Foundation frame for multipurpose sieves - has main axes including acute angle with sides of adjoining work-surface (HU 28.2.78)

摘要

Each main axis (a-a, b-b) of the foundation frame (20) includes an acute angle alpha with the parallel sides (40, 42) of the adjoining work surface (64) of the actual sieve frame, ie the sieve base (24) and collecting frame (22). No base (24) and collecting frame (22). No bulky corner supports are required since the longitudinal bars (400, 42) and support walls can be attached directly to the outside of the frame. The parts of the work face which project beyond the foundation frame can be divided into any number of channel chuts (60, 62) whose cross-sectional area can be increased by the space formed in the absence of the corner supports.