US92662A - Improved hinge - Google Patents

Description

einem 5mm! new eine.

JOHN D. SHEPARD AND RICHARD W. ENGLISH, OF BUFFALO, NEW YORK, ASSGNORS TO JOHN D. SHEPARD.

Leners 'Patent No. 92,662, zaad .my 13, 1869.

IMPROVED HINGE.

The Schedule referred te in these Letters Patent andk making part 0f the same.

To all whom 'it may concern:

Be. it known 'that we, JOHN D.-SHEPARD and Rion- ARD W. ENGLISH, of the city of Buffalo, in the county of Erie, and State of New York, have invented a cer-- tain new ,and useful Improvement in Self-Locking Blind-Hinges; and We do hereby declare that the'following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a top plan 4view of thel lower pair of hinges, with the blind closed.

Figure 2 is an edge view of the same, with the blind open.

Figure 3 is a top plan view of the lower leaf, with the pintle of the other leaf shown in section on the line x-x of iig. 2.

Figure 4is a plan view of the lower leaf, looking from below upward, and represents the position in which the pattern is placed in the mould for casting.

Our invention consists in the special manner or form of constructing the lower pair of hinges for blinds, whereby they are rendered"automatically double-locking, when the blind is thrown open.

Aln constructing our improved hinge, wemake two leaves, C and C', each having formed thereon a vcrtical plate, or flange, a, by which they are secured to the blind and the casing, respectively, inthe usual manner, so that the leaves Gand C' shall project at right angles from the flange a, and a horizontal plane, as represented in fig. 2.

These leaves O and' C are both made of the same form on their periphery, as represented in figs. 3 and 4, they being eccentric or cam-shaped on their rear edge, and having an oi'set, o1' shoulder, g, formed on their outer edge, at a point directly opposite, and ,inl

line with the rear edge ofthe ange a, as shown clearly in fig. 3.

The adjoining faces of theleaves C and C are both` made dat, with the exception that each has on its rear portion a small flat projection, h, each"edge of. which is inclined, as shown vin figs. 2, 3, and4, these projections heilig so located, that when the blind is. opened they shall pass one over the other, and have their inner inclined edges lock over or against each other, as'v shown at e, iig. 2, when the blind is thrownentirely open.

The lower leaf G is made with an elongated opening, .or hole, c, as shown in fig. 3, the longer diameter of this opening ,standing at right angles to the Wall,

or easing A, as there represented.

The upper leaf C has' a pintle, d, projecting from thccentre of its lower face vertically, to it into the hole c, and near the lower end of this pintle is a projection, f, .standing out horizontally, as shown in figs. 2, 3, and 4.

This projection, or lug f is made of such a size as to permit the pintle d, with it on, to be inserted through the hole c, when turned the long way of the hole, and lock u nder the leaf C when turned around.

The other hinge of zthe blind may be of any suitaf ble form, or it may be a duplicate of the lone above described; and though we have spoken of this as the bottom hinge, itis obvious that it may be placed at the top, with equal facility and benefit.

lVith a hinge thus constructed, and applied to the blind in the usual manner, theV operation is as follows:

As the blind is swung open, the projections h ride one over the other, and just as the blind reaches thel point where it is to stop, the inclines e of the projections 71., working ou each other, draw the blind B inl shown in iig. 2, the locking thus being double and automatic in operation.

To unlock the blind or hinge, as is necessary to close it, the bottom kof the blind B is shoved outward from the Wall, the incline e of the upper leaf riding up on the corresponding incline of the lower leaf, the outward movement withdrawing the shoulders y from behind the edges of the anges a, when the blind is swung around and closed.

By this manner of forming the hinge, we produce a very cheap, effective, strong, and durable hinge, and, onethat can be cast complete, with the screw-holesl in, ready for use. y f

We are aware that hinges` have heretofore been made With elongated openings, and with a shoulder on one leaf for locking the blind open,.and, therefore, we do not claim them, broadly; but, having 'thus described our invention,

lVhat we claim, is-

A hinge,'having its leaves provided with the two projections, or inclines h, and the two shoulders g, arranged to lock against therear edges of the flanges a, substantially as described, whereby the hinge is rendered automatically double-locking, as set forth.

In witness whereof, We `have hereunto signed our names, in the presence of twosubscribing witnesses.

JOHN D. SHEPARD. RICHARD W. ENGLISH.

lVitnesses:

W. J. CHAMBERLIN, J. R. BRAKE.

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