Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 420
of all obstructions or fold back on themselves,as with inside blinds. \Miere the swing is from horizontal bearings, the pins shouldalways be fixed—that is, so made that they cannot be removed. Inan upright position gravity holds them in place; but when put hori-zontally, the swinging of the sash… … Cheap Type of SpringButt. 345 14 HARDWARE .^1 appliances properly classed under this head designed for special service, such as spring hntts and double-acting butts. Spring Butts. Spring butts are those in which a spring is j)laced so as to force the door closed when not held open by some other…
Architecture · Building · Carpentry
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
