Aspects of the present disclosure are directed to a telescopic mast. In some embodiment, the telescopic mast includes at least two telescope members with parallel walls. One of the at least two telescopic members including at least two adjoining telescopic sections, with one of the at least two adjoining telescope sections being thinner than the others of the at least two adjoining telescope sections, so that a telescope section can be passed respectively into and out of a telescope section positioned round it in a telescope member. This telescope section positioned round it can be passed into and out of a further telescope section in a further telescope member. The telescopic mast further including elastic elements/actuators fitted between the adjacent telescopic sections, the elastic elements/actuators equalize and bear the dead weight and the useful load on the telescopic mast.

Foldable spaceframes that can be easily collapsed and unfolded to construct structurally stable (temporary) walls, for instance for events (concerts, shows, etc.) upon which (digital) display elements can be deployed, as well as a method for the construction of overlying structures comprising the spaceframes.

Foldable spaceframes that can be easily collapsed and unfolded to construct structurally stable (temporary) walls, for instance for events (concerts, shows, etc.) upon which (digital) display elements can be deployed, as well as a method for the construction of overlying structures comprising the spaceframes.

A pneumatic telescopic column assembly for supporting and moving military equipment, communication equipment, lighting equipment and/or surveillance equipment is provided. The pneumatic telescopic column assembly extends along an axis and has a plurality of tube groups telescopically configurable between a compact configuration and an extended configuration. The plurality of tube groups has a base tube group, an intermediate tube group and a head tube group. The base tube group has a base tube element and a base locking ring that has at least one horizontal latch, at least one actuator and at least one vertical latch. The intermediate tube group has an intermediate tubular element and an intermediate locking ring that has at least one horizontal intermediate latch. The tubular head group has a tubular head element.

A Mobile Autonomous Solar-Wind Electrical Station (MASWES) comprises an offshore container (2), which equipped with a reinforced case (18); a reinforced grillage (19) provided by at least two beams laid along, and plurality beams laid across the container (2); at least two reinforced internal columns (42) arranged in opposite comers of the container (2) and between the grillage (19) and the middle part of the reinforced case (18); a plurality of light reflecting mats (21); a plurality of movable screw-piles (22), which in the transport position are stored in the plurality of cylindrical channels (38); at least two monolithic towers or telescopic masts (52) of powerful horizontal-axis wind turbines (23) providing at least 10 kW power each with blades and wind vanes taken off in the transport position. The reinforced internal columns (42) are the bases for the monolithic towers or the telescopic masts (52) and equipped with a hydraulic mechanism or an electric actuator (54) and an erection tool for installation of mentioned monolithic towers or telescopic masts (52). The container (2) comprises gondolas, which in the transport position are arranged horizontally in opposite ends of the container (2); a plurality of photovoltaic double-sided panels (24); a plurality of multifold frameworks for photovoltaic panel arrays (25) with at least 30 kW power total and at least one charging point (28) stored inside the container and at least one rechargeable battery (31).

A mast (10) which includes an elongate post (12) with a first end (14) and a second end (16), the first end (14) being pivotally secured to a ground-engaging support base, at least a first mechanism (22) to restrict pivotal movement of the post (12), a winch (26) which is attached to the post (12), and a cable (28) which is engaged with the winch (26) and which is secured at one end to an anchor (30), wherein the winch (26) is actuable to allow the post (12) to pivot, from an elevated position, in a first direction (54) which lowers the post (12) against the action of the movement restricting first mechanism (22), and which is actuable to pivot the post (12) in a second direction (56) which opposes the first direction (54) to elevate the post (12).

Hoists, platforms and davits are described as well as methods of securing same to telecommunication and other towers. The hoists, platforms and davits may be secured to the towers on a temporary basis using clamps. The clamps may include brackets and cables. The cables may be attached to the brackets, may wrap around the outer surface/perimeter of the tower pole/leg and may use tension to keep the bracket in place.

This invention discloses a tower system in which a telescoping tower with a plurality of tower structures is contained within a rigid transportation container in a substantially horizontal position for transportation, may be extended to a height much greater than its contracted length. The tower may be transported horizontal, repositioned to a vertical position and then the individual tower structures extended and secured via spring pins relative to the adjacent tower structure, the erection of the tower sections may be with external equipment such as a boom truck, or utilizing an internal hydraulic cylinder.

A retractable stand comprises a base, two ribbons, and a locking mechanism. Each ribbon has a coiled portion and an uncoiled portion. The uncoiled portions have a curved cross-sectional shape positioned in opposing relation to each other. The locking mechanism is movable between an unlocked position and a locked position where the at least one ribbon is substantially inhibited from moving relative to the base in at least one direction. The locking mechanism can comprise an auto-locking member biased toward the locked position. The locking mechanism can further comprise a trigger mounted on the base and accessible by the user to move the auto-locking member to the unlocked position. Preferably, the retractable stand further includes a manual locking mechanism that can be manually selectively moved between unlocked and locked positions to selectively lock and unlock a position of at least one of the ribbons relative to the base.

A Mobile Autonomous Solar-Wind Electrical Station (MASWES) comprises an offshore container (2), which equipped with a reinforced case (18); a reinforced grillage (19) provided by at least two beams laid along, and plurality beams laid across the container (2); at least two reinforced internal columns (42) arranged in opposite corners of the container (2) and between the grillage (19) and the middle part of the reinforced case (18); a plurality of light reflecting mats (21); a plurality of movable screw-piles (22), which in the transport position are stored in the plurality of cylindrical channels (38); at least two monolithic towers or telescopic masts (52) of powerful horizontal-axis wind turbines (23) providing at least 10 kW power each with blades and wind vanes taken off in the transport position. The reinforced internal columns (42) are the bases for the monolithic towers or the telescopic masts (52) and equipped with a hydraulic mechanism or an electric actuator (54) and an erection tool for installation of mentioned monolithic towers or telescopic masts (52). The container (2) comprises gondolas, which in the transport position are arranged horizontally in opposite ends of the container (2); a plurality of photovoltaic double-sided panels (24); a plurality of multifold frameworks for photovoltaic panel arrays (25) with at least 30 kW power total and at least one charging point (28) stored inside the container and at least one rechargeable battery (31).