Slack adjuster

Claim 1

AN AUTOMATIC SLACK ADJUSTER FOR BRAKES COMPRISING AN ELONGATED HOUSING, A FRONT ROD PART EXTENDING INTO SAID HOUSING THROUGH THE FRONT END THEREOF, A REAR ROD PART EXTENDING INTO SAID HOUSING THROUGH THE REAR END THEREOF, SAID REAR ROD PART BEING CONSTRUCTED WITH A NONSELF-LOCKING SCREW THREAD, BOTH OF SAID ROD PARTS BEING SLIDABLY MOUNTED WITH RESPECT TO SAID HOUSING A FEEDING NUT AND A LOCKING NUT CARRIED BY SAID SCREW THREAD OF SAID REAR ROD PART, SPRING INFLUENCED SLIDING MEANS IN SAID HOUSING FOR REARWARDLY CLUTCHABLY ENGAGING SAID LOCKING NUT UP TO A CERTAIN VALUE OF THE BRAKING FORCE TRANSMITTED THROUGH THE SLACK ADJUSTER AND FORWARDLY CLUTCHABLY ENGAGING SAID LOCKING NUT AT BRAKING FORCES ABOVE SAID CERTAIN VALUE, AND FOR LOCKING SAID HOUSING AGAINST ROTATION RELATIVE TO SAID FRONT ROD PART AT BRAKING FORCES BELOW A CERTAIN VALUE AT LEAST AS HIGH AS SAID FIRST MENTIONED VALUE, SAID SPRING INFLUENCED SLIDING MEANS HAVING A LIMITED AXIAL PLAY RELATIVE TO SAID FRONT ROD PART, TOOTH MEANS CLUTCHABLY CONNECTING SAID FEEDING NUT AND SAID HOUSING IN THE NEUTRAL POSITION OF THE SLACK ADJUSTER, A TELESCOPICALLY COMPRESSIBLE SLEEVE MOUNTED BETWEEN SAID FEEDING NUT AND SAID LOCKING NUT, A BIASED SPRING IN SAID TELESCOPICALLY COMPRESSIBLE SLEEVE, THE LATTER HAVING AN AXIAL PLAY RELATIVE TO A SHOULDER OF SAID HOUSING SLIGHTLY GREATER THAN THE OVERLAPPING OF SAID TOOTH MEANS, AND MEANS FOR DETAINING SAID HOUSING UPON A CERTAIN TRAVEL THEREOF FROM ITS NEUTRAL POSITION.