Builder's hardware; a manual for architects, builders and house furnishers . Fig. I I 9. Torry Wagoner & Williams Co. Fig. I 20. Peabody W. Fig. 12 1. Devore Door-spring. Freeport Hardware Manufg. Co. simple door-springs. Figure 121 shows a form which is madeby the Freeport Hardware Manufacturing Company. This DOOR SPRINGS, CHECKS, AND HANGERS. spring has a uniform tension, holds the door firmly whenclosed, and when the door is open about 120 degrees, theforce of the spring is reversed andwill hold the door open. Anotheradvantage of this form is that thes
Builder's hardware; a manual for architects, builders and house furnishers . Fig. I I 9. Torry Wagoner & Williams Co. Fig. I 20. Peabody W. Fig. 12 1. Devore Door-spring. Freeport Hardware Manufg. Co. simple door-springs. Figure 121 shows a form which is madeby the Freeport Hardware Manufacturing Company. This DOOR SPRINGS, CHECKS, AND HANGERS. spring has a uniform tension, holds the door firmly whenclosed, and when the door is open about 120 degrees, theforce of the spring is reversed andwill hold the door open. Anotheradvantage of this form is that thespring is easily unhooked and re-hooked from the door, and also fromthe jamb without removing the action of the spring will be under-stood from the illustration. Figure122 shows a different form of spring, though on the same prin-ciple as the Devore. It has all the advantages of the onedescribed and acts in precisely the same manner, though it isslightly larger. Both of these forms are exceedingly ingen-ious and efficient, and are sold a great deal in some parts ofthe country. Chapter VI.
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