Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 409
th allhardware, thesimplest form isthe best. Lockswhich have pe-culiar combina-tions, such asturning the key in a certain way to operate one bolt, and further in the same wayor in an opposite direction to operate the second bolt, are to beavoided. They afford no additional protection, and are often… … Fig. 32. Common Type of Bit Key. 332 HARDWARE 21 the operator will be pinched between the knob and the door-frame. The key is an important item, and selection of the style of keyshould always be with strict reference to the use of the lock. Thelatch-key will be in daily use and carried by several…
Architecture · Building
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