Abstract: Cart for building a bridge board forward progressive which incorporates a system for positioning reinforcement pieces, which have displacement tracks on the upper working surface and runners on which the reinforcement pieces are situated and which are displaced on the displacement tracks, where by means of the system for positioning reinforcement pieces it situates the reinforcement pieces in a position of the upper working surface for a subsequent concreting of a section of the board of the bridge, with the cart being fixed in the position thereof.

Abstract: The invention relates to a traveller (1) for the construction of engineering works, comprising two structures, namely: a securing structure (2) for securing to the already built engineering work, and a working structure (3) on which construction of the work advances. The traveller is characterized in that the securing structure (2) comprises: a first end ring (6) and a second middle ring (7), both of said rings (6, 7) being coupled to the periphery of the section (27) of the already built work; at least one transom bar (9) that joins the end ring (6) and the middle ring (7) on the side of the carriage (1); and connecting elements between the end ring (6) and the middle ring (7). The working structure (3) comprises exterior formwork (25) and floor formwork (23).

Abstract: Movable centring for platforms in ports which comprises a mobile structure (1) with various formworks (2) and is supported on piles (3). The support of the mobile structure (1) on the piles (3) is carried out by means of, at least, two supporting devices (5), wherein each supporting device (5) comprises one front supporting beam (6d), which comprises at least two coupling pieces (18), one rear supporting beam (6t) which comprises at least two coupling pieces (18) and a lattice (7), beneath each supporting beam (6d, 6t). The two supporting beams (6d, 6t) are joined together by means of the at least two coupling pieces (18), thus leaving the supporting device (5) fixed to the pile (3) by means of this union, and joining each supporting beam (6d, 6t) to the mobile structure (1) by means of, at least, two vertical latching bars (8).

Abstract: Cart for building a bridge board forward progressive which incorporates a system for positioning reinforcement pieces, which have displacement tracks on the upper working surface and runners on which the reinforcement pieces are situated and which are displaced on the displacement tracks, where by means of the system for positioning reinforcement pieces it situates the reinforcement pieces in a position of the upper working surface for a subsequent concreting of a section of the board of the bridge, with the cart being fixed in the position thereof.

Abstract: Movable centring for platforms in ports which comprises a mobile structure (1) with various formworks (2) and is supported on piles (3). The support of the mobile structure (1) on the piles (3) is carried out by means of, at least, two supporting devices (5), wherein each supporting device (5) comprises one front supporting beam (6d), which comprises at least two coupling pieces (18), one rear supporting beam (6t) which comprises at least two coupling pieces (18) and a lattice (7), beneath each supporting beam (6d, 6t). The two supporting beams (6d, 6t) are joined together by means of the at least two coupling pieces (18), thus leaving the supporting device (5) fixed to the pile (3) by means of this union, and joining each supporting beam (6d, 6t) to the mobile structure (1) by means of, at least, two vertical latching bars (8).

Abstract: The wedging system for transmitting loads from a formwork to the comprises a supporting member (3), a threaded bar (2) for the transmission of vertical load, a nut (11), and a base (1) that in turn comprises a plate (9) with a perforation (10), wherein the bar (2) for transmitting vertical load is secured to the supporting member (3), the supporting member (3) being affixed to a side wall of the formwork and the loads generated in the formwork being transmitted to the land, thereby preventing relative movement between the base (1) and the supporting member (3), by means of the insertion of the bar (2) for transmitting vertical load into the perforation (10) in the plate (9) of the base (1) and screwing the nut (11) into the upper end of the bar (2) for transmitting vertical load.

Abstract: The invention relates to a traveller (1) for the construction of engineering works, comprising two structures, namely: a securing structure (2) for securing to the already built engineering work, and a working structure (3) on which construction of the work advances. The traveller is characterised in that the securing structure (2) comprises: a first end ring (6) and a second middle ring (7), both of said rings (6, 7) being coupled to the periphery of the section (27) of the already built work; at least one transom bar (9) that joins the end ring (6) and the middle ring (7) on the side of the carriage (1); and connecting elements between the end ring (6) and the middle ring (7). The working structure (3) comprises exterior formwork (25) and floor formwork (23).

Abstract: The invention relates to a clamp for handling large loads. The load to be held is a prismatic block, which may be spherical or irregular and is held by the clamp at three points. The clamp has a master arm (7), which is connected by means of at least one shaft to two free arms (3), with support elements (2) which improve grip being present at both the holding end of the master arms (7) and at the holding ends of the free arms (3).