Abstract: A closing system, of a hookah (01), has a first closing element (13), which can be attached to a water base (02) of the hookah (01), and a second closing element (16), which includes at least one connecting opening for at least one hookah hose (12) and at least one continuous opening (22) for a connection permeable to air between the water base (02) and a hookah stem (07), arranged directly or indirectly at a second closing element (16). The second closing element (16) has an essentially cylindrical portion (18), which can be inserted into a recess in the first closing element (13) and is complementary in shape and function to the cylindrical portion (18). The cylindrical portion (18) includes an indentation (31) in an area of an outer wall, a displaceable locking element (35) provided in an inner wall of the recess being detachably engageable in the indentation (31).

Abstract: The device for climbing a pair of ropes (1) includes upper and lower clasps (4,6) for clamping each rope and connecting elements for holding a climber, which include a movable or solid seat (7, 12) or harness (23). Each clasp (4,6) has a housing (21); a yoke (3) in the housing (21) provided with an interior space having beveled inclines widening downward; cotters (10) positioned on opposite sides of the rope (1) in the interior space; rollers (11) arranged movably, but securably, between the cotters (10) and the beveled inclines; a compression spring (20) bearing on an upper end of the yoke (3); and a resilient time servo-component (9) arranged at a lower end of the yoke. The resilient time servo-component (9) acts on the yoke so that the clasp (4,6), when relieved, automatically clamps the rope after a predetermined time interval, thus protecting the climber.

Abstract: The device for climbing a pair of ropes (1) includes releasable upper and lower clasps (4,6) for each rope that clamp in response to a downward force acting thereon but relieve when the downward force is relieved and connecting elements for holding a climber, including a seat (7, 12) or harness (23), Each releasable clasp (4,6) has a housing (21); a yoke (3) in the housing (21) provided with an interior space having beveled inclines widening downward; cotters (10) positioned on opposite sides of the rope (1) in the inner space; rollers (11) arranged movably, but securably, between the cotters (10) and the beveled inclines; a compression spring (20) bearing on an upper end of the yoke (3); and a time servo-component (9) arranged at a lower end of the yoke. The time servo-components (9) act on the yokes so that the clasps (4,6), when relieved, automatically clamp the ropes again after a predetermined time interval.