Cable tensiometer

Claim 1

A TENSIOMETER FOR DETERMINING THE TENSION ON A CABLE, SAID TENSIOMETER COMPRISING: A FRAME PROVIDED WITH A PAIR OF SPECED CABLE ENGAGING DEVICES FOR MOUNTING THE FRAME ON THE CABLE; AN ELONGATED PRESSURE ROD SLIDEABLY CARRIED BY THE FRAME BETWEEN SAID DEVICES AND ENGAGEABLE AT ONE END THEREOF WITH SAID CABLE WHEN SAID DEVICES ENGAGE THE SAME; MEANS INCLUDING A RECIPROCATING TENSION ELEMENT ON THE FRAME FOR FORCING SAID ONE OF THE ROD AGAINST THE CABLE; A SPRING INTERPOSED BETWEEN SAID ELEMENT AND THE OPPOSITE END OF THE ROD; CAM MEANS ENGAGEABLE WITH SAID ELEMENT FOR ADVANCING THE LATTER TOWARD THE ROD TO THEREBY COMPRESS SAID SPRING, SAID CAM MEANS INCLUDING A DISC HAVING AN OUTER PERIPHERY PROVIDING A CAM SURFACE AND MOUNTED ECCENTRICALLY FOR ROTATION ABOUT AN AXIS TRANSVERSE TO THE DIRECTION OF RECIPROCATING MOVEMENT OF SAID ELEMENT, AND A HANDLE SECURED TO AND PROJECTING OUTWARDLY FROM THE PERIPHERY OF THE DISC FOR ROTATING THE SAME; A PAIR OF SPACED STOPS ON SAID FRAME AND ENGAGEABLE WITH SAID HANDLE, SAID STOPS BEING DISPOSED TO LIMIT THE ROTATION OF SAID DISC TO A PREDETERMINED ARC; A RECORD CARD ON SAID FRAME IN SPACED RELATIONSHIP TO SAID ROD; AN ELONGATED ARM PIVOTALLY MOUNTED INTERMEDIATE THE ENDS THEREOF ON SAID FRAME AND OPERABLY COUPLED ADJACENT ONE OF THE ENDS THEREOF WITH SAID ROD, SAID ARM SUBSTANTIALLY SPANNING THE DISTANCE BETWEEN SAID ROD AND SAID RECORD CARD AND HAVING CARD MARKING MEANS THEREON ADJACENT THE OPPOSITE END THEREOF, WHEREBY THE TENSION ON THE CABLE MAY BE INDICATED BY A MARK ON SAID CARD WHEN PRESSURE IS APPLIED TO SAID ROD BY SAID ELEMENT TO FORCE SAID ROD AGAINST SAID CABLE; AND MEANS CARRIED BY SAID ARM AND ENGAGEABLE WITH SAID CARD FOR MAINTAINING THE ARM IN A FIXED POSITION AS THE CARD IS MARKED BY SAID CARD-MARKING MEANS.