Abstract: Chair (1) with tilt mechanism for synchronous adjustment of a seat (4) and a backrest (6) which are swivel mounted on a base (8), from a normal working position in which the seat (4) assumes a horizontal position and the backrest (6) a vertical position, into positions with a different inclination of the seat (4) and backrest (6) and with height adjustment for the seat and backrest. The position of the seat (4) and backrest (6), as adjusted by a catch mechanism, is released easily by pulling up an actuation lever attached laterally under a seat support (3) on the base (8) of the swivel chair (1) and by leaning lightly against the backrest (6) to release it from a restoration spring (16) of the tilt mechanism acting on the seat support (3) with the seat (4) and the back (6). In order to adjust the desired normal working position or a more or less inclined position of the seat (4) and backrest (6), the actuation lever need simply be pressed down.

Abstract: A stretcher or crossrib (1) for seating furniture, such as chairs, and for tables has four rib parts (4) of solid wood, preferably beech wood, in the form of flat pieces arranged at an angle to one another. Their butt ends (5) are interconnected by tenons (6) into a cross with different spacing angles .alpha., .beta. and are glued. A connecting element 7 is used to hold the butt ends (5) of the four rib parts (4) form-fittingly. Connecting element (7) is composed of a top part (8) and a bottom part (9). Top part (8) and bottom part (9) of connecting element (7) hold butt ends (5) of rib parts (4) in corresponding holes (10) form-fittingly and are screwed to rib parts (4). Top part (8) and bottom part (9) of connecting element (7) can be gussets.