US1575880A - Aeroplane - Google Patents

Description

March 9 1926.

Filed May 2L 1925 w. wALg.

AEROPLANE s sheets-sheet 1 l m W Syvum/Wol www4/)Qur Q @Il W. WALL AEROPLANE March 9,1926. 1,575,880

`Fi1ed May 2l. 1925 s sheets-sheet 2 31a/wanton atltoz nu! March 9 1926.

W. WALL AER'OPLANE Filed May 2.1- 1925 s sheets-sheet 5 Patented Mar. 9, 1926.

UNITED STATES raraur ofrezca,

WILLIAM WALL, OF CLEVELAND, OHIO.

AEROPLANE.

Application filed 'May 21, 1925. Serial No. 31,835.

To all whom t may concern:

Be it known that I, 1WILLIAM WALL, a citizen of the United States, residing at Cleveland, in the coun-ty of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Aeroplanes,l of which the following is a specification.

This invention relates to improvements in acroplanes, the primary object being to construct an aeroplane or flying machine which will maintain its equilibrium at all times associated and controllable with minimumv effort on the part of the operator..

It is likewise anobjeot to providey anaeroplane having supporting wings of great area and at the same time so constructand arrange them as to require a minimum amount of space. n

Other objects will be in par-t obvious and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by those skilled in the art, I have in theaccompanying ilustrative drawings and detailed description pointed out the preferred embodiment of the same.r

Figure 1 is a side elevation of my improved aeroplane;

Figure 2 is a top plan view thereof;

Figure 3 is a front end elevation;

Figure i is a perspective view diagrammatically showing the supporting wing arrangement;

Figure 5 is a diagrammatic illustration of the plane control means;

Figure 6 is a detail view of the front end showing the connection between the elevating planes and the main portion of the wings; and l Figure 7 is a detail view illustrating the manner in which the rear 'control planesmay be adjusted. n A

Similar characters of reference designate similar parts throughout this application.

The fuselage 10 is elongated and tapers ioward its opposite ends at which propellers 11 are arranged. rllhese propellers 11 are carried by air defiecting caps 12 andvboth are rotated together by means of internal combustion engines or the like power plants 13. Supporting wheels or ylanding' gear 14` of any preferred type is carried by the fuselage 10.

The supporting means includes a set of transverse ribs 15 which extend acrossfthe upper side of the fuselage 10 and haveA their end port-ions uniformlyspaced there from. An elongated substantially inverted il-shaped frame 16k is fixed centrallyupon the set of transverse ribs 15 and rigidly connected thereto as clearly shown in `Figure 3. The lower side 17 of this V-shaped central portion is open while the other two-` sides 18 and 19 and theportions of the ribs beyond` the Ypoint of connection to the df-shaped section are covered with fabric of any preferred type. supporting or sustaining member such as is shown in Figure 1. These transverse'ribs 15 have their outer ends braced by means of wires 2O and 21 which extend to the fuselage This results in the formation of a and the apex oftheV -shaped portion 10 and t y 16 respectively. v y

The horizontal wing portions 22 have substantially rectangular openings 23 and 211 at theirl rear and forward ends respectively.

Combined elevating and sustaining planes 275 are arranged over the forward openings 24 of the horizontal wing 'portions 22 and have their rear edges hinged or pivoted to the wings as shown at 26 in Figure 6. As shown in this figure, coil springs 27 are arranged to normally elevateV the front edges of these elevating planes 25.

These forward elevating planes 25 are adjusted to different positions by Vmeans of a foot pedal 28 arranged on a rock-shaft 29 whose outer ends carry arms 30 as shown in Figure 5; these arms 30 having cords or cables 31 attached thereto and passing over pulleys or the like 32 and then fastened to the front edges of the planes as shown.

The rear elevating planes 33 are of less area than ythe openings 23 so they may be moved through the openings to effect an upward or downward movement of the aero plane. As shown in Figures 5 and 7 the forward edge of each rear plane 3?) is hinged to the frame work of the lwing` portion 22 and at this hinged point I arraugI a noi'- Inally verticallyl disposed cross-bar 34 to whose extremities I fix control wires 35 in the manner clearly illustrated in Figure 5, These control wires have their forward ends connected to a relatively small pulley 3G carried by a transverse shaft 37 4at Whose medial point is fixed a cross-bar 38. Gonveniently locatedfor operation by the pilot is a control member 39 in the form of a sheave which may be locked at any point.

About this shea-ve I train a cable or cord 40 which is carried rearwardly andl has its ends fastened in any preferred manner to the extremities of the last named cross-bar 38.'.

Vforth possesses an unusually large wing area which will materially assist in supporting the machine in the air, and further, through arrangement the inverted V-shaped central portionrlG extendinfzz,1 longitudinally of the machine there will be a material reduction in the tendency to swerve fromV the desired course dueto adverse air currents etc. `l'Ilie particular arrangement of the driving engines in eombination with the wing or plane construction will materially assist in balancing Vor stabilizing a machine so y constructed.

In operating this aeroplane, the motors are started toset the propellers in motion. lVhen a certain speed has been attained the front elevating planes 25 are adjusted as shown in `Figure l, and the rear elevating planes will temporarily maintain `a normal central position. After the machine has taken off, the front elevating'plane 25 may be returned to a position in alinement with the remaining portion of the wing 22 and if a liiglieraltitude is desired the rear planes 33 may be adjusted to raise the rear edges'.

Y The result of such manipulation is obvious.

Downward movement is effected through lowering the rear edges of the' 2. An aeroplane comprising, an elongated Y "l fuselage, an inverted V-sliaped member en;w

tending over the major4 portion of the fuse! lage, transverse .ribs arranged on the upper side of the fuselage and interconnecting y the same with said member, substantially horizontally disposed wings extending transl` versely from the' base `of `-said inemberand pelling and control means. a Y y '13. lAn aero lane co1npr`ising,`an elongated fuselage, an inverted `V-shaped member 'extending Vover `the main portionbf the fuselage, transverse ribs arranged on the upper side'of the fuselage and intel-connecting the coextensive in length therewith, and pro? same with-said member, substantially; hori- Zontally disposed wings extending trans# versely from the base of saidmemberandV coextensive' in length therewith, control planes arranged at each end of` the horizontal wings,means for varying the angle of said planes, a rudder, and means" for propelling the aeroplane.

In testimonywhereo I aflix my signature.

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