Chicago Metallic Sash Company · Chicago Metallic Sash Company · leaf 43
ing, and being hinged at bottom, makes this Ventilator desirable where screens are needed. It is obvious however, that this style of hinge is adapted only to Bottom Vents, within reach of the hand; and the old time Pivoted Vents, are regarded as safer for overhead. The drawing below, pictures side… … 46
Art glass · Came · Openings · Glazing accessories, stained glass
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
