US1779524A - Helicopter - Google Patents

Description

I-I (Fig. 2) denotes tho axiS on which the lneS ()1' bladeS aTe t111'ne(1. ThiS iS ef fected fro1I1 the )i1ot,s soaf by a Suitable tronSn1ission geor, fo1 instance rodS, cb1eS, of the liko. 1he lanoS 01' blodeS are turned, of courSe, in the )oSit1ve (lirection, in vhCh they oct 1ifting.

1JriVing the helico )tor horiZontnHy is of' fecte(1 by t11e ro e11er Which iS driven by the InoUor o by IneanS of tho Shft (1011- tI'o11ing this o oller is oifeCted l) tUTning it on the axi IIII (ig 1) Which ny be eected fron1 the pi1ot,S Soat by ony Suitoble knovn trnSIniSSion gear.

hen the Inochine iS to deScend, rSt the Inotor is StopPed, the couPling o iS uncou- 1)led, ond then the )1aneS 01' bladeS o re adjnSted fof negative oCtion. fho Inachino is nov descending or Sinking reSpective1y, but aS the b13deS o o are SUbiected to the counter-acting I)reSSllre of tho ai1 they aro I'otot-ed by the oir nd vith the1n alSo the gyratory nlaSS (Z iS fotated, the direction of this rotation being Counter to t11e direction of fototion of the blodeS So that certin aInount of kinetio energy iS aCounlnlated in said Inass, The oInount of thiS energy de- 1)endS u on the velooity of tho doTvnTvafd n1ovenlent of the IIlachine. T he greter the negative (ang1e of) )itc11, the largeI iS the aInount of the kiIletio energy Stored in the gyratofy IIlaSS. ShoTtly )rior to the 1anding, the blodeS o o aTe gain odiuSted to the poSi tive (onglo of) pitch in vhioh t11ey retafd the dovvnvvard Inovement of the machine until it becoIneS zefo, the bladeS being fototed during thiS time by the energy Stored in the rotating IT11sS of. 1So the ro eller Zo con be Totted dufing thaf time by the mSS (Z, in tht the Shaft 6 (the cou ling o being unco11 Pled at this tiIne) iS couPled by the co11P1ing Z) Tvith the Propener Zo.

I olaiIn= 1. A helico ter, coIn riSing, in co1nbination ith the Car, the Inotor therein, the driv ing ro eHer, and the IIleans for transIIlitting the owe1 to it, lifting ropeHer, tho blodeS of vhich aro ada ted to aCt like su pofting planeS, f1yn1aSS gyfoting in a pln arallel to the )lane of n1otion of said lift ing ro e11er, o gearing by vhich this prooller and said InSS are continna11y con Ifoote(1 vvith one Lnother in rotation, 111enS fof tranSInitting ovef froII1 Said II1otoI' to the Said f1y-InaSS and, by the mediun1 of Said gering, to the Said 1iffing ro eHer; and ad ooupling so orranged aS to perInit (1iScon necting the f1yII1oSS and the lifting )ro ellet ffom the motor.

2. helico ter, CoIn riSing, in coInbina tion vith the car, the n1otor therein, the driv ing To eHer, and the IIleanS for tranSInit ting the )over to it, L 1ifting pro eller, the bladeS of Tvhich aIe adaPted to act like SuP ofting p1neS, y-InaSS gyrating in lano )L111el to the lane of Inotion of Said 1iff- 1ng PropeHer, a gearing by Tvhich thiS ropeller and Sid InaSS are continually con- 1]ected vit1 one another in rotation, IneonS for tronSm1tting OWer from Said motor to the o1C1 f1y-InaSS nd, by the medium of Soi(1 geT1og, to the Soid lifting rope11er; and al ooH hng So arranged oS to )erInit diSoonneCt lng the f1y-InaSS and the (1I'iving propener froII1 the Inotor.

3. 11e1ico )ter, con1 riSing, in coInbinflon vvlth the cor, the Inotor therein, the driv 1 1g fo eHer, nd the nleonS for tronSInit tlng the power to it, 1ifting ro ener, the blados of vh1oh ore ada ted to act li1(e sI1P portlng )1aneS, o fl -InaSS gyroting in 9 p1ne araHel to the )1ne of Inotion of said lifting I)fo )e11eI', gering by vvhich thiS )ro )e11e1' and Sald lIlaSS are continu11y conneCted With ooe onother in rottion, Ineans for tranS- Inlttlng )over froIn Soid Inotor to the Said fi InaSS and, by the IIle(1i11II1 of Said gearing, to the said 1ifting pro ener; and cOu)1ing So Trnged as to I)efII1it (1isconnecting the ny-maSS and the driving ropener from the n1otor vvit11out interru ting the )ovvercon ductlng connection betvveen thiS pro eHer ond the sai(1 0y-nlaSS, aS We11 aS the lifting rope11er, Substantially and foI the ufpoSe aS Sefl fofth.

In testin1ony vvhereof I hve aHixed Tny Signature.

ENGBLBEBT ZASoHIA

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