Dombrowski, H. G.

Fischer, J. A.

English

NASA Technical Reports Server

, REPLY TO 
ATTN OF: Gp 
TO: 
FROM: 
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 
WASHINGTON. D.C. 20546 
October 15, 1970 
~ ~ ~ / ~ c i e n t i f i c  & Technical Information Division 
Attention: Miss Winnie M. Morgan 
~~/0ffice of Assistant General 
Counsel for Pateilt Matters 
SUBJECT: Announcement of NASA-Owned 
U.S. Patents in STAR 
In accordance with the procedures contained in the code GP 
to Code US1 memorandum on this subject, dated June 8, 1970, 
the attached NASA-owned U.S. patent is being forwarded for 
abstracting and announcement in NASA STAR. 
The following information is provided: 
U.S. Patent No. 
Corporate Source 
Supplementary 
Corporate Source 
. General Motors Corporation 
NASA Patent Case No.: XMS-02383 
Gayle Parker 
Enclosure: 
Copy of Patent 
'I 
I 
0 I 
LL 
r- I 
(CATEGORY) 
https://ntrs.nasa.gov/search.jsp?R=19710006443 2020-03-17T02:41:15+00:00Z
Jan. 24, 1967 J. A. FISCHER ETAL 
ADJUSTABLE TENSION WIRE GUIDE 
F i l e d  July 31, 1963 
3,299,91:3 United States Patent Ogce paken,, Jan- 2% 196'7 
Referring now more particularly to  TIGBJRES 3 ani{ 
3,299,913 4, it is seen that the wire puide T E  i:-ilrxdes o:gtc: r i ~ c i  
ADJUSTABLE TENSION WIRE GUIDE inner tubular parts 20 and 22. J i  is ii31aorta ? t1,;t t le  
.gose~h 8. F i s c h e ~  alld Henry 6. DonnbrowsPai, Ha'es outer cylindrical of palt 22 bc crncolh 1, d 4 0 1  
Corners, Wis., granted Po National Aeronautics and 
Adlllinisakahion pp,lder pro.iisiow of 42 u.s.~. 5 this reason the tubular part 22 ic plefernb?y Toi?>cd of a 
2157(d) glass material. The tubular part 20 ruay like3iA\e kc 
Filed July 36, 1963, Ser. No. 299,042 formed of a glass material and the ends of T L I ' s  Zp 
10 CEaii~as. (C!. 140-123) and 22 are secured to the nozzle 18 in any well h~lown 
manner. One pair of ends of the li~h~r!ai- par ts  20 and 
This invention relates lo an adjustable tension wire ,,, 22 are positioned on an opposite side of tFic ei1n111::r pol.- 
guide which is capable of guiding wire into slots in a coil tion 24 of the nozzle 18. The guide tip 18 !?lay be formed 
form and which is provided with means for adjusting the of mctal material and it is seen thzt ?his guicfc tip has :I 
tension of the wire being applied to the coil form. central aperture 24 which can receive the wi!-e 14 1-tin: 
One of the objects of this invention is to provide a wire fed through the wire guide. The lon,oitud;nal axis of 
winding device which uses the frictional properties of 1.i the smooth bored ho!e 26 coincides  substantial!^^ wit11 the 
coated or un,coated wire spirally wonnd on a sn~ooth cy- longitudinal axis of the tubular pari 22. 
Iinclrical surface to obtain a means for providing wind- The wire guide of this invention has ail adji~siz~ble plug 
ing wire tension. Xi1 carrying this object forward, the 28 including an integral annular section 30 v!!?ich 6";; lit- 
wire is spira!ly w a n d  on a cylindrical member which may tween the ends of the tubular parts 20 and 22. Ti!: p3i't 
be formed, for example, of glass and the tension of the 20 28 is rotatable with respect to the parts 20 and 22 and has 
wire is varied by changing the number of turns of wire a slot 31 which is generally parallel lo the Io:igilr?clir~;~! 
which are spirally wound 011 the smooth cylindrical mem- axis of the wire guide. This slot receives tile wirc 14 as 
ber. is clearly depicted in the drawings. The siot 21 remailis 
Another object of this invention is to provide a wire in alignment with the space 32 forrned by the ti~bitlar 
guide which has adjustable means for varying the number 25 parts 20 and 22 during its rotation to varioris po~i t io i?~.  
of turns of wire which are wound around a cylindri- The tubular part 22 which is formed of glass maleriziE 
cal member to vary the tension of the wire. has a smooth bored hole 34: the axis of which is located 
Still another object of this invention is to provide a wire substantially normal to the longitudinal axis of the tub?- 
guide which has means for adjusting the tension of the lar part 22. 
wire and wherein the wire is enclosed to protect the sur- 30 When using the wire guide of this invcrition. the wire 
face of the wire as it is being applied to a suitable coil is fed through the opening 31 in the acljus~able pliig 28. 
form. By enclosing the wire in the wire guide, the wire is The wire is spirally wound around the ottter periphery of 
not handled by the operator and the wire therefore cannot the glass tube 22 and then is passed lhrouyh the oycnii?g 
be contaminated with grease, oil or other contaminants 34 in the glass tube. The wire is then fed through central 
that might be deposited on the wire that might form a 35 opening 25 of the guide tip 18 and the wire g~1icl.s is then 
surface that would be detrimental to later processes such ready for  use in applying wire to a coil form. 
as epoxy encapsulation, molding and the like. In applying wire to a coil form. one end of the wire 
Still another object of this invention is to provide a wire 64 is fixed as by taping the wire to a fixed s~!pport 36 
guide which has a means for adjusting the tension of the shown in FIGURE 1. The plug or knob 28 is then ro- 
wire and which is provided with means for indicating the 40 tated to wind the wire spirally around the outer siirface 
amount of tension of the wire. of the tubular part 22. If it is desired to increase 'rhc 
Further objects and advantages of the present invention tension of the wire, the knob or  plug 28 is rotated in such 
will be apparent from the following description, reference a direction as to increase the number of t ~ ~ r i l s  of spirri!l,y 
being had to the accompanying drawings wherein pre- wound wire engaging the outer surface of the tuhrrlar part 
ferred embodiments of the present invention are clearly 4 5  22. If it is desired to decrease the tension, the part 28 
shown. is rotated in an opposite direction to unwind trrrr:s of 
In the drawings: wire from the outer surface of the tubular part 22 .  
FIGURE 1 is a perspective view of a wire guide made In order to indicate the amount of tension of thc: wire.  
in accordance with this invention and shown for use in the part 20 call be provided with an arrow arid tile ad- 
applying coils of wire to a coil form. 50 justable knob 28 can be provided with suitab!e n~arkir-~gs 
FIGURE 2 is a view partly in section of a wire guide or numbers which will indicate to the operator the amount 
made in accordance with this invention. of tension being set by rotation of the knob %. This i.< 
FIGURE 3 is an  enlarged sectional view of the wire depicted in FIGURE 4 and it is apparent illat tine a;.ro\v 
guide illustrated in FIGURE 2. might be put on part 28 and the numbers oil part 20 il s o  
FIGURE 4 is an enlarged view of a portion of the wire 55 desired. 
guide illustrating one method of indicating the wire ten- When the proper wire tension has been a:Ijiis?ed anti 
sion. when one end of the lead has been taped 01- otherwise se- 
Referring now to the drawings and more particularly cured t~ a stationary part, the wire guide 12 is g.raspctl 
to FIGURE 1, a coil form which in this case is a stator by the hand and then moved in the slots of the coil lorn, 
for a dynarnoeleclric machine is illustrated which is desig- 60 10 to apply coils of wire to the slols. As the wi:.e guide 
~-,atrd by reference numeral 80. This stator has a plu- 12 moved either by hand or by a machine, the wire is 
rality of slots which are to be filled with coils of wire. ~rogressively fed through the wire guide and the propel- 
The coils of wire are applied to the slots of the stator 10 tension is provided due to the fact that the wire is woxir;:! 
by the adjustable tension wire guide designated in its en- s ~ i r a ~ l l ~  around the outer surface of the t~ibi!1~1. part 22 a11~i 
tireiy by reference numeral 12. The wire guide 12 is 68 is in frictional engagement with this outer su~.Face. Bt 
fed with wire 14  from a source of supply whic.h takes the will, of course, be appreciated that the more wirc (ha t  
form of a spool or  de-reeler 16. The wire is applied to engages the outer surface of the part 22. the jiienter !c:~- 
the slots through a guide tip 18 which is more fully de- ~ i o n  is provided and for this reason. the terlsion is rcgu- 
scribed hereinafter. The wire guide 62 can be used man- lated or  set by rotating the knob 28 to vary the number 
~ia l ly  by simply grasping it with the hand o r  it can be of turns spirally wound on the outer surface of  he tubu- 
moved by a machine if so desired in the correct path to lar part 22. 
apply coils of wire to a pair of slots. It will be appreciated that the wire guide of [his iriven- 
3,299,913 
9 3 4 
t 7'1 proglde? n means for lnanually applying wire to a an opening in the wall of said inner tubular member com- 
cc , i  forrr, wLthort direct contact between the hands of municating with said chamber and providing a feed pas- 
i l  2 op2iator aqd thi: wlre. In  addition, the wire guide sage for wire passlng through the opening of said guide 
t thi5 iniiclit~on piolides a simple and exact method of tip, an adjustable member adjustable relatlve to said inner 
\ ,  sy n: t ~ c  te~lsion of the wire as it is being applied to 6 and outer tubular members, said adjustable member hav- 
'1 LO I "USIII 7113~ device is useful in applying wire to a lng an opening for feeding wire into said chamber and in 
L,I!L form that has a coated insulation bonded to  it or  engagement with the outer periphery of said inner tubu- 
~ 2 7 7  ba L I I . C ~  v ~ i ~ n  u coated wire. lar member, said adjustable member being capable of 
VY h ,e th,: embodiments of the present invention as winding and unwinding coils of wire on the outer periph- 
'+:r:in ii ,io5ed. collstitute a pieferred form, it is to be 10 ery of s a ~ d  inner tubular member to vary the tension of 
i -L!LI Lomi t r j i  t other forms might be adopted. said wire as ~t is fed through said wlre guide. 
W+I,  i 15 ~ l a imcd  is. 7. The wire guide according to claim 6 wherein the 
W An .I. gualab!e tension wire guide comprising, a opening in the inner tubular member is substantially radial 
t ~Imlr i  ll-mbcr lavrng an outer cylindrical surface, said and wherein the opening in  said adjustable member has 
1 lbuiar  n :i-iLb:r havinz an opening In one wall thereof 15 an axis which is substantially parallel with the longitudl- 
v," 1L htorii~\ a feed-thlough openlng for wire that is ndl axis of said tubular members. 
tila;ti 1 to be applied to a coil form, and a member ad- 8. An adjustable tension wire guide comprising, a tubu- 
JL ,tz,biz ieiat~ve to ~d tubular member, said adjustable lar member havlng an outer cylindrical surface, a guide 
~ ~ i ~ b i r  iiav ng 'L slot means for receiving wire that is tip hav~ng an  opemng communicating with the interior of 
t,cr t";ough said wire gu~de, said adjustable member be- 20 ~ a ~ d  tubular member, an opening in one wall of said 
17',blc O !  w:ncIIng or unwinding turns of wire on tubular member for  feeding wlre through the interior of 
,11c o> t i r  zriii,l:e 3f said tubular member to vary the ten- said tubular member and into the opening formed in said 
.ion o V Y I I ~  bLirjli: fcd t h r o ~ g h  said wire guide, said wire guide tip, sald wire being adapted to be wound around 
g 1,de 11 Ivinz t n  outlet opening allgned with the interior said tubular member and in engagement with its outer 
i r \:rd tilbuiJr rne~nbei for receiv~ng wire passing through 25 cyllndrical surface, adjustable means rotatable with re- 
;) c-en r : i  i l  sa;d ~'111 of sald tubular member. spect to said tubular member, said adjustable means hav- 
2 f 112 n i i  e g'iide according to claim 1 wherein the lng an opening for feeding wire around the outer periph- 
iiiSi~1a1 r n ~ ~ n b t r  IS iormed of glass material. ery of sald tubular member and belng capable of adjusting 
3 1 hz wlrc gi~id,: accordmg to claim 1 wherein the the number of turns of wire engaglng the outer cylindri- 
Y p 2 ~ ? l ~ ~ ;  in ih, ti~bul'ii member IS located substantially 30 cal surface of said tubular member. and means enclosing 
, i L ile Ion~iludinal axis of the tubular member the outer cyl~ndrical surface of said tubular member to 
.I?,! u h 2 i i 7   he blot lil the adlustable member has an ploteit s a d  wire when ~t is being fed th ro~~gl l  said wire 
a i l 3  $ i i i i ~ ' ~  1, i~iS~t,iatially parallel to the longitudinal axis guide. 
i the tirIJiiiLtr member. 9. The wile guide according to claim 8 wherein the 
4 / I ,~d~iia~aI?lz tenaion wire guide comprising, a tubu- 35 t~ibular member 1s formed of glass material. 
i iricn d,r hGLving an outer cylindrical surface, a guide 10. The wire guide according to claim 8 wherein the 
tip ii,iiiry a central opening communicat~ng with the in- openlng in the gu~de  tip has an axis which substantially 
r . i r <  r oi \,~,ii tiii)~i!dr member, an opening in one wall of colncldes w ~ t h  the longitudinal axls of the tubular 
1 - 1  t I J L I I I ~  m-n-be1 t o r  feeding wire to the central open- member. 
,I:' I h s i d  giiicle tip Piom an outer surface of said tubu- 40 
1,tr i~lcrnbcl '11:d means for c u ~ d l n ~  wire against the outer References Cited by the Examiner 
- - - 
s~irf:!cc of ::aid t i~b~ i l a r  member, said last-n'amed means 
!,.:in? ;:iljiist:~bI- relative to the ouler surface of said tubn- 
lar nlcinhcr for winding and unwinding coils of wire on 
i:,iii o:.;ter ~ i . i~ I : i c~  of said tubular member. 
5. 'Tlii- wire guide accorcling to claim 4 wherein the 
;;ii.i:i-;nble means has an opening for feeding wire into 
iil,: wirc g!ii:le and in engagement with the ,outer surface 
of tl:e t~ibiiinr mcmber. 
6. iin aiijiistab!e tension wire guide comprising, a guide 
hip h-iving a n  opening. inner and outer tubular members 
3 1,960 
4j 609.106 
1,011,986 
1,049,361 
1,997,709 
2,474,463 
50 2,798,681 
CHARLES 
UNITED 
4/1861 
8/1898 
12/1911 
1/1913 
4/1935 
6/1949 
7/1957 
W. LANM 
STATES PATENTS 
De Forest ---------- 
Lauritsen ---------- 
Migliora et al. ------- 
Holmes --- -- ------ - 
Williams - -- --- - - --- 
Burrell ------------ 
Beverino - -- - - - -- -- - 
A M ,  Prii?zury Exanzi~~er. 
I L C ~ V ~ I ~ ~  e m s  engLlgln~ said guide tip, said inner and outer BENJAMIN A. BORCHELT, E ~ ~ , , ~ ; ~ ~ , . .  
ibiii,~i- fi;~~nheis dclining an annular longitudinally ex- 
t i  ncling cc:dmSer, the interior of said inner tubular mem- L .  A. LARSON, Ass i~ t~n t  Examiner. 
h,i xrnrnirniL3!ing with said opening in said guide tip, 55 


Adjustable tension wire guide Patent

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