Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 56
iofti^ii|^ Mkdl^iqe. … This machiae is for making the mortise for stationary shades, and boring holes for rolling shades in the stilesfor window blinds. It is entirely automatic in its operations, and either bores the round hole for the reception ofthe pivot of turning slats, or mortises the recesses for the reception of…
