USRE10638E - Ments - Google Patents

Description

UNITED STATES PATENT OEEICE.

JAMES M. DODGE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO ALFRED H. ANDREW/TS AND IJLAGE.

HERBERT L. ANDREVS, OF SAME STOP-HINGE.

SPECIFICATION forming part of Reissued Letters Patent No. 10,638,1dated August 18, 1 885.

Original No. 221,290, dated November 4, 18N). Application for reissue led March 3l, 1881.

DIvIsIoN B.

To @ZZ whom, it may concern:

Be it known that I, JAMEs M. DODGE, formerly oi' the eity, county, and State of New York, now a resident of the city of Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvement in Stop-Hinges, which is fully described in the following specification, reference being had to the accompanying drawings, in which- Figures l, 2, and 3 respectively represent side elevations of the hinge applied to the lid of a desk, with the lid in vertical, thrownback,and in horizontal positions. Fig. 4 is a front elevation of the pintle or stud attached to a part of a desk,with the movable arm and its socket indicated by dotted lines. These figures represent a form of hinge fully described in the other division of this reissue. Fig. 5 represents a side elevation of the hinge forming the subject-matter of this division.

My invention relatesto a hinge ior desks and other articles in which one part is movable and it is desired to stop the movable part at certain points.

Heretofore stop-hinges have been made by providing for su'liicient play on a pivot to permit the movable part of the hinge to be lifted over projections on the fixed part which would otherwise arrest its motion. This kind of hinge is objectionable, for the reason that the entire weight of the movable section, to which the movable pa rt of the hingeis att-ached must be lifted over the projections in order to disengage the stop and permit the further movement of the hinged section, and also on account of the noise occasioned by the play of the two parts of the hinge when operated.

The object ot' my invention is to provide a hinge in which the movable part may be stopped and held in the position desired and released by simply turning the movable member in the proper direction. without lifting and without noise in its operation.

The invention consists in the combination, with a desk-standard having a corner and a lidlarm pivoted to the said standard and having a shoulder, of an unattaehed movable locking stop-piece automatically thrown into and out of action by the movements of the lid-arm.

hinge applied to a school-desk, the top or lid of which is intended to be hinged to the upright portion, so as to be raised and lowered. In these drawings, A represents one of the standards or end pieces of the desk, and B the stud or pintle of the hinge which is iiXed to the standard. The base of the stud orpintle is round, with a sufficient projection to keep lthe movable part in place when turned, while the remaining part projects, and is eut away at one side, as shown in Fig. 5, to form` a guidepassage and a stop for the stop-piece.

The movable part D of the hinge is-provided with a knuckle or soeket,which is fitted to receive the stud or pintle B, and is closed' so as to cover the pintle, which forms a eovered passage for the movements of the stoppiece. The stop-piece E, in the form shown, is a ball, which is placed in the passage or vacant space between the stud and the socket. The stud is so cut awayas to form a stop at e, and the socket is eut away to form a stop at b, -for arresting the movement of the hinged arm D and holding itin the position designed for use. The socket is also cut away, so as to form a passage between it and the stud, by which the stop-piece is returned to its lock`- ing position after the lid has been let down.

rIhe movable partD of the hinge is provided with a pocket or recess, F, having a shoulder, c, which carries the'stop-piece back into position for again locking the movable arm.

To operate the lid H, it is rst elevated so tha-t the stop-piece E will pass into the recess F, when the lid can be let down. The lowering of the lid carries the stop-piece around and delivers it onto the stud, and it passes down by gravity into a working position, so that when the lid is lifted slightly above its position for use the stop-piece will engage between stops a b and lock the arm when low ered to position for use.

It will thus be seen that a stop is provided for the hinge which requires no lifting, all. of the parts being operated by turning the movable part of the hinge upon its pintle in the ordinary way.

The construction is very simple and not liable to derangement, and as the wall is in- In the drawings I have represented the IOO closed. and therefore protected from dirt, the wear is very slight. V

In applying the hinge to desks the lid or top H is fastened to the socket or knuckle pieces D, so as to rise and fall with them. The standards or end pieces may also be provided with suitable stops to arrest the upward movement of the lid and hold it in an elevated position, as shown in Fig. 2 of the drawings, if desired.

Modifications may be made in the construe tion of the two parts of the hinge. The pintle may have only agroove in its end piece,through which the ball or stop piece may pass from its elevated position to its lower or working position; or this passage may be a hole drilled thriugh the body of the pintle, the arrangel ment of the pocket in the socket or knuckle being changed to correspond. The socket or knuckle may also have one or more pockets arranged in different Ways to takethe stoppiece in different positions.

Instead of the sphere shown, a cylindrical stop -piece may be employed, or an oval-shaped piece will operate in practice, though Iprefer the spherical form, as with it there is less friction and the movement is more free. It is Aonly necessary in the construction of the hinge to provide'for the locking of the stop-ball between the movable and fixed parts at the point where it is desired to stop the hinge, to provide a pocket or recess in the movable part in which the ball may bc taken from its workmay be applied not only to desks, but to many other articles in which there is a vibration of Aone or more parts ina vertical orsubstantially vertical direction, and in applying the invention to various articles it will be found necessary to change the form and construction of the parts to adapt them to the special locations 5o in which they are placed and the particular result which it is desired to obtain. Thesechanges may be readily made, however, and still retain the simplicity, durability, and cheapness of the hinge.

The combination, with a desk standard having a corner and a lid-armpivoted to the said standard and having a shoulder, of an unattached movable locking stop-piece automatic- 6o ally thrown into and ont of action by the movements of the lid-arm.

JAMES M. DODGE. Witnesses:

O. W. BOND,

A. H. ADAMS.

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