US1712529A - Mixed airship provided with parachute - Google Patents

Description

May 14,1929. e. TALLEI luxnn AIRSHIP PROVIDED WITH PAR'AcHuTs Filed Oct. 12, 1927 2 Sheets-Sheet l w mg A Her/12y May 14, 1929. ca. TALLEI 1,712,529

MIXED AIRSHIP PROVIDED WITH PARACHUTE Filed 001:. 1927 2 SheecS -Sheet 2 Guido T he line X- KofFi Patented May 14, 1929.

UNITED STATES PATENT OFFICE.

sumo TAIlLEI, or noun, ITALY.

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Application filed October 12, 1927, Serial No. 225,721,- and in Italy October 15, 1926.

The present invention concerns a novel re the supporting surfaces being arranged in such a manner that they can act as parachutes when the necessity arises.

The airship according to the present intention consists substantially of a central hollow body of elongated shape, said hollow body having symmetrical carrying surfaces externally disposed and attached to the sides and top thereof. a y

The central body consists of a gas envel 2h ope of aluminium sheet or of any other light metal sheet; said envelope is carried by a. supporting and stiffening frame and contains in its interior air heated by means of the exhaust gases of the engines, so as to produce a statical lifting power to which, during the flight is added the dynamical lifting power due to the pressure which the external air develops against the carrying surfaces, which act in the same manner as 3% the wings of the usual airplane and, when the necessity arises, also as parachutes. s

In the annexed drawing, which shows by way ofexample and schematically a practical embodiment of the invention: Fig. 1 is a top view of the airship. Fig. 2 is a side view. The Figures 3 and-4 are, cross sections according to the lines X X and Y Y of Fig. 1, respectively.

Figure 3 is a horizontalsection through the longitudinal axis. a

Figure 4 is a vertical longitudinal section of'the tail end drawn to enlarged scale.-

Figure 5 is a vertical cross-section on the re 1. As shown in t e drawing the airship according to the invention substantially consists of an envelope 25 of thin corrugated metal sheet covered by an outer skin 24 which is of thin smooth metal sheet.

. double envelope which constitutes a strongly insulating wall has the general appearance dill of the body of a bird, the mouth of which is seen at 19, the head at 20 and themeck at Said strongly the air contained between the ina rigid or flexible transmisison of any convenient type. Figure 4 shows that said surfaces are carried by a rack 30 engaging a pinion 31 which can be rotated in either direction by means of atransmission 32, so

that the pilot can'shift the rack and said second supporting surfaces longitudinally as desired. The steering surfaces comprise a vertical disc 9 mounted rotatable around a vertical axis 36 passing-through the centre of the discs 3, 3". Axis 36 has positioned on its lower extremity a chain wheel 34 which may in turn be rotated by a common transmission 35. Three vertical discs 5 are mounted under the tail of the machine and the are also rotatable around vertical axes which lie all in the middle plane of the machine. I

The axes 33 carry chain wheels 34, which may be in turn rotated by a common transmission 35.

In order to impart to the gas envelope the necessary resistance its body 23 is mounted upon ring shaped frames 11 conveniently distanced and connected by means of stiffening and supporting spokes 22 toa' central tube 10 extending for the whole longitudinal axis'of the airship. -This tube is closed at the fore end and freely open at the rear end 95 for the purpose which will be explained hereinafter.

In'fact said tube has not only the purpose of acting as a hub for the attachment of the spokes 22 but is also intended to receive in proximity of its fore end, the exhaust gases escaping from the engines placed in the cars 7 The exhaust gases thus flow through conduits 27 to the central tube 10 and heat ternal walls of the envelope and the external wall of the tube 10. The increase of temperature thus obtained causes a rarefaction of the air contained inthe envelope and therefore the production of a certain amount of lifting power which concreased by the fact that both discs 3', 3" and 6', 6" are filled-with a light gas, as helium for instance.

In the'walls of the central tube 10 openings 28 may be provided through which the exhaust gases may escape in the interior 23 of the envelope. In this manner the lifting power can be notably increa'sed'because a higher temperature can be maintained in the interior of the envelope.

To the lifting ower thus obtained is added the dynamica lifting power supplied by the two, or more, circular wings 3 and 3" before mentioned cooperating with the two discs 6', (3" at the rear. The main wings o are kept rotating permanently, either by means of any convenient transmission connected with the propulsion motors, by independent motors 29 or by means of' the action of the wind. This rotation diminishes the resistance to the forward movement and adds to the stability by reason of the gyroscopic effect. By reason of their circular shape the wings 3', 3" will act also con veniently as parachute surfaces. in the case of an involuntary descent.

For steering purposes the action of the tail supporting surfaces 6', 6" can be changed by shifting them longitudinally forwards or rearwards in a manner herein before explained.

The common bottom of the two cars 7 forms also a supplementary wing or sup.-

porting surface which adds to the dynamiw cal lifting .power.

The propulsive power is supplied by two sets of engines symmetrically laced in respect of the central body on card of the two car's, the hulls of which are conveniently shaped, in such manner as to allow'the application of the several propellers 8, 26 to each one of them in the manner shown in the drawing.

Further a not negligible increase of the propelling power is due to the arrangement above mentioned that the exhaust gases escape in the axial direction at the rear end of the longitudinal conduit 10, the reaction of happens in a jet propelled ship.

The airship built and working in the manner above said possesses considerable advantages in comparison of the other airshi )s of the same class already known, and o the airship which has formed the object of a precedent application, ,Serial N. 138,464 of the same inventor, inasmuch as the circular shape of the supporting surfaces, their rotatory motion, and the disc shaped steering surfaces arranged at the top and under the tail of the machine, all contribute to secure better penetration, greater stability and easier steel-ability.

Claims:

1. An airship with mixed sustentation, comprising an envelope containing air, internal combustion engines disposed on either sideof said envelope, a hollow tube extending. along the longitudinal axis of said envelope, a plurality of conduits leading the exhaust gases from said engines through said longitudinal tube ,and a plurality of hollow disc shaped carrying surfaces containing a light gas positioned on said envelope.

2. An airship with mixed sustentation, comprising an envelope containing air, internalcombustion engines disposed on either side of said envelope, a hollow tube extending along the longitudinal axis of said envelope, a plurality of conduits leading the exhaust gases from said en ines through said longitudinal tube, a plum ity of main disc shaped supporting surfaces mounted coaxially on said envelope above said internal combustion en ines and a plurality of auxiliary disc shaped supporting surfaces mounted co-axially above one extremity of said longitudinal tube.

3. 'An airship accordin to claim 2 havin a means for rotating said main disc shape supporting surfaces and a second means for shifting said auxiliary disc shaped support ing surfaces longitudinally.

4. An airshi according to claim 2 having a plurality o vertically mounted steerin discs capable of rotation about a vertica axis an rotating said steering discs.

In testimony whereof I have afiixed my signature at Rome this twenty-seventh day of September, 1927.

'GUIDO TALLEL- a common COIltIOl means 01 SO

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