US1080456A - Spring-hinge. - Google Patents

Description

0. KATZENBERGER.

SPRING HINGE.

APPLICATION TILED JULY 24, 1913.

1,080,456. Patented Dec. 2, 1913.

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COLUMBIA PLANOGRAPH CO..WA$HINOTON, D. c

ATTORNEYS imrrnp STATE? PATENT orsion.

OSCAR KATZENBERGER, OF CHICAGO, ILLINOIS.

SPRING-HINGE.

To all whom it may concern Be it known that I, Oscar: Kivrznmninenn, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented a new and Improved Spring-Hinge, of which the following is a full, clear, and exact description.

This invention relates to improvements in spring hinges, and has for an object to provide an improved structure in which one of the heads is connected with the spring so as to wind the same, and is arranged with means for permitting a free rotation of the head While positively preventing any removal thereof.

In carrying out the object of the invention a hinge structure is provided in which is arranged a spring connected to a head at one end of the hinge, said head being rigidly secured to one leaf of the spring. At the opposite end of the barrel of the hinge an adjusting head is provided which is connected with a spring and which accommodates a locking ring. The locking ring is designed to fit into a notch in the head, and also to overlap and fit into a notch in the barrel of the hinge, whereby the head cannot be removed without breaking the ring.

In the accompanying drawings-Figure 1 is a plan view of a hinge embodying the invention; Fig. 2 is a top plan view of the structure shown in Fig. 1; Fig. 3 is a section through Fi 2 on line 3-3, the same being shown on an enlarged scale; Fig. 4: is a section through Fig. 3 approximately on line 4%; and Fig.- 5 is an enlarged detailed perspective view of the removable tension head.

Referring to the accompanying drawings by numeral 1 and 2 indicate the leaves of a hinge, the same being formed with loops 3 and 41 defining a barrel 5. The barrel 5 carries a sleeve 6 which acts as a pintle for holding the members 3 and 1 together, and for providing a proper bearing surface therefor in order that the leaves may move back and forth freely. At one end of the hinge a fixed head 7 is provided which is secured to loop 3 by a suitable pin 8. Head 7 is provided with an inwardly extending portion 9 having a notch in which one end of spring 11 projects, whereby one end of the spring is held against movement. The opposite end of spring 11 to that engaging notch 10 is adapted to project into notch Specification of Letters Patent.

Application filed July 24, 1913.

Patented Dec. 2, .1913.

Serial No. 780,923.

12 in projection 13 formed on the adjusting head 14. When forming the adjusting head 14 the same is provided with any desired number of openings or pin receiving apertures 15. A locking pin 16 is provided which may be inserted in any of the openings or apertures 15 so as to prevent a reverse movement of the head, the pin 16 acting against leaf 2.

When preparing the hinge for use after it has been mounted on a door or other article a pin or leverage device of any kind is inserted in any of the apertures 15 and the head 1 1 rotated to any desired extent so as to bring spring 11 under tension. After spring 11 has been in this manner brought under tension locking pin 16 is placed in position and the pin or lever which was used to rotate the head will then be removed.

In order to prevent head 14 from becoming disengaged the same is provided with an extension 17 in which is formed an annular groove 18. This annular groove is designed to register with an annular groove 19 formed in barrel 5. The annular groove 18 is designed to accommodate a spring ring 20 which is formed so as to project approxi mately half way into groove 18 under ordinary circumstanees, and to project into groove 19 to the bottom thereof under ordinary circumstances so that head 1 1-. cannot be removed without breaking certain of the parts. In applying the head 14L ring 20 is compressed so that it lies within groove 18 until groove 18 comes opposite groove 19, whereupon the spring 20 will. expand into groove 19 and project a suliicient distance into groove 18 to lock head 1 1 against removal. It will of course be evident that the head 18 by reason of this structure cannot be removed but may freely rotate so as to bring spring 11 under tension after the hinge has been placed in position or at any other time, as desired.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is- In a spring hinge of the class described, a pair of leaves formed with knuckles or barrel portions, a pintle for holding said knuckles in alineinent, one of said knuckles having an. annular groove therein, a head rigidly secured to the knuckle on the opposite end of the pintle to the knnclde having the annular groove, a removable head arranged in the end of the hinge having the annular grooved knuckle, said last mentioned head being formed with an annular groove, a spring connected with both of said heads adapted to give the heads a tendency to move in opposite directions, a split resilient ring arranged in the annular groove in said last mentioned head, said last mentioned groove being of a suflicient depthfor accommodating the entire ring, and the annular groove in said knuckle being of a depth to accommodate substantially half of said ring, whereby when said ring expands the same is limited by the bottom of said last mentioned groove, and said last mentioned head is prevented from being removed while permitting free rotation, and a locking member connected with said last mentioned head acting on one of said leaves for holding said spring under tension.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

OSCAR KATZENBERGER.

WVitnesses:

LE0 E. ZEOK, ADoLPI-I PAUsT.

Copies of this patent may be obtained for five eents each, by} addressing the Commissioner of Patents.

' Washington, D. C.

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