US80931A - Improvement in door-springs - Google Patents

Description

UNITED Solteras .'Par ENT r1arE-.1\

WRIGHT DURYEA, OF GLEN OOvR, NEW YORK. l

IMPROVEMENT IN Doon-seniNes.l

Specification forming part of Letters Patent No. 80,93l, dated August 1l, lS..`

To all lwhom it may concern:

Beit known that I, WRIGHT DURYEA, of Glen Cove, in the county of Queens and State of New York, have invented a newA and usefu1 Improvement in SelfClosing Hinges, of which the following is a full, clear, and exact description, reference being had to the accompanylng drawing, forming part of this specification, and in which- Figure 1 represents an elevation of a door, 1n part, with j amb broken away, together with my improved hinge applied thereto; and Fig. 2, a transverse section of door and jamb, with hinge attached, the upper portion of the box part of the hinge being removed, or partly so.

Similar letters of reference denote like or corresponding parts.

Numerous attempts have been made to construct self-closing hinges that, while free and permanent in their action, should not present an unsightly appearance; but such it has heretofore been found impossible to secure, one of the greatest objections, in fact, to self-closing hinges, as in general or most common use at present, being the bulkiness of the hinge at the joint, for the purpose of accommodating within it the usual spring, that is of a spiral character. This prominence or protuberant form given the joint makes the hinge so unsightly as to render it unsuitable for general indoor purposes. My invention removes this objection, and possesses other advantages, including an increased facility foradjusting the tension of the spring, as wear or other circumstances require.

In this my improvement the spring though arranged to lie within the jamb, and in no direct connection with the joint, is, together with certain operating-gear, made to form part of the hinge proper; and my invention further consists in a combination, with the hinge, of a drum, spindle, spring, chain Or band, wormwheel, and screen, the latter being adjustable from the exterior to regulate the tension of the spring; also, said invention includes a swinging crane, arranged as a loose or free attachment to the hinge, for operation by the chain and door, to give a more effective angle for the pull of the chain on the door.

Referring to the accompanying drawing, A represents a door in part; B,itsj amb; C C', the two leaves of a hinge applied thereto, and D the joint of the hinge.

The jamb-leaf C of the hingefhas cast on]` fit a recess, F, made in the jamb. This bracket j or frame serves to carry a vertical spindle, G, and to contain gear connected therewith, the same consisting of a drum or curved swell, H, made fast to the spindle, or so as to form part of it, worm-wheel I, loose on the latter, together with a coiled spring, J, fast at its one end thereto, and secured at its other end to the worm-wheel, and endless screw or spirally-threaded spindle K in gear with the wormwheel I.

A chain or band, L, answers to connect the door or leaf G of the hinge with the drum H, said chain, which winds on and unwinds from the drum as the door is opened and closed, passing freely through an aperture in the leaf O and through a crane or independent swing ing attachment, M, hung on the hin ge-joint.

The spring J may, if desired, be arranged within the drum H, or other suitable shell, and still a like connection of the spindle and worm-wheel be established, and numerous other changes or modifications be made, including the substitution of mechanical equivalents for the gear herein described, without departing from the principle of my invention.

It will suffice here, however, to explain the operation of the hinge constructed as represented in the drawing, in which the spring J operates to close and keep shut the door by or through the action of the drum H and chain or band L, the worm-wheel I and screw K operating as a fulcrum or rest to the spring, also serving to effect the tension or adjust ment of the latter from time to time, as required, by simply turning, through :a screwdriver applied to a nick on or in its outer end, the screw K, and which may be done without uncovering or disconnecting parts, but only sufficiently opening t-he door to get at the head of the screw.

When the door is closed the crane M lies shut in recesses s s made in the leaves C C of the hinge, and, by reason of the free run of the band or chain L through it, remains thus embedded during the early portion of the opening of the door; but as the door is farther Opened a shoulder, z, or enlarged portion of said chain or band, catches against the back of the crane, swinging the latter outward, as

partially represented in the drawing, and which serves to give a more effective angle to or direction in run of the chain for the action of the latter in pulling to the door during the early period of its closing, while said crane forms no obstruction to the door when closed, and, being freely hung, is readily shut by the door in closing.

The hinge proper, it will be perceived7 is rather strengthened than weakened by the closing additions to it or frame carrying them.

The same, too, presents no unsightly appearance, thereby makin g a self-closing hinge, constructed as described, applicable both for in and ont door purposes, and which is durable, not liable to get outof repair, also readily adjustable as regards the tension of its spring.

What is here claimed, and desired to be secured by Letters Patent, is

1.- 'lhe combination, with the hinge proper,` of the drum H, chain or band L, spindle Gr, spring J, worm-wheel I, and screw K, for operating together, essentially as herein set forth.

2. The arrangement, substantially as described, of the screw K relatively to the working mechanism of the hinge, and whereby the tension of the spring may be adjusted from the exterior of the jamb, as specified.

3. In combination with a self-closing hinge, the swinging crane M, arranged for operation by the chain and door, as described, and serv ing to give a more effective angle for the pull of the chain on the door, as herein set forth.

WRIGHT DURYEA.

Witnesses:

J. W; GooMBs, A. LE CLERC.

Images