DE222266C

DE222266C -

Info

Publication number: DE222266C
Application number: DENDAT222266D
Authority: DE

Description

Pate ν τ-An Spruch:Godfather ν τ-An saying:

Gleitfläche für Luft- oder Wasserfahrzeuge, dadurch gekennzeichnet, daß eine gewellte, dünne Platte, bei der die Wellenberge und -täler in der Bewegungsrichtung verlaufen, quer zur Bewegungsrichtung auf beiden Seiten mit Bändern verbunden wird, um die Gleitfläche ohne erhebliche Vergrößerung des Bewegungswiderstandes zu versteifen.Sliding surface for aircraft or water vehicles, characterized in that one corrugated, thin plate with the wave crests and valleys in the direction of movement run, connected to the direction of movement on both sides with ribbons is to the sliding surface without significantly increasing the resistance to movement to stiffen.

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims

IMPERIAL

PATENT OFFICE.

The subject of the invention relates to those intended for sliding in air or water Areas, d. H. Kite surfaces, control surfaces, propeller surfaces and the like, and consists in the Creation of surfaces that easily intersect with air or water, which also use the Requirements of strength, lightness, ease of manufacture and weather resistance fulfill.

ίο Such areas are, so far, either full wooden planks and metal sheets or made of transverse and longitudinal ribs with a fabric cover has been manufactured. Both versions suffer from the drawback that they are due to their thickness or the ribs protruding from the surface have a high harmful resistance have that they, made of wood, are not dimensionally stable, difficult from metal profiles can be produced.

The fabric cover also shows great elastic and permanent changes in shape at the wrong place, great surface friction and requires special diagonal reinforcements.
These disadvantages are to be avoided by a new design of the wings, as shown in Fig. 1 in plan, in Fig. 2 in section A-B of FIG. 3 and in Fig. 3 in section according to CD of FIG . A corrugated, thin plate c, in which the wave peaks and valleys run in the direction of movement, receives the main ribs necessary transversely to the direction of movement by bands a fastened on both sides of the waves, so that two bands with the waves in between have a tensile, pressure- , bend-resistant and kink-resistant belts.

In the direction of movement there are only very small resistances and the diagonal reinforcement from one rib to the other is already taken care of by the corrugated plate itself.

The girdle formed in this way can either be used as a rigid main rib of a single-faced kite or serve as a belt of the framework of a two-plane structure that absorbs bar forces.

In the event that the one between the belt straps, as a grating of this Waves acting on the chord are too weak to absorb the transverse forces of the chord, is a reinforcement of the waves at the relevant point by an applied wave band δ intended. The waves can be round or square in shape.