US1773625A - Aeroplane - Google Patents

Description

Aug. 19, 1930. G. o. KUNICKE 1,713,625

I AEROPLANE Filed July 12, 1929 l 2 Sheets-'Sheet 1 INVENTOR Geolye UiZo Kumi/cke BY 31am/n ATTORN EYS wlTNEssEs y 1/IZWHM Aug. 119, 1930. G. o. KuNlcKE AEROPLANE `Filed July 12, 1929 2 Shams-Sheet` 2 WITNESSES BY MMM/argv? ATTORNEYS Patented Aug. 19, 193@ GEORGE OTTO KUNICKE, OF DUNELLEN, NEW JERSEY AEROPLAN E Application filed July 12, 1929. Serial No.- 377,861.

This invention relates to aeroplanes.

It is among they objects of the present inv veiition to provide a novel and improved aeroplane of simple and eflicient construction and well designed to meet the demands of economic manufacture.

It is a further object lof the present invention to provide an laeroplane with novel and improved means for propelling the saine.

It is a further object of the present invention to provide an aeroplane-includingprd pelling means' which act to retard the downwardmovement of the aeroplane in a nose dive.

It is a further object of the present invention to providean aeroplane having tudinallyextending passageway, together with means for closing the rear end of the pas* A sageway softhat the same will act as a parachute to retard the downward movement of the plane.

Other objects and features of the present invention include the novelcombination and interrelation ofthe parts whereby the whole provides a simple and improved construction.

Other objects ofthe present invention will be apparent from a consideration of the following specification taken in conjunction with the accompanying drawings, in which Figure 1 is a top plan view of one form of the present invention, withpporti'ons broken away;

Fig. 2 is a side elevation with the motorportion and door portion in section; A Fig. 3 is a front elevation of the device, and

Fig. 4 is adetail view of the door portion. Vwith the closure portions therefor in closed position.

, Referring more particularly to the drawings, the invention includes the conventional longitudinally-extending fuselage indicated by the numeral 10, together with the transversely-extending 'front wing 11. TheA fuselage 10 preferably includes the usual windows l5 12 and the pilot seat and operating assembly generally indicated at 14. The fuselage further includes at the tail end, the rudder 15, and is, in the 'frcsent form of the invention, supported' by the wheel assembly indicated by the numeral 16. It will be understood that the a longi-A invention is not confined to the specific type of fuselage herein indicated and that the in-y vention is applicable to various forms of both land and watercrafts of either monoplane or biplaneconstruction.

Associated with the fuselage rearl of the.' driving compartment, there is provided a pair of parallel longitudinally-extending air passageways 17,' preferably formed by suitable housings 18 secured to the fuselage 10. The outer side walls of tlie housings 18 are parallel to the-axis of the plane, whereby air passing therethrough willvhave'a direct free straight path through the passageway.. The.

are ytapered to conform with the usual streamline taper of the fuselage 10. The housings 18 are open at the front, as at 19, and at the rear, as at 20, whereby the construction provides a funnel-like passageway larger at its forward end and ldecreasing in crosssect-ion at its rearward end, but being of substantially uniform width throughout. For propelling the craft, there is mounted in `each of the passageways 17,4 motor and propeller assemblies, indicated at 21, and suitably controlled by 'the pilot, as at 14, wherebywith the motor and propellers runupper and lower walls of the passageways ning, air. will bef drawn iii through the for.

ward open end 19 ofthe passageway and will be expelled through the rearward end 20.

i This construction provides a double efliciency for the propellers inthat they not only pull the craft forwardlyatthe propeller, but the exhaust-of the air at 20, due to the contour of the passageways, will further push the craft forwardly, thus increasing the ethcieney of the'propellers. f

The invention is, however, not confined to the use of the propellers'within the housings 18, but it will be readily seen thatthe driving propellers may be mounted in other locations, if desired. Itswill be seen that regardless of the mount-ing. ofthe propellers, the speed of the plane will act to cause a rapid passage of air through'the passageways 17. A

y In case of emergency. such as' an uncon-` trolled nose dive, it is desirable to provide means for retardingthe movement of the plane through the air. This is accomplished upon the reel 30,

a'- nose d1ve,.the passageways 17 with their' V in reventin the changes, modifications and f 1. In an aeroplane,

Wa S17.

alle with ings mounted, on the fuselage, said passage-` in the present invention by meansof upper andlower pivoted closures 22 and 23, respectively." The upper closure 22 normally lies adjacent the uper wall of the passageway,

while the lower closure 28 is'adapted in nor' mal position to form thel lower end wall of the passageway. The closures 22 and 23 are pivotally associated with the walls as at 24,-

to swing on horizontal axes and are pivotally movable by a pair of interengaging arms 25 associated with the Lower closure and 26 associated with the upper closure. The pintle of the lower closure extends transversely to provide an operating link 27 which passes through the fuselage and which is provided within the fusela e with an operating lever 28 connected in suitable manner as by a cable 29, to a controlling pulley 30 mounted within the operators compartment. The arrangement is such that when the cable 29 is wound about the'pulley 30, the lever 28 is rocked in counterclockwise direction, thus raising the lower closure 23, and, at the same time, rocking in counterclockwise direction the arm 25, which by such rocking engages the arm 26 of the upper closure 22, thus causing the closure22 to be moved downwardly with the u ward movement of the closure 23, Where y the two co-operate to close or par tially close the rear end 20 of the-passage rom'theforegoing it will readily be seen that in the operation should the an uncontrolled nose dive or 'if it should be desired for any reason to retard the movement of the plane, the cable 29may be wound l thus closing or partially closin the rear end of the passageways 17, where y. the passage 'of air therethrough will be retarded and the Vspeed of the plane will be materially cut down. It will be seen that in rear ends closed, act virtually as arachutes rapid'descent o the craft.

r'om the oregoing itfwill readily be seen that the invention provides novel andimproved construction which will materially increase the factor of safety of aircrafts.

Itfwillbe not confined to the specific structural details herein .enumerated and thatv numerous the full use of equivalents may be resorted to without departing from the spirit or scope of the present yinvention as outlined in the appended claims.

What is claimed is: v

the combination with a fuselage and wing assembly, of a pair of height toward their rear,

-said closure members being arranged plane go into end of said Ipassageways, the passage( of air through said passageways being controlled by closure members for said passageways, said closure members being pivotally mounted in the rear end of the related passageway, said closure members being arranged for cooperative movement in response to control by the pilot, said closure members having angularly associated 4 whereby movement of one of said closure members will cause movement of theother' closure member. y

2. In an aeroplane, the combination with a fuselage and wing assembly, of a pair of longitudinally-extending passageways parallel with the fuselage 'and formed by housings mounted on the fuselage, said passageways beine' of uniform Width and diminishing and motor propeller assemblies mounted in of said through by closure members for said passageways, said closure members being pivotally mount,- ed in the rear end of the related passa eway,

for cooperative movement, common means connected with one of the closure members of each passageway to operate them in unison, and coacting means on the closure members of'each passageway causing one to move'in response to the other. I l

GEORGE OTTO KUNICKE.

understood that the invention is interengaging membersy the forward enoll passageways, the passage of air said passageways being controlledl lon l tudlnally extending (frassageways parthelfuselage an formed by heus;

propeller assemblies mounted in the forward

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