Builder's hardware; a manual for architects, builders and house furnishers . Fig. 105. Crown Williams Co. HINGES. 69 All of the preceding double-acting hinges necessitate twocoil springs. Figure 100 shows a form of double-acting springbutt in which the force is derived entirely from a single strongcoil, which is concealed when the door is closed, working inthe thickuess of the door. This hinge has generally provedmtv satisfactory in use and is much called for, being very neatand tidy in appearance, and it is especially adapted for lightinterior doors, where it is desirable that
Builder's hardware; a manual for architects, builders and house furnishers . Fig. 105. Crown Williams Co. HINGES. 69 All of the preceding double-acting hinges necessitate twocoil springs. Figure 100 shows a form of double-acting springbutt in which the force is derived entirely from a single strongcoil, which is concealed when the door is closed, working inthe thickuess of the door. This hinge has generally provedmtv satisfactory in use and is much called for, being very neatand tidy in appearance, and it is especially adapted for lightinterior doors, where it is desirable that the hinges shall beas inconspicuous as possible. The simplest double-acting hinge, however, is the Champi-on spring-hinge, shownby Figure 107. Tins isabout as convenient andsatisfactory a door-springas is in the market, con-sisting of a single springoperating for either swing.
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