Builder's hardware; a manual for architects, builders and house furnishers . Fig. 304. Lever of same. Fig. 305. Lock. P. & F. Corbin. ample is that which lias been found to give the best results,generally speaking, and which has been adapted to a great manyvarieties of locks. When the latch is forced back, upon clos-ing the door, the lower spring alone is compressed, reactingagainst the plate and posts at B, but when the door-knob is Chapter & F 190 B UILDERS IIA RD WARE. Chapter XI. Niinick & Brittan. B. Shannon& Sons. turned in either direction the follow forces back one of the armsof
Builder's hardware; a manual for architects, builders and house furnishers . Fig. 304. Lever of same. Fig. 305. Lock. P. & F. Corbin. ample is that which lias been found to give the best results,generally speaking, and which has been adapted to a great manyvarieties of locks. When the latch is forced back, upon clos-ing the door, the lower spring alone is compressed, reactingagainst the plate and posts at B, but when the door-knob is Chapter & F 190 B UILDERS IIA RD WARE. Chapter XI. Niinick & Brittan. B. Shannon& Sons. turned in either direction the follow forces back one of the armsof C, compressing the upper spring, while a shoulder on thelower part of C catches on D, which is attached to the latch-holt, thus bringing both springs into play. This would betermed an easy spring latch, in that the knob can be turnedwith equal ease in either direction. Figure 30G illustrates a lock manufactured by Nimick &Brittan, in which the lever and bolt are essentially the sameas in the preceding ex-ample, but which has afollow arranged upon adiff
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