Gang mold for casting concrete and the like

Claim 1

A GANG MOLD FOR SIMULTANEOUSLY CASTING A PLURALITY OF ELONGATE RELATIVELY THIN SLABS ON EDGE AND IN SIDE-BYSIDE RELATION, COMPRISING A FIXED BASE; A PLURALITY OF ELONGATE RELATIVELY FLAT SPACED PARTITIONS ARRANGED TO BE ENGAGED BY AND TO SHAPE THE MOLDING SUBSTANCE, SAID PARTITIONS ENGAGING AND EXTENDING UPWARD FROM THE BASE IN SIDE-BY-SIDE RELATION; A FIRST SET OF UPRIGHT MOLDING WALLS ARRANGED TO BE ENGAGED BY AND TO CONFINE THE MOLDING SUBSTANCE, SAID WALLS BEING LOCATED AT ONE SET OF OPPOSITE EDGES OF THE BASE, BEING SPACED LATERALLY FROM AND EXTENDING ALONG THE PARTITIONS, A SECOND SET OF UPRIGHT MOLDING WALLS ARRANGED TO BE ENGAGED BY AND TO CONFINE THE MOLDING SUBSTANCE, SAID WALLS BEING DISPOSED AT THE OPPOSITE ENDS OF THE PARTITIONS AND AT ANOTHER SET OF OPPOSITE EDGES OF THE BASE AND EXTENDING UPWARD FROM THE BASE, SAID SECOND SET OF WALLS AND THE SAID PARTITIONS BEING OF SUBSTANTIALLY THE SAME HEIGHT AND THE SAID FIRST SET OF WALLS BEING OF APPRECIABLY LESS HEIGHT, ALL OF SAID WALLS AND THE SAID PARTITIONS TOGETHER WITH THE BASE CONSTITUTING A PLURALITY OF MOLD CAVITIES WHICH THE BASE IS COMMON THE BOTTOMS OF SAID CAVITIES BEING DISPOSED IN A COMMON, HORIZONTAL PLANE FORMED BY THE BASE, SAID CAVITIES BEING ADAPTED FOR RECEIVING THE MOLDING SUBSTANCE AND CASTING SAID SLABS, SAID FIRST SET OF WALLS OF LESSER HEIGHT ENABLING SLABS OF LESSER WIDTH TO BE CAST; AND A PLURALITY OF MOUNTING MEANS DISPOSED WHOLLY BELOW THE TOPS OF THE WALLS, DIRECTLY AND FIXEDLY CONNECTED WITH AND PERMANENTLY SECURED TO THE UPRIGHT WALLS AND TO THE BASE, MOVABLY MOUNTING ALL OF THE SAID UPRIGHT WALLS ON THE BASE AND ENABLING THE WALLS TO BE SHIFTED OUTWARD FULLY AWAY FROM THE PARTITIONS, THEREBY TO PROVIDE COMPLETE CLEARANCE FOR THE SLABS CAST WITHIN THE WALLS AND ALONG THE SAID PARTITIONS, TO ENABLE SAID SLABS TO BE READILY REMOVED, SAID MOUNTING MEANS CONFINING THE SLAB-RELEASING MOVEMENT OF THE WALLS OF EACH SET TO DIRECTIONS WHICH ARE OUTWARD FROM THE BASE AND OPPOSITE; MEANS INCLUDING A MANUALLY DISPLACEABLE MEMBER INTERLOCKED WITH THE SAID WALLS FOR RELEASABLY LOCKING THE WALLS TO EACH OTHER IN UPRIGHT OPERATIVE POSITIONS ADJOINING THE PARTITIONS AND SPACER MEANS ENGAGED WITH THE OUTER PARTITIONS INTERMEDIATE THE TOP AND BOTTOM PORTIONS THEREOF AND SECURED TO THE UPPER PORTIONS OF THE WALLS OF LESSER HEIGHT, SAID SPACER MEANS BACKING THE PARTITIONS AND MAINTAINING UNIFORM THE SAPACING BETWEEN THE SAME AND THE WALLS OF THE LESSER HEIGHT.