US85977A - Improvement in hinges - Google Patents

Description

N s PHOTOvLITHOGRAPHER, WASH NGTDN D C STATES PATENT" OFFICE'.

A. VVHELAN, OF WASHINGTON, `DISTRIOT OF COLUMBIA, ASSIGNOR TO HIMSELF AND JOSEPH W. PARE-ISH, OF SAME PLAGE.

IMPROVEMENT IN I-IINCT'ES.

iSpem'jcat/on fowning part of Letters Patent No. 85,977, dated January 19, 1869.

To all Iwhom Iit may concern Be it known that I, ALEXANDER WHELAN, oi' the city ot' Washington, in the county of Washington and District of Uoluinbia, have invented a new and useful Improvement in H iuges for Window-Shutters and other similar uses; and I do hereby declare that the following is ai'ull, clear, and exact description thereof, reference bein g had to the accompanying drawings and the letters oi'rei'erenee marked thereon, in which- Figure l is a View of an open hinge made in accordance with niy invention. Fig. 2 is a view of that part of the hinge which is attached to the window-frame; and Fig. 3 isa sectional view of that part of the hinge 'which is attached to the shutter in the line x, Fig. Vl.

A is the part of the hinge to be attached to windowf'raine, and B the part to be attached to the shutter. C is the pivot on which the movable part of the hinge turns. fi t" are helical inclined shoulders at the hase of the pivot U. There are two opposite projections at the b ase of said pivot,'each forming two inclined shoulders, t and t', meeting at their upper extremities, and forming V-shaped points o and n on said projections. The inclinez' is somewhat more inclined, and consequentlyr somewhat longer, than the incline t. The socket l) in the part B, into which the pivot C tits, has at its base inclined helical shouldersj and j', exactly corresponding in form with the inclined shoulders i t" of the pivot. The inclined shoulders ot' the pivot and the socket are so located that whenever the hinge is opened, so that the two wings A and B will be in the saine plane, the socket will come down on the pivot to its base, forming a close joint. And so, again, when the shutteris thrown open, so as to close the leaves oi' tho hinge one upon the other, the socket will iitV down upon the base of the pivot in like manner, forming a close joint. Thus, the socket being closed at its upper end, and a perfectly tight joint being formed, whether the shutter be open or closed, no water can enter any part of the joint, to cause a rusting of the metal, or ice in winter. The inclines ot' the pivot and socket are so arranged that when the shutter is thrown clear open against the wall, and the leaves, A and B of the hinge are in the same plane, the incline t" of the pivot is in close contact with the incline j. of the socket, and this will hold the shutter back against the wall until considerable force is applied to move it, thus obviating the necessity of any other fastening to hold the shutter against the wall. But when suliieient force is applied to overcome this resistance, the moment the shutter begins to turn on the hinge, the in clinej of the socket will rise upon the incline i of the pivot, elevating the shutter, until the points ot' said inclines pass each other, at which time the shutter will beein to descend, the inclinej of the socket sliding down on the incline 1', of the pivot; and said inclines are so arranged that the socket will drop clear down to the base of the pivot before the upper part of the shutter reaches the cap of the windowfraine, andthe shutter will swing home in the same plane, clearing said cap, none `ot the inclines coming in contact. In like manner, in opening the shutter, it will swing in the sanne plane, none of the inclines coming in contact until it has cleared said cap of the windowframe.

I do not limit my claim to this invention in its application to Window-shutters, but claim its application to doors and gates.

I do not claim, broadly, thcleaves oi'a hinge with the double set of inclines; but

What I do claim as new, and desire to secure by Letters Patent of the United States, 1s-

The combination and arrangement of the two sets of inclines t' and i and j and j', with relation to the pivot and socket of a hinge,

-constructed as described, whereby the shutter is made to clear the windowframe before being raised by the said inclines.

A. WHELAN. Witnesses: J. J. CooMns, A. L. MERRiMAN.

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