Abstract: A sailing yacht, in addition to its ballast keel (2), has at least one winged keel ( ) which optionally also carries ballast. Both ballast keel (2) and winged keel (1) are mounted to swivel on the hull of the sail ship around an axis aligned essentially in the longitudinal direction of the sail ship. Thus, by swivelling ballast keel (2) the righting moment is changed, for example, increased. By swivelling winged keel (1) its lateral plane part can be changed and thus can be kept large even when the sailing yacht is heeling.

Abstract: A gate girder (5)is provided over the gateway opening of a hangar. To diminish the roof load and working load stressing the gate girder (5), it is supported by at least one girder support (1), which can be combined with a sliding gate plate (1'). On the lower and upper edges of girder support (1), rollers (9, 10) are provided, which are at equal distances from one another. To assure a uniform stress both of the upper support of gate girder (5) and of lower footing (6), in each case pairs of upper rollers (9) are mounted by levers (7) on supports (16), which are guided vertically movable in sliding gate panel (1'). In addition, a freely rotatable roller (15)is mounted on each support (16). A steel cable (18) wound around rollers (15), is placed over each roller (15), which in addition is guided by deflecting rollers (14) mounted freely rotatable on girder support (1), and is fixed with its ends (19) to the girder support (1).

Abstract: A joint having a plurality of bars inserted through apertures into a metal casing adapted to be filled with a grout is disclosed. The casing has projecting members that taper in stepwise fashion from an enlarged portion covering the apertures.

Abstract: In a joint including a plurality of bars linked thereby, the ends of the bars are inserted through apertures in a metal casing which is filled with a hardening grout. The ends of the bars received in the casing have necked-down portions having two tapered members therein which are oriented with their tapering sections facing in opposition and which are pretensioned toward each other by a tensioning member to contact the walls of the necked down portion in flatwise abutting engagement, in opposite sections of the necked down portion.