| 摘要 |
This clamp comprises a cylindrical shank on which is a slidable and rotatable sleeve. A lower clamp foot is secured to one end of the shank and an upper clamp foot is secured to the sleeve. The two clamp feet can be clamped onto a support which forms part of the side of the bed by a nut which is threaded onto the shank. A socket in the upper end of the shank is adapted to support a removable upright member used in connection with the bed.
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