Патент USA US2404922код для вставки
July 30, 1946. ' w. R. PADGETT 2,404,922 MINIATURE SELF-PROPELLED AIRPLANE Filed Feb. 20, 1945 2 Sheets-Sheet 1 July 30, 1946. w. R. _PADGETT 2,404,922 MINIATURE SELF-PROPELLED AIRPLANE 'Filed Feb. 20, 1945 NN. \\ W o g QNH 2 Sheets-Sheet 2 ' 2,404,922 Patented July 30, 1946 UNITED ‘STATES PATENT OFFICE 2,404,922 MINIATURE SELF-PROPELLED AIRPLANE William R. Padgett, Pasadena, Tex. _ Application February 20, 1945, Serial No. 528,927 6 Claims. (01. 46—-77)' 2 1 This invention relates to miniature self-pro pelled airplanes.‘ - \ : rudder 5 pivoted to move on a vertical axis and also has the elevators 5, pivoted to move on a horizontal axis. Within the fuselage there is a horizontal plate An object of the invention is to provide an air plane of the control line type whose rudder will l, forming a supporting frame. Above the frame normally be maintained, by a control line, in po in there is a bell crank formed with the cross-head sition to keep the craft in its outer path, or course, 8 and the lever-arm 9 and beneath the frame in ?ight, while the control line is taut; with there is a bell crank formed with the cross-head means for automatically moving the rudder out Ill and the lever~arm ll. These bell cranks are wardly, should the control line become slack, as in the, event the craft should be forced inwardly 10 mounted to rotate ona common pivot l2 and are held spaced from the frame ‘I by the upper and off its normal path by a side wind, so that the lower washers l3 and I4. craft will be guided, by the rudder, outwardly into Connected to the elevators there is a depend its former, or normal, course. ing horn and a rigid link I5 is pivoted, at its Another object of the invention is to provide means for maintaining the elevators in position 15 forward end, to one end of the cross-head 8 and, at its other end, to the lower end of said horn. to keep the craft at a selected elevation, in ?ight, One end of a pull spring fl’ is connected to the with an elevator control line and means connect other end of the cross-head and its otherend is ing said line to the elevators whereby the posi connected to the post l8 upstanding from the tion of the elevators and the elevation of the craft frame. ' 20 may be controlled and varied. There are spaced stops l9 and 20 on the frame ‘I A further object of the invention is to provide the former of which extends above and beneath means for controlling an aileron of one of the the frame. The range of movement of the arm wings, through one or both of the control lines, 9 is limited by these stops.‘ " ' ' ' I whereby the craft may be laterally stabilized. The rudder 5 has a laterally extended horn 2| The invention also embodies a novel type of 25 and a rigid link 22 is pivoted, atone endjto this grip, or handle, whereby the control lines may be horn and, at itsother end to one end of the manipulated. cross-head 10. One end of a pull spring 23 'is; With the above and other objects in view this connected to the other end of the horn Ill and invention has particular relation to certain novel the other end of said spring 23 is connected to 30 features .of construction, operation and arrange the post .24 which depends from the frame 1. ment of parts an example of which is given in this There is a stop 25 which depends from the speci?cation and illustrated in the accompanying drawings, wherein: _ Figure 1 shows a perspective view of the air craft, embodying the invention and partly brokenv away. Figure 2 shows an outer end viewof one of the wings, or planes, showing the aileron control. frame "I and the range of movement of the mm H is limited by the stops I9, 25 between which it works. There are the flexible control lines 26, 21 which are connected, at one end, to the free ends of the respective arms 9 and H. At their other ends the line 26 is connected to the upper end Figure 3 shows a side view of the grip, or handle. of the hand grip 28 and the line 27 is connected Figure 4 shows a fragmentary, horizontal, sec 40 to the middle of said grip, as shown in Figures tional View. 1 and 3. Figure 5 shows a fragmentary, vertical, sec In flight the craft will follow a, substantially tional view. circular course about the operator on the ground Figure 6 shows a fragmentary, bottom view, by whom the grip 28 is held. The centrifugal partly in section, and Figure '7 shows a fragmentary, plan view of one of the wings, or planes, partly in section. Referring now more particularly to the draw ings the numeral I designates the fuselage as a whole at the forward end of which is the motor driven propeller 2. Fixed to the fuselage are the laterally extended force of the craft will hold the line 21 taut with the spring 23 under tension and with the rudder in intermediate, or neutral, position, Should the craft encounter a side current which forces it inwardly, with respect to the circle of ?ight, the control line 21 will, at once, become slack and the spring 23 will act, through the cross-head l3 and link 22 to move the rudder outwardly, with wings, or planes, 3, provided with ailerons one of respect to said circle, thus causing the craft to which is hinged to move on the hinges 4. resume its original course. 55 The rear end of the fuselage has the vertical 3 2,404,922 At While the craft is in ?ight the pull on the line 26 will ‘normally balance the pull of the spring I1 and maintain the elevators 6 in hori eye and a control line connected, at one end, to the craft and passing through said eye and whose other end is adapted to be held by an operator zontal position so as to keep the craft in a level on the ground. course. Should the craft tend to descend the pull 3. In a miniature, self propelled, aircraft hav on the line 26 may be increased, by suitable ma ing a fuselage, laterally extended wings, or planes nipulation of the grip 28, and this will actuate and a rudder pivoted to move on a vertical axis; the head 8 and link Hi to raise the elevators and a cross-head pivotally mounted on the fuselage guide the craft upwardly; on the other hand to move on a vertical axis, a link connected to should the craft climb the line 26 may be released e the cross-head and to the rudder, a yieldable and thereupon the spring II will actuate the head member connected to the cross-head and effective 8 and link [6 and the elevators will be lowered to normally hold the rudder in one position and a which will cause the craft to descend. The ele control line connected to the cross-head through vation of the craft may, therefore, be controlled which the rudder may be held in another position by manipulating the line 26. when the craft is in ?ight. In order to maintain the craft stabilized lat“ 4. In a miniature, self propelled, aircraft hav erally the aileron 29 is hinged and a forwardly ex ing a fuselage, lateral wings, or planes, thereon, a tended, rigid arm 30 is rigidly secured to the for rudder mounted to pivot on a vertical axis and an ward edge thereof and extends above the corre elevator mounted to pivot on a horizontal axis; sponding Wing 3. The free end of this arm has cross-heads pivoted on the fuselage, rigid links the upper and lower eyes 3| and 32 through which connecting one cross-head with the rudder and the respective lines 25 and 21 pass as shown in the other cross-head with the elevator, control Figure 1. The arm 38 works through a vertical lines connected to the cross-heads through which guide 33, upstanding from the corresponding the rudder and elevator may be moved to selected wing, as shown in Figures 1 and 2. Should the 1 positions, yieldable members connected to the craft bank toward the operator the lines 26, 2‘! cross~heads effective to move the rudder and ele will remain taut and will cause a corresponding vator to other positions, when the control lines relative upward movement of the arm 35} and downward movement of the aileron 29 which will tend to stabilize the craft; on the other hand are slack. 5. In a miniature, self propelled, aircraft hav ing a fuselage, lateral wings, or planes, thereon, a rudder mounted to pivot on a vertical axis and should the craft bank in the opposite direction the aileron 29 will be elevated by the arm 39 and the craft stabilized. On the wing opposite the aileron 29 there is also an aileron 34. This aileron is attached to the ; wing by means of metal plates 35, one end of each plate being inserted into the wing and the other an elevator mounted to pivot on a horizontal axis; cross-heads pivoted On the fuselage, links connecting one cross-head with the rudder and the other cross-head with the elevator, control lines connected to the cross-heads through which the rudder and elevator may be moved to selected positions, yieldable members connected to the cross-heads effective to move the rudder and ele ends thereof into the aileron 34. These plates are of bendable material but when bent they will remain bent so that the aileron 34 may be ad justed up or down to obtain the best results and ' vator to other positions, when the control lines will remain in that position until re-adjusted. Thus the forward direction, the elevation andv the lateral stability of the craft is at all times under the control of the operator. What I claim is: 1. In a miniature, self propelled, airplane hav~ ing a fuselage, laterally extended wings on the thereby limiting the movement of the rudder and elevator. 6. In a miniature, self propelled, aircraft hav ing a fuselage, lateral wings thereon, a rudder are slack and stops on the fuselage for limiting the range of movement of the cross-heads and mounted to pivot on a vertical axis and an ele vator mounted to pivot on a horizontal axis: cross-heads mounted to move on a common pivot fuselage one of which is provided with an aileron which is hinged thereto, a control line attached at one end to the airplane and whose other end is adapted to be held by an operator on the on the fuselage and having extended arms, links connecting one cross-head with the rudder and the other cross-head with the elevator, control lines connected to the arms through which the rudder and elevator may be moved to selected ground and an arm rigidly connected to the ailer on operatively connecting the aileron with the control line whereby the aileron will be moved downwardly as the Wing is lowered and moved up wardly as the wing is elevated. 2. In a miniature, self propelled, aircraft hav~ ing a fuselage, laterally extended wings on the fuselage, an aileron hinged on one of the wings, a rigid arm ?xed to the aileron and whose free end is turned horizontally and formed with an Ll positions, yieldable members connected to the cross-heads effective to move the rudder and the elevator to other positions when the control lines are slack and means for limiting the range of movement of the cross-heads and thereby limit ,’ ing the movement of the rudder and elevator. WILLIAM R. PADGETT.