Articulated crossarm assembly

Claim 1

IN COMBINATION WITH AN UPRIGHT POWER LINE SUPPORT, A CROSSARM ASSEMBLY COMPRISING: A PAIR OF ELONGATED, JUXTAPOSED ARMS EXTENDING OUTWARDLY FROM SAID SUPPORT IN A COMMON, GENERALLY HORIZONTALLY DISPOSED PLANE, AND EACH HAVING A PAIR OF OPPOSED, INNER AND OUTER ENDS AND CHARACTERIZED BY SUBSTANTIALLY GREATER LOAD CARRYING CAPACITY IN TENSION THAN IN COMPRESSION; A PAIR OF HORIZONTALLY SPACED ARM MOUNTS SECURED TO SAID SUPPORT AND EACH HAVING A PIVOT SUPPORTING THE INNER END OF A RESPECTIVE ARM AND DEFINING A VERTICAL PIVOTAL AXIS THROUGH SAID INNER END; AN ELONGATED RIGID MEMBER EXTENDING DOWNWARDLY AND OUTWARDLY FROM SAID SUPPORT AND HAVING A PAIR OF OPPOSED, INNER AND OUTER EXTREMITIES; A DEFORMABLE FASTENER ATTACHING SAID INNER EXTREMITY TO SAID SAID SUPPORT ABOVE SAID ARMS AT A LOCATION ON THE SUPPORT LYING BETWEEN A PAIR OF VERTICAL PLANES EXTENDING THROUGH RESPECTIVE ARMS; SAID INNER EXTREMITY BEING PROVIDED WITH STRUCTURE IN ENGAGEMENT WITH SAID FASTENER PREVENTING SUBSTANTIAL HORIZONTAL SWINGING OF THE MEMBER ABOUT THE FASTENER;