Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 426
ives hard usage, and theheavier it is, the more evenly itresponds to pressure. There arevarious anti-friction deviceson the market, but thev arerarely any improvement overthe well-designed and well-manufactured latch-face.Should the selection, however,be unfortunate, and the opera-tion of the latch… … Fig. 28. Mortise Lock. Fig. 29. Unsatisfactory Outline for Latch Face.
Architecture · Building · Carpentry
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