Note: Descriptions are shown in the official language in which they were submitted.
207~7~1
TITLE OF THF. I~VENTION
~OMPUTORIZED STORAGE AND RETRIE~AL DEVICE FOR ~ISCS, COMPACT DISC5,
~ICROFIL~, CA5SETTES OF ANY ~IND ETC...
lr,e pre.C;erlt inventi,.,n relate~i tll the field ,-,f r.c/mpllter
ani.mat;ecl stc~irc.~ge systems ancl m,-,re partiru].arly t,., a stc~rarle clevire
havi.n!lcln i.n.jertil::ln mechc.~nisrn whirh "ptimi~es the avai.la~le space
thuG3 mi.rli.mi.~irlrl the c~ e c,f the st,3lrarle clevi.ce..
Mc"re pecifically, rem,-,vah:le maslnetj.c discs are useri
e.~tensively in t~,e pers,-,nal c,,mputer envir,:-,nment fnr prr,viJinr
back:-up support fc,r hard cli.sc data~
In nllmer,-,us applirati.c,ns, the increasinslly larsle num~er c~f
rem,-,vable mac~netic discs has createri a stc~racle prc~blem.
Tclcircumvent the prc~lem, varic~us devir.es have ~een pr,-,pc~ried~
IJ.S. patent 4,8~6,:~61 disclclses a carc~ussel hc,lder fc/r cc~mpl.lter
disr.s. The discs must hc~wever be manually inserted and retrieved.
U.S. patent ~,6C~g~3~ discloses an apparat,lls fclr stC~rinrJ
disperlsinc~ flc,ppy cii.srs and other panel-shaped c,bjects. The
apparatLIs includes a rotatahle storac~e caroLlssel fc:.r flc,ppy discs
and a machanic;m fc.r selectively dispensincl discs frc.m the
caroLIssel~ The apparatus disclcsed fi~ed stc.rac~e cc,mpartments c~n
a carc-ussel~ each cc.mpartment havin~ lateral walls secured tc~ the
carc,ussel~ A mctc.r is mcved between twc. operative pcsitic.ns by a
:sloped surface which cc.ntacts and is slida~ly reciprocated across
a c3ase c.f the mctcr to raise and lc.wer the motc~r.
The carc~ussel is adapted to rc,tate until the fi~ed stc~rac~e
cc,mpartment cc,ntainincl the selected disc tc be ejected is
positIc~ned in ft-c~nt of a dispensincl slc~t prc~vided in the frame.
.
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207 ~ 7~1
I t 1(:.? ~ C t l~ I. ' i L I. ' ~ l l.:.` c:l c:- i..l t C l f t; I l ~? ' .i L ~ , tl y c ~ . r - c l
eCC:Q ntrlc: L'N .l.y m~ unt; e(:l ::1 n a c~ m mPmt:1el, the r:an"ne~nt:ler briincl r--tateci
c.nr.? flll:L tur n tly ~ rc.d 1i. n~ed t :, a m.-,t~"r~ -rh e 1 c,c:l e~;tenc1; al~ ng the
r c::ltat;:i.,::,na:L .~,.i. 5 ':lt the car-.ussel a The pe-~r1el--sllc~Fler:l .-,bjec:t h al5 a
relati.vely f:l.at p~l al]el c:,::~nfi.cllllrati.~ n with tw.~ .a~1rc3er surfaces ancl
t.:::~l.n r :Latr3rr~]. c;ma:Ller spa(:ir1cl sur face~-i k:eepinc~ t l-le la rner surfc?~ceci
:i n a S r:~a C ecl r e I a t i. ,::, rls h i p .
The r,-,cl pu~ihes on the spacincl sur faces whirN, runs para:l le:L and
c~djancent the rr..~tati,-~nal aY~ic; of the car,-,usc,el. C:)ne ~-lf the major
clrawhc?,cks ,-,f the discll-,secl ejectir,n system resides in t~le fact that
since the disk:s are raclially pllshed lluty The ~ipaci.r1c1 surface "f the
parallel shapecl c,bjec:t ,::,n which the rt~d pushes m1lst br-~ c/f a
thick:ness sutfiri.ent f,_lr the r~.~d t,, hc~ve e~ c!l-ll-ld c-lntactincl surface.
lhe thickr1ess t.f each cr~mpartment containir1cl a panel-shapecl
~:.b ject limits the number ,-.f panel -she~ped ~..t:~ jec t which ce~n be
pt.siti4necl ar.- und the ce~rrussel havi.r~cl a cliven cli.ameter.
Furthermt.re~ the system is c:~ ite meche-~ni.cally c:,-:,mpleY ë.~nd thus
sue,ceptible tc hreak dc.wn. The pe~nel-she~ped r.bjects are n,-,t
ju:~tapcsecd and are nct inserted in a slidable pr..ck:et he~ving a
h4c.lkinc1 member fclr p4sitively cJrippinc3 the p~:lcket~
~l~y E THE I~N
A st4re~cle ~nd retrieval clevice fc~r cc.mputer discs, micrt.films~
c4mpact cliscs, ce~ssettes etc~ i.s ct.nnected tc. e?~ cc.mputer terminal
f4r se1ectively identifyincJ 4ne t~f the r~iven ..bject with the help
..f the bar c~cle identificati~n system tr phr.t~:. sens~r. The device
includes a turntable supp4rtincJ a plurality t-f raclially juY~tapr..sed
tlat pock-ts~ each pocket haviny ~ ho~lkiny member on lt's periphery
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207~7
t~ r~ F:~ ii.r-lc~ r ~;c:~ i.r~ llE~ C11.5C.. 1~ C~ Ilr~ -;rlicl
,:;u~ nt;at~ a i.~:i F:) rllViC~ fl W1.t h a ve r t i.c.~.~l. r-~lc~t; mli al.J.I...IWI. n Cl 1...l ne pC.I( ket
t,::. (;].i.cle ~ utn Ihe turntat:i:l.e i..~i ~ ,.lated anc:l i.5 (;t;,:,pF:led at
preL:let;ermineL:I per~l.til:3rlr;~ The device r:c:,ntai.r~s h~.lF~incl means f,.,r
Ll ri.pF3.i.rlrl the t"-"~F~ member .-,f the s E~ lect:ecl p.-~c:k:et fcn~ slicli.n Ll the
latter l,hrcll..~r~h the ~;lrlt l::lutr;i.cle the cl::,very al:Lc:,winLI manurll
wi.thclrr..~wincl 1::11 the cli5c inr;i.cle the pc,ck:et~
BRIEF- D CF!IPTIUN UF T E_RAWIN6S
Figure .L i.s a per~ipec-tive vi.ew ,.-.,f the clisc storage device
embc,dyiny the inventic,n p,-.sitic,neLI aLl jr-~cent a c ,-,mputer terminal,
Figure ~ ; a tc~F3 view ,...,f the stc~raLle clevice,
Figure 3 iri a frllnt view "f the stc.rage clevi.ce,
Figure cl ir; a crnss--sE~cti,..,nal view takeri a:Lc~ncl arr c~ws 4-4 rlf
figllre ~,
Fi.gure S is a t,-,p crc,6s-sectic,nal view takr n alc~ncl arrc,ws
5 -S clf f iyure 3~
Fj,LIUre ~; i.5 a crc/ss~sec tional view tal~en alc,ng arrclws 6- 6 c,f
fi~ure S illuc~tratin~ the driv.inc~ sc~mpc~nents of the in jectic,n
mechani.sm,
Figure 7 is a partial tc,p view ~:,f the injectirln mechani.sm,
Ficlure 8 is a sicle view c,f the injectic~n mechanism~
Ficlure 13a is a side view clf the injecticln mechanism i.n a
piv~ted pc~sition with a disc beincJ ejectecl fr~lm the stclracJe cle~ice,
FiL~ re g i5 a sicle vi.ew clf an al ternative embc,climent clf the
e jectic~n mechani.sm,
Ficlure ~a i5 a side~ view l ~f the same al ternative embocliment
cf th= ejectj.c~n m=chani.sm with a clisc bein~ e jectecl frclm the
' ~
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207~751
F:ic~ure ~) is a t,-,p vir-~w ,::,f the Sr~me r.:ll ternative elTlbl'::lCIiment l-I'T
the i.nventi."n,
Ficlure 11 is a frl_,nt view c,f tt-,e cle-~r reducti.c,n mer~ns ,-,f the
ejecti.,::,n mechr:.~rli.cimy
F:j.cll.lre :l:;l is c-l shemc~tic perspective view ,.Jf ~ p~,clret used with
l,l,e same alternr.lt:i.ve eject:i.,-,rl mechanism,
F~i.clure.:l3 i.s ~.~ sic:le view c:~f yet annther altc-!rnati.ve embc~climent
c,f the ejectic,n mechanisrny
Fi.rlure 13a i.5 a si.de view c,f the same alternative embodiment
i11ustrc-~teci in fi.yure 13 wi.th a disc in an eje~ted pclsiti,.,n,
Ficlure 14 ic~ a t,-,p view of ficlurre 13a,
Fiyure 15 is c-~ cr,3ss-secti,-,nal view taken a1~,n~ ~rr.-.ws
15-15 r,f figure 14y
Fiyure 16 is a perspecti.ve view clf a p.-.cket used with the
ejection mechanism illustrated i.n fiyurres ~ cancl ~a,
Fi~ure 17 is a perspective vi.ew of a pr/cket used wi.th the
ejectir.~n mechanism illustrated in fi~ures 13 and 13a,
Fi.clure 1~ i.s a view rlf ca clispensin~ unit stack.ed rne trlp r,f
the clther and elertrclnica11y linked, and
Fiyure 13 is a r1r.,se-up view tcaken insiJe arr,-,w lg c,f fi~ure
18 cf a pluc~ and srlcket arran~ement used tc. electc.nically 1ink
vertically stacked dispensincl units.
;DETAILE~ DE~S RIPTION OF THE PREFER~g~
Referrin~ tr/ ficlures ly ~ and 3~ there is sh~wn ~ dispensin~
unit 1~ electrc.nically 1inked tc. a c4mputer terminall4~ The
dispensincl unit 1~ hc~s a substantic~lly ,-,rthcu~c.nal cc,ver 1
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F:~r~ te(:tl.vel.y P~c~ S L r~(l a ci:~sp e n~.;i.r~ nl.t ~1nrl F:~r~ vi.d eL:I wi.th ~7lt75
8 tr,r~:~uc~r, whi.(-.r, cl cempul;er f l~ F:)F:Iy cli.sc :. I) ,::,r ar~l::lther panel -- 5hc~ pecl
,-,t:~ jec ts can t.,e c:l:i.s pf.~ nsr.~cJ~
f~lS il lustrc~ted ir~ figllre 4~ the c~ ver 1~; i5 m,-,llr~tec:l ~-ln a base
-strll(:l;urr~ :. A verti.cal spac:incl element ;~4 restinç.l ,-,n the base
s.itru(:l;u r e .:~:; supF:~c~rts a turr)tat)le :.~; r,::~tatat)ly m,.,llrlted ~ n a rin Cl
t:~earincl :;~8. ~rrle turrltablQ _8 is-i me(:harlically l.ink:ecl by a ti.ming
t:~e 1 t 3(:) t c, rl r '3 t a t i. ,::, na 1 m,::, t c, r ~r3 ~ 1 ~
As illl.~s3trated mure speri.fic~lly in fi.gure 7, ~ suppc,rting
ring 34 i.5 mc~unted peripheral ly t,-, the turntable :~i by a raclie~l
linkincl cclmpclnent ~f.. The radial linh:irlg c,-,mp,.lnent :~6 is fi~,;ed t,-,
the turntable ~6 by a set clf bcllts 88" A set c,f flat pc~ck:ets 40
which are adaptecl t,-, prc,tecti~ely enclose eac h f lclppy disc "r l-lther
panel -shaped c,b jects tc~ be stc~reci are radial ly ju~f. tapc.~sed on the
periphery clf the turntable :~6~ ~s illustrated m,.,re specifically in
figure 16, the pclckets 4(:~ have a substantially pë~nel-sh,~pe
c:rlnfiguration anti ë~ tc,p c/penincl 41 prc,vided with a c:arveri
prehencï,ic,n rer.ess ~3~ The pc:,ckets 4CJ are alsc.~ provided with a
grc,c,ve 4~:' aclaptecl tc, snappingly grip the suppc,rtincl ring 84~
As seen in figure 5, an ejectil~n mechanism 44 is pc~siticlned
acljacent the slc,t 18~ F~eferring nc,w mclre specifically tc, figures
6, 7J ~3 and 8a, the ejectic~n mechanism 44 cclmprises a gripping
element 46 mc.unted c,n a pivclting shaft 48~ The pivclting shaft 48
is linked t4 a spaceci reductic~n unit 5C~ driverl by a reversible
` : : e l e c t r i. c a l mc, t c, r 5r~ ~
:: Ficlure~3 8 and 8a illustrate mc,re clearly the ejecticln acticn
clf the ejectic,n mechanism 44~ Each c,ne clf the pc~ckets 4C~ is
~:: :
:' , . ' . ' ~ . ': .. . : : '' :
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.... . . : : . . ~: - . - .. :
- : . . .: , .: . . , -. . :
~: , - - : .
. ~
.. . . , .. ... .- - ~ : .
- . ,., : . .
.. . . ... . . . . ..
c:~icl~.iL:Ier:l wi.lh a f~ war(-l:ly p1.:l.jrc:ti.r1SItonclu-* C:,:Fe~;terlc:li.nt-lirlt~ Qc~.ly75
lr l::.m i.t~-. t? a5e~ Wr,en c-~ F1.::u:ket 4(.1 c:c,nta:i.ni.rlg a ple--sel r!cted ~bject
i5 p..lc..i.tic:,nec:l t:~y tt,e turntable .:.6 in fr..,nt c.,f the slc~-t 187 the
t..nc~ e 5~ ,f l;he pc.,cket ~FC) a-ltc~mc.~tically c~mes i.ntrl reSIister
bet;ween the jaws 5~ ,f the r.lripping elemerlt 4~ The pivclti.ncl shaft
~:18 i.n tl-,en pi.vc:ltc?cl 3l:~ clec~reec; acc:c:,rclirl L~ t~ arrc:~w 57 c.~7f fislul~e F.~a
by tt,e mc~t,:,r S.)f.l~ lJpcl r, r,::,tati,-,n ,::,f th F.~ 5 haft 4~-3~ the :Lr,wer gr.ipping
jaw 56 c,f the 5IrippirlSI element abuts aSIainst the tc.ncllle 54 .-.f the
pre-seLectecl p,.,cket 4C) which piv,-,ts ar,-Juncl the supp,-lrti.nsl rins7 3
accr,rcling t,-, arr,-,w 5~3
Unce in its fully pivc,ted p~-,sitir~n, i.llustratecl in figure 8a~
the pr~cket ~C1 partically prc.trllcles tt,r"ugh tt,e sl"t 18 wit,h i.tC; t,-,p
c,perlinSI 4L facing t,-~warcJc; the user, thus allc~wi.nsl access by the
user tc, the cc.lntentl-lf the p~.~cket 41:~ The p,-~cket 4C) is piv,-,ted back
tcl its clrigi.nal pclsiticln illustrated in ficlure 8 by a 3C~ clegrees
reverse rc~tatic~rl c.,f trhe pivCItinCJ shaft 48.
Ar) indexinEI rc~cl 58 is fi.xecl tcl the frc,nt surface clf each di5c
40~ The indexinEIrc,ds 58 are adapted t,-,wc~rk jc,intly with a sensincl
devi.ce ~uch an infra-red sensc,r 60~ The sensinEI device allc,ws the
electrclnic c,~,ntrr.~ls linl:ed tcl the c4mputer terminal 14 tc~ keep
track~r.f which pc.cket ~C~ is pc.sitir~ned in fr..nt c~f the slc.t 18.
The çlripping element 46 has a slc~t 6f-~ adapted tc, receive the
piv4ting shaft 48~ The clrippincl element ~i6 is fi~ed tc,the pivc~ting
shaft 48 by a screw 6~ which allc~ws easy manual aliclnment c,f the
Elripping element with the tc~nEIues 54 c~f the pockets 40~
Fi.c~tres 3, '3a, lC~, 11 and 1f~ illustrate an alternative
emb~diment c~f the ejection mechanism 44~
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Ac.; i.l~ ra t~.? r:l ir~ fi.gur e 1.~ f cthi.~, emt:~ c:li.ment, th F.:.~ p,::,cl:ets
.1~ have hl:l~ W grippi.ncl-~cl.-~F:~t~::lr 6f... e~,;tencli.rlJ inteclra:L:Ly fr--.,rm them~
frc,nt ~.,urfinr:e f~ at; aF~pr~::,.~,;imately micl-heiclht,~ The gri.ppi.nc~ ada.pt,-,r
f~fj cle~Ci.nes an hclllllw c:hanne:l. 7C~ ancl a dc~nwardly e~tendincl guidi.ng
fingr.!r 7~..
r;leferri.ng t,::, figllres j anc:l -Ja~ 1;here i.~; s~lc.lwrl a pi.v,-,ti.ncl r,::,c:l
74 r,:,tatat:lly ].inkr?c:l by a ~:,et ,::,f recluc:tion gearl.; 7f, tl..l a reversable
~;tep mct,::,r 7~3 n Arl anchc:lring c"mponent 8CJ is m,-,untedl-ln the pi~vcltirlcl
rc,cl 74~ ~rhe an~:t"::,rir-,g c,.,mpl.lnent ~3C) has an anch,,ri.nq tonglle ~ ans
an ahutment torlclue 8c~ Si.nc:e the pivc~tincl r"ci 7c;. is pc,siti"ned
substantictlly l,.,wer thc-tn the supporti.ng ring 3~:~, as the pivoti.ncl
rc~d 74 is pivoted by the mr.~tor 7~ accc,rcling t,-,c-trr,:,ws 86 c,f figure
3a, the anchl-lrirlLI tclnylle ~3~ describes an arc whlch pushes it
thr"ugh the hl...llll-lw channel 7C~ thus securing itself to the pocket
41~ befr.,re pivc~ting it gC) degrees around the supp4rting ring 3c,t as
illustrc-tted in figllre ~3a. The abutment tongue ~34 i5 prr,vided with
rksilient ahutment disc ~ adapted to abut ctgair7st the e~terior
surfc-~tLe of the aclctF)tr/r 66 stabilizing the pocket 4C~ when it is
pivr.,ted bc-tck to its c,riginc-tl positirlrl r.,f figure g.
FicJures 3, ~3a c-tnd 1~ alsc, illustrate an alternative tc, the
methc,d c,f fi~atic,n of the suppc~rtinq ring 34 t" the turntable ~6.
As: carl be seen mc,re specifically in ficiure 1~), The ring 34 i5
cclrrtin!~ous and is kept in a peripherally spacecl relationship with
the turntable ~6 hy a flat C~trip of material g4 welded tc, the rinq
34 and b,-/lted to the turntable ~ by a joining element ~3~.
~ ~ .
Figures 13J 13a, 14 and 15 illustrate yet anc.ther embodiment
of :the ejection mechanism 44. The type cf p~ ket 40" illustrated
:~ :
: .. . .. : - .. .. : -........ .
: . : . , .
. . : . , ~ .. , , . ... .. :
. . . : : . : :
.. . .- .. ... .
: : , .: : . - : :
.
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- :. . .
, : . . -, ~, :. ~ . . :'' . :
.. :: ~ . -: . -
. . .: , .-, : . , ~ . . : ::
. : . : : ~ : - : . . . :
20717~1
ln ii.CIUre 1.7 Il~;f.:.`d W1 th th i~i F.:~mL~ C:l:.l ment hav~:. ..~n~:~F:Ierlincl41 c.~t their
f Irl.~l r~ t f.~1 ICi i. r~5t f.:~ f rl t th(.-.~ tclFi r:l5 Wr.:lCi thP C~ if.:~ Wi. trh trle p~r evi.c:u r:;
emtlCI(-.I i.mf.~ nt-.
As i.l]n~e..trated in figureci i3 anc.l:l~3a, the pr~ckete. 4l:) c~re nl.t
pi.YC:~f;eCi but rather tranc;latecl thrr.ugh the cilc.lt 18~ The p ck:ets 4(:~
h-lve r..l ]. SC:I r.:~ r,-:::k: li.k:e member .J8 e~tenclinc3 :i.nte-3rally frcm thei.r
L:~ack wcl:Llc; lC~ ~Ihe turntable lC~ is annl..llar i.n C;r,ape, the ci:i.stance
bel;ween the i.nner .nd cluter raclil..~c; -..f the turntable being
6ubstantieally equal tc. the si~e .f the pc.ck:et 4C~ .
~rhe suppr.rtinflrirlg .-.f the previ.-.us embclcJiment is replacecl in
this emb.-.dimer~t by an inner annular wall lC)~ fi~eci inside the inner
radius ..f the turntable lC3~ tcl the base rt;- by cicrews lC~ The
ejerti..n mechanism which is pc.sitic.ned inside the annulelr wall 10
cc.lmprises a hrr,k: hapeci transleatinLl tc.nc~ue lC~8 cili.cii.ngly mr..untecd
c:,n an endless screw 110 and a glliLIe rcd 11~ l~r,e endless sLrew is
mechanically cc~upled tc- a step mcltc.r 114~ The translatinc~ t--.nclue
108 is adapteLd tc. translate accc,rLli.nLl tc, arrclw6 116 0~ fiL~ure 13a
thrc,uc~h an aperture 118 prc~vided in the annular wall lC)4 and
illustrateLI mc.~re speLifically in fiLlure 15.
The cc.nficJuratic~n l~f the hc~c.~l-like member ~8 clf the pcckets
4C)" and c,f the hclok shaped treanslating tc.,ngue lC)8 being
clmplementary as seen in fiLlures 13 e~nd 13a, the pcckets are
allc.weci to rc,tate,::,n the turntable lC)r~ withc.ut any cbstruLticln~ The
annular wall 1C~4 is adapted tc, wcrk in t.lnjuncticn with the hclclk
like member ~8 tc, prevent the centrifugal fc.rce frc.m pullinLl the
pc/ckets tc.ward the periphery clf the turntable lC)~
: When the pre-selected pccket ~0' is pc.sitic.ned in frc.nt clf the
,
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~ . ~
'
,,,, ,. : ~ . - . . :. . .
' , : .'' ' ', ':, ~
:: : :. : .
.
20717~1
t .~ y tllf~ .tl:::~ c:l~ tf..~ r~ t~ 3 t~ r~C.i~ ii.r~cl tr~r~ P 1~:)3
~; thrf? c~rledly m~:~vr.!c:l a:Lc:,rlcl the enl::l:le~:;t; ;c:rf~w :L:LC~ tt"..lt; pl.lcihi.ncl the
pl-:lcl f~t 41:)" partially c.~c:r 1..l5Ci the c; :Lr::~t t~l a~c; 5 een in fi.qllre l~a anci
When the m:~t...r l:L4 r~3tateCJ the sc:rew ll;:~in thel::lther r:~tatinc
d inr ecticn, C.;ince the c:c.mpc.nents 7~3 ar~ 3 are bc:lth t"::~}:.k c.;hapedy
trhe trc-~nt..~lt-~ti.nsl t,.ncll.le lC)~:3 pullt~ back the pc~cket 4~:1" t,: i t 5
,-,rigint:ll p.::lt~i.ti...rl at; i.llustrated in fi.s~ re 13~
Sinc:e n..l pi.vl::,ting ac:ti..-ln is i.nv;-.lved, wi.tl-, tr,i.s emb-::.climenty
the actual heiyr,t ..,f the stc:,rasle unit 1;:~ can be grec-.~tly redured~
As illustrc-.~ted in fi.c.lure 1~3, the stc.racle unitC; lC) cc~n be stacked
up ,-.ne .-,n t.-.p ..,f the c~ther whenever c.lreater stc.raye capt3city in
recluirec:l. When vertically stac.k:ecl up, the units lC) are
electr,-.nict-~lly li.nked tc r~ne arl.-ther hy a set .-.f cable 116. The
cab].es carry infc.rmatic.n as t.-. the p.-lsiticr7ninsl .-.f a specific
pr-lc~;et ~C1 tr t~,e r.mputer termlnal 14 and carry the apprc-pri.3te
cperative cr.:.mme~nds t--. the turntable 16 ancl r-~jectic.n mechanism 44
r.f a c~iv~3n unit lC1~
The cc3bles 116 w4rk in series and jc.ined respsctively the
..utlet sc.cket li8 and the inlet sc.cket l~C1 ..f tWCI adjacently
~uperpr.sed units 10.
A5 can be seen in fic-lure 1~ 16 and 17y the pc.cketc; 4C1, 4C) and
4:~" each have a pair ~f side walls 1~ which taper inwardly t4warcls
central vertic~31 a~is c.f the unit 10~ This cclnfi.c~ure~tic~n all~ws
smaller hut thih:er panel-shaped.-.bjects suchl3s cr.nventic.ne~
fl.-.ppy discs tc. be squee~ed between the wal 15 1~ in the tapered
~ectlon and larcler but narrc.wer c.bjects such as S 1/4 f14ppy disc
,
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t1:l be l~ L:I.y e r,c~ ;e~ ir~ide t~,e p,..c:~;ecY
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