Abstract: Chair comprising a seat part and a back part that are hinged together, the back part being movable relative to the seat part between two extreme positions, one of the parts being provided with a toothed segment having teeth shaped like sawteeth, the other part being provided with a catch which engages with the toothed segment to fix the latter in various positions at least against a movement in one direction, and means that press the catch against the toothed segment, the toothed segment containing a cam that engages with a cam follower connected to the catch, the cam pressing the catch away from the toothed segment in one extreme position of the back part, holding devices being present to retain the catch in this position and release devices that release the catch from the holding devices in the other extreme position of the back part.In addition, means may be present that can be actuated by hand to release the catch from the toothed segment in any desired position of the back.

Abstract: Folding table consisting of a tabletop and a support, which tabletop is composed of two tabletop parts that are connected to one another in such a manner that they can pivot between two extreme positions, the tabletop parts lying in one plane and constituting the tabletop in the first extreme position and the tabletop parts being positioned parallel to one another, their bottom sides facing one another, in the second extreme position, each tabletop part having a rim that is complementary with a rim of the other tabletop part and each tabletop part with the rim part belonging to this complementary rim being connected to a bridge so that it can pivot around an axis parallel to the tabletop, the two axes being parallel to one another, the bottom side of each tabletop part being provided with a toothed wheel segment near the complementary rim, the teeth of which toothed wheel segments are in mesh with one another, and the axis of rotation of each tabletop part coinciding with the axis of the toothed wheel segment

Abstract: Folding table consisting of a tabletop and support, which tabletop is composed of two tabletop parts that are connected to one another in a manner that they can pivot between two extreme positions, the tabletop parts lying in one plane and constituting the tabletop in the first extreme position and the tabletop parts positioned parallel to one another, their bottom sides facing one another, in the second extreme position, the support consisting of two leg structures, each leg structure connected to a tabletop part in a manner that it can pivot around an axis parallel to the tabletop, and capable of assuming a normal position perpendicular to the plane of the tabletop in the first extreme position of the tabletop parts, and the leg structures positioned between the tabletop parts in the second extreme position of these parts, each leg structure comprising two leg parts which are connected to one another via a hinge whose axis of rotation in the normal position of the leg structure is perpendicular to the plane