Builder's hardware; a manual for architects, builders and house furnishers . jw-ujE^S-^o) Fig. 298. Mortise G. Newman. Fig. 299. Standard Store-door & Towne Mfg. Co. Neither of the foregoing offers any special protection againstpicking, except such as results from careful fitting, or, in theStandard lock, from the difficulty of reaching the levers througha small key-hole. Figure 800 shows a Robinson store-lock,in which the inside of the bolt-post is cut with a square an attempt is made to pick the lock by exerting a pressureon the bolt while the levers are raise
Builder's hardware; a manual for architects, builders and house furnishers . jw-ujE^S-^o) Fig. 298. Mortise G. Newman. Fig. 299. Standard Store-door & Towne Mfg. Co. Neither of the foregoing offers any special protection againstpicking, except such as results from careful fitting, or, in theStandard lock, from the difficulty of reaching the levers througha small key-hole. Figure 800 shows a Robinson store-lock,in which the inside of the bolt-post is cut with a square an attempt is made to pick the lock by exerting a pressureon the bolt while the levers are raised tentatively in succession,the notch in the post will catch in corresponding notches onthe edges of the lever gatings, holding the levers so they can-not be moved in either direction. Two of the levers only areso notched, the uppermost lever having plain gatings to pre-vent the posts from catching when the proper key is is a hand-made lock, with all the works made of brassexcept the bolt-post. DEAD-LOCKS. 193 Figure 301 shows another •Robinson lock in whi
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