Work control and scheduling device

Claim 1

IN A WORK CHART: (A) A FRAME HAVING A BACK PLATE, TOP AND BOTTOM PLATES EXTENDING NORMAL TO THE BACK PLATE ALONG OPPOSITE EDGES THEREOF, AN END EXTENDING NORMAL TO THE BACK PLATE BETWEEN THE TOP AND BOTTOM PLATES, AND A FRONT PLATE EXTENDING BETWEEN THE SAID TOP AND BOTTOM PLATES AND JOINED TO THE SAID END, SAID FRONT PLATE BEING OF LESSER LENGTH THAN THE SAID BACK PLATE WHEREBY TO PROVIDE A GENERALLY L-SHAPED STRUCTURE, SAID FRONT PLATE, END AND BACK PLATE TOGETHER PROVIDING A RECEPTACLE; (B) A SEPARATE WORK-DEPICTING UNIT ADAPTED TO BE PARTIALLY FITTED INTO SAID RECEPTACLE, SAID WORK-DEPICTING UNIT INCLUDING A PLANAR SUPPORT FOR A CHART, A PAIR OF BRACKETS AT EITHER END OF SAID PLANAR SUPPORT, A PAIR OF SPACED ROLLERS MOUNTED IN EACH OF THE SAID PAIR OF BRACKETS AT EACH END OF THE SAID PLANAR SUPPORT, A CHART SECURED TO ONE SIDE OF THE PLANAR SUPPORT, AND A FLEXIBLE TRANSPARENT SLEEVE TRAINED ABOUT THE ROLLERS AND COVERING THE FRONT OF THE SAID CHART, SAID WORK-DEPICTING UNIT BEING PARTIALLY INSERTED IN THE SAID RECEPTACLE FORMED BY THE SAID BACK, END AND FRONT PLATE OF THE SAID FRAME WHEREBY ONE OF THE SAID ROLLERS IS ENCLOSED WITHIN THE SAID RECEPTACLE AND THE OTHER OF THE SAID ROLLERS REMAINS EXPOSED.