Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 422
uld always be remembered inits selection. As a general rule, all bolts operated by a sunken thumb-piece(Fig. 51) should be avoided, for, if they stick—and they generallydo—very little power can be exerted by the end of a thumb. Thereare many lever and Iviiob devices \Yhich permit the direct… … Fig. 50. Common Type of Bolt with Keeper-Strap. The rod on a boit should be tapered at the end, as the two parts rarelycome exactly together so as to permit the rod to enter the keepers;if it tapers, it will, as it enters, draw the door to its proper position.For drop-front drawers in linen…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
