Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 425
generally cast iron or pressed steel,which should be heavy enough to hold its shape firmly, withoutspringing or cracking if for any reason the mortise for which it isintended is not of the proper shape or size, which it rarely is. After the question as to the use of a rim or a mortise lock… … Fig. 37. Rim Lock. 350 IIAUDWARE 19 the part which is operated by the knobs and which holds the door closed under ordinary conditions. As the latch is the part subject to most fre(juent use, it is very desirable that its mechanism be as simple as possible and that all moving parts be of brass or…
Architecture · Building · Carpentry
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