Builder's hardware; a manual for architects, builders and house furnishers . VESTIBULE-LATCHES. 209 before the other can reach the shoulder on the latch-bolt C, and force it back. Figure 329 is the vestibule-latch sold with the front-door lock represented by Figure 827. Figure 330 is a Standard knob-latch manufactured by the Yale & Towne Company, which is not, properly speaking, a vestibule-latch, but which isworthy of consideration in thisconnection. It is provided withtriple-springs, thus permittinga very easy action on the part. Fig. 329. Fig. 330. Standard Knob-La
Builder's hardware; a manual for architects, builders and house furnishers . VESTIBULE-LATCHES. 209 before the other can reach the shoulder on the latch-bolt C, and force it back. Figure 329 is the vestibule-latch sold with the front-door lock represented by Figure 827. Figure 330 is a Standard knob-latch manufactured by the Yale & Towne Company, which is not, properly speaking, a vestibule-latch, but which isworthy of consideration in thisconnection. It is provided withtriple-springs, thus permittinga very easy action on the part. Fig. 329. Fig. 330. Standard Knob-Latch. Yale& Towne Mfg Co. of the striker while giving all necessary strength to resist theturn of the knob. This can be adjusted to either right or lefthand doors. HOTEL-LOCKS. Hotel-locks are usually made to order, and master-keyed insets. In a large hotel all the locks on a floor can be openedwith one key. In smaller buildings all the room-locks aremaster-keyed in a single series. The protection afforded bylocks which are master-keyed is, of course, less than it wouldotherwise be, as a master-keyed lock can very easily be pickedif the principle of master-keying is understood, and in most Chapter XI. Tale & TowneMfg. Co. Hotel-Locks. 210 BUILDERS HARDWARE. Chapter XI. P. & F. Corbin. Hopkins &DickinsonMfg. Co. cases master-keying benefits no one but the with the Yale and the Hopkins & Dickinsoncylinder-locks, there has not yet been devised a really satis-factory system of master-keyin
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