US1203114A - Hinge. - Google Patents

Description

N. B. HURD.

HINGE.

APPLICATION FILED SEPT. 20, 1915.

133,1 1%. Patented Oct. 31,1916.

Ian A.

NORMAN IB. HURD, OF NEW BRITAIN, CONNECTICUT,

ASSIGNOR TO THE AMERICAN HARDWARE CORPORATION, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

HINGE.

Specification of Letters Patent.

Patented Oct. 31, 1916.

Application filed September 20, 1915. Serial No. 51,519.

To all whom it may concern:

Be it known that I, NORMAN B. Home, a

citizen of the United States of America, residing at New Britain, Connecticut, have invented a new and useful Hinge, of which the following is a specification.

This invention relates particularly to door hinges and the aim of the invention is to provide simple and effective means for preventing separation of thehinge leaves when the hinge occupies a given position, as when the door to which it is applied, is closed. I I

In carrying my invention intoeficct, I employ a locking device which in a pre determined position of the hinge leaves or members is held by one of the hinge leaves in looking engagement with the hinge pin which pivotally connects, the two hinge leaves, thereby preventing withdrawal of the hinge pin. In one embodiment of the invention this locking device is in the form of an annular washer which is mounted nonrotatably on one of the hinge leaves and is forced by the other hinge leaf into locking engagement with a shoulder on the hinge pin.

The details of structure will appear more clearly as the specification proceeds.

The accompanying drawing illustrates the invention embodied in several practical and preferred forms, but it will be understood that changes and modifications may be made without departing from the true spirit and scope of the invention.

Figure 1, is a View in side elevation of a hinge having my invention embodied therein. Fig. 2, is a horizontal. sectional view taken substantially on the plane of the line 22 of Fig. 1 and showing the hinge applied to the mounting of a door, the door in this case being in the open position. Fig. 3, is a view similar to Fig. 2 with the door shown in the closed position and the locking device actuated to prevent withdrawal of the hinge pin. Fig. 4, is a detail perspective view of the locking washers and the portion of the hinge pin with which it engages.

The two members or leaves of the hinge illustrated are designated 7 and 8 and the hinge pin which pivotally connects them is designated 9. The two hinge members are provided at their meeting edges with interfitting or complementary lugs or portions 7 and 8 having bores 10 which register when the parts are assembled to receive the hinge pin. h

The hinge pin locking device is designated 15 and the same consists in the first form illustrated of an annular washer formed with a bore 16 to receive the hinge pin and arranged to be forced by one of the hinge leaves into interlocking engagement with a shoulder 17 on the hinge pin. This locking washer is seated in an opening 18 surrounding the hinge pin bore. This seat for the locking washer is formed in the present instance by simply cutting a slot in the intermediate hinge loop or lug 8, intersecting the hinge pin bore therethrough and just wide enough to receive the washer. The washer is held against rotation by suitable means,-in the present instance by providing it with a projecting pin or lug 19 engaging in a socket 20 in the hinge leaf 8.

The locking washer is forced or held in interlocked engagement with the shoulder on the hinge pin by reason of a portion 21 on the hinge leaf 7 engaging with a protruding portion 22 of the washer so as to displace the washer laterally and thereby hold it interlocked with the shoulder of the hinge pin. The protruding portion 22 of the locking washer is eccentrically disposed with respect to the bore 16 so that this displacement will take place and the disposition of this eccentric projecting portion 22 determines the point in the position of the hinge at which the hinge pin will be locked against withdrawal.

In the illustration the hinge is shown applied to the support of a door, the leaf 7 being shown secured to the door 25 and the leaf 8 secured to the door casing 26. Also the parts are so designed that the locking washer will lock the hinge pin when the door is in the closed position. In Fig. 2 the door stands open and the hinge pin can, if desired, be withdrawn. The locking washer in this position has enough freedom of movement to allow it, if not already alined with the hinge pin, to slide to one side or the other enough to bring the bore therein into concentric relation with the hinge pin. This is the condition indicated in this View. As the door swings to the closed position as indicated in Fig. 3 the actuating portion 21 on the hinge leaf 7 rides over the eccentric portion 22 of the washer, displacing the washer laterally and forcing it into locked engagement over the shoulder 17 on the hinge pin. It will be clear that in this position of the parts the hinge pin cannot be withdrawn. Also it will be seen that in this locked position the device which holds the locking washer against rotation cannot be reached for the purpose of freeing the washer so that it can be rotated to unlock the hinge pin.

The locking shoulder on the hinge pin may be provided in various ways and in the present disclosure the same is provided by simply cutting an annular groove-way 27 in the hinge pin at a point in line with the locking device.

It will be clear from the foregoing that my invention provides simple and very effective means for locking the hinge parts against separation and which is inexpensive and can be readily manufactured.

What I claim is 1. In a hinge construction, hinge leaves having registering bores for a hinge pin, a hinge pin engaged in said bores, one of said leaves having an opening therein surrounding the hinge pin bore, said hinge pin having a shoulder in line with said opening and a locking washer held against rotation in said opening, said washer having a bore to receive the hinge pin and provided with a projecting portion eccentric to said bore to be engaged by the other one of the hinge leaves whereby said washer willbe forced by said other hinge leaf into locking engagement with the shoulder on the hinge pin.

2. In a hinge construction, hinge leaves having registering bores for a hinge pin, a

hinge pin engaged in said bores, one of said leaves having an opening therein surrounding the hinge pin bore and a keying socket at one side of said opening, a shoulder on the hinge pin in line with said opening, a locking washer seated in said opening provided with a bore to register with the bores in the leaves, a lug on one edge of said washer engaging in the keying socket to hold the washer against rotation, said washer having an exposed portion eccentric to the bore therein and projecting into the path of movement of the other one of the hinge leaves whereby said washer will be forced by said other hinge leaf into locked engagement with the shoulder on the hinge pin.

NORMAN B. HURD.

Copies of this 'patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. Q.

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