Apparatus for use above and below a restriction in a well bore and a
method of operation is described. The apparatus comprises an upper
element, such as a wiper, operable in the well bore above the restriction
and a lower element, which may be a lower wiper, operable in the well
bore below the restriction. A drop ball sized to pass through the
restriction is released from the upper element and thereby passes through
the restriction to operate the lower element. In one embodiment, the
apparatus is incorporated into a running tool, which may be used to hang
liners by dimple forming.