Abstract: Apparatus for the lifting of pipelines, includes a frame having two vertical side beams and a transverse top beam interposed between the vertical beams. Two concave and symmetrically disposed supporting members pivotally connect to the two vertical beams, respectively, and are configured to achieve a pipe supporting position without applying a radial inwardly directed force to the bottommost portion of the pipe when the frame is suitably lowered and the supporting members are suitably pivoted. A driving unit is disposed within, and fixedly attached to, each of the supporting members, for generating a linear downwardly directed force; a force transmitting element connected to a driving unit rod along which a corresponding driving unit housing is slidingly displaceable. A control unit independently controls each of the driving units; and at least one connector releasably connects the two supporting members to one another when the supporting members are in a pipe supporting position.

Abstract: Apparatus for the lifting of pipelines, includes a frame having two vertical side beams and a transverse top beam interposed between the vertical beams. Two concave and symmetrically disposed supporting members pivotally connect to the two vertical beams, respectively, and are configured to achieve a pipe supporting position without applying a radial inwardly directed force to the bottommost portion of the pipe when the frame is suitably lowered and the supporting members are suitably pivoted. A driving unit is disposed within, and fixedly attached to, each of the supporting members, for generating a linear downwardly directed force; a force transmitting element connected to a driving unit rod along which a corresponding driving unit housing is slidingly displaceable. A control unit independently controls each of the driving units; and at least one connector releasably connects the two supporting members to one another when the supporting members are in a pipe supporting position.

Abstract: Apparatus for spraying maintenance enhancing material onto the periphery of a tubular member positioned above a ground surface, that comprises means for generating spray onto the periphery of the tubular member; means for delivering maintenance enhancing material to the spray generating means; and means for positioning the spray generating means in such a way that the periphery of the tubular member is completely impinged by the spray issuing from each spray generating means and that a line corresponding to the shortest distance of a spray issuing from the spray generating means to the periphery of the tubular member is not necessarily colinear with the radius of the tubular member.

Abstract: Apparatus for spraying maintenance enhancing material onto the periphery of a tubular member positioned above a ground surface, that comprises means for generating spray onto the periphery of the tubular member; means for delivering maintenance enhancing material to the spray generating means; and means for positioning the spray generating means in such a way that the periphery of the tubular member is completely impinged by the spray issuing from each spray generating means and that a line corresponding to the shortest distance of a spray issuing from the spray generating means to the periphery of the tubular member is not necessarily colinear with the radius of the tubular member.