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 57
This machine, for boring and mortising window blinds, the manufacturer claims, excels all other machines forthe same purpose. It accomplishes its work with exceeding dispatch, and leaves a perfect mortise free from chipsand ready for use. A mortise can be made from i of an inch to 2i inches in… … This machine is used for compressing the ends of stationary blind slats so as to fit and fill the mortise. It maybe opferated by hand or power. The slats are placed in a hopper, or receiver, at the top of the machine, and therotary motion given to the balance wheel operates the dies by a…
