Interval timer for providing a fixed and locked timed cycle

Abstract

Abstract AN INTERVAL TIMER FOR PROVIDING A FIXED, TIMED CYCLE WHICH, WHEN SET, CANNOT BE CHANGED IN FUNCTION OR TIMING INCLUDES A SEGMENTAL GEAR MANUALLY ROTATED IN ONE DIRECTION BY A SETTING SHAFT FROM AN UNSET POSITION TO A SET POSITION. THE SEGMENTAL GEAR HAS A TOOTHED SEGMENT AND A MULTILATED SEGMENT EQUAL IN ANGULAR EXTENT TO THE ANGULAR EXTENT OF THE MANUAL ROTATION FROM THE UNSET TO THE SET POSITION. FIRST AND SECOND PINIONS ARE PROVIDED AND CONTINUOUSLY MESH WITH AN IDLER GEAR. THE SECOND PINION IS CONTINUOUSLY ROTATED BY A DRIVING MOTOR THROUGH A SUITABLE GEAR TRAIN, THEREBY CONTINUOUSLY DRIVING THE IDLER GEAR TRAIN, THEREBY CONTINUOUSLY DRIVING THE ROTATABLE IN THE MUTILATED SEGMENT OF TEH SEGMENTAL GEAR WHEN IT IS IN ITS UNSET POSITION. MANUAL ROTATION OF THE SEGMENTAL GEAR AWAY FROM ITS UNSET POSITION TOWARD ITS SET POSITION MOVES THE TOOTHED SEGMENT INTO ALIGNMENT WITH THE SECOND PINION. THE SECOND PINION IS MOUNTED ON A SPRING BIASED LEVER FOR PIVOTAL MOVEMENT TOWARD AND AWAY FROM THE TOOTHED SEGMENT, THUS PERMITTING TOTHED SEGMENT TO RATCHED PAST THE SECOND PINION DURING MANUAL ROTATION OF THE SEGMENTAL GEAR FROM THE UNSET TO THE SET POSITION. UPON REACHING THE SET POSITION, THE TOOTHED SEGMENT MOVES INTO MESH WITH THE FIRST PINION, WHICH IS MAINTAINED IN MESH THEREWITH, THEREBY INHIBITING FURTHER MANUAL ROTATION OF THE SEGMENTAL GEAR IN EITHER DIRECTION. THE SEGMENTAL GEAR THEREAFTER IS DRIVEN IN THE SAME ONE DIRECTION TOWARD ITS UNSET POSITION, FIRST BY BOTH PINIONS AND FINALLY BY ONLY THE FIRST PINION.

Inventors

• 👤 Gerhard K Losert

Bibliographic Details