US310409A - William gilfillan - Google Patents

Description

(model') w.- GILFILLALN.

SPRING HINGE;

No. 310,409. r Patented Jan. 6, 1885.

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\VILLTAM GILFIL'LAN, OF NE HAVEN, CONNECTICUT, ASSIGNOR TO FlARCmNT & CO., OF SAVE PLACE.

SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 310,409, dated January 6, 1885.

A pplieation filed June 30, 183i.

1'0 aZZ whom it may concern.-

Be it known that 1', WILLIAM GI.I.FILLAN, of N ew Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Spring-Hinges; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-- Figure 1, a face view of a three-part hinge showing the three parts turned into the same plane Fig. 2, atransvcrsc section through the three parts cutting through the plane of the holes in one ear and through the pintle between the cars on the opposite side, and the hinge as applied to a door.

This invention relates to an improvement in that class of spring-hinges in which a spiral spring is arranged on the pintle, so as to apply its force between the two leaves of the hinge, and is an improvement upon the invention for which Letters Patent were granted to me, assignor to Sargent & Co., No. 262,400, dated August 8, 1882.

In my previous invention the principal object was to enable the removal of the power of the spring without entirely disconnecting the spring; and to accomplish the object, the two leaves of the hinge were constructed with corresponding ears near each end, so as to leavea space between for the introduction of the spiral spring, a pintle introduced through the cars at one end and through the spiral spring into the cars at the opposite end,the pintle grooved so as to receive and hold one end of the spiral spring while the other rests against one of the leaves. The pintle was made movable longitudinally, it being constructed with a head at one end to rest upon the ear of that leaf of the hinge on which the spring is to bear and the adjacent surfaces of the head of the pintle, and the ears were constructed with teeth in ratchet form, so as to interlock the one with the other, and so that the pintle could be turned to wind the spring and held by the teeth on the head and car when properly set or released by raising the pintle, so that the teeth on its head might escape the notches in the ear. Vhilc ihlodcl.)

this construction accomplishes the object of ment from the ears below, or the proper engagementwith the notches and teeth.

The object of my present improvement upon my said invention is to avoid the longitudinal movement of the pintle; and it consists in the construction as hereinafter described, and more particularly recited in the claim.

In illustrating my invention 1 show it applied to a three-part hingethat is to say, a hinge upon which the door may swing either to the right or left. i

In the illustration, A represents the stationaryjamb, and B the door. One leaf, C, ofthe hinge is fixed to thejamb. The other leaf,D,is fixed to the door. The intermediate leaf, E, is hung by one edge to one leaf, C, and by the other to the leaf D, and so that the door may swing in either direction, as indicated in broken lines, and as in hinges of this general construction. The one lcal' D is constructed with an ear, F, at one end, and a corresponding ear, G, at the other end. The leaf E has an ear, H, near its upper end, and a corresponding ear, J, near its other end, the ears Hand J being constructed soas to enter between. the two cars F and G, and as in my previous patent, the space between the ears H and J be ing left open to receive the spiral spring.

L is the pintle, which extends down through the ears,the ears being bored for the purpose. That portion of the pintle between the ears H and J is preferably made of triangular shape, as seen in Fig. 2, and on one of its sides it is constructed with a longitudinal groove, (1, which extends up to the top of the space be tween the two cars. Thatportion of the pintle which stands in the ears F H is of a diameter corresponding to the triangular portion of the pintle below. Thatportion of the pintle below the triangular portion is of less diameter, the holes through the respective ears correspond 111g.

The upper end of thepintlc is provided with an ornamental head or tip, M, constructed to rest upon the ear of theleaf D. At the other end it extends through the ear, its projecting portion screw-threaded. Onto this a nut, N, is screwed, which nut corresponds in shape substantially to the head M at the opposite end. The nut thus screwed onto the pintle prevents longitudinal movement of the pintle. Between the two ears J L the spiral spring P is placed, and before the pintle is introduced one end, I), rests against theleafE. The other end, (I, is turned inward into the groove a, as seen in Fig. 2, and so that the torsion power of the spring being resisted by the end I) resting against the leaf E,is imparted to the pintle, tending to rotate it. Into that portion of the pintle which stands in the ear F one or more radial holes, 0, are made, and through the ear F in the plane of the holes a a radial hole, f, is made to receive a pin, h, and so that the pin h introduced through the holefin the car may enter the one of the holes which it happens to stand in line with. The pin so entering two being introduced together.

the pintle couples the pintle with the leaf D, so that for the time being the leaf D turns with the pintle as if a permanent part of it.

Through the head M one or more holcs,Z,are made to receive one end of a lever, and so that a person holding the lever may rotate the pintle it the pin it be removed.

Vhen it is desired to set the spring, or increase or decrease its tension, the lever is applied into the hole Z in thehead of the pintle, and turned so as to relieve the pressure on the pin it. Then that pin is withdrawn and the pintle turned untilthe required pressure is at tained. Then the pin 71 is reset to couple the pintle with the leaf D, and this adjustment is made without longitudinal movement of the pintle.

The spiral spring is inclosed by a tubular casing, R, which may be made from sheet metal, and corresponding in diameter to the respective ears. The spring is placed within the cylinder before it is set into its place, the The cylinder ineloses and hides the spring, and gives to it the appearance of a cylinder cast upon or formed as an integral part of the hinge, but being made separate from the hinge permits the removal or introduction of the spring with greater facility than when the cylinder is made as a permanent part of the hinge.

In the ease of a hinge to swing in both directions, as shown,the third leaf is constructed the same as the leaf D,and the opposite side of the leaf E with corresponding ears, the pintle and spring being applied in like manner, and substantially as in common three-part hinges.

I have illustrated the head as constructed with holes for the introduction of a leaf as a convenient means for turning the pintle to adjust the spring, but it will be understood that any of the known equivalents for such a hole may be substituted therefor.

From the foregoing it will be understood that I do not claim, broadly, a spring-hinge with the spring engaged with a pintle and one leaf, the pintle made adjustable so as to increase or adjust the tension of the spring; but

\Vhat I do claim is In a spring-hinge, the combination of the leaves constructed with their respective ears F G and H J,with the pintle L, having a longitudinal groove, a, and extending through the ears to form a bearing on which the leaves will turn, the pintle constructed with a head, M, at one end, screw-threaded at its opposite end, the nut N, fitted to said screw-threaded end of the pintle, a spiral spring around said pintle and between the ears of the one part, one end bearing upon one leaf, the other end turned inward and extending into the groove of thepintlefthe pintle within one of the ears on the leaf 1) constructed with one or more radial holes, (2, the ear with a corresponding hole, f, and the pin 71, substantially as and for the purpose described.

WILLIAM GILFI'LLAN. \Yitnesses:

(tins. L. BALDYIN, \VM. S. Coorcn.

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