System for aligning uneven thickness panel sections

In combination with a support surface over which a plurality of individual side-by-side slightly spaced apart panel members are supported in a floating manner upon a variable thickness layer of attaching material disposed on said surface between the latter and said panel members, a system for alignment of said panel members whereby front surfaces thereof opposite the rear surfaces of the panel members contacting said attaching material may be positioned in substantially coplanar relation, said system including a first pressure member having front and rear sides corresponding to said front and rear surfaces including a central portion and remote portions spaced apart on opposite sides of said central portion, said first pressure member being disposed to the rear of adjacent marginal portions of said panel members with said front side facing forwardly and said remote portions registered with the rear surfaces of said adjacent panel members spaced from said adjacent marginal portions and said central portion registered with the space between said adjacent marginal portions of said adjacent panel members, a second pressure member overlying and including abutment surfaces abuttingly opposing adjacent front surface portions of said adjacent panel member marginal portions, and elongated connecting means operatively connected between said central portion and a central area of said second pressure member, extending through said space and operative to adjustably draw said central portion toward said second pressure member, said remote portions being resiliently supported from said central portion and yieldingly resisting movement thereof, relative to said central portion, in a direction away from said second pressure member, said system being supported entirely from said adjacent panel members.