Mobile rotatable trolley with layers of cupboards - has interengaging projections and recesses and support bands holding cupboards secure

摘要

The mobile trolley cupboard has a square base plate(2) designed to take layers of four identical cupboards(1) with the top layer covered by a plate(8). The square base plate is fitted onto a frame surround(3). The cupboards(1) have projections(5) underneath and corresponding indentations(6) on the upper side with criss-cross reinforcement bands(7) engaging over the outer edges of the cupboards between the layers. The ends of the bands are bent partly up and partly down. The four cupboards forming the lower layer are then held immovable on the base plate by their projections and the reinforcement bands on top.