Schedule display board

Claim 1

A SCHEDULE DISPLAY BOARD COMPRISING BASE MEANS HAVING SUBSTANTIALLY PARALLEL OPPOSTE SIDES, SUBSTANTIALLY PARALLEL GUIDEWAYS CARRIED BY SAID BASE MEANS RESPECTIVELY ADJACENT SAID OPPOSITE SIDES, A PLURALITY OF SIMILAR ELONGATED INSERT BARS ARRANGED TO HAVE A SCHEDULE APPLIED TO ONE SURFACE OF EACH BAR AND OF SUFFICIENT LENGTH TO EXTEND REMOVABLY AND SLIDABLY TRANSVERSELY BETWEEN SAID GUIDE MEANS FOR SUPPORT ADJACENT SAID BASE MEANS AND ARRANGED WITH THE SCHEDULE DISPLAYING SURFACE OUTERMOST, ONE OF SAID GUIDEWAYS BEING PERMANENTLY OUTWARDLY OPEN FROM THE SIDE OF SAID BASE MEANS TO WHICH IT IS CONNECTED AND OPERABLE TO PERMIT THE READY INSERTION AND REMOVAL OF SAID BARS THERETHROUGH TO AND FROM PARALLEL RELATIONSHIP BETWEEN ADJACENT PARALLEL BARS EXTENDING BETWEEN SAID GUIDEWAYS AND SAID BARS BEING SLIDABLY MOVABLE READILY WITHIN SAID GUIDEWAYS IN A DIRECTION LONGITUDINALLY OF SAID GUIDEWAYS, AND RESILIENTLY URGED FOLLOWER MEANS MOVABLY MOUNTED AT ONE END OF SAID BASE MEANS FOR MOVEMENT AGAINST THE LOWERMOST BAR IN A DIRECTION PARALLEL TO SAID BARS AND TOWARD THE OPPOSITE END OF SAID BASE MEANS AND OPERABLE TO RETAIN THE BARS REMAINING IN SAID GUIDEWAYS IN ENGAGEMENT WITH EACH OTHER AFTER THE REMOVAL OF ONE OF SAID BARS FROM SAID GUIDEWAYS.