Kidder, Frank E. (Frank Eugene), 1859-1905, Nolan, Thomas, 1857-1926 · New York : W.T. Comstock · leaf 387
Fig. 403. —Gem Bolt. … Fig. 404.—Chain Dolt. tised bolts are preferred. The neatest mortise bolt is probably theknob bolt shown in Fig. 375, or an extra bolt in the lock, as in thethree-bolt chamber door lock. FINISHED HARDWARE—BOLTS. 381 When the door is already fitted with a common knob lock, a cylin-der mortise bolt,…
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