Builder's hardware; a manual for architects, builders and house furnishers . Fig. 54. Door-fast. Sargent & Co. catch on the door-jamb in such a manner that when the dooris opened and the bolt tilted the shoulders are held by thejamb-catch, the bolt slipping through the socket on the door. The retail price of this fix-ture, in bronze, is $ Figure 55 illustrates a formof door-check which combinessome of the features of bothof the foregoing fixtures,though taking up more spacewhen applied. It retails at$ in either nickle-plate orbronze. MORTISED DOOR-BOLTS. In addition to the ordinaryloc
Builder's hardware; a manual for architects, builders and house furnishers . Fig. 54. Door-fast. Sargent & Co. catch on the door-jamb in such a manner that when the dooris opened and the bolt tilted the shoulders are held by thejamb-catch, the bolt slipping through the socket on the door. The retail price of this fix-ture, in bronze, is $ Figure 55 illustrates a formof door-check which combinessome of the features of bothof the foregoing fixtures,though taking up more spacewhen applied. It retails at$ in either nickle-plate orbronze. MORTISED DOOR-BOLTS. In addition to the ordinarylock on a door, it is sometimesfound desirable to attach aplain bolt of some form, as anextra security. The formmost commonly used is knownas a mortise door-bolt, consist-ing simply of a barrel-bolt in a cylindrical case, which is-. Perkinss Door-check,mouth Wrench Co. BOLTS. 45 mortised directly into the door-style and is operated by aspindle with turn-button or knob on the inner face of thedoor. In external appearance the various makes of mor-tised door-bolts are very much alike, though some are finishedso as to require no other mortising than can be done with anauger, while others require more hand-work in the application. Figure 56 illustrates a complete bolt, and also shows oneform of internal arrangement. When the bolt is thrown, theshoulder on the follow, B, is turned so as to bring it verynearly on a line with the centre of rotation of the spindle, thuslocking the bolt. The spring, C, tends to keep the shoulderfrom rising. The simplest and most ingenious mortise door-bolt whichhas come to our attention is the one manufactured by Sargent& Greenleaf, designatedas the Gem mortise-bolt, Figure 57. It con-sists simply of a solidbolt completely fillingthe diameter of the bolt-case. The coggedspindle works o
Size: 1870px × 1336px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidbuildershard, bookyear1890
