Computing scale

Claim 1

IN A WEIGHING SCALE OF THE CHARACTER DESCRIBED HAVING A HOUSING, A DRUM CHART HAVING INDICIA ON ONE SURFACE THEREOF, MEANS SUPPORTING SAID CHART FOR ROTATION IN SAID HOUSING IN PROPORTION TO WEIGHT APPLIED TO THE SCALE, SAID HOUSING HAVING A NARROW WINDOW IN A PORTION THEREOF LOCATED INTERMEDIATE THE VERTICAL AND HORIZONTAL CENTER LINES THEREOF AND EXTENDING PARALLEL WITH SAID CHART TO PROVIDE FOR VIEWING OF THE PORTION OF SAID CHART ALIGNED THERWITH ALONG A NORMAL PATH OF VIEW EXTENDING DOWNWARDLY AT AN ANGLE APPROXIMATELY INTERMEDIATE THE HORIZONTAL AND VERTICAL, A LENS SUPPORTED IN SAID WINDOW FOR MAGNIFYING THE INDICIA ON SAID CHART, SAID LENS BEING POSITIONED IN AN INCLINED PLANE SUBSTANTIALLY PERPENDICULAR TO SAID PATH OF VIEW TO LOCATE THE OPTICAL AXIS THEREOF SUBSTANTIALLY IN SAID NORMAL PATH OF VIEW, AND A LIGHT SOURCE MOUNTED WITHIN SAID HOUSING IN POSITION TO ILLUMINATE THE PORTION OF SAID CHART ALIGNED WITH SAID WINDOW AND SAID LENS, THE COMBINATION OF MEANS FOR MINIMIZING INTERFERENCE WITH VIEWING OF SAID CHART BY LIGHT EMANATING FROM OUTSIDE SAID HOUSING, COMPRISING HOOD MEANS MOUNTED ON SAID HOUSING AND EXTENDING FROM BEHIND SAID LENS UPWARD AND FORWARD WITH RESPECT TO SAID LENS IN SURROUNDING AND OVERHANGING RELATION WITH SAID LENS TO SHIELD SAID LENS FROM THE DIRECT PATH OF LIGHT EMANATING FROM LIGHT SOURCES POSITIONED AT HIGHER LEVELS THAN THE SCALE IN THE ROOM WHEREIN THE SCALE IS USED, SAID HOOD MEANS HAVING AN OPENING EXTENDING ALONG THE SIDE THEREOF TO AFFORD DIRECT VIEWING OF SAID CHART THROUGH SAID LENS BY A USER ALONG SAID NORMAL PATH OF VIEW, AND A SUBSTANTIALLY FLAT SHEET OF TRANSPARENT MATERIAL MOUNTED ON SUBSTANTIALLY VERTICAL POSITION WITHIN SAID OPENING IN SAID HOOD MEANS TO REFLECT AWAY FROM SAID USER THE LIGHT EMANATING FROM WITHIN THE ROOM AND TRAVELING TOWARD SAID OPENING.