Abstract: Modular elements for composing disassemblable walls, cabinets, writing tables and other pieces of furniture comprising:panels;box-like metal sections provided on three surfaces thereof with a groove defining a longitudinal slot of a width lower than that of the groove while from the remaining surface, anchoring means extend outwardly to connect each section to a panel;column devices having, at its ends, pieces to be received inside the central grooves of said sections and cooperating with means for locking said pieces in its engaged position, said column housing a hollow tubular pivot member, into which passes a threaded rod having a upper control head and which at its lower end rests on an adjustable ground engaging foot;cylindrical rods for the connection of wall panels, in coplanar relationship;expansion screws to be inserted into the front grooves of the sections for carrying hooks, and the like;hinge devices for the connection of adjacent wall panels at right angles and to allow said panels to be fold on

Abstract: A table comprising a vertical column provided at the upper end with a plurality of radially outwardly directed arm members for supporting the table top and at the lower end with radially outwardly directed foot members detachably connected thereto said arm and foot members having their inner cylinder sector-like portions at least the end portions of the column being hollow and the inner sector-like elements of the arm and foot members are dimensioned to form together respectively at least a part of a hollow cylindrical body adapted to be received at least partially inside one of said hollow end portions of the column respectively, sector-like members of different angular amplitudes being provided to be arranged between said inner sector-like elements of the arm members and foot members respectively, which fill the space therebetween when necessary, an expansion locking device being coaxially mounted inside the hole defined in combination by said sector-like elements adapted to apply a radial pressure on said

Abstract: A device for adjusting the height of the seat of an arm-chair and the like having a vertical hollow shaft fixed to the seat and telescopically received into a hollow base column and comprising a coaxial rod slidably received into said hollow shaft, on the upper end of which acts a control lever, said hollow shaft having an outer diameter smaller than the inner one of said column which at its upper part is provided with an inner bushing to support and guide said shaft while at its lower portion it carries a plug-like member having a conical outer surface and through which passes said rod, at the lower end of which is mounted a coaxial cylindric bowl having an outer diameter smaller than the inner diameter of said column and in which is arranged a crown of at least three radial holes to house small metal balls so that through said holes said balls can partially project outwardly, a first helical spring being mounted between said bowl and said plug member, while a second helical spring is mounted between an inte