.• 

In re application ot 

"•• J'. Prieddla" e.nd. 

hank B. ~owlett• 

ler1al •o. 36,161, 

liled Aug. 19• 19SO, 

REF ID:A67810 

S,•t .. tor land.Gll.l•f.llS ti. ltelatiom 

Of 11-.torloal c1raus.ta. 

lire 

' 

June .a, 1936. 

d•a1red to incorporate acldttloaal clallul .. follow• 1 

18e .l MOball1• of the U&raoter Uec·rl'94 COllfri.Plnc & 

1et ot IWltob:lnr d•Yl•• »ro"f14ed with ••bl• eon.tact• tor 1ataUl111flW , including slipping friction drive elements' 

1n.t11'111 ttent ci:rn:.U oonnectlon• 1 and •ean.!/t•r "flLeylJC t:be rate of ao'f'e• 

•nt of Rid deYice• tn rewpect "to the. '\1• la'\enal betw•• tbe nace1atw 

.,.ratloa• of a11J g1Yea otrcult • 

.nlatlw rate ot •IP 11 d of ..S4 •m.JO•-'• independentlJ' snil 41tfel'mS.tlaUI' 

' te ....... u.. 1Jltenal ....... •ll'01l1t ~tnlllng aperatioa or -

· Ii"• etrcralt. 

@'pp roved for Release by NSA on 09-05-2013 pursuantto E .0. 1352a 
,/ 

• REF ID:A6781 • 

2J., • r·•ltCC.irtp "ltcban11111 compriel.rJB' relnt1Ycly mo.,<le 

ooaponent•• proYldd with eltatrical oon,ao'\1 tor ••tabU.shing intermlttent eircult COIDltc~1 0111 ; •aae tor •171111' •aid connaction•, 1nE:lip-disk ' 

cl uding 41tterentl&!fdri"flng .... ,.n•• opera~• wUh each ot e~td com-

-ponent1 for randoahlng the inter-.als of time beheen e•1ceea11w operatione o! an) ff Ten oireutt. 

21. A swit~alng ~ecluultlll'l ceapr1Pinig relat1Yel1 mo"f&bl• 

coapoaente, pro'Vldecl with o'J)er&tl't'8lJ a1aoeiated "lton-tac" element•. DJUt 

an.v 

of e!\it c-Ol'\;>onente ha.vir.e 1 t• •l•mente arranred 1.!/axramtn OJ'der ; Rad 

aeana tor ~oving •~ld coraponent• relatl'18 to each other wnerebz ibe 

' ' time lntenal iatwtan the openi.Dg and cloa1ng operation Qt 811¥ ghea 

circuit ii w.rle4 aperio4lcAlq. 

22. A •ltchlng meohan11m e-.,r1atng rot~table aomponeate, 

eaoJi pr Tided with oparati~ei, rel~ted. aoRt•ct el..,nt~, and ona ot eal4 

fortuitous 

campo••t• h&-Y!ng 1 t• con'\act •l•ats eleetr1eal11 oOBDeoted. in ,!/xawt• I 

order; and meant tor •r71nc the "latiw n't• of llO'Naell't ot •&14 c--

,1po.,.te ' tor 1ntel'111tteat17 ad aper1oclloal1J' etteo,lng the opel'atln of 

&IQ' -1"19ll circuit. 

aa. In a ••llan1e of the character de1cr1bed. oomplemental 

each 

.. 1'8b111{l' deYlce,!/pro~ld•d wl'tb al~ctrlcal contaots. one or aa14 4eT1e•• 

' I ' / ba'fln« it• ooni111.cts 11peoe4 at irregular lat.ernl• with reepeat to each other 1 and electrically interrelated 

_}:tor eata"91lthl~ a plV1'll1t7 ot olreu1t oomi..t1ou1 and mo.au tar in4epm- · 

I ~ whereby the conU:.cts ure caused 

4a.'\l7'811d 41tf'erenU&llJ o;eratlng aald 4eT1ce.!f'lo ettact elreult co .. ot.Sou 1 

- \' 

a 

',, 
REF rn:Jt1e10 

• • 

·. 

An iapo-r\fUl\ o\Jeo1i of th1• in"feat1CUL ls to pron4• & ..... 

of eelectiJtg troa a plua11t1 ot a•ilall• al.ecvtoal oirou1t• a •Sncl• 

o1TOU1i at l"Nl4ml. •h10h•1ll lMI operatlTe to~ a period of time. \ha 

lagtll ot the intenal depending upoa the Y&riabla ta.ctors Reh a• iattoduecl b1 tbe aeclMml• at the 'PMaent -1.n:ten.tion. fte cl&bte pre*81ltl4 

at th1• '\1'!le hnYa 'beea 4~a.ftP4 •lth a. •1• to datinlng thle ~ept and. 

are n.bal tud to i:hc end tha.t they 11q lle cona 1den4 bJ th• F.x•iner a' 

tb• ·u.• -t:hts case ia tftken up tor reeonddemtion ln ecmneetSoa wtth ti.e 

w.. 1. lried.ua ancl 

!rank I. altrle\t