Builder's hardware; a manual for architects, builders and house furnishers . ry-levers are so arrangedthat the gatings are above the line ofthe lock-post, rather than below it asin ordinary locks, and it is evident thatby raising the primary -levers to theproper heights the gatings of the sec-ondary-levers can be brought exactlyin line to permit the bolt-post to to prevent picking by the ten-tative process, one of the secondary-levers is made with plain gatings butthe others are finely notched to correspond with notches on thepost, so that if any attempt is made to force the bolt, the
Builder's hardware; a manual for architects, builders and house furnishers . ry-levers are so arrangedthat the gatings are above the line ofthe lock-post, rather than below it asin ordinary locks, and it is evident thatby raising the primary -levers to theproper heights the gatings of the sec-ondary-levers can be brought exactlyin line to permit the bolt-post to to prevent picking by the ten-tative process, one of the secondary-levers is made with plain gatings butthe others are finely notched to correspond with notches on thepost, so that if any attempt is made to force the bolt, the leversbecome fixed. The bolt is moved by a key-cam similar to thatshown by Figure 299. The small slide at the bottom of thelock is simply to prevent the cam from turning too far. The Dietz lock is machine-made, but is first class in every respect,with all-brass inside works. The agents maintain that thislock never has been picked. The description may seem com-plicated, but the lock is very simple in action, and it is one ofthe most satisfactory of its kind in the Fig. Lock. A. E. P. & F. Corbin. ORDINARY LOCK AND LATCH. One of the cheapest locks in the market, and one which,considering the price, is a very fair article, is manufactured byP. & F. Corbin, Figure 308. Everything about this lock is ofcast-iron except the springs. The single lever, under the bolt-tail, shown by Figure 304, has a small shoulder instead of ORDINARY LOCK AND LATCH. of gatings, and the latch has only one steel spring. It is alock that offers no real security, but it is worth all it costs, per dozen, it works easily, and is so simple in construc-tion that it seems capable of with-standing considerable wear, perhapsmore than a better article. Figure305 is a more expensive, one-leverlock by the same manufacturers,having double springs for the form of follow, A, and the ar-rangement of springs in this ex-
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Keywords: ., bookcentury1800, bookdecade1890, bookidbuildershard, bookyear1890
