Various, International Library of Technology… (1909)
“ Turnbuckles.—The device shown in Fig. 141 is known as a turnbuckle; it is employed for fastening shutters in an open position against a building. Turnbuckles are made of cast-iron or of wrought steel, and for use on either frame or brick buildings. They may be used in connection with all styles of hinges, and are generally employed on buildings that are exposed to exceedingly strong winds. ”
