| 摘要 |
A tightening arrangement for a chain adapted to be strung rigidly between adjoining pluralities of post members; a screw type tightening device is attached to the first and last of the plurality of post members which have bracket means to which the ends of the chain can be releasable attached so that when the screw type tightening means are turned the chain is drawn in opposite direction to tighten the chain; the intermediate post members between the end posts are each provided with a hook for hooking attachment of said chain thereto between adjoining chain links; the intermediate hook members on the intermediate posts are pivotable to permit take-up of any slack in the chain between adjoining posts.
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