US66967A - The graphic co - Google Patents

Description

lnitrh tats gatmtfffirt IMPROVED METALLIC. BLIND.

ehe Stlgrhule Infant in in llg'rst rttus alnit mit uniting pitt tf tigt sume.

TO WHOM IT MAY CONCERN:

Bue it known that I, J'. M. JOBIAIN, of Paris, in the Empire of France, have invented certain new and useful Improvements in the Manufacture of Venetian and other Blinds; and I hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings.

The nature of my invention consists in forming a window-blind, door, or other similar article, of sheet iron or other sheet metal, clamped or uted, as hereinafter described, in order to impart to it the requisite rigidity and stiness.

It will be readily understood that sheet irofn or other sheet metal is entirely too iexible and limber in its ordinary state to'be adapted while in such state to the purposes for which I propose to use it. In order to make it unyielding and stitfI take a piece of sheet iron, for instance, of the size-.required for the door or blind, as the case may be, and by means of blocks or clamps, and mechanism for actuating the same, or by the employment of other suitable mechanism for stamping or moulding, or clamping the metal, I `form around or near its edge a Hating or moulding, having either a concave-convex or other suitable form. This moulding takes away from the sheet all its l'imberness and stii'ens it to such a degree that it will retain its shape underany pressure which a door or window-blind is required to withstand. I am thus enabled to make the blind or door of a single sheet of metal, which not only possesses extreme rigidity, but is very cheap and durable; and while it takes up much less room than-the ordinary blind or door, affords much more complete protection than they against danger from fire or thieves, &c. v

My invention for the reasons above given may be applied with special advantage to the manufacture of Venetianblinds, which can -be struck up and moulded rapidly 'and with comparatively littlelabor.

In order toi'orm inthe blind slats resembling those-of an ordinary window-blind,l"make in the metal `sheet/a series of incisions parallel with and equidistant from each other. A portion of the sheet is thus divided up into a series of strips to which the appearance of slats may be given by twisting or turning each strip by suitable means until it has the inclinedposition which ordinary slats occupy.

To enable others skilled in the art to understand and-use my invention, I will now proceed to describe the manner in which the same is or may be earried'into effect, by reference to the accompanying drawings, in which Figure 1 represents an elevation of a Venetian blind composed of three sections or leaves.

Figure 2 isa horizontal section on the 'line'Y Y.

e' Figure is a vertical section on the line XX.

Figure 4 is a top view of the blind, showing the sectionsfolded back into a suitable recess formed in the window-frame. 4 l

Figures 5 and 6 are modifications of my invention.

The blind, shown in g. I, is composed o` three leaves A A. A" made ot` sheet iron about two millcniet'res in thickness. Each leat' has formed in it and near its edge a continuous concave-convex nionlflingor iuting, aaa, by which, as above explained, the iron is stilen'ed. 'Thefcontour of this moulding or fluting is shown in fig. 3. It will, of course, be understood that the form there` represented need not be strictly adhered to, as the flut-ing may have a more or.less ,ornamental and irregular formulas diled The Ebre@ leaves 1110 COH- nected by hinges, C C', while the leaf AH nearestthe window I is hinged thereto at C. They are capable of being'folded back against the frame P,.or in a recess 'formed in the frame so as to occupy but little room, as shown in lig. '-1.l They may be hield in this position by means of claws b b, which engage with suitable catches is the window-frame' Pg In order to form the slats of the blind, a series of incisions is made in the same parallel with and equidistant from each other. These incisions may be either straight, as shown at D, iig. I, or curved, as indicated at D', or they may be of. any shape desired. 'Thel blind, orrathcr a portion of it, is

thus divided up-into a series of strips, which, by being bent so as to occupy an inclined position, as abovey explained, resemble in all essential respects the ordinary slats of wooden blinds. The position occupied by the strips when thus bent is shown' plainly in figs. Qlaud 3, where the plane in which each .Slat 0r strip D lies is at angles to the vertical plane ofv the blind.4 The blind when the leaves are extended, as shown in tig. l, may be locked or!held in position by means of bolts m, or other suitable fastening devices.`

Figures Sand 6 represent my invention as applied to a door; the door in g. 5 being formed with blinds while that shown in fig. 6 has none. l

Figures 7 and 8 nre sections of the doors, shown respectively in figs. 51 and 6. In :t case like the present, where the form of the piece is such as to admit of two sots of mouldings, they may be formed as shown in the figures, thc convexity ofthe moulding surrounding Vthe part Q being upon one side of the door7 and the con vexity of the moulding surrounding the part above being on the opposite side. The door is thus strengthened and made capable of resisting strain coming from either side. In case, however, that the convexity of the Hating is all upon or towards one side of the door or blind, as seen in tig. l, thenl this side of the blind or door should be turned towards the exterior of the building, .for the reason that it would resist better the efforts of any one attempting to brake or injure the shutter or door than the other or concave" side.

It will be seen that my invention is capable ofvbeing varied in many particulars, so that the blinds or other articles to which it is applied `can be made highly ornamental; and,v as above said, besides being more durable and cheaper than ordinary blinds, the blinds constructed in accordance with my'invention afford better protection, and may be folded away so as to take up much less room than they. i

Having now described my invention, andthe manner in which the same is or lmay be carried iutoL-eifect, what I claim, and desire to secure by Letters Patent, isl 1. A window-blind or door constructed of a metallic plate fluted around and on its sides, and provided withV slats formed in the said plate, as and for the purposes shown and described.

2. A window-blind or door, of sheet iron or other sheet metal, in which the slats are formed from strips partially detached from the said metal sheet and bent substantially as herein described. J. M. JOMAIN.

Witnesses:

BRrxrToN, F. F. RANDOLPH.

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