Builder's hardware; a manual for architects, builders and house furnishers . 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 screw
Builder's hardware; a manual for architects, builders and house furnishers . 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 122. Warner Door-spring,Warner Manuf g. Co. DOOR-CHECKS. A door-check is understood to be anything which will holdthe door either open or shut, or which will keep the door fromslamming when closed. All the door-checks in the market arecombined, directly or indirectly, with some form of some cases the spring is a part ofthe check, but more often the springis a separate fixture, and is used as anauxiliary to the action of the of tha simplest forms of door-check is that shown by Figure consists of a strong band orspring of flexible steel which is at-tached by a proper holder to thehead of the door-frame, so as to project about half an inchbelow the soffit. The door, in closing, catches on theshoulder at the end of the spring, forcing it up against thesoffit of the door-frame, while the pressure of the spring on thehead of the door keeps it from slamming, and in a measure also
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