US1046209A - Gravitating hinge. - Google Patents

Description

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AAAAAAAAAAAAAAAAA UG.21,1912. 1 ,O46,209, Patented Dec. 3,1912.

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JOSIAS J. MERCER, OF CHOWDER, MISSOURI, ASSIGNOR OF ONE-THIRD TO SAMUEL D. ADKINS AND ONE-THIRD TO FLOYD D. MARSHALL, BOTH OF CROWDER, MISSOURI.

GBAVITATING HINGE.

To all whom it may concern.

Be it known that I, JOsIAs J. MERGER, citi- Zen of the United States, residing at Crowder, in the county of Scott and State of Missouri, have invented certain new and useful Improvements in Gravit-ating Hinges, of which the following is a specification.

The present invention relates to certain new and useful improvements in hinges of that general type which admit of the door or swinging member being readily moved into an open position and provide for the automatic return of the door to a closed position as soon as released.

Among the objects of the invention is to provide a hinge of this character which embodies novel features of construction whereby the use of a metallic spring is eliminated, thereby greatly simplifying the construction of the hinge and also reducing the cost of construction thereof.

Further objects of the invention are to provide a hinge of this character which is comparatively simple and inexpensive in its construction, which admits of the swinging closure being moved freely into an open position and provides for the return thereof to a closed position as soon as released, and which embodies few and durable parts adapted to be quickly assembled or taken apart as may be found necessary.

With these and other objects in view, the invention consists in certain novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointed out in the appended claims.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a side elevation of a hinge constructed in accordance with the invention, portions being broken away and shown in section, Fig. 2 is a detail perspective view of the hinge, the various parts thereof being separated, and Fig. 3 is a side elevation of a portion of the cylindrical post which is provided with the cam groove.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

Specifically describing the present em- Specification of Letters Patent.

Application filed August 21,

bodiment of the invention, the numeral 1 Patented Dec. 3, 1912.

1912. Serial No. 716,296.

designates a gate post or other fixed member upon which the gate or swinging closure 2 is mounted. A pair of angle brackets 3 are secured to the gate post 1 and provide a means for supporting the pintle A of the hinge. This pintle 4; is substantially cylindrical in shape and is provided at the opposite endsthereof with the polygonal heads 5. One of the arms of each of the angle brackets 3 is formed with a polygonal opening adapted to loosely receive the corresponding polygonal head 5 of the pintle, while the op poslte arm of each of the angle brackets is adapted to be secured to the gate post by means of suitable fastening members 6.

At an intermediate point in its length the pintle 4 is provided with an annular cam groove 7, the lower portion of the groove facing away from the fixed member or gate post 1, while the highest portion of the cam groove is disposed adjacent to the gate post. A sleeve 8 is loosely fitted upon the pintle 4 so as to be susceptible of both a rotary and a longitudinal movement, one side of the sleeve being provided with a threaded opening 9. A plate 10 is adapted to be secured to the swinging closure 2 by suitable fastening members 11, and one edge of this plate 10 is provided with a threaded lug l2 adapted to be screwed into the opening 9 of the sleeve 8. This lug 12 terminates in a reduced and unthreaded end 12 which pro jects interiorly within the sleeve 8 and is loosely received within the cam grove 7 of the pintle 4.

WVith the above construction it will be obvious that the swinging closure 2 will normally assume a position of rest with the lug 12 at the lowest portion of the cam groove 7. The closure is then in a closed position, although it can be swung freely in either direction into an open position. When the gate or closure 2 is swung into an open position, it will be obvious that the sleeve 8 will be rotated upon the pintle 4t, and the reduced end 12 of the lug 12 will ride in the cam groove 7 so as to move the sleeve 8 longitudinally and upwardly upon the pintle. The gate or swinging closure 2 will thus be bodily raised a very slight extent when swung into an open position. As soon as the gate is released, the force of gravity acting upon the same will tend to swing the same back to its original or closed position, with the reduced end 12 of the lug 12 at the lowest end of the cam groove 7. It will thus be obvious that the gate or swinging closure can be swung freely in either direction, although it will. always return to a closed position as soon as released.

As shown by Fig. 2, the lug 12 is preferably ofi'set from the plane of the plate 10, so that when the plate is secured to the side of the gate or swinging closure, the lug will project directly from the edge of the gate, instead of being offset therefrom.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is

1. A hinge including a pintle provided with a cam groove, supporting brackets for the pintle, a sleeve formed with a lateral opening and fitted loosely upon the pintle so as to have both a rotary and a longitudinal movement, a hinge plate adapted to be secured to a swinging closure, and a lug projecting from the hinge plate and adapted to be rigidly fitted within the lateral opening of the sleeve with the end thereof projecting interiorly within the sleeve and engaging the cam groove of the pintle, said lug cooperating with the cam groove of the an intermediate point in the length thereof with a cam groove and formed at its opposite ends with polygonal heads, a pair of angle brackets, one of the arms of each of the angle bracketsbeing formed with a polygonal opening adapted to loosely receive the corresponding polygonal head of the pintle, while the opposite arm thereof is adapted to be secured to a support, a sleeve loosely mounted upon the pintle for both a rotary and a longitudinal movement thereon, a swing closure rigid with the sleeve, and an interiorly projecting lug rigid with the sleeve, said lug engaging thecam groove of the pintle and cooperating therewith to raise the sleeve and swinging closure when the latter is moved out of normal position.

In testimony whereof Iaflix my signature in presence of two witnesses.

JOSIAS J. MERGER. Witnesses S. D. ADKINS, F. D. MARSHALL.

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

Washington, D. 0.

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