Adjustable table leg assembly

A pedestal table having a base, a tabletop, and an adjustable leg assembly extending therebetween;

• said leg assembly comprising an elongated hollow outer tube of substantially uniform cross section throughout its length having inner surfaces defining a cavity of generally rectangular cross section and having an open end;
• a vertically-elongated hollow inner tube telescopingly received in said cavity through said open end of said outer tube and having outer surfaces of generally rectangular outline when said inner tube is viewed in cross section;
• one of said tubes being connected at its upper end to said tabletop and the other of said tubes being connected at its lower end to said base;
• the external cross sectional dimensions of said inner tube being sufficiently smaller than the internal cross sectional dimensions of said outer tube to define a perimetric space therebetween;
• first bearing means disposed in said space and connected to inner surfaces of said outer tube adjacent the open end thereof;
• said means comprising a pair of vertically-elongated bearing blocks of rigid polymeric material and of channel-shaped cross section each having a back portion and a pair of integral flange portions;
• said bearing blocks being arranged with their channels in facing relation, with their respective back portions slidably engaging opposite outer surfaces of said inner tube and with their flange portions slidably engaging a pair of outer surfaces of said inner tube adjacent to said opposite outer surfaces;
• and bearing adjustment means mounted upon said outer tube for shifting at least one of said bearing blocks inwardly within said space to position said inner tube in close sliding engagement with both of said blocks along substantially the full vertical extent thereof.