Apparatus for applying a determined force to an element connected to an installation subjected to alternating movements

An apparatus for an installation subjected to alternate displacements, wherein said apparatus maintains a predetermined force on an extended element connected to said installation, said apparatus comprising at least one main jack, at least one pressurized fluid accumulator, said main jack being supplied with said pressurized fluid from said accumulator for maintaining the extended element under tension, and a regulating device connected to said accumulator in parallel with said main jack, said regulating device comprising at least two regulating jacks whose axes form an angle therebetween, said regulating jacks being connected by at least one articulation, and said apparatus further comprising at least one adjusting jack connected to said regulating device, said adjusting jack applying an adjustment force on the extended element, and said adjusting jack having a fixed orientation in relation to that of said main jack to apply said adjustment force to the extended element along the entire path of action of said main jack, thereby producing the predetermined force on the extended element, wherein at least one of said at least two regulating jacks is further connected to a pivot point, and wherein said articulation is movable along a predetermined path such that the angle formed between the axes of the regulating jacks is variable, and wherein said regulating device comprises three regulating jacks, two of said three regulating jacks being supplied by said pressurized fluid from said accumulator, and the other of said three regulating jacks supplying auxiliary pressurized fluid to said at least one adjusting jack.

An apparatus for an installation subjected to alternate displacements, wherein said apparatus maintains a predetermined force on an extended element connected to said installation, said apparatus comprising at least one main jack, at least one pressurized fluid accumulator, said main jack being supplied with said pressurized fluid from said accumulator for maintaining the extended element under tension, and a regulating device connected to said accumulator in parallel with said main jack, said regulating device comprising at least two regulating jacks whose axes form an angle therebetween, said regulating jacks being connected by at least one articulation, and said apparatus further comprising at least one adjusting jack connected to said regulating device, said adjusting jack applying an adjustment force on the extended element, and said adjusting jack having a fixed orientation in relation to that of said main jack to apply said adjustment force to the extended element along the entire path of action of said main jack, thereby producing the predetermined force on the extended element, wherein said at least one adjusting jack produces said adjustment force opposite to the tension force exerted by said main jack, said adjusting jack having a cylinder being fed with pressurized auxiliary fluid from said regulating device, wherein two adjusting jacks are connected to said regulating device for producing said adjustment force opposite to the tension force exerted by said main jack on the extended element, wherein each of said two adjusting jacks and said at least one main jack include a piston cylinder, a piston and a piston rod, said piston rod of each jack being connected to a support member for the extended element, wherein said pressurized fluid is supplied to the piston cylinder of said main jack to provide said tension force on said extended member, while auxiliary pressurized fluid is supplied to the piston cylinders of said two adjusting jacks from said regulating device to provide said adjustment force on said extended member opposite to said tension force, wherein at least one of said at least two regulating jacks is further connected to a pivot point, and wherein said articulation is movable along a predetermined path such that the angle formed between the axes of the regulating jacks is variable, and wherein said regulating device comprises three regulating jacks, two of said three regulating jacks being supplied by said pressurized fluid from said accumulator, and the other of said three regulating jacks supplying auxiliary pressurized fluid to said two adjusting jacks.