US1620449A - Airship - Google Patents

Description

March 8. 1927. 1,620,449

L. DURR AIRSHIP Filed July 15, 1925 imam/a r ydwzy JzZrrf Z13 Mir-hers Patented Mar. 8, 1927.

UNITED STATES PATENT OFFICE.

LUDWIG Dlj'RR, OF FRIEDRICHSHAFEN, GERMANY,\ASSIGNR To LUFTSGHIFFBAU ZEPIELIN GESELLSOHAFT MIT IBESCHRANKTER HAFTUNG, OF FBIEDRIGHSHAFEN,

IBODENSEE GERMANY. v

AIRSHIP.

Application filed July 15, 1925, Serial No. 48,833, and in Germany July 31, 1924.

My invention relates to gas inflated air-. ships having cars with motors and propellers for driving the ship through the air. Such airships generally have a huge gas inflated bag or hull from which the power cars are suspended. With big ships several power cars have to be arranged. The more-power units there are the greater is the reliability. On the other hand the propellers of such cars should not be too close together neither longitudinally or laterally because of the possibility of being influenced by each other.

Furthermore the air current increased in its speed behind each propeller will cause an increase of friction on the outer cover of the gas bag or hull and will also create an increase in its swinging movements.

Object of my invention is to do away with such drawbacks by inclining the axis of the propeller so that this axis and the tangent to the adjacent portion of the outer cover of the airship diverge towards the ships tail. This may be attained by lowering the rear end of the power car from its horizontal axis and also by moving its rear end outwardly from its normal position parallel to the airships axis. Or both of the described ways may be made use of at'the same time. The effect will always be that the air current of increased speed behind eachpropeller will have a direction outwardly from the airship.

Having given a general description of my invention I now want to explain it more in detail referring to the drawings which embody an example thereof.

Fig. 1 is the side view of an airship and Fig. 2*is a corresponding top view, the latter showing the suspended cars in dotted lines.

The airship hull is designated-by the let ter a. Control car I) and power cars 0, (Z, 6 and f are suspended from the hull a. The axes of such cars are designated by the letters 0, d, e, and f respectively; while the corresponding propellers are shown at c", d", e", and f respectively.

From Fig. 1 it will be seen in which manner the vertical inclination of the power car axis may be designed.- In this example car 0 is even more inclined than car e, which is not absolutely necessary as both cars are laterally distanced from each other as may be seen from Fig. 2. In this figure the horizontal divergency of the axis of the different cars is shown, which needs no special explanation.

' According to my invention the floor in the vertically inclined cars may be excepted from the inclination so that a horizontal floor may facilitate walking and 'working for the mechanician.

I do not want to limit myself to the ex ample described orshown in the drawings as many variations will occur to those skilled in the art.

What I claim is: g

1. An airship comprisinga hull; and a powercar suspended from said hull in fixed relation thereto; the axis of said power car being vertically inclined so that said axis and the axis of said hull diverge towards the ships tail.

2. An airship comprising a hull; and a power car suspended from said hull in fixed relation thereto; the horizontal axis of said power car and the horizontal axis of said hull diverging towards the ships tail.

3. An airship comprising a hull; and a power car suspended from said hull; the longitudinal axis of said hull and the longitudinal axis of said power car diverging horizontally and vertically towards the ships tail. v

4. An airship comprising a hull; a power car suspended from said hull; and a propeller attached to said power car; the axis of said hull and the axis of said propeller being in fixed relation to each other and horlizontally diverging towards the ships tai 5. An airship comprising a hull; a power car suspended from said hull; and a propeller attached to said power car; the axis of said hull and the axis of said propeller being in fixed relation to each other and vertically diverging towards the ships tail.

6. An airship comprising a hull; a power car suspended from said hull; and a propeller attached to said power car; the axis of said hull and the axis of said propellerbeing. in fixed relation to each other and diverging, towards the ships tail. r

DR.\LUDWIG DURR.

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