US1300564A - Toy aeroplane. - Google Patents

Description

EJBUESATH.

TOY AEROPLANE. APPLICATION FILED DEC.23. 191a 1,300,564. Patented 'Apr. 15, 1919.

2 SHEETS-SHEET 2- 1 INVENTOR. [fin/57 491/584 776 4 A TTORNEYS;

ERNEST nmnsa'rn, ro'e'rtann, oianeorr, assrenon or ONErHALF r0 GEORGE W- 10E 'WZETT, 8h PORTLAND, OBEGQN.

rot" AERGPLAIIE.

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Application filed heseraher through a series of graceful evolutions in mid air.

The objects of my invention are, to amuse children and to show them the effects of air on light bodies of certain shapes.

I attain these objects by the mechanism illustrated in the accompanying d rawings in which- Figure I is a plan view of the entire ma chine; H, a side view; Fig. till a front view; Fig. IV, on a larger scale, a section through the releasing i'nechanism for the elevation plane taken along the line in Fig. 1;and Fig. V is a slight modification of Fig. IV.

Similar numerals refer to similar parts throughout the several views.

My aeroplane resembles in miniature somewhat the type con'nnonly known as the Pfeil i'nonoplane. It has a lengthy body portion called fuselage 1 and, attached to the latter at about the center oi gra l y, tl main supporting plane At the tar end We see the tail plane 3 and. hinged to it at 4, the elevation plane 5. (in top of the tail plane is the vertical fin (l. and on top of the elevation plane the tin 7. A tension member 8, preferably a rubber band, at the upper edge ol the fins will hold the elevation plane 5 at an angle to the "fuselage, as shown by the dotted lines 5 in Fin". ll. T he angularity is predetermined by the stops 9.

The chassis near the head end is represented by the downwardly and laterally extending legs 10 with the brace rods 11 in side View, the arched brace 12 in trout View, and the wheels 13.

Underneath the fuselage is the propeller rod 14, held slidably at the tail end in the bearing 15, and mounted screwably at the head end in a downward extension 1 8 of the fuselage. A propeller 1*. is firmly attached to the forward end at the propeller rod 14'. It may here be pointed out that, adja- Specification of Letters Zlatent.

Patented Apr. 15;, 1919;. 191s. Seria.1No.268,020.

cent to the propeller, a portion of the thread on the rod 14; has been cut away; the length of the gap 18 to correspond with the length of the fen'ialo thread in Which the rod is mounted. The result of this is, that the propeller 17 in revolving will shift the rod.

in axial direction throughout the whole length of the thread on the rod, but having arrived at the gap 18, the shifting ceases while the propeller is free to revolve unhindered.

The tail end of the propeller rod 14 operates the releasing mechanism or the elevation plane. In Fig. IV this releasing mechanism is illustrated in detail. Attached to the fuselage are the hangers 19, and pivoted.

between them at 20 is the bell crank 21. The upright member of the bell crank is limited in its movements by thenears 22 at the upper part of the hangers extending into the path of said member. leg of the nose 23, and latter engages a tongue 24 which extends "from the elevation plane 5 downwardly through a slot 25 in the fuselage. Thus a. pressure of the propeller rod against the upright member of the bell crank will release the tongue and set tl1e.eleva tion plane.

A. slight modification of the releasing mechanism is shown in Fi. V Where the tongue 24 is stamped out of the elevation plane I) and adapted to rest in the set position with its lower edge 26 against the fuselage. In this variation the stops 9 referred to in Figs. I and II may be omitted.

A suitable hook 27, depending from the fuselage near the chassis, serves to attach the rubber sling 28.

To operate the aeroplane. the nropellerl'? is turned. manually counter clockwise as fa r The horizontal bell crank carries at its end a as the threads on the propeller rod 14 will permit, and left. with the propeller blades extending horizontally. The rubber sling 28 is slipped over the book 27, the operator takes the handle :29 of the rubber sling; into his right hand 30, and with the left hand 31 he takes-hold of the extension 32 to the fuselage at the tail end. The aeroplane is 'nowprojected into space. The air resistance will set the propeller in motion and the propeller rod will be screwed back until the bell crank releases the elevation lan.

Due to the setting of the elevation plane. the eourse ot' the toy will he changed from a trajm-tory to a vertieal loop antl these loops will eontinue so long as the propelling momentum is greater than the toree. of gravity. lmt at last gravity hegins to assert itself amt the marhine will lloat in the air, sometimes (leseemling in a hallistie curve hut more frequently (leserihing large eireles like an eagle who is eyeing its prey. till the ever lowering movements are interruptetl hy the earth. ()t e i'irse. all these movements are apt to 'variations hrought about, by the wind or h aeeitlenta'l or intentional huekling or warping ot' the planes.

Any suitahle material may he employetl in the manut'aeture of my maehine. hut it' the fuselage aiul the main supporting plane he made of very light. metal. it is lesirahle that the reintoreing ritlges 33) he lttlllpttl or emhossetl at the proper plaees. in or ler to prevent hueltling aml eo'nsequently ill tunetioning of my apparatus.

Having t'ully tles rihetl my invention it will he seenthat my ohjeetshave heen aeeon plishetl. an l though 1 have shown the preferred form of eonstruetion. I, reserve to myself the. right to malte minor ehanges in this maehine. providing l (lo not violate tl. spirit. amt prineiple of my elaims;

I claim:

'1, in a toy aeroplane. the eonihination ot' a .t'uselage, a main supporting plane above the eenter ol gravity of the fuselage, a tail plane, an elevation plane :ltljttt'ttlt to the tail plane, \iertieal tins on top of tail amt elevation plane. means for operating the ele \"ation plane in mitl air. an l means tor-pro- .jeetiing the aeroplane into spat-e.

2. In a toy aeroplane. the eomhination ot' a. fuselage, a main sup orting plane ahove the renter ol gravity ol' the 't'uselage. a tail plane.- an elevation plane ,tttltttllttl to the tail plane, vertieal tins on top o't'tail aml elevation plane. a ehassis at the heail erul of the l'uselage. means to operate the elevation plane (luring the llight. aml means to projeet the aeroplane into spaee.

3. la a toy aeroplane. the eomhination of a t'uselage. a main supporting plane extemling laterally from the fuselage ahove its eenter ot' gravity. a'tail plane. an elevation plane hinged to the tail plane. vertieal tins on top ol' tail amt elevation plane. a tension memher between tail atnl elevation plane. a. wheel earrying ehassis at the llttttl eml ot the fuselage. means to operate the elevation plane (luring the flight. aml means to projeet the aeroplane int'o spat-e. I

4-. In a toy aeroplane. the eomhinati't-m ot a fuselage. a main supporting plane. a tail plane. an elevationplane. vertieal tins on top ot' tail aiul elevation plane. stops ab taeljie l to the tail plane to ltOltl the elevation plane at an angle to the fuselage. a tension lnemher hetween tail aml elevation plane. a tongue extending (lUWllWilItl from the elevze tion plane through the t'uselage. a hell eranlt :ulaptetl to engage saitl tongue, means to re-- lease saitl elevation plane in mitl air. ttlltl means to projeet the aeroplane into spat-e.

In a toy aeroplane. the. eomhination ot a. l'uselage, a main supporting plane. a tail plane, an elevation plane. vertieal tins on top o'l' tail aml elevation plane. a tension memher hetween tail an l ele 'ation plane. a tongue extending downward from the elevation plane. a hell ('l'tlllh umlerneath the 'l'uselage to l\()l(l saitl' tongue. a threailetl propeller rotl uiulerneath the fu elage atlaptetl to'l'elease in ltlltl air saitl tongue l'rom the hell eranlt. a propeller npel'tllttl' hy the resistanee ol the air aml aetuating the propeller rotl. amt means to projeet the aeroplane into spaee.

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