Abstract: A portable fence is practically easy and fast to be installed along the boundary of a keep-off area to restrict and entry of the unconcerned at construction or events-holding sites and is conveniently compact to carry and store due to its foldability. This fence comprises a conjunction screen formed by connecting a plurality of fence components, preferably formed of synthetic resin by blow molding, side by side through a hinge mechanism such that they are foldable to each other and a support means or stay pivotably mounted onto a lower fringe portion of said conjunction screen, and stably provides a restricted area at a site where an access of the unconcerned is restricted in an easy and fast manner and is convenient to carry and store due to its foldability. The addition of a weight container thereto further enhances the standing stability thereof.

Abstract: A yarn unwinding tension stabilizer capable of stably unwinding a yarn from various types of yarn suppliers in such shapes as cheese and cone so as to effectively cope with such drawbacks as slide of wound layers on a yarn supplier and slippage of yarn loops therefrom due to the ballooning of an unwound yarn and so forth and a yarn unwinding tension stabilizing apparatus for a warping creel capable of simultaneously setting said stabilizers on the multiple number of the suppliers suspended on the warping creel in an easy operation. The tension stabilizer (3) is arranged by disposing the plurality of elastic wiring materials (2) on the opening (10) of the supporting member (1) in such a manner that said materials convavely curve towards the center of said opening and overlap one another. The frame, in which the plurality of said stabilizers are aligned in rows, is arranged such that it is horizontally movable as a whole.