Patent ID: 8806836

Claim:
A building anchor system comprising: a pair of elongate anchor rods ( 1 , 2 ), an anchor rod coupling joint ( 3 ) for joining the anchor rods end-on-end, the anchor rod coupling joint comprising (a) a sleeve ( 4 , 5 , 6 & 7 ) for connection to an end of one of the anchor rods ( 1 , (b) a slideable arm ( 8 ) receivable in the sleeve for connection to an end of the other anchor rod ( 2 ), (c) a closed slot ( 14 ) within the arm or sleeve for slideably receiving a free end of a stop member ( 13 ) by which movement of the anchor rods along a major axis of the anchor rods is possible to the extent allowed by a length of the slot, and (d) frictional adjustment means ( 6 , 7 ) acting between the arm and the sleeve by which the arm and the sleeve are joined and by which the force required to move the arm and the sleeve with respect to each other can be selectively varied, wherein the anchor rod coupling joint ( 3 ) is in the form of a base plate ( 4 ) having a removable cover ( 5 ), each having inwardly facing channels ( 10 , 11 ) which collectively define the sleeve into which the slideable arm ( 8 ) is received, said base plate ( 4 ) further includes a recess ( 12 ) into which part of the stop member ( 13 ) is inserted.