| 摘要 |
A barrier system for concealing unsightly piles (11) and similar supports used to support a waterfront structure such as a dock (10) and for converting the vertical plane outboard of the piles (11), above the waterline (12), and below the waterfront structure (10), to utilitarian space for the display of graphic media. In one embodiment of the invention, the barrier system comprises a dynamic system wherein the barrier moves upwardly and downwardly with incoming and outgoing tides and includes a fine stainless steel mesh screen (14) secured at it's upper end to a roller (15) mounted on support brackets (16, 18) secured to the dock (10) and at it's lower end to a rod (20) having eyelets (21) projecting from it's opposite ends. Cables (22) secured at their upper ends to the brackets (16, 18) extend through the eyelets (21) and are anchored in place by weights (W-1, W-2). The screen (14) is maintained in a state of bouyant balance by flotation gear (25) secured to the rod (20), a weight (W-4) secured to the flotation gear (25), and a second weight (W-3) secured to and trained about a pulley (26) mounted on and drivingly connected to roller (15) so that the balancing system (25, W-3, W-4) serves to roll the screen (15) upwardly on incoming tides and downwardly on outgoing tides. In other disclosed embodiments of the invention, both dynamic and static barrier systems are described for use at waterfront locations where the waterline (12) remains substantially constant.
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