Double acting slack adjuster

Claim 1

A DOUBLE ACTING SLACK ADJUSTER FOR A BRAKE LINKAGE TO RESIST TENSION LOADS, IN COMBINATION, A BRAKE ADJUSTING ROD HAVING A REMOVABLE JAW ON ONE END AND A MULTIPLE THREAD ON THE OTHER END, A TAKE-UP SPRING AND WASHER SURROUNDING SAID ROD, A LONGITUDINALLY KEYWAY AT SAID JAW END OF SAID ROD, A RATCHET SPIN-NUT THREADED ON SAID ROD, ANTIFRICTION BEARINGS SUPPORTING SAID RACHET SPIN-NUT, A RACHET SPIN-NUT HOUSING HAVING A JAW AT ONE END, A TAKE-UP SPRING HOUSING REMOVABLY ATTACHED TO THE OTHER END OF SAID SPINNUT HOUSING, A KEY IN SAID TAKE-UP SPRING HOUSING SLIDABLY MATCHING SAID KEYWAY IN SAID BRAKE ADJUSTING ROD, A DISHED WASHER BETWEEN SAID ANTIFRICTION BEARING ON THE OTHER END OF SAID TAKE-UP SPRING HOUSING, A PLURALITY OF RACHET DOGS PIVOTALLY MOUNTED ON THE RACHET SPIN-NUT HOUSING AND ALTERNATELY ENGAGEABLE WITH SAID RACHET SPIN-NUT, A COMMAND FINGER RETURN SPRING HOUSING SLIDABLY MOUNTED ON SAID RACHET SPIN-NUT HOUSING, A PLURALITY OF OPPOSITELY ACTING RACHET DOG COMMAND FINGERS SECURED TO SAID COMMAND FINGER RETURN SPRING HOUSING FOR ALTERNATELY ENGAGING AND DISENGAGING SAID RATCHET DOGS, A RATCHET COVER FOR SAID RATCHET DOGS HAVING SPRINGS BIASING THE RATCHET DOGS INTO ENGAGEMENT WITH THE RATCHET SPIN-NUT, A COMMAND TRIGGER SECURED TO SAID CAM FINGER RETURN SPRING HOUSING, A COMMAND LEVER ADAPTED TO BE SECURED TO THE BRAKE LINKAGE AND ENGAGEABLE WITH THE COMMAND TRIGGER FOR ACTUATION OF THE COMMAND FINGER RETURN SPRING HOUSING DURING NORMAL AND OVERTRAVEL BRAKE APPLICATIONS.