Builder's hardware; a manual for architects, builders and house furnishers . 104, will fully serve as types of a great variety of double-acting spring-hinges listed in the catalogues of the various man-Empire Hinge, ufacturers. In the Empire spring-hinge the coiled springsare exposed to view, and are tightened by inserting a lever inthe cogs at the bottom of the hinge and drawing it around untilthe catch A on the top of the hinge pin is held by a little pro-Star Hinge, jection on the hinge plate. In the Star hinge the springs are encased, thoughthey are set up inessentially the samemanner. Bot
Builder's hardware; a manual for architects, builders and house furnishers . 104, will fully serve as types of a great variety of double-acting spring-hinges listed in the catalogues of the various man-Empire Hinge, ufacturers. In the Empire spring-hinge the coiled springsare exposed to view, and are tightened by inserting a lever inthe cogs at the bottom of the hinge and drawing it around untilthe catch A on the top of the hinge pin is held by a little pro-Star Hinge, jection on the hinge plate. In the Star hinge the springs are encased, thoughthey are set up inessentially the samemanner. Both thesehinges are excel-lent of their kindand are about asgood as anything inthe market. Figure 105 showsthe Crown hinge, a form whichpermits of a littlenicer adjustmentthan the others inthat the ratchetsabout the spiralspring are quiteclose together andVan Wagone,- the tension can beincreased to any de-sired strength. This is a strong and durable hinge, althoughnone of the foregoing hinges should be used for outside work,as they are liable to rust and clog. Crown 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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