Base support plate for upright frame for a screen has a block shape with a slotted grip for the bottom flange of the frame and with a stacking design for added ballast

摘要

A base support plate for the upright frame for a screen has a block shape (2) with one or more side slots (30, 30A) with coplanar side grooves (36) into which are slid the bottom flanges of the vertical supports (34). The block has slot (12) which serves as a carrying handle and at least two vertical holes (42) for securing the block onto the support surface (P) with threaded fasteners. The block sits on four elastic pad feet and has four corresponding sockets on the top surface to take the feet of upper blocks in a simple stacked array.