A double wire lip hook is provided. The double wire lip hook may be used for electrical power line work by helicopter or crane, in which closely spaced pairs of wires are used. The double wire lip hook may also be used for single wires and other lifting and pulling tasks. The example double wire lip hook has a geometry designed for high strength, maintaining a substantial cross-sectional area of metal or alloy throughout its profile. The double wire lip hook provides dual opposing hooks with wide throats cambered for wires. Dual tapers in a vertical shank member provide a large gape opening for each hook and keep loads on either side close to the vertical lifting axis for improved stability. Features such as one or more support ribs add to lifting strength and resistance to yield failure.

An advancing-retracting member (3) which is tubular is hermetically inserted into a housing (1) so as to be movable in an vertical direction. An advancing-retracting mechanism (13) is provided to the housing (1) so as to move the advancing-retracting member (3) in the vertical direction. A support cylinder (17) is provided in a manner so as to protrude upward from the advancing-retracting member (3) and be insertable into a hole (21) formed in a workpiece (20). A pressing surface (4) formed in a top end portion of the advancing-retracting member (3) is able to push the workpiece (20) up. In a case where the advancing-retracting mechanism (13) moves the advancing-retracting member (3) upward, the advancing-retracting member (3) causes the support cylinder (17) to be inserted into the hole (21) of the workpiece (20) from below, and the advancing-retracting member (3) presses against the workpiece (20) via the pressing surface (4) so as to move the workpiece (20) upward.

A flanged conduit support for forming openings in a poured concrete structure. The flanged conduit support includes a flange and a hub with a socket. A ganging means on the flanged conduit support enables the joining and locking of two or more supports together in a spaced relationship. The ganging means includes a male snap member with a tab and a tapered end and the female snap member includes a receiving slot. The flanged conduit support provides a means for rapidly securing a first end of conduit to a form and capping the opposite ends of the conduit to prevent the entry of concrete during the concrete pour. A removable cap may be removed after the concrete cures to provide one or more open pathways for running electrical cables through the horizontal floors or vertical walls.

A spiral pipe (9) is formed by joining edges of adjacent turns of a strip member (90) while helically winding the strip member using a pipe-making apparatus. A propulsive reaction force for moving in a winding direction of the strip member is imparted to a following strip portion (92) or a preceding spiral pipe portion (91) of the strip member by a propulsive reaction force imparting portion of the pipe-making apparatus. The following strip portion follows a preceding spiral pipe portion that has already been made into a pipe. A resisting force in a direction opposite to the propulsive reaction force is imparted to the strip member along the winding direction by a friction between a resisting force imparting portion and the strip member generated while the strip member is moved forward. In this arrangement, a diameter limiting frame can be omitted, and thereby, the pipe-making apparatus can be downsized.

A spiral pipe (9) is formed by joining edges of adjacent turns of a strip member (90) while helically winding the strip member using a pipe-making apparatus. A propulsive reaction force for moving in a winding direction of the strip member is imparted to a following strip portion (92) or a preceding spiral pipe portion (91) of the strip member by a propulsive reaction force imparting portion of the pipe-making apparatus. The following strip portion follows a preceding spiral pipe portion that has already been made into a pipe. A resisting force in a direction opposite to the propulsive reaction force is imparted to the strip member along the winding direction by a friction between a resisting force imparting portion and the strip member generated while the strip member is moved forward. In this arrangement, a diameter limiting frame can be omitted, and thereby, the pipe-making apparatus can be downsized.

A casing roller apparatus including an actuation apparatus for facilitating operation of the casing roller apparatus and an engagement apparatus for securely engaging a unit of casing to permit an oilfield worker to roll the unit of casing. The casing roller apparatus is used in a method of engaging a unit of casing with the casing roller apparatus and rolling the unit of casing from a first location to a second location.

A method protects a field joint of a pipeline, where chamfered edges of thermally-insulating parent coatings on conjoined pipe lengths are in mutual opposition about a longitudinally-extending gap. The method includes manufacturing an hourglass-shaped inner layer around the pipe lengths, which layer may be moulded. The inner layer extends longitudinally along the gap between the chamfered edges and at least partially overlies the chamfered edges. A thermally-insulating solid insert is assembled from two or more parts to lie in the gap surrounding the inner layer, and pressure is applied radially inwardly from the insert to the inner layer. An outer layer of molten material is manufactured around the insert to form a watertight barrier and to form one or more melted interfaces with the inner layer. Corresponding field joint arrangements are also disclosed.

An adjustable winch hanger is provided to mount and support a winch in midair or another location in order to lift objects such as pipes or the like to an appropriate height for installation. A plurality of bolt-receiving channels are connected to a main body and oriented laterally. A plurality of bolts, wedge bolts in particular, are positioned into the bolt-receiving channels. A rod channel runs vertically through the bolt-receiving channels to receive a vertically-oriented rod to which to affix the winch hanger. A tightening mechanism is engaged with the plurality of bolts and configured to axially displace the bolts within the bolt-receiving channels in order to tighten the bolts against the vertically-oriented rod. A center bolt is threadedly engaged with a threaded collar, which is connected to a tie bar, which is connected to the plurality of wedge bolts, ensuring the wedge bolts are laterally aligned with each other.

An adjustable winch hanger is provided to mount and support a winch in midair or another location in order to lift objects such as pipes or the like to an appropriate height for installation. A plurality of bolt-receiving channels are connected to a main body and oriented laterally. A plurality of bolts, wedge bolts in particular, are positioned into the bolt-receiving channels. A rod channel runs vertically through the bolt-receiving channels to receive a vertically-oriented rod to which to affix the winch hanger. A tightening mechanism is engaged with the plurality of bolts and configured to axially displace the bolts within the bolt-receiving channels in order to tighten the bolts against the vertically-oriented rod. A center bolt is threadedly engaged with a threaded collar, which is connected to a tie bar, which is connected to the plurality of wedge bolts, ensuring the wedge bolts are laterally aligned with each other.

Elongated member handling systems and methods for using same. The system can include one or more elongated members. A connector can be formed on or mechanically linked to a first end of each of the one or more elongated members. An optional cover can be coupled to the connector. The system can also include a pulling assembly at least partially disposed about the one or more elongated members and adjacent the first end of each of the one or more elongated members. The pulling assembly can include a support skid. The pulling assembly or, if present, the optional cover can include a primary pulling anchor. The system can also include a jumper winch configured to be mechanically linked to the primary pulling anchor. The jumper winch, when mechanically linked to the primary pulling anchor, can be configured to pull the pulling assembly from a first structure to a second structure.