US135914A - Improvement in door-springs - Google Patents

Improvement in door-springs Download PDF

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Publication number
US135914A
US135914A US135914DA US135914A US 135914 A US135914 A US 135914A US 135914D A US135914D A US 135914DA US 135914 A US135914 A US 135914A
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door
wheel
spring
springs
improvement
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/16—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for sliding wings

Definitions

  • Fig. 2 is a side elevation of the same.
  • My invention has for its object to provide a device by the use ot' Which a door may be made self-closing; and it consists in a spring, one end of which is permanently attached to the facecasing, and the other end coiled around and attached to a Wheel pivoted upon an angle-bar, Which lis firmly afiixed to the door.
  • the arrangement of the spring is such as to uncoil as the door is opened, and to recoil around the Wheel by its own elasticity, thereby closing the door, all of which will be more fully understood by the following description:
  • A represents the face-casing of the door-frame, and A the door, both of which are arranged in the usual manner.
  • B is a metal angle-bar, which is permanently affixed to the door and extends outward at a right angle therefrom. Pivoted upon the outer extremity of this bar is a Wheel, C, which .is so arranged as to freely revolve thereon.
  • a iiat metal spring, D Firmly secured to and coiled around the periphery of this Wheel is a iiat metal spring, D, one end of which is permanently attached to the face-easing, as shown in Fig. 2.
  • this spring is such that as the door is opened the spring is made to uncoil from around the Wheel, and as power is removed from the vdoor the elasticity of the spring causes the same to recoil around the wheel, thereby closing the door.

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  • Securing Of Glass Panes Or The Like (AREA)

Description

f UNITED STATEs- AUSTIN D. HOFFMAN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF HIS PATENT OEEICE.
RIGHT TO NATHAN FRIEDMAN, OF SAME PLACE.
IMPROVEMENT IN DOOR-SPRINGS.
Specification forming part of Letters Patent N0. 135,9 14H1, dated February 18, 1873.
' ment, and Fig. 2 is a side elevation of the same.
Similar letters 0f reference indicate like parts in both figures of the drawing.
My invention has for its object to provide a device by the use ot' Which a door may be made self-closing; and it consists in a spring, one end of which is permanently attached to the facecasing, and the other end coiled around and attached to a Wheel pivoted upon an angle-bar, Which lis firmly afiixed to the door. The arrangement of the spring is such as to uncoil as the door is opened, and to recoil around the Wheel by its own elasticity, thereby closing the door, all of which will be more fully understood by the following description:
. In the drawing, A represents the face-casing of the door-frame, and A the door, both of which are arranged in the usual manner. B is a metal angle-bar, which is permanently affixed to the door and extends outward at a right angle therefrom. Pivoted upon the outer extremity of this bar is a Wheel, C, which .is so arranged as to freely revolve thereon.
Firmly secured to and coiled around the periphery of this Wheel is a iiat metal spring, D, one end of which is permanently attached to the face-easing, as shown in Fig. 2.
The action ot' this spring is such that as the door is opened the spring is made to uncoil from around the Wheel, and as power is removed from the vdoor the elasticity of the spring causes the same to recoil around the wheel, thereby closing the door.
Having thus described my invention, I
claiml The combinationV of the angle-bar B upon the door, wheel C, and spring D, as described,
the spring secured above the door and actingl to close the same by coiling around the Wheel, substantially as specified. Y
The above specification of my invention signed by me this 4th day ot' December, 1872.
AUSTIN I). HOFFMAN.
Witnesses:
N. H. SHERB'ORNE, A. S. ALEXANDER.
US135914D Improvement in door-springs Expired - Lifetime US135914A (en)

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US135914A true US135914A (en) 1873-02-18

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