A tilting and telescoping mast assembly having a compact device footprint that can be mounted in close proximity to, for example, a front wall of a truck bed (e.g., adjacent the cab) thereby reducing dead space within the truck bed and maximizing cargo space within the bed. The mast of the present disclosure is configured to be supported by its base in a first position when in the horizontal orientation and supported in a second position when in the vertical orientation, with the first and second positions being spaced apart horizontally and/or vertically.

A transportable lighting system. The lighting system is designed to withstand the difficult and extreme weather conditions typically experienced in outdoor work sites such as drilling rig environments. The pulley and roller arraignments are designed for minimal friction. The overall pulley and roller design for the lifting of the unit (including the way the cables are orientated) is extremely robust. The outrigger includes fold out and lock in place design. The power source can run a duel transfer switch setup powered by an external supply (like drilling rig power) or from its own 100% back-up generator. Lighting used is typically light in weight and bright. Towers are skid mounted and mobile, e.g., with the use of a truck. Individual lights can swivel and tilt as can the entire bank of lights.

Provided is a tool arrangement for pivoting a tower or a tower segment from a non-erected position to an erected position, including a bottom tool device with a first device section with an attachment to removably attach the first device section to a bottom mounting section, and with a second device section adapted to be arranged on the ground and being attachable or attached to the first device section, wherein the bottom tool device includes a pivot axis at least when the first and the second device sections are attached to each other, wherein the tower or the tower segment, when fixed to the bottom tool device, is pivotable around the pivot axis when being erected, wherein, when the tower or the tower segment is fixed to the bottom tool device, the pivot axis is perpendicular to the longitudinal axis of the tower or the tower segment.

The nacelle of a horizontal axis wind turbine is fixedly mounted on a tower, and the tower is mounted off-center with respect to a ring around which it is rotatable. The tower is a tripod. Two legs of the tripod are of fixed length and lie in a plane perpendicular to the axis of rotation of the turbine blades. The third leg of the tripod is of adjustable length and is aligned with the axis of rotation of the turbine blades. The third leg thus may be controlled to adjust for pitching of the base and other purposes. Multiple turbines, spaced apart laterally, may be mounted on a platform in a fixed orientation, with the platform rotatably mounted off-center relative to a base.

Antenna tower construction/deconstruction biasing assemblies are provided. The biasing assemblies can be configured to extend between a standard and an antenna tower. The assemblies can include: an adjustable linear extension extending between a first end configured to couple with the standard and a second end configured to couple with the antenna tower; and a biasing mechanism configured to adjust the length of the linear extension and maintain the rigid engagement during transitioning of the tower from a down/erect position to an erect/down position. Methods for constructing/deconstructing an antenna tower are provided. The methods can include providing a biasing assembly.

The monitoring system includes a support device which is displaceable, a mast which is supported by the support device, and a stabilization device configured to vertically stabilize the mast during displacements of the support device, the stabilization device including a plurality of support arms which are fastened to the mast and which are angularly offset from each other, and a plurality of air flow generation devices that are fastened to the support arms.

A drilling rig system includes a mast that includes one or more front legs, one or more rear legs positioned opposite the one or more front legs, and a crown block at the top of the mast. The system also includes a raising line coupled to the crown block or the one or more rear legs and configured to apply a first force to the mast. The first force acts in a direction opposing a second force generated by the weight of the mast as the mast pivots between a substantially horizontal position and a substantially vertical position. The system also includes a drawworks assembly coupled to the raising line and configured to pull the raising line to generate the first force, and a telescoping spring assembly coupled to the one or more front legs. The telescoping spring assembly is configured to apply a third force to the mast that acts in the direction opposing the second force.

Methods for constructing/deconstructing an antenna tower are provided. The methods can include engaging a stability assembly between a standard and a tower to maintain tension in a line used to raise/lower the tower. Antenna tower construction/deconstruction stability assemblies are also provided. The assemblies can include a stability assembly extending from the standard and configured to rigidly engage a portion of the antenna tower, the stability assembly being operable to maintain the rigid engagement during transitioning of the tower from a down/erect position to an erect/down position.

Described herein is a device for upending a tubular element with a longitudinal direction from a support surface at an outer end. The device has a support beam which runs substantially parallel to the support surface and is connected to the support surface at a support point. The support beam guides a coupling tool to which a wall part of an outer end of the tubular element can be coupled. The coupling tool is displaceable relative to the support surface with the support beam, from a clear position to a coupled position in which the tubular element outer end is engaged by the coupling tool. Also described herein, in addition to the device, is a method which makes use of the device.

A mobile tower system includes a steel shipping container. A tower structure is moveable between a substantially horizontal travel position and a substantially vertical operational position. A connection member is fixed to a lower portion of the tower structure and moveably coupled to a channel disposed in a horizontal member removeably attached to a vertical frame attached to a back wall of the steel shipping container. When the tower structure is displaced from the substantially horizontal travel position to the substantially vertical operational position, the connection member and the tower structure are linearly displaced together along the channel toward the back wall and the tower structure is pivotably displaced about the connection member, such that the upper portion of the tower structure is displaced through an opening disposed in a roof of the steel shipping container proximate a back wall of the steel shipping container.