Builder's hardware; a manual for architects, builders and house furnishers . e seems to be an idea with many people thatthe overhead hangermore easily gets outof order, and that itis more is a mistake, forthere is hardly ahanger in the marketthat will not give sat-isfaction if properlyapplied, while anyone who has had ex-perience with sheavesand rail at the bottomcan testify to thetrouble which willsometimes occur, withthe settlement of thewoodwork throwingthe door out of plumbor obstructions getting on the track and throwing the wheelsoff. Some of the overhead hangers require
Builder's hardware; a manual for architects, builders and house furnishers . e seems to be an idea with many people thatthe overhead hangermore easily gets outof order, and that itis more is a mistake, forthere is hardly ahanger in the marketthat will not give sat-isfaction if properlyapplied, while anyone who has had ex-perience with sheavesand rail at the bottomcan testify to thetrouble which willsometimes occur, withthe settlement of thewoodwork throwingthe door out of plumbor obstructions getting on the track and throwing the wheelsoff. Some of the overhead hangers require more care in set-ting, and others have some special adjustment which mustbe understood; but the principle on which they all work isso simple that, to the uninitiated, there seems to be but littlechoice between the various kinds. The ordinary mortised sheave, of which Figure 147 is atype, runs on a brass rail, which is generally made with araised section, though a form is sometimes used which is chan-nelled instead of being raised. The former will be something Chapter -door Hangerare Co. Sliding-doorKails. 96 B UILDERS HARD WARE. Chapter VI. Parlor-door Sheaves. Parlor-door Hangers. to stub the foot against; the latter will collect dust. The onlyform of rail in the maiket, which presents neither of thesedifficulties, is the Climax, Figure 148. This consists of adouble brass track with a central strip, which is held flush withthe two sides by springs inserted at intervals in the track. Aspecial form of wheel is manufactured to go with this wheel, in passing along over the rail, presses down thecentral strip, forming a groove for the wheel to run in. Whenthe door is opened, the springs force the flexible central stripup again, so that when the doorway is entirely clear the appearance is of a singlebrass plate perfectly flushwith the floor. The listprice of this rail is sixtycents per foot in brass. Besides the commonpattern of mortisedsheaves, shown by Figure147, th
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