The wide heading long shaku sheet it stacks the water being, in

摘要

PURPOSE: To provide a floating tool for preventing the slackness capable of preventing long and broad sheets from slacking in towing thereof and accurately locating in laying at the water bottom by fixing the pulling direction, etc., so as to provide uniform deflection in the central parts of the long and broad sheets. ;CONSTITUTION: This floating tool for preventing the slackness is obtained by facilitating the pulling with air feed pipes provided just under long and broad sheets 2 corresponding to air blasting devices, pulling the long and broad sheets 2 into the water surface, then pulling and towing the long and broad sheets 2 in a tensed state on the water surface or in the water with moored ropes or rope equivalents, installed on the edge of water in the left and right directions facing the pulling directions, fastening and expanding extension stretch pneumatic columns 14 without slacking the central parts of the long and broad sheets 2 and fixing the full width in the direction in the pulling direction and the width direction perpendicular to that to pull the long and broad sheets 2 so as to provide the moderate uniform deflection.;COPYRIGHT: (C)1995,JPO