Support column collet assembly

A support column assembly comprising:

• a first tube having first and second ends;
• a base on the first end of the first tube for engaging a surface;
• a second tube having first and second ends, with an opening in the second end;
• a base on the first end of the second tube;
• a collet clamp having a tapered portion adapted to be received within the opening in the second end of the second tube, the collet further comprising an opening therein for receiving the second end of the first tube, the collet clamp being configured to compress against the second end of the first tube received in the opening of the collet when the tapered surface is pressed into the opening in the second end of the second tube, to effectively clamp the first tube relative to the second tube.

An adjustable support column assembly comprising:

• a first tube having first and second ends;
• a first base plate on the first end of the first tube, extending perpendicularly with respect to the first tube;
• a second tube having first and second ends, the second end of the second tube having an opening therein;
• a second base plate on the first end of the second tube, extending perpendicularly with respect to the second tube;
• and
• a collet clamp having a tapered cylindrical portion at one end that is adapted to be received in the opening in the second end of the second tube, and an opening therein for adjustably receiving the second end of the first tube, the collet clamp including at least two slots extending longitudinally from the end of the collet that is adapted to receive the first tube, the collet clamp being configured to compress against the portion of the first tube received in the opening in the collet when the tapered cylindrical surface of the collet is pressed into the opening in the second end of the second tube, to effectively clamp the base tube relative to the bearing plate tube.

An adjustable support column assembly comprising:

• a first support tube having first and second ends, with an opening in the second end;
• a bearing plate on the second end of the first support tube;
• a second support tube, having first and second ends;
• a bearing plate on the first end of the second support tube;
• the second end of the second support tube telescoping into the opening in the second end of the first tube;
• a locking wedge between the second end of the first tube and the second end of the second tube, the wedge having an tapered exterior face facing the inside of the second end of the first tube;
• a cylindrical clamp having an opening for receiving the second end of the first tube, and adapted to be driven over wedge member, the clamp having a tapered interior surface for engaging the second end of the first tube between the locking wedge and clamp, so that the relative axial movement of the cylindrical clamp and the locking wedge compresses the second end of the first support tube against the second end of the second tube to effectively clamp the first support tube relative to the second support tube.