US1119363A - Aeroplane. - Google Patents

Description

C. M. MGMAHON.

Patented Dec. 1, 1914.

665.5 mi( am CONNELL M. MOMAHON, 0F MINNEAPOLIS, MINNESOTA.

AEROPLANE.

Specification of Letters Patent.

Patented Dec.- 1, 1914.

Application tiled April 29, 1914. Serial No. 835,140.

To all w/Lom t may concern Be it known that I, CONNELL M. MC- MAHON, citizen of the United States, resident of Minneapolis, county of Hennepin, State of Minnesota, have invented certain new and useful Improvements in Aeroplanes, of which the following is a specification.

The object of my invention is to increase the area of the plane surfaces exposed to the air currents without enlarging the machine.

A further object is to provide improved means for restoring the equilibrium of the machine easily and quickly.

A further object is to provide an improved fuel oil receptacle for the propellin engines. l

ther objects of the invention will appear from the following detailed description.

The invention consists generally in various constructions and combinations, all as hereinafter described and particularly pointed out in the claims. I

In the accompanying drawings forming part of this specification, Figure 1 is a front elevation of an aeroplane embodying my invention, Fig. 2 is a sectional view on the line of Fig. 1, Fig. 3 is an end elevation of the machine.

In the drawing, 2, 3 and 4 represent planes, rectangular in form, arranged one above another and suitably spaced apart and inclined forwardly and upwardly. The upper plane is preferably provided with a gas chamber 5 to increase the buoyancy of the machine. The planes are provided at the corners with rods 6 which hold them in suitable spaced relation and upright bars 7 are also provided at the front and rear of the machine, connecting the longitudinal edges of the planes and holding them rigidly in parallel relation with one another. The lower plane is provided with suitable wheels 8, such as are usually arranged beneath a machine of this type.

9 is a forward propeller and 10 a rear propeller, connected respectively with a suitable source of motive power, indicated at 11.

I prefer to provide two motors, located near the middle portion of the machine, one in front and the other in the rear, and the pro ellers are fastened respectively to the sha ts of the motors on the outside of the machine frame, the front propeller bemg adapted to pull ahead while the rear one 1s pushing behind, and if for any reason one of the motors should become inoperatrve and stop, the other motor, operatlng lndependently thereof, will drive the other propeller until the machine can be directed to a place of safety.

12 is a fuel oil receptacle, arched over the middle portion of the machine from the front to the rear, having its highest point in the middle and adapted to feed a fuel 011 to the'motors in any position of the aeroplane, except, of course, in case the plane should turn bottom up, but that position would be practically impossible for the car to assume, because of the balancing blades to be hereinafter described, and the gas chamber located in the top of the machine.

The steering is preferably accomplished by a rudder 13, pivoted at 14 and normally held in a horizontal position by a spring 15. A frame 16, preferably rectangular in form, is preferably connected to the rudder-bar at one end and is also pivoted at 17 to the upright post 18. A seat 19 extends along beneath this frame and the person steering the ma chine will sit on this seat within the frame 16 and by tilting this frame to the right or left or up or down, can change the position of the rudder and easily ide the machine. The post 20 at the rear sidi;l of the car serves as a support for the rudder bar, allowing it to be oscillated in any direction.

Between the rudder and the ends of the plane I prefer to provide seats 21 corresponding to the middle seat and carrying a bearing for the lower end of a crank shaft 22 that is journaled near its upper end in the frame of the middle plane 3. On the upper end of the crank shaft is a liftin blade 23 arranged in a suitable plane an adapted, when revolved, to exert a lifting action and restore the aeroplane to its horizontal equilibrium. There being one of these lifting blades on each side of the center of the machine and an operator stationed by each blade, it follows that fin case either end of the machine should tilt downward the operator at that end, by revolving the lifting plane, while the forward motion of the machine continues, will be able to lift the end until the desired horizontal position is again regained. This lifting blade may be made of any suitable size, according to the carrying capacity f the machine, and the size of the planes, and ordinarily it would be necessary for the operator to revolve the blade a few times to restore the machine to its normal horizontal position that the o erator desires it to assume while makingl a fight.

Both lifting or balancing blades may be used in rising from the ground to assist the flight, and they may also be used in ali hting, in addition to their function of ai ing the gas chamber in keeping the aeroplane in balance.

ln various ways the details of construction herein shown and described may be modified and still be within the scope of my invention.

l claim as my invention:

1. An' aeroplane comprising upper and lower planes, a propeller revolving in a vertical plane and a motor therefor, upright crank shafts mounted in said planes upon opposite sides of said propeller and equidistantsubstantially therefrom, liftingblades mounted on said shafts, operators seats provided adjacent to said. crank shafts, the revolution of said lifting bladesoperating to maintain said plane in a substantially horizontal position.

2. An aeroplane comprising an upper and lower plane, forward and rear motors therein, forward and rear propelling blades operatively connected with said motors and an arched oil receptacle supported above said motors and connected therewith for supplying fuel oil to said motors in diderent positions of said plane. l

3. An aeroplane comprising upper and ananas lower planes and rodsA holding them in spaced relation, an intermediate plane parallel with said upper and. lower planes and spaced therefrom, a propeller blade operating in a vertical plane, and balancing blades operating in horizontal planes upon opposite sides of said propeller blade above and adjacent to said intermediate plane.

l. An aeroplane comprising utpper and lower planes, a centrally arrange longitudinal seat therein, a propeller blade operating in a vertical plane, a frame arranged above said seat and pivotally connected at one end with the forward portion of said aeroplane, a rudder bar pivoted in the rear portion of said aeroplane and projecting backwardly therefrom and provided with rudder blades, the forward end. of said bar being pivotally connected with said frame,

and means for yieldingly holding said rudder bar in a substantially horizontal position.

5. An aeroplane comprising upper and lower planes, an intermediate plane parallel with said upper and lower planes and spaced therefrom, a propeller blade operating in a vertical plane, and balancing blades operating in a horizontal plane upon opposite sides of said propeller blade and adjacent to said intermediate plane.

ln witness whereof, l have hereunto set my hand this 22d day of April, 1914s.

coNNEL'L M Mortar-ion.

Witnesses:

GENEVIEVE E. SORENSEN, EDWARD A.. PAUL.

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