US1446797A - Flying machine - Google Patents

Description

Feb. 27, 1923. v 1,446,797 F. HOFFNER FLYING MACHINE Filed Dec. 19, 1921 5 sheets-sheet 1 Feb. 27, 1-923. 1,446,7 97

F. HOFFNEIR FLYING MACHINE Filed Dec. 19, 1921 s shets-shet 5 f 11 11 o o o o i I 1! z 1.9

Patented Feb-2'7, 1923.

UNITED STATES PATENT OFF-ICE. 4

FRANK HOFFNER, OE NAN'IICOKE, PENNSYLVANIA.

FLYING MACHINE.

Application filed December 19, 1921. Serial 1\To. 523,437.

this application is a flying machine, and

the invention aims to provide a flying machine which is so constructed that it will take up very little space, measured horizontally, the machine, therefore being adapted to be operated in restricted places where an ordinary plane would be useless.

The invention aims, further, to provide a flying machine of the helicopter type, having means whereby components may be resolved out of the lifting force, thereby to move the machine forwardly or laterally.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

In the drawings Figure 1 shows in rear elevation, a device constructed in accordance with the invention; Figure 2 is a top plan; Figure. 3 is a vertical longitudinal section wherein parts appear in elevation.

In carrying out the invention there is I provided a frame 1 of considerably greater height than width, the frame beingwider at its upper end than at its lower end. A cab 2 is mounted, on the frame 1, an internal combustion engine 3 being disposed on the frame 1, within the cab. The radiator for the internal combustion engine 3 is denoted by the numeral 4 and is located in the front of the cab 2, the fuel tank being shown beveled pinions 8.v A seat 10 is disposed within the cab 2 and is so located that the occupant can control the engine 3 readily. Bearings 11 are mounted on the upper end of the frame 1, and in the bearings 11,

a shaft 12 is journaled for rotation, the

Liftshaftbeing disposed parallel to the line of advance of the craft, the line of advance being indicated by the arrow A in Figure 3. A rudder 14 is secured to the shaft 12 and is dlsposed parallel to the line of ad vance. The shaft 12 has a depending arm 15 connected by a link 16 to the arm 17 of .Iangers 21 depend from the top portion i of the frame 1, as shown best in Figure 1,

and in the hangers there is journaled a shaft 22, disposed at right angles to the line of advance of the craft. The shaft 22 carries a rudder 23 disposed at right angles to the line of advance of the craft. There is an arm 24 on the shaft 22, the arm' being connected by a link 25 to an arm 26 on a shaft which is journaled in bearings 27 mounted on the upper, end of the engine -3,the shaft carrying a hand wheel 28,which, like'the lever 18, is readily accessible from the operators seat 10. v v

In practical operation, motion is transmitted from the engine 3 by its shaft 9 to the shafts 5, through the instrumentality of the beveled pinions 8. If the rudder 23 and the rudder 14 are each in a vertical position, the craft will rise vertically. If the rudder Figure 3, or in Figure 1, then the craft will tend to move in a direction indicated by the arrow B in Figure 1, the rudders, each, resolving out ofthe force which tends to lift the craft, a component -which will move the craft laterally, or forwardly and backwardly as. hereinbefore described. 4

It is obvious that motion may be trans: mitted to the rudder 14 by means of the shaft 12, the arm 15, the link 16, the lever arm 17, and the lever 18. Similarly, the wheel28 and its shaft, the arm 26, the link 25, the arm 24 and the shaft 22 transmit motion to the rudder 23.

Having thus described the invention,-what is claimed is In a flying machine, a frame in-the form of an inverted frusto-tetragonal pyramid; an engine mounted onthe lower portion Of a lever 18 fulcrumed on the side of the in- '23 be swung from the position shown in Figof the frame and located at right angles to a plane passing through the propeller shafts; a rudder located to the rear of the frame and carried by the first rudder shaft in parallel relation to the axis of said shaft; a second rudder shaft j ournaled on the frame and located below but closely adjacent to the first rudder shaft, the second rudder shaft being disposed at right angles tothe first rudder shaft and in alinement with the propeller shafts; a rudder located within the frame and carried b the second rudder shaft in parallel relation to the axis of said shaft; means for operating the rudder shafts from an inferior point; and lifting propellers carried by the propeller shafts and overhanging the frame, the propellers being spaced to expose the rudders.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

FRANK HOFFNER.

Witnesses STEPHEN MARKIEWIGZ, EDWARD GLOYPUBST.

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