Rotary tilt base for video terminal

Claim 1

A base for supporting a video terminal on a supporting surface, with said base having front and back portions and said terminal having a display screen which is situtated adjacent said front portion when said terminal is resting on said base, said base comprising an upper member, a lower member and connecting means, wherein said lower member has a downwardly concave section, said upper member has a correspondingly shaped downwardly convex section which is slidably stituated generally within said concave section of said lower member, said lower member rests generally adjacent said external supporting surface and said upper member is situated generally adjacent and beneath said video terminal, and said connecting means includes slotted guide means and fastening means which together serve to connect said lower member to said upper member in a manner permitting pivotable movement of said upper member about a predetermined tilt axis which is parallel to said supporting surface and unlimited rotational movement about a rotational axis which is perpendicular to and rotatable about said tilt axis through a predetermined arc, wherein said guide means is an upwardly extending projection located on and secured to the top surface of the downwardly convex section of said upper member, said projection having a pair of generally parallel side surfaces and a top surface which includes an elongated slot with the direction of said slot establishing the direction of said tilt axis and the length of said slot generally establishing said predetermined arc, and wherein said fastening means includes a fastening member and a generally U-shaped bracket having an apertured base section and a pair of downwardly extending legs, said base section being disposed over and adjacent said top surface of said guide means and said legs being located adjacent respective side surfaces of said guide means, with said bracket serving to insure that said fastening member is centered within said slot irrespective of its longitudinal position within said slot, the angle of tilt of said base being established by longitudinally positioning a portion of said fastening means within said slot.