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 35
kes it a very strong feeding machine, enablingthe operator to hold his shades more firmly to the bed than can be done with an ordinary blind shade machine. TheBed is raised at both ends with screws, keeping it always level, and is firmly fastened to the frame with bolts work-ing in slots in the…
