Three-way adjustable timing device

Claim 1

A TIMING DEVICE COMPRISING A PAIR OF BELLOWS, BELLOWS OPERATING MEANS OPERABLE SELECTIVELY FOR CONCURRENTLY EXPANDING ONE BELLOWS AND COMPRISING IN THE OTHER BELLOWS, AND FOR CONCURRENTLY COMPRESSING SAID ONE BELLOWS AND EXPANDING SAID OTHER BELLOWS, SAID BELLOWS HAVING EXHAUST PORTS, RESPECTIVELY, VALVE MEANS FOR THE PORTS, RESPECTIVELY, SETTABLE MEANS CONNECTED TO THE VALVE MEANS AND OPERABLE INDEPENDENTLY OF THE BELLOWS OPERATING MEANS AND OF THE CONDITION OF THE BELLOWS RELATIVE TO EACH OTHER FOR SETTING THE VALVE MEANS IN TWO OPERATIVE POSITIONS IN ONE OF WHICH ONE PORT IS IN OPEN CONDITION AND THE OTHER IN SEALED CONDITION, AND IN THE OTHER OF WHICH SAID ONE PORT IS IN SEALED CONDITION AND THE OTHER PORT IS IN OPEN CONDITION, EACH BELLOWS HAVING A RESTRICTED DISCHARGE PASSAGE WITH SMALLER FLOW CAPACITY THAN ITS EXHAUST PORT, AND MEANS FOR CONNECTING THE OPERATING MEANS TO EQUIPMENT TO BE TIMED.