Tension regulator

Claim 1

IN AN APPARATUS FOR CONTROLLING THE TENSION ON A TRAVELING WEB OF SHEET MATERIAL COMPRISING: (A) A ROLL SUPPORTED IN JOURNALED RELATION, (B) FLUID ACTUATED MEANS TO CONTROL THE ROTATION OF SAID ROLL, (C) A TENSION RESPONSIVE MEMBER, (D) A SUPPORT MEMBER MOUNTING SAID TENSION RESPONSIVE MEMBER, (E) A BASE, (F) A HINGE MEANS HINGEABLY CONNECTING SAID SUPPORT MEMBER WITH SAID BASE, (G) FLUID OUTLET MEANS ON SAID SUPPORT MEMBER, (H) DIAPHRAGM MEANS MOUNTED ON SID BASE, (I) SAID BASE HAVING A FLUID CHAMBER FORMED THEREIN, (J) AN INLET CONDUIT CONNECTED WITH SAID CHAMBER, (K) AN OUTLET CONDUIT LEADING FROM SAID CHAMBER, (L) A FURTHER OUTLET WITHIN SID SUPPORT MEMBER CONNECTED TO THE FLUID OUTLET MEANS ON SAID SUPPORT MEMBER, (M) A UNITARY VALVE WITHIN SAID INLET CONDUIT AND VALVING SAID LAST MENTIONED OUTLET, (N) SAID UNITARY VALVE SEATING IN THE SAME DIRECTION TO CLOSE SAID INLET OF SAID CONDUIT AND SAID OUTLET OF SAID LAST MENTIONED OUTLET, (O) SAID OUTLET CONDUIT CONNECTED WITH A FIRST FLUID RESPONSIVE VALVE MEANS, (P) A SECOND SOURCE OF FLUID SUPPLY CONNECTED TO SAID FIRST FLUID RESPONSIVE VALVE MEANS, (Q) A UNITARY VALVE MEANS IN SAID FIRST FLUID VALVE RESPONSIVE VALVE MEANS, (R) A FURTHER UNITARY VALVE MEMBER WITHIN SAID FIRST VALVE MEANS HAVING TWO VALVE MEMBERS THEREON, (S) A FURTHER FLUID INLET AND A FLUID OUTLET WITHIN SAID FIRST VALVE MEANS, (T) A VALVE SEAT WITHIN SAID FLUID INLET AND A VALVE SEAT IN SAID FLUID OUTLET, (U) A DIAPHRAGM RESPONSIVE MEMBER MOUNTING THE SEAT OF SAID FLUID OUTLET, (V) A MEMBER FORMING A SEAT FOR SAID FLUID INLET, (W) A FURTHER OUTLET TO BLEED AIR PRESSURE FROM SAID FLUID OUTLET LINE, (X) A BOOSTER RELAY CONNECTED IN FLUID RESPONSIVE RELATION TO SAID AIR OUTLET LINE, AND (Y) A FURTHER AIR SUPPLY LINE CONNECTED TO SAID BOOSTER LINE TO BOOST THE PRESSURE A PREDETERMINED AMOUNT TO CONTROL THE DISCHARGE OF SAID AIR SUPPLY PRESSURE INTO A CONDUIT LEADING TO SAID FLUID ACTUATED MEANS TO CONTROL THE ROTATION OF SAID ROLL IN RESPONSE TO THE LOAD APPLIED TO SAID LOAD SUPPORT MEMBER BY SAID TENSION RESPONSIVE MEMBER.