Abstract: Trim compensation for a hovercraft having two engines (2,3) with flow outlet apertures. The two engines (2,3) are arranged laterally at the stern of the hovercraft to generate air jets for forward motion. The hovercraft also includes a compressor to generate an air cushion beneath the hovercraft. The trim compensation includes a tail plane arrangement located in the air jets in the two engines for directional control of the hovercraft by deflection of the air jets. The tail plane arrangement consists of a negatively arranged V-plane (7) with a middle upper section from which extends stabilizer surfaces (9,10) at both sides in a downward direction. The stabilizer surfaces (9, 10) are provided with rudder elements (11, 12) which are swingable in the same or opposite direction to deflect the air jets. The stabilizer surfaces (9, 10) and the rudder elements (11, 12) run centrally across the flow outlet apertures of the engines (2, 3).

Abstract: A steering device for a hovercraft having two driving engines (2, 3), a back skirt (5), a finger skirt (6) and a jet deflection device located downstream of the two driving engines (2, 3). The jet deflection device includes a negative Vee stream deflector (7) and rudder elements (11, 12) which can be operated in opposite directions. The Vee stream deflector (7) is arranged behind the driving engines (2, 3) in such a way that each driving engine (2, 3) is assigned a portion of the Vee stream deflector (7) having the rudder element (11; 12). The rudder elements (11; 12) run diagonally through an axis of symmetry of the respective driving engine (2, 3). The Vee stream deflector (7) further includes a middle section which acts as a stabilizing nose (8).

Abstract: A static trimmer for a hovercraft is provided for shifting the center of buoyancy of an air-cushion of the hovercraft in relation to the center of gravity. The static trimmer includes a peripheral elastic skirt (2) having a plurality of skirt segments (5) each having a back skirt (3) and a finger skirt (4). The peripheral elastic skirt (2) further includes at least four independent lateral sections (6, 7, 8, 9) which can be moved in an inward or outward direction independently of each other. The static trimmer further includes at least two tension cables (15, 16) disposed in each independent lateral section (6, 7, 8, 9) for moving each finger skirt (4) of each of the plurality of skirt segments (5). Each of the tension cables (15, 16) further include a first partial tension cable and a second partial tension cable.

Abstract: An article for mixing a tray holder has a generally rectangular side panel having upper and lower edges and inner and outer faces, a generally rectangular roof panel projecting generally perpendicular from the inner face of the side panel along the upper edge thereof, and a generally rectangular floor panel projecting generally perpendicular from the inner face of the side panel along the lower edge thereof. These panels are formed along a plane perpendicularly to and bisecting all panels with a weakened region and the roof and floor panels have straight outer edges remote from the side panel that are complementarily shaped to opposite sides of the plane. Thus according to the invention the article can be subdivided into two complementary and interfitting pieces along the plane adn joined together to make a half-depth holder by bonding together the complementary outer edges. A full-depth holder can be made by bonding together the outer edges of two such articles.

Abstract: A muffle oven for the heating of foodstuffs has a closed housing with a treatment chamber separated by a perforated partition from an air-circulating compartment which forms rear and lateral air spaces surrounding that chamber on three sides. A radial blower, driven by an external motor located at an intermediate level in the rear air space, is bracketed by an upper and a lower baffle each having two aerodynamic deflecting surfaces converging at a flow-dividing edge which cause the air discharged by the blower to spread symmetrically into the lateral air spaces after passing two sets of heating elements. The flow-dividing edges of the two baffles are relatively offset and lie on opposite sides of a vertical axial plane of the rotor so as to point toward the rotor at locations where the flow of the discharged air is essentially vertical. The heated air, after entering the treatment chamber from the sides, is returned to an axial intake of the blower.