Builder's hardware; a manual for architects, builders and house furnishers . Fig. 300. Fig. 301 Store Locks. E. Robinson. by attaching the post to a thin plate, sliding up and down inthe bolt-tail, but held down by a spring lever such as thosewhich work against the main levers. The post and thegatings are so arranged that if the levers could be so lifted asto bring the gatings exactly in a line, the bolt could not bemoved, as the post would be too low down to pass. The post,as well as the levers, has to be raised, and on account of thenotches, which prevent any tentative picking, this can be d
Builder's hardware; a manual for architects, builders and house furnishers . Fig. 300. Fig. 301 Store Locks. E. Robinson. by attaching the post to a thin plate, sliding up and down inthe bolt-tail, but held down by a spring lever such as thosewhich work against the main levers. The post and thegatings are so arranged that if the levers could be so lifted asto bring the gatings exactly in a line, the bolt could not bemoved, as the post would be too low down to pass. The post,as well as the levers, has to be raised, and on account of thenotches, which prevent any tentative picking, this can be doneonly by the proper key. The works of this lock are all of brass,except the sliding jiarts of the bolt and the bolt-post which areof steel. The key is tabular, and the lock can be opened fromone side only. It is an old style, and is little used at present. A lock which is asserted to be absolutely proof against pick-ing, is the Dietz lock, Figure 302. In this the locking-leversare not touched at all by the key, being separated from thekey-hole by a curtain or partition
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Keywords: ., bookcentury1800, bookdecade1890, bookidbuildershard, bookyear1890
