Builder's hardware; a manual for architects, builders and house furnishers . ng-door ic Sons. remain closed until drawn back by pressure on the upper 357 is a very simple rim sliding-door latch ; and Figure358 is a very good rim door-catch which is self-acting, the hookbeing released by raising the lever A, either directly or by aidof the spindle, B< from the outside of the door; while it islocked from within or without, the slide C being moved so thatA cannot be raised. Figure 359 represents one of a greatvariety of styles of thumb-latch, a very simple, old-fashion
Builder's hardware; a manual for architects, builders and house furnishers . ng-door ic Sons. remain closed until drawn back by pressure on the upper 357 is a very simple rim sliding-door latch ; and Figure358 is a very good rim door-catch which is self-acting, the hookbeing released by raising the lever A, either directly or by aidof the spindle, B< from the outside of the door; while it islocked from within or without, the slide C being moved so thatA cannot be raised. Figure 359 represents one of a greatvariety of styles of thumb-latch, a very simple, old-fashionedform which is very suitable for some cases. Figures 360 and Elevator-DoorLatch. Sliding-Door Latch. Thumb-Latch. 234 B UILDERS HARD WARE. Chapter XI. .Screen-Door Catch. 301 are cheaper forms of thumb-latches, intended to be usedonly on screen-doors. Each of these styles has a lever of somesort, A, which serves to lock the latch. All of these patternsact by gravity. Figure 362 shows a spring-catch which is re-leased by lifting or pulling out the handle on one side or by. Fig. 359. Brass ThumbLatch. J. B. Shannon Fig. 3 58. Mack & Redways Barn-door imick & depressing the thumb-latch on the other, the latch being lockedby the swing-lever A. For French windows and cupboard-doors or for light screen-doors, one of the styles represented by Figures 363, 364 and365 are employed. Figure 364 can be locked, and itand Figure 365 work with a spring. PRICES OF LOCKS. It has not been deemed advisable to publish in this connec-tion any summary of the market prices of the locks which havebeen illustrated and described, as, without such an acquain-tance with the subject as can come only by examination andcomparison of the actual samples, any prices which might begiven would be misleading, and would often be unfair criteriaof comparison. The real value of a lock depends so largelyupon the care with which the levers are fitted, and the care LA TCHES. taken with such details differ
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