US2484468A - Jet-propelled airplane toy - Google Patents

Description

Oct. 11, 1949. T. A. SCHAAD JET PROPELLED AIRPLANE TOY Filed April 19, 1946 3 Sheets-Sheet l Oct. 11, 1949. T. A. SCHAAD JET PROPELLED AIRPLANE TOY 3 Shee'ts-Sheet 2 Filed April 10. 1946 wrewraxe 795000/25 A. SCf/A 0f 1 ATTOP/VE Y Oct. 11, 1949. T. A. SCHAAD 2,484,468

' JET PROPELLED AIRPLANE TOY 3 Sheets-Sheet 3 Filed April 10, 1946 I MkM Op 795000/25 ,4. SZWAAD ATTO/Q/VE Y Patented Oct. 11, 1949 UNITED STATE s PATENT OFFICE JET-PROPELLED AIRPLANE T Theodore A. Sehaad, Detroit, Mich. Application April 10, 1946, Serial No. 661,132

Claims.

This invention relates to toys and in particular to jet propelled airplane toys.

The primary objects of the present invention are to provide a toy which employs miniature airplanes driven by the reaction of a jet of gas, preferably air, which simulates the sound of jet airplanes in flight, which demonstrates the propulsion of jet airplanes, in which the miniature jet propelled airplanes may take off and land, and which provides simultaneously combined educational and recreational features.

For the purpose of illustrating the invention, two of many possible embodiments thereof are disclosed herein. While these two embodiments employ many of the desirable features of a. unitary toy such as including air compressing means and a reservoir for compressed air, it is recognized that many other convenient means for providing compressed air or a flow of air under pressure for operating toysembodying the inven tion may be employed."

. With the foregoing in view, other objects of the invention will become apparent by reference to the following detailed description taken in connection with the accompanying drawings, in which: i Fig. 1 is an elevational view of a jet propelled airplane toy embodying the invention with portions thereof shown in section to illustrate the construction more clearly.

Fig. 2 is an enlarged fragmentary vertical sectional view at the top of the toy showing in considerable detail a preferred construction of the rotating hub and valving means employed through which air under pressure is supplied to miniature jet airplane. i

Fig. 3 is an enlarged fragmentary vertical sectional view at the bottom of the toy showing the valve means employed between the air pumping means and the rubber bladder and the sealing means employed between the bladder, the spherical housing and the base.

Fig 4 is a top plan view of the embodiment of the jet propelled airplane toy disclosed in Fig. 1.

Fig. 5 is a fragmentary horizontal sectional view taken on the line 5-5 of Fig. 2.

Fig. 6 is a side elevational view of a miniature airplane preferably employed with the invention, portions thereof being broken away to indicate how the jet tubes and jet airplane sound simulating means are incorporated thereinto.

Fig. '7 is an elevational view of another embodiment of the invention with portions thereof shown in section to illustrate the construction more clearly.

Fig. 8 is an enlarged fragmentary vertical sectional view of the top of the embodiment of the invention disclosed in Fig, 7 showing in considerable detail the rotating hub and valve means preferably employed.

Fig. 9 is an enlarged fragmentary vertical sectional view of a portion of the bottom and base of the embodiment of the invention disclosed in Fi '7.

Referring now to the drawings, wherein like numerals refer to like and corresponding parts throughout the several views, the illustrative embodiment of the invention disclosed in Figs. 1-6 inclusive comprises a circular base l0 upon which a spherical housing H is mounted as hereinafter described in detail, a bladder l2 within the said housing I I, a pump l3 within the said bladder l2 adapted to inflate the said blad-- der and create air pressure therewithin, a pair of outwardly disposed tubular arms l4 rotatably' mounted on said housing ll, communicating passages between said bladder l2 and saidtubular arms 14 through which air under pressure from saidbladder 12 may pass, valve means It controlling the passage of air from saidbladder 1 12 to said tubular arms I4, flexible tubing l1 connected to and depending from the outer ends of said tubular arms l4, jet propelledminiature airplanes 18 connected to and depending from the said flexible tubing I! which rotate the said tubular arms l4 when air under pressure is permitted to pass from the jet airplanes l8, and either or both of the jet airplane sound simulating means l9 and I carried by said miniature jet airplane IS. The said rotation of the tubular arms l4 causes the flexible tubing I! to assume the position indicated by the dot and dash lnes I'll] in 'Fig. 1 whereby the miniature jet propelled airplanes l8 take off andfly around the said spherical housing H which is preferably provided with a map of the globe thereover.

The said spherical housing I l preferably formed of metal and is provided with diametrically opposite circular apertures 20 and 2| in the top and bottom thereof respectively. The top of thecylinder 22 of the pump I3 is provided with a cap 23 formed to include aguide 24 through which thepump rod 25 reciprocates. Anoperating handle 26 is threaded onto the top of the saidpump rod 25 by means of which the pump piston 21 fixed onto the bottom of thepump rod 25 is manually reciproated to fill the bladder l2. The centrally 24 of the pump cap disposed tubular guide bladder l2 through the said centrally disposed tubular 23 and thepump rod 25 ex-- tend upwardly through the aperture 20 in the top of the spherical housing I I preferably in the manner hereinafter more fully described in detail,

depending lip 32 which serves as a seal against the inner cylindrical surface of the pump cylinder. 22 during the down or pumping stroke of the pump piston 21-. A; painof; thinrubber flapper valves 33 secured of the pumpoylinder 2'2.just abovepump outlet ports; 34-. by means of rivets 3,5 permitair forced from the pump l3 to enter the bladder I2; and prevent compressed:- air within the bladder I2 to escape; back intothe-said pump It; When the bladder I2- is infiatedit assumes aeposition against the inside surface of the spherical housing is! Arc inculan pumpbottommember 35 ispref'erably brazed into the. bottom of thepump cylinder 22 and. issecured to, the base ID by asuitable tom member 36 isformed to: provide an: annular beveled: bearing area: 38 which clamps down on lower annular periphery I26 of the bladder I 2 and an annular gasket tfi located. in the-lower aperture 2I. through, the; spherical housing II Whichengages the-lower annular periphery I I d of the spherical housing I:I; all insuch a manner as to. secure the pump I3-, the bladder" jacent the-annular periphery Must/hereof between: the-said annular gasket39iand the bearing area. 38 of-thesaid hump.bottom member 35;.

2 5,0, and.-2 5.1 through which .air issupplied into thepump cylinder 22 above the piston 23? from whence. it passesbelow the saidlpistonil during the"up stroke of the said'piston as hereinbeioredescribed indetail.

simultaneously secures. the: upper portion of the bladder I2- adjacent the up per annularperiphery I200- thereof betweenithesaid washers 4-1.- and. 42-. and theupper. annular periphery of, the-sphericalhousing It between.

i saidwashers 42 and 43. An telescoped in rotatable relationship over thethin chase 46 into andthroughthe said'oppositely disposed radially extending tubular arms It. A pair of oppositely disposed apertures orports 48 are proyidecllthroug-h the thin upper end of the said invertedshouldered sleeve 40 which provide air thereof around the said-sleeve4-B.

The valve member I5 comprises a headedvalve sleeve 5I telescoped-over the tubular guide 24011 the pump cap 23.- and intothetop of the sleeve 0. with the bottom ofthehead 52 thereof dis.- posed against the upperannular end 49 of-the saidslightly, below theports 48 from within thebladder I2 may pass up the inside of: the; sleeve-.49, through the ports. 48, into thechase 36 of thehub 45, through the tubular arms compression of the spr1ng54 until the bottom end of the valve sleeve 5'I passes the bottom of theports 48. inthesleeve member 40 whereupon air pressure in the bladder I2 abovethat permitted by the saidcompression spring 54 is-prevented. Thus,.the--valve member IIiserves both as an on. and off valveand asafety valve.

depending flexible tube I'I; see Flg; 6. A suitable whistle tubeIQ located .in the empennage of the airplane I8 adjacentthe free-end of thejet. tube-56 is preferably employed to simulatathesound of. actual jet propelled air:- planes: in-flight. As; an alternate or auxiliary'to the whistletube- I 9 usedfor simulating the sound ofialjet propelled airplane in-flight, the sound :sim.-- ulating means I90 may be employed. Thisqsound ment of the invention .-acircular base 68 upon which a spherical housing 6! which serves as a compressed air chamber is by to engage an annular washer said air valve 15 which support the same above the saidsleeve 19 to which vibrates and causes an extremely high pitch as the said jet airplanes l8 rotate around thehousing H. r 1

Referring now to Figs. 1, 8 and 9, the embodidisclosed therein comprises mounted, anair supply connection 82 to said housing Bl, a pair of outwardly disposedtubular arms 63 rotatably mounted on saidhousing 81, communicating passages between said housing 6i and saidtubular arms 83 through which air under pressure from said housing 6| may pass, valve means 84 controlling the passages of air from said housing 8| to saidtubular arms 63, flexible tubing 85 connected to and depending from the outer ends of saidtubular arms 63, jet propelledminiature airplanes 18 connected to and depending from the saidflexible tubing 65 which rotate the saidtubular arms 83 when air under pressure is permitted to pass therethrough from said housing. Either or both of the jet airplane sound simulating means 19 and I80 is preferably employed as hereinafter described in detail in connection with the said miniature jet airplanes l8 to provide realistic sound to the toy during flights of the said miniature airplanes l8. The rotation oi thetubular arms 63 causes the flexible tubing 85 to assume the position indicated by the dot and dashlines 650 in Fig. '7 whereby the miniature jet airplanes l8 take off and fly around the said spherical housing 5| which is preferably provided with a map of the globe thereover. The said housing BI is preferably secured to thecircular base 88 by means of astud 68 disposed through anaperture 81 in the center of the saidbase 88 and threaded into and through ananchorage disc 68 having its lower outer periphery beveled at 69 as best shown in Fig. 9 where- 10 disposed in the aperture ll formed in the bottom of the saidhousing 61. The tightening of thestud 66 simultaneously secures the housing 6| to thebase 68 and hermetically seals the joint between the housing SI and theanchorage disc 68. Thestud 68 is provided with anaxial bore 12 from its threaded end 668 disposed within the said housing 8| into its head communicating with a threaded radial bore 13 therein which receives the inner threaded end oftubing 14 having a suitable air valve 15 threaded on the outer end is suitably threaded at 18 to permit connection to air supply means such as a pump, compressed air bottle or a flexible hose having a mouthpiece thereon. The base 60 is preferably provided with a plurality offeet 11 the floor or a table at a sufficient height thereabove to accommodate the said stud 86,tubing 14 and air valve 15.

The top of the said spherical housing Bl is provided with anaperture 18 through which an inverted shouldered annularly headedsleeve 19 is telescoped. Ananchorage nut 88 threaded on the saidsleeve 19 engages the spherical housing Bl adjacent theaperture 18 therethrough, secures the said spherical housing BI and hermetically seals the joint between the saidsleeve 19 and the said housing 8|. An annular hub M is telescoped in rotatable relationship over the thin upper end of the said inverted shoulderedsleeve 19 and is-supported on the top thereof. The I of the saidanchorage nut 88. The said annular hub 8| is provided with anannular chase 82 around the inner periphery thereof and has outwardly disposedtubular arms 63 telescopingly supported in radiallyopposite apertures 83 therethrough in such a manner as to permit air to pass from the saidannular chase 82 into and through the said oppositely disposed radially extendingtubular arms 83. A pair of oppositely disposedports 84 are provided through the thin upper end of the saidannular sleeve 19 which provide air passages from the inner periphery of theannular sleeve 19 and the saidannular chase 82 within the said hub 8|. The saidsleeve 19 has its upper annular end 85 extending slightly above the top of the annular hub 8| to prevent thevalve member 64 from bearing onto the top of the said annular hub 8| whereby to assure free rotation thereof around the saidsleeve 19.

The valve member ,64 comprises a headedvalve sleeve 81 telescoped into the top of thesleeve 19 with the bottom of thehead 88 thereof disposed against the upper annular end 85 of the saidsleeve 19. Thevalve sleeve 81 of the said valve member 86 extends downwardly in the said annular sleeve 19 a distance slightly below theports 84 therethrough and normally closes the same. Thevalve sleeve 81 is preferably bored and counterbored, and the bore thereof is threaded to accommodate astud 89 around which theconical compression spring 80 is positioned with the base of the saidspring 90 disposed against the annular head of the said inverted annularly headedsleeve 18. As viewed in Fig. 8, opposite sidesof the counterbored portion of the saidvalve sleeve 81 are cut away at 810 in such a mannor that, when thevalve member 84 is turned 90 degrees in either direction, theports 84 are uncovered and air under pressure from within the housing 6| may pass up the inside of thesleeve 19, through theports 84 into thechase 82 of the hub 8 I, through thetubular arms 63, through theflexible tubing 65 connected to and depending from the outer ends of the said tubular arms '63, and through the jet propelledminiature airplanes 18. If too great a pressure is created in the housing 6!, air under pressure in thesleeve 19 lifts thevalve member 64 upward against the compression spring '90 until the bottom end of thevalve sleeve 81 passes the bottom of theports 84 in thesleeve member 18 whereupon air pressure in the housing 8| above that permitted by the saidcompression spring 90 is prevented. Thus, the valve member 86 serves both as an on and oif valve and a safety valve.

Although but two embodiments of the invention have been disclosed and described in detail it is obvious that many changes may be made in the size, shape, arrangement and details of the various elements of the invention without departing from the spirit and scope of the appended claims.

I claim:

1. A jet propelled airplane toy comprising a support, a hub having an air chamber therein rotatably mounted on said support, a pair .of diametrically opposed outwardly extending tubular arms carried by said hub and connected to said air chamber therewithin, a flexible tube connected to and depending from said outwardly extending tubular arms, an airplane mounted on the outer end of each of said flexible tubes, a jet tube disposed within each of the said airplanes and connected to one of said flexible tubes adapted to discharge air rearwardly from said "Itub'es -al jet tube-disposed within each :of 'thersaid :airplanes and tconnectedfto one .0f.'sai1d lfiexible .tubjes adapted :tordisc'harge air rearwardly 'from :saidaairplanes"whereby to causesaid airplanes .to

scarried byfsaid airplanes for: simulating the noise lo'f sj'etiairplanes inaiiightgahd meansifor supplying rair =un-der1pressure torsaid airplanes through .said I-hub,:outwardly extendingarmsand flexible .tubes.

3. A 'et :propelled :airplane toy comprising a -of diametrically opposed routwardly extending tubular arms carried bysaid :hub and connected .to said air :ohamber 3thereWithin, an airplane "mounted on the .outer end ofzea'ch ofsaid-tubular wardl-y extending arms.

4. A jet gDI'QlQQHEd airplane toy :comprising a .ho,using.serving as a ooinpressedrair. ohambena sleeve extending upwardly from vsaid housing through which. air may pass therefrom, a hub rtatably mounted \onsaid sleeve-andla manually operated lvalve means ,for capping the same, the lsaidhub havingan airchamber thereindisposed around .said "sleeve, said valve means being adapted to regulate the vflow .of air from said sleeve to the air chambenin-saidhuha pair of diametrically opposed outwardly extending tubular armslcarried by said hub :and connected :to said air chamber therewithin, an airplane mounted nnzthe .outer end .of each .of said tubular arms,.a jet tube disposed within each of the-said airplanes and connected to one .of said tubular ing the noise of a jetlairplane inflight, and'means for supplying air under pressure to said airplanes through said hub and outwardly extendingarms.

55 for regulating the .flow

5 tblilaranms ;ca1:rie.d byzsaid hub;and lconnectedjto :said :air rchamber therewithin, a :fiexible {tube connected to and depending from each rof lithe airplanes to simulate flight-around said :housing,

:andlmeans ifor supplying :air :under pressure -:to

:said :airplanes through said ihub, routwardlyiex tending .arms and flexible tubes.

:6. A jet propelled airplane toy comprising -a housing serving was a compressed air chamber,

:alsleeve extendingupwardly from said housing through which air may pass therefrom, a .hub rotatably mounted on saidrsleeve, valve means for capping the said sleeve, :the said hub :having :an

the :said =valve means carried by saidsleevehelingrmanua'lly rotatable with respect to said sleeve for regulating-the fiowvof air fromlsaidsleeve to .theair chamber insaidhuband movable axially with "respect to saidlsieeve responsiveto :air ,rpres- =sure within said (housing for :relieving air presmanually rotatable with respect to said sleeve of :air from said sleeve to the air chamber in said hub and movable axially with respect to saidsleeveresponsive .to pressure Within said iliousing for ;;relieving air ;pressure 'within .said housing, spring :means regulating 'the pressure at which :the "said valve means movesaxially to relieve air pressure within said housing, apairof diametrically opposedoutwardly extending tubular zarms carried .by said hub and connected 2110 said air chamber ':therewithimaflexible tubeconnected'to and depend- :ing from .each gofthe :said outwardly extending tubular 'arms, an airplane :mounted on athe outer :around said :housing, and means -for supplying airunder pressurezto said airplanes through said said hub having anair chamber therein disposed chub,outwardly:extendingxarmseandfiexihleitubes 8. A jet propelled airplane toy comprising a housing serving as a compressed air chamber, a sleeve extending upwardly from said housing through which air may pass therefrom, a hub rotatably mounted on said sleeve, valve means for capping the said sleeve, a pump disposed within said housing including a hollow pump rod and a guide therefor extending through said valve means, the said hollow pump rod having communicating apertures therethrough through which air is permitted to pass from without said housing to within the chamber of said pump, pump valve means admitting air under pressure from said pump to within said housing during the pressure stroke of said pump and preventing the escape of air from said housing through said pump, the said hub having an air chamber therein disposed around said sleeve, the said valve means carried by said sleeve being manually rotatable with respect to said sleeve for regulating the flow of air from said sleeve to the air chamber in said hub and movable axially with respect to said sleeve responsive to air pressure within said housing for relieving air pressure within said housing, spring means regulating the pressure at which the said valve means moves axially to relieve air pressure within said housing, a pair of diametrically opposed outwardly extending tubular arms carried by said hub and connected to said air chamber therewithin, a flexible tube connected to and depending from each of the said outwardly extending tubular arms, an airplane mounted on the outer end of each of the said flexible tubes, a jet tube disposed within each of the said airplanes and connected to one of said flexible tubes adapted to discharge air rearwardly from said airplanes whereby to cause said airplanes to simulate flight around said hous- 9. A jet propelled airplane toy comprising a housing, a bladder liner within said housing serving as a compressed air chamber limited in expansion by the walls of said housing, a sleeve extending upwardly from said bladder through said housing through which air may pass therefrom, a hub rotatably mounted on said sleeve, valve means for capping the said sleeve, the said hub having an air chamber therein disposed around said sleeve, the said valve means carried by said sleeve being manually rotatable with respect to said sleeve for regulatin the flow of air from said sleeve to the air chamber in said hub and movable axially with respect to said sleeve responsive to air pressure within said bladder for relieving air pressure within said bladder, spring means regulating the pressure at which the said valve means moves axially to relieve air pressure within said bladder, a pair of diametrically opposed outwardly extending tubular arms carried by said hub and connected to said air chamber therewithin, a flexible tube connected to and depending from each of the said outwardly extending tubular arms, an airplane mounted on the outer end of each of the said flexible tubes, a jet tube disposed within each of the said airplanes and connected to one of said flexible tubes adapted to discharge air rearwardly from said airplanes whereby to cause said airplanes to simulate flight around said housing.

10. A jet propelled airplane toy comprising a housing, a bladder liner within said housing serving as a compressed air chamber limited in expansion by the walls of said housing, a sleeve extending upwardly from said bladder through said housing through which air may pass therefrom, a hub rotatably mounted on said sleeve, valve means for capping the said sleeve, a pump disposed within said bladder including a hollow pump rod and a guide therefor extending through said valve means, the said hollow pump rod having communicating apertures therethrough through which air is permitted to pass from without said bladder to within the chamber of said pump, pump valve means admitting air under pressure from said pump to within said bladder during the pressure stroke of said pump and preventing the escape of air from said bladder through said pump, the said hub having an air chamber therein disposed around said sleeve, the said valve means carried by said sleeve being manually rotatable with respect to said sleeve for regulating the flow of air from said sleeve to the air chamber in said hub and movable axially with respect to said sleeve responsive to air pressure within said bladder for relieving air pressure within said bladder, spring means regulating the pressure at which the said valve means moves axially to re lieve air pressure within said bladder, a pair of diametrically opposed outwardly extending tubular arms carried by said hub and connected to said air chamber therewithin, a flexible tube connected to and depending from each of the said outwardly extending tubular arms, an airplane mounted on the outer end of each of the said flexible tubes, a jet tube disposed within each of the said airplanes and connected to one of said flexible tubes adapted to discharge air rearwardly from said airplanes whereby to cause said airplanes to simulate flight around said housing.

THEODORE A. SCHAAD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 700,494 Cady Sept. 20, 1904 1,295,118 Canaday Feb. 25, 1919 1,357,706 Helpern et al Nov. 2, 1920 1,564,352 Jensen Dec 8, 1925 1,751,723 Borgeson Mar. 25, 1930 2,336,725 Englehart Dec. 14, 1943

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