| 摘要 |
A device for holding a tubular support on which yarn is to be spooled has a pivotable yoke comprising two arms each with a plate to engage the support. One arm is laterally movable and the plate on that arm is in two parts, an external part to engage the support, and an internal part pivoted on the arm. A connection allowing only axial relative movement is between the parts. The arm has a braking device to engage the external part when such axial movement is brought about by pressing on the arm.
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