Builder's hardware; a manual for architects, builders and house furnishers . part of the jamb-pocket. Alittle reasoning will show one that the door in this manner isheld absolutely free from either the top or the bottom of thedoor-opening, and can be easily moved forward or cannot settle without the scissors part spreading out, and asthe movable roller ends are on opposite sides, that is, one onthe joint and one on the door; any tendency to spreadingout of the rollers is counteracted by the opposite ends of thebars, which are always on the same level. In practice, thehanger, when p
Builder's hardware; a manual for architects, builders and house furnishers . part of the jamb-pocket. Alittle reasoning will show one that the door in this manner isheld absolutely free from either the top or the bottom of thedoor-opening, and can be easily moved forward or cannot settle without the scissors part spreading out, and asthe movable roller ends are on opposite sides, that is, one onthe joint and one on the door; any tendency to spreadingout of the rollers is counteracted by the opposite ends of thebars, which are always on the same level. In practice, thehanger, when properly set, works to perfection. The doornever can bind, but can be operated by the slightest pressurein one direction or the other. Figure 160 shows a compoundhanger on the same principle for use in very wide doors. Thedifference is simply that there are two hangers joined by boltsinstead of one. Figure 161 shows a trussed hanger, which isused for doors that are wider than they are high. It may besaid, incidentally, that these door-hangers can be exactly re- Chapter Fig. I 59. Prescott HangerMfg. Co. 106 BUILDERS HARDWARE. Chapter vi. versed; that is to say, the fixed ends may be at the top insteadof the bottom. The Prescotthanger is used to greatadvantage for elevatordoors, as it permits ofan opening the entirewidth of the car, if de-sired, while the ordi-nary width would behalf that size. In sucha case, a door acrosshalf of the opening ishung with ordinarybutts, and the rest ofthe space is closed witha door hung by Pres-cott hangers to the
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