Educational device for teaching time

Claim 1

AN EDUCATIONAL DEVICE FOR TEACHING TIME COMPRISING IN COMBINATION LOWERMOST, INTERMEDIATE AND UPPERMOST DISC-SHAPED ELEMENTS AXIALLY MOUNTED FOR A PLURALITY OF RELATIVELY ROTATABLE CORRELATABLE TIME-TELLING RELATIONSHIPS, THE LOWERMOST ELEMENT BEING OPAQUE, THE INTERMEDIATE ELEMENT BEING TRANSPORTED EXCEPT FOR ITS PERIPHERAL PORTION AND THE UPPERMOST ELEMENT HAVING A CENTRAL TRANSPARENT PORTION, THE LOWERMOST ELEMENT HAVING SPACED MINUTE HAND WORDING INDICIA THEREON NEAR ITS OUTER EDGE AND DISPOSED THEREON RADIALLY INWARDLY IN SUCCESSION: A CIRCULAR BAND OF SPACED TIME DESIGNATIONS INDICATING IN 5-MINUTE WORDING TIME INTERVALS THE RELATIONSHIP TO, BEFORE AND AFTER ANY HOUR OF THE DAY AND WHICH TIME DESIGNATIONS ARE VISIBLE THROUGH AN ARCUATE CUT-OUT IN THE UPPERMOST ELEMENT IN THE 6 O''CLOCK POSITION THEREOF, AN OFFSET CIRCULAR BAND OF TIME DESIGNATING NUMERALS FROM 00 TO 55 IN 5-MINUTE INTERVALS VISIBLE THROUGH AN ARCUATE CUT-OUT IN THE UPPERMOST ELEMENT IN THE 12 O''CLOCK POSITION, A CIRCULAR BAND BEARING QUARTER- AND HALF-HOUR WORDING DESIGNATIONS SPACED THEREON AND VISIBLE THROUGH AN ARCUATE CUT-OUT IN THE UPPERMOST ELEMENT RADIALLY INWARDLY OF THE SAID ARCUATE CUT-OUT IN THE 12 O''CLOCK POSITION, AND A MINUTE HAND FIXED IN POSITION THEREON AND EXTENDING RADIALLY OUTWARDLY FROM THE AXIAL MOUNTING AND MOVABLE WITH THE ELEMENT TO POINT TO A SELECTED TIME AND SAID MINUTE HAND BEING VISIBLE THROUGH THE TRANSPARENT PORTIONS THE INTERMEDIATE AND UPPERMOST ELEMENTS, THE INTERMEDIATE ELEMENT HAVING EQUISPACED AROUND ITS PERIPHERAL PORTION EACH OF THE TWELVE HOURS IN WORDING AND DIFFERING BY ONE HOUR FROM THE PRECEEDING AND SUCCEEDING WORDING AND HAVING ITS OUTER EDGE SHAPED FOR EASE OF MANIPULATION, RADIALLY INWARDLY THEREOF PAIRS OF RADIALLY ALIGNED HOURLY TIME DESIGNATING NUMERICAL INDICIA OF WHICH THE INNER ONE OF EACH PAIR IS ONE HOUR LESS THAN THE OUTER ONE OF EACH PAIR, THE OUTER ONE OF EACH PAIR BEING VISIBLE THROUGH THE SAME ARCUATE 12 O''CLOCK CUT-OUT AS THE 00 TO 30 NUMERALS OF THE 00 TO 55 NUMERALS AFORESAID AND THE INNER ONE OF EACH PAIR BEING VISIBLE THROUGH A 12 O''CLOCK ARCUATE CUT-OUT IN THE UPPERMOST ELEMENT RADIALLY BETWEEN THE TWO 12 O''CLOCK ARCUATE CUT-OUTS AFORESAID, THE HOURLY WORDING BEING VISIBLE THROUGH AN ARCUATE CUTOUT IN THE UPPERMOST ELEMENT IN THE 6 O''CLOCK POSITION DISPOSED RADIALLY OUTWARDLY OF THE AFORESAID 6 O''CLOCK CUT-OUT THROUGH WHICH THE VISIBLE 5-MINUTE TIME INTERVALS INDICIA OF THE LOWERMOST ELEMENT, AN HOUR HAND FIXED IN POSITION THEREON AND EXTENDING RADIALLY OUTWARDLY FROM THE AXIAL MOUNTING AND MOVABLE WITH THE ELEMENT TO POINT TO A SELECTED TIME AND SAID HOUR HAND BEING VISIBLE THROUGH THE TRANSPARENT PORTION OF THE UPPERMOST ELEMENT, AND THE UPPERMOST ELEMENT BEING SMALLER IN DIAMETER THAN THE LOWERMOST AND INTERMEDIATE ELEMENTS AND THE CENTRAL TRANSPARENT CIRCULAR PORTION HAVING CIRCUMFERENTIALL THEREAROUND NUMERAL AND RADIAL LINE CLOCK INDICIA TO WHICH SAID MINUTE AND HOUR HANDS POINT FOR TIME-TELLING,