove ‘32' of onefo’f the’
m the ‘container. 53 is rotatably iheuhteu a
63.
7
2|. The raising or the-spineless also bring‘
heie so through which wire, Home supmy spjo‘ol'
V ; The wire hem the speuttz‘
~
thus couiplin‘gfthe" spindle 24 to the worm wheei
rotatably‘ mounted in the bracket 56; The con
~ tamer‘ '53
closed by a. cover? 59 provided with“ a;
(not shown) is‘ fed mtev the'container' 53'.
V
cam 21 raises the spindle 24. as'a result of which
t
E.’
mined-length of‘ coil the space betweentheejams'
ofjthe cheek offthe,lchucklwilljprevenit‘the'fconff
can be Varied so that the accelerated movement is"
tinu‘anc‘e of theij?rst' layerfso that the; turn im-_'
arranged to ~ coincide with the winding ; of 1 the
mediately following will be'force'd'to lift itselfon
to the end of the?rstlayer, so forming the first‘
t'urn'of the second ‘layer.v The cam‘ grove‘ 33l'n'ow
?nal turn of each layer. s
L)
guides the pin‘, but in an Opposite direction-when‘
the same vcycle'of movementsxare brought --1mo;
_
In ,'order to limit the amount oflladhes'ive still‘
adhering to the wire as it leaves ‘the groove 63_
in the spout,'t_he groove -63_ is opened out at'the
end nearest to the cement container to allow a’
piece of ‘felt or other absorbent material toglb'eL
until theffour layers‘arejcompleted.v , j _ I Y
‘
: ‘At the, end of the cam groove 33 is providedja 10 ?tted flush with the conical surface of’ the spout
62fso that the wire will pass between the spout‘
pin~18 which is reachedby the pin 35 when the
cap and the felt thereby limiting the amount *of
?nalilayer of wire ‘on the former has been'com-"
operation with‘reversal'at theendpf each layer
cement adhering to the wire on its passa e
plete'd; When the pin 35-‘reaches the pinr'l'?, this
pin, as ‘it turns with-the ca'mjcarrier ~26,'5nioves
with-it the pin 35 and thus» itheslide‘ 36to which
the latter is secured.
‘‘
~
~
,
~
through
' I claim:
the ‘groove
’ 63.
15
,
The pin‘39 0n the slide 36 thus‘ moves the’ stop
lever 150 in an anti-clockwisedirection as'a‘ result
of whichthe 'lever’68 is rocked into the path ‘of
the'projection 69 through the medium of the
lever-66 and the spring 61.
a result theg’sh'aft
M is rocked in a clockwisedirection thus dis
» v
"
_1. In a coil winding machine the combination
of a rotatably mounted former on which wire is
adapted to be coiled, means‘ for rotating said
former, a guide for guiding wire onto said form-v
er,'said guide being mounted for oscillation about
an axis transverse to the axis of the former, so
that the guide, during oscillation, will move in‘ a
direction generally longitudinally of the former,’
engaging the spring I3 from the‘end ofthe bush
and means for oscillating said‘guide relative to
9 and relieving the pressure between the friction
lining H and theclutclrmember Hi, raising the 25 the former until the required number oifturns
has been wound onto the former, the initial "pen;
lever 15 and, as a result ofa rotation of the-cam
tion of the guide to the former and the rates:
21,‘ allowing the spindle 24 with the cam carrier
oscillation thereof relative tovthe rotative'speed
28 to drop. During this movement the end 745
of the former beingsuch that the guide ‘main;
has snapped over the spring plunger‘ 41 v‘and the
lever 13, through its‘ roller 15 acting on the 30 tains a substantially‘constant angle of lag rela
tive to turns of wire wound onto the'formerluntil
heart cam"25 has brought the cam carrier 28
the required number of turns has been wound
into its starting position.
'- _
All the parts are now in their starting position.
- The wound former is now removed and a fresh
former is placed in position for winding.
' The operations above described are now " re
peated for winding wire on the fresh former.
The spring 6 between the two collars 4,.5'serves
to take up the shock of vthe engagement ofthe
lever 68 with the projection 69 and to absorb the
energy that is still stored in: the shaft 2,3 thus
preventing damage to wound coil. ‘
‘ ‘ ‘
Whilst the machine has been described above
for winding four-‘layer coils it > will be under
stood that it may be used for winding any num
ber of layers including a‘ single layer coil, ac
cording to the number of cam'slemployed- The
actual following movement of the feed point may
thereon.
I
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'1
"
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V.
1"»
2. In a coil winding machine the combination
of a rotatably mounted former ‘on which'wi're' is
‘adapted to'be ‘coiled, means for rotatingesaid
former, a guide'for guiding wire onto- said'form
er, said guide being mounted for oscillation about
an axis transverse to the axis ‘of the former, so _
that the guide, during oscillation, will .move in‘
a direction‘generally longitudinally of the former,
and means for oscillating said guide.‘ relative to
the former until the required number of turns
has been wound onto the former, the initial posi
tion of the guide to the former'and the rate, of
oscillation thereof relative to the ,rotative speed
of the former being‘ such that the guidemain
tains a substantially constant ‘angle of lag relative
to turns of wire wound onto the formeruntil the
required number of turns has ‘been Wound there;
on, the means for oscillating the, guide being
constructed and arranged to move it throughv a
distance in excess of the distance between the
start and ?nish of wire turns on the former, and
conditions ‘for the‘ winding of the coil-in the man- " means operative when the wire guide reaches the‘
end of its oscillatory movement in one direction
ner described.
.
for oscillating it in the opposite direction to wind
It will be understood from the foregoing that
another layer of turns of wire onto those already
the wire is always fed to the former from a point
on the former and causing the guide to assume
which lags in relation to the point of’ contact of
the wire with the former, so-that the angle of 60 the same angle of lag which it maintained while
the previous layer of turns was being wound,
feed is maintained substantially constant as the
be intermittent instead of regular and in cases
where a small number of turns per layeriare
being wound, it may not be necessary to make
use of a following movement, relying upon the
sudden movement of the feed point from side
to side at the end of each layer to produce the
winding of the layer proceeds by causing the spout
62 to turn about the ‘axis of the spindle 51. In
but in the opposite direction.
,
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3. In a coil winding machine accordingtovclaim
2, wherein means are provided for oscillating said
this manner the separate turns of wire are wound
closely side by side. This result isensured as the 65 guide at a substantially uniform rate during the
application of the separate turns of wire tothe
separate layers are formed by imparting an ac
former, and wherein means are provided for im
celerated movement to the spout 62 in its direc
parting an accelerated movement to said guide
tion of movement as the end of one layer is
at the end of each layer of turns of wire 50 as that
reached and before the‘winding of the next layer
commences which is started with the same angle 70 said guide starts its return movement with the
same angle of lag‘for the second layer of. wire
of lag as the previous layer but in the opposite
turns but in the opposite direction to thelag for
direction.
,
I
,
V
,' In order to allow for minute variations or dis
crepancies in the ‘diameter of the‘. wire which
the ?rst layer of wire‘turns. ' . V.
4. In a machine 'accordlngt'o claim.2,>a spindle 1
would ‘vary the number of turns "for : air-predeter 75 mounted for oscillatoryi'movement, :inean's :con
I seen?
neringsadspindle with the wire guide whereby '
s
and return mechanism -_f.or resett'icg said guide ‘
and said cam device in their startingfpojsitio 5,
said return ‘mechanisml co=operating with said 7
oscillation .01" the’, spindle causes Oscillation ‘bf
the guide,‘ a'lever connected'to said’ spindle for
oscillation therewith, ‘cam means,‘ and means
connecting said lever with the cam means where
pin‘.
_
V
i,
10. In
I a machine according to
2, a riotat‘I-E
able spindle, a lever mounted on said spindlefor '
by relative movement by the cam means and the
lever causes oscillatory movement to be imparted
to the lever and spindlev and the wire guide oscil- ‘
movement'ltherewith, vmeans so __connecting said
lever to said guide that movementlof the lever
imparts movement. to the guide, a second lever a
,5, In amachine according to claim 2, a spindle 1.0’ keyed to said spindlala pin secured to said sec- '
mounted, for oscillatory movement, means ,con
ond ‘lever, a cam device with which said pin,
necting said spindle with the wire guide, whereby
co-operates, a stop. pin carried bysaid cam_de
oscillation of the spindle causes oscillation of the
vice, said stop pin, being‘ located in a position
guide, a lever connected to said spindle for oscil- ,7 , corresponding with the last turn of wire to be
lation therewith, cam means, and means con-i
wound ,on, said ' former; ‘said stop pin being
nesting said lever with the cam meanswhereby
adapted to co-operate withthe pin carried by
relative movement by the cam means and the
said second lever, a second pin secured to said
lever causes oscillatory movement to be imparted
second lever, arocking lever co-operating with to the lever and spindle and the wire guide oscil
said second pin, and mechanism’ for returning
lated, a second lever mounted on said spindle ‘for 20 the mounting means for the former to its start
oscillation therewith and means for applying a
ing position, said return mechanism being asso-j
springbias to said second lever to cause a re-,
lated
-
'
>
ciated with said rocking lever.
sistance to movement to be imparted to said ?rst '
lever and said spindle.
,
‘
' 6. In a machine according to claim 2, a spindle
mounted for oscillatory movement, means con-1
necting said spindle with the wire guide, where;
by oscillation of the spindle causes oscillation
of the guide, a lever connected to said spindle
for oscillation therewith, cam means, and means
connecting said lever with the cam means where
by relative movement by the cammeans and the ‘
lever causes oscillatory movement to be imparted
to the ‘lever and spindle and the wire guide os-'
cillated; a container for coating material, and
-
l
_
'7 a
11, ‘In a machine according to claim 2, includ-.
ing a driving shaft, a driving pulley r'nounted
freely on said shaft, a friction clutchvincluding:
two clutch elements, one of said clutch elements
being secured to said driving pulley and the
second of said clutch elements being keyed to
said driving shaft, a pair of, collars on said driv
30
ing shaft, one ofsaid collars being. keyed to said
driving shaft, whilst the second of said collars
is loose on said driving shaft, a coiled spring
lapped around said collars, one end‘ of said coiled
spring being secured to one of said collars and
the other end of said coiled spring being secured;
means'for applying material from said container ~ to the second of said collars, a projection on said
to, wire passing tosaid wire guide, whereby the
loose collar, a rocking lever adapted to COPOPBIF,
wire wound-on said former will have a coat~
ing of said material thereon,
1
ate with said projection‘, means for holding said ~
rocking lever out of the path of said projection
.- 7. Ina machine accordingto claim 2, a spindle it) during, the wire winding operation, and means i
mounted for oscillatory movement, a lever keyed
for moving said rocking lever into the path of
to said'spindle, a tension spring between said
said projection when the wirewinding operation
lever and a part of the operating means for
the wire guide, a pivotally mounted arm, a plate
carried. by said arm and interposed between
said leverand said part of the operating means
has been completed.
.
12. In a machine according to claim 2, a ro
tatable spindle, a'lever mounted on said spindle
for movement therewith, »means so connecting
for the wire guidaa second lever keyed to said
spindle, a pin carried by said second lever, and
said lever to. said guide that movement of the
cam means with which said pin cooperates tov
control the oscillation of the wire guide.
lever keyed‘to said spindle,,a pin secured to said
'
8. In a machine according to claim 1, wherein
said guide comprises a conical spout, said spout
being provided in its periphery with a longi
tudinal groove extending along the entire length
of said spout, and a conical cap rotatably fitted
lever imparts movement to the guide, a second
0 second lever, a cam device‘ with which said pin
co-operates, said cam device including a cam
carrier, a spindle on said cam carrier, a shaft,
a cam on said shaft, a spring actuated member
in said cam,v said cam being adapted to co-Oper
ate with said cam carrier spindle, a rocking lever
on said spout, said cap beingof corresponding
‘keyed to said shaft, and means for actuating
shape to said spout, said cap having a longitudi
said rocking lever, the arrangement being such
nal slit therein, the arrangement being such
that during the wire winding operation the rock-_
that for inserting the wire into the said groove
ing lever is in a position in whichthe cam holds
the said slit is brought into register with said 60 the cam carrier in a raised operative position,
groove, whereupon the slit is moved out of reg-‘
whilst when the wire winding operation has been
ister with the groove so that the cap prevents
completed the rocking lever is moved into a posi
the wire'leaving the groove.
‘ ‘
‘ ,
9. In a machine according to claim 2, a rotat
able spindle, a lever mounted on said spindle for’
movement therewith, means so connecting said
lever to said guide'that movement of the lever
imparts movement to the guide, a second lever
keyed to said spindle, a pin secured to said sec~
0nd lever, a cam device withwhich said pin'co
operates, a stop pin carried by said cam device, '
said stop pin being located in a position cor-re?
spending with the last turn of wire to be WQImd-V
‘ -on the former, said stop pin beingadapted to co
{Operate with the, pin carried by Said second ‘lever,
tion so that the cam allows the cam carrier, to
.dIOD into the inoperative position under the
action
of‘sravity,
'
‘
'
V
‘
13, In a machine according to‘ claim 2, the
combination comprising a driving shaft, a chuck
mounted on said driving shaft,jthe former being
mounted on said chuck, a secondary shaft, a
,gearingbetween said driving shaft and said sec
ondary shaft whereby said secondary shaft is
driven ‘in the‘opposite direction to said driving _
shait, a worm on said secondary shaft, a cam
device pperatively connected tov said guide. a
2,412,280
9
10
spindle connected to said cam device, a worm
wheel loosely mounted on said spindle, said worm
wheel having radial recesses in one face thereof,
rangement being such that when the stop lever
is actuated at the end of a coil winding opera
tion the third lever is disengaged from the sec
ond lever and the spring pulls the rocking lever
into the path of said projection.
16. In a machine according to claim 2, the
combination comprising a driw'ng shaft, a chuck
mounted on said driving shaft, the former being
mounted on said chuck, a secondary shaft, gear
being secured to said driving pulley and the 10 ing between said driving shaft and said sec
ondary shaft whereby said secondary shaft is
second of said clutch elements being keyed to
driven in the opposite direction to said driving
said driving shaft, a pair of collars on said driv
shaft, a worm on said secondary shaft, a cam
ing shaft, one of said collars being keyed to
device operatively connected to said guide, a
said driving shaft, whilst the second of said
and a tooth secured resiliently to said spindle,
said tooth co-operating with said recesses.
14. In a machine according to claim 2, in
cluding a driving shaft, a, drivingpulley mounted
freely on said shaft, a friction clutch including
two clutch elements, one of said clutch elements
collars is loose on said driving shaft, a coiled
spring lapped around said collars, one end of
said coiled spring being secured to one of said
collars and the other end of said coiled spring
spindle connected to said cam device, a worm
wheel loosely mounted on said spindle, said worm
wheel having radial recesses in one face thereof,
a resilient heart-‘shaped cam secured to said
spindle, adjacent said worm wheel, a tooth se
being secured to the second of said collars, a
projection on said loose collar, a rocking shaft, 20 cured to said heart-shaped cam adjacent the
point thereof and on the face thereof adjacent
an operating lever on said shaft, a spring on
the recesses in said worm wheel, said ‘tooth be
said shaft, said spring being adapted to hold said
ing adapted to co-operate with said recesses, and
clutch in its engaging position, a rocking lever
a spring actuated lever co-operating with said
keyed to said shaft, said operating lever when
heart-shaped cam, said spring actuated lever
moved into an operative position serving to move
being adapted to return the heart-shaped cam,
said rocking lever out of the path of said projec
and thus the cam device, into its starting posi
tion and to move said spring into clutch engag
tion after the coil winding operation has been
ing position, means for holding said rocking lever
completed.
out of the path of said projection and means for
17. In a machine according to claim 2, a ro
releasing said rocking lever.
30
tatable spindle, a lever mounted on said spindle
15. In a machine according to claim 2, in
for movement. therewith, means so connecting
cluding a driving shaft, 3, driving pulley mounted
said lever to said guide that movement of the
freely on said shaft, a friction clutch including
lever imparts movement to the guide, a second
two clutch elements, one of said clutch elements
lever keyed to said spindle, a pin secured to said
being secured to said driving pulley and the sec
second lever, and a cam device with which said
ond of said clutch elements being keyed to said
pin co-operates, said cam device including a
driving shaft, a pair of collars on said driving
plurality of cams which are relatively adjust
shaft, one of said collars being keyed to said driv
able to allow for minute variations and discrep
ing shaft, whilst the second of said collars is
loose on said driving shaft, a coiled spring lapped 40 ancies in wire diameter and for varying the
number of turns of wire in each successive layer.
around said collars, one end of said coiled spring
being secured to one of said collars and the
other end of said coiled spring being secured to
the second of said collars, a projection on said
loose collar, a rocking shaft, an operating lever
on said shaft, a spring on said shaft, said spring
being adapted to hold said clutch in its engaging
position, a rocking lever keyed to said shaft,
said operating lever when moved into an op
erative position serving to move said rocking I
18. In a machine according to claim 2, a ro
tatable spindle by which said lever is carried, a
rotatable spindle, a lever mounted on said spindle
for movement therewith, means so connecting
said lever to said guide that movement of the
lever imparts movement to the guide, a second
lever keyed to said spindle, a slide slidably
mounted on said second lever, a pin on said
slide, a cam device with which said pin co-op
erates, a stop pin in said cam device, said stop
lever out of the path of said projection and to
move said spring into clutch engaging position,
pin being adapted to cc-operate with said pin at
means for holding said rocking lever out of the
path of said projection, and means for releasing
the end of the c0i1 winding operation, a second
pin secured to said slide, and a stop lever co-op
said rocking lever, said means for holding and r
erating with said second pin.
releasing said rocking lever including a. second
lever keyed to said rocking shaft, a rotatable
spindle, a spring operatively associated with said
spindle mounted for oscillatory movement,
rotatable spindle, said spring normally tending
19. In a machine according to claim 21, a
means connecting said spindle with the wire
guide, whereby oscillation of the spindle causes
to urge said rotatable spindle into its normal GU oscillation of the guide, a lever connected to said
position, a third lever keyed to said rotatable
spindle for oscillation therewith, a rotatable
spindle, said third lever being adapted to engage
member having a cam groove therein, a, pin car
said second lever during operation of the ma
ried by said lever and extending into said cam
chine so as to hold 'said rocking lever out of
groove, whereby rotation of said rotatable mem
the path of said projection, a spring connected ~. ber causes an oscillatory movement to be im
at its opposite ends to said rocking lever and to
parted to the lever and spindle and the Wire
said third lever, a stop lever on said spindle, and
gride oscillated.
means co-operating with said stop lever, the ar
JOHN WILLIAM MILLER.
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