US319205A - Seuttee woekee - Google Patents

Description

(No Model.)

A. H. DODD.

SHUTTER WORKER.

No. 319,205. Patented June 2, 1885.

NITED Stains Ferrari Grinc ALVIN H. DODD, OF HUDSON, NEXV YORK.

SHUTTER W'ORKER.

SPECIFICATION forming part of Letters Patent No. 319,205, dated June 2, 1885.

V: n Application filed March 30, 1885. (No model.)

To Mr? whom it may concern:

Be it known that I, ALVIN H. Donn, of Hudson, in the county of Columbia and State of New York, have invented a certain new and useful Improvement in Shutter-Workers, of which the following is a specification.

My invention relates to those shutter-workers for blinds and shutters which consist of two hinge-leaves having bearers pivoted together, one hinge-leaf being provided with a toothed segment, with which engages a worm or screw journaled in the other hinge-leaf. The hinge-leaf which carries the worm or screw being secured fast to the window-casing, the turning of the screw will cause the other hinge-leaf to swing relatively to the fixed leaf, and so produce the opening or closing of the shutter or blind, according as the screw is turned in one or other direction.

The invention consists in a novel combination of parts, hereinafter particularly described, and pointed out in the claim.

In the accompanying drawings, Figure 1 represents a horizontal section of a portion of a window-casing and shutter or blind with my improved shutter-worker applied thereto, a portion of such worker being shown in section. Fig. Zrepresents an elevation or edge view of one hinge-leaf and the worm or screw journaled therein, and Fig. 3 is a face view of the two hinge-leaves and a section of the stem or shaft of the worm or screw.

Similar letters of reference designate corre sponding parts in all the figures.

A designates a portion of a shutter or blind, and B designates parts of the window-casing to which such shutter or blind is applied.

0 designates a portion of the lower sash, which is balanced by a weight, 0, and C designates the weight forthe upper sash,which is not here shown. The weights 0 0 work in suitable weight-boxes in the casing B. The hinge with which the shutter-worker is combined is composed of two plates or leaves, D D, the former secured to the blind A, and the latter secured to the outer side of the window-casing B, as best shown in Fig. 1. The leaves D D are provided, respectively, with bearers d d, pivoted together or connected by a hingepin and pintle, c. The bearer d of the leaf D is likewise constructed with atoothed segment, 11*, which is concentric with the pivot c, and

the hinge-leaf D carries or supports the worm or screw E, the thread of which engages with the teeth of the toothed segment (2*. The worm or screw E has astem or shaft, E, fitted to a bearing, (i in the leaf D, and with which is connected a shaft-extension, E journaled transversely in the window-casing, and extending through the same to the inner side thereof. At its inner end the shaft-extension E is supported by a flanged bearing, F, attached to the casing, and inside the bearing is a crank or handle, G, whereby the shaft-extension, shaft, and worm or screw may be turned in order to open or close the blind or shutter A. As here represented, the shaft or stem E of the worm or screw E has a portion of reduced diameter sufficiently long to fit the bearing d", and inside the bearing is provided with an enlargedhead or portion constructed with a socket, e, in its inner end for the reception of the end of the shaft-extension E, which is secured therein by a pin, f. The worm-shaft E is held against movement lengthwise in its hearing by the two shoulders formed, respectively, by the worm E and the enlarged head in which is the socket e.

In order to enable the shaft to be introduced into its bearing, the leaf D is slotted at d from the inner edge, or that edge at which is the bearer d, outward to the bearing 62. The form of this slot d? is best shown in Fig. 3, and from that figure it will be seen that the slot extends from the bearing (1 upward and inward toward the bearer d. It will therefore be seen that theworm, worm-shaft, and enlarged head,which contains the socket 0, may be cast integral with each other, and before the leaves of the hinge are put together the worm-shaft may be slipped through the slot (7. into its bearing (P, as will be best understood from Fig. 2. The bearers of the leaves being then connected, it will be understood that the toothed segment (1*, by its engagement with the worm E, holds the worm and worm-shaft in the bearing (2 and prevents their movement in the slot ina direction to remove them therefrom. The bearing which is afforded the shaft-extension E in the window-casing B also tends to hold the worm and worm-shaft in position.

It will be understood that the construction of the worm-shaft E,with its shoulders formed ICO by the worm and the enlarged head in which is the socket 6, provides for holding the worm securely against axial movement, and the construction of the bearing (1 with the slot (1 enables the worm, with its shoulders cast thereon, to be readily placed in the bearing, and also avoids the necessity of boring out a cylindric bearing for the worm-shaft. These features therefore reduce the expense of manufacture of shutter-workers of this class, and enable me to provide an article which may be sold at a very low price.

What I claim as my invention, and desire to secure by Letters Patent, is-

The combination of the two leaves D D and ALVIN H. DODD.

Witnesses:

G. HALL, FREDK. HnYNEs.

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