Fluid pressure operated clutch

Claim 1

IN A CLUTCH SYSTEM: A HOUSING; A DIAPHRAGM THEREIN SEPARATING SAID HOUSING INTO CHAMBERS; A FIRST SHAFT MEANS CONNECTED WITH ONE END OF SAID HOUSING AND EXTENDING OUTWARDLY THEREFROM; MEANS TO BE DRIVEN CONNECTED WITH SAID FIRST SHAFT MEANS; A SECOND SHAFT MEANS; BEARING SURFACE MEANS JOURNALING SAID SECON SHAFT MEANS ON SAID FIRST SHAFT MEANS, AND MOUNTING SAID SHAFT MEANS FOR RELATIVE AXIAL MOVEMENTS; CONFRONTING CLUTCH MEMBERS CONNECTED WITH SAID FIRST AND SECOND SHAFT MEANS AXIALLY OUTWARD OF SAID HOUSING; MOTION TRANSMISSION MEANS ADJACENT SAID DIAPHRAGM, EXTENDING THROUG ONE OF SAID CHAMBERS AND SAID HOUSING TO ACTUATE SAID CLUTCH MEMBERS INTO ENGAGEMENT WHEN THE DIAPHRAGM IS MOVED IN ONE DIRECTION; PINION MEANS ON SAID SECOND SHAFT MEANS; RACK GEAR MEANS IN MESH WITH SAID PINION MANS; FLUID PRESSURE OPERATED MEANS CONNECTED WITH AND MOVING SAID RACK MEANS IN ONE DIRECTION TO DRIVE SAID PINION MEANS; MEANS FOR INTRODUCING AIR UNDER PRESSURE INTO THE OTHER CHAMBER OF SAID HOUSING SIMULTANEOUSLY WITH MOVEMENT OF SAID RACK GEAR MEANS TO ACTUATE SAID DIAPHRAGM AND MOTION TRANSMISSION MEANS AND MOVE THE CLUTCH MEMBER ON ONE SHAFT MEANS AXIALLY INTO DRIVING ENGAGEMENT WITH THE CLUTCH MEMBER ON THE OTHER SHAFT MEANS WHEN THE RACK MEANS IS MOVED IN ONE DIRECTION; AN MEANS ACTUATED AUTOMATICALLY WHEN THE RACK REACHES SUBSTANTIALLY THE END OF ITS TRAVEL IN ONE DIRECTION OPERATIVELY CONNECTED TO BLEED AIR FROM SAID OTHER CHAMBER TO PERMIT SAID PINION MEANS TO SPIN FREELY WHEN THE RACK MEANS IS MOVED IN THE OTHER DIRECTION.