folding boards

folding boards

[′fōld·iŋ ‚bȯrdz]
(mining engineering)
A shifting frame on which the cage rests in a mine. Also known as chairs; dogs; keeps; keps.
References in periodicals archive ?
Neenah Paper and Packaging customers can now immediately access thousands of colors, textures, finishes and weights in premium papers, box wraps, folding boards and labels.
Neenah Paper and Packaging customers now have immediate access to thousands of colors, textures, finishes and weights in premium papers, box wraps, folding boards and labels.
Note that when multiple flex layers are used on folding boards, allowance must be made for the inner flexible layer to kink when the board is folded.
Garments are packed around folding boards (comprehensive instructions included) and compressed into pouches that conform to the exact dimensions of your luggage.