US5078A - Fastening window-blinds - Google Patents

Description

JAMES STEWART, OF UTICA, NEW YRK.

FASTENING- WIDOWLBLINDS.

j .i Specification of Letters Fatent No. 5,078, dated Aprlf24, 184'?.

To all whom t may concern:

Be it known that I, JAMES STEWART, u holsterer, of Utica, in the county of Oneida and State of New York, have invented a new and useful Improvementin Hinges and in the Mode of Fastening Window Blinds,V Shutters, &c., and that the followingis a full, clear, and exact description of the principle or character which distinguishes it from all other things before known, and of the manner of making, constructing, and

using the Same, reference being had tothe accompanying drawings, making part of Y Vresents the window frame, (b) the s f this specification, in which- Figure l is an elevation of one side of a window frame with the shutter opened; Fig. 2, an elevation of one half of the outside of the window with the shutter closedywFig.l 3,

a plan of that part of the lower hingewhich is attached to the windowframe; Fig/i, a separate view of the cam and spindle for raising the shutter; and Figs/5 and 6 are vertical cross Sections of ythe stationary hinge plate taken at the lines (Y, Y) and (Z, Z) of Fig. l. t ,Y

The same letters indicate like parts in all the` figures.

The object of my invention is to fasten' window shutters and blinds when open or closed, without the necessity of opening the window, and to fasten and hold the shutter or blind when thrown open near the outer edge thereof as well as at the hin es to prevent'the fastening from beingv roken by the wind aided by the leverage of the shutter or blind as is the case when the fastening is at the hinge alone. And the nature of my invention consists in making the faces of theknuckles of the hinges where the two halves come together with recesses and projections so divided and situated relatively to each other that when the shutters are opened or closed the projections of the one shall be in the recesses of the other, and vice versa, and when at any `of the interme- Idiate points that the projections of the one shall rest and turn on the projections of the other to admit of the free turning of the hinges to open and close the shutters or blinds, when this is combined with a cam or eccentric on the outer end of a spindle or arbor which lies and turns in that leaf of the lower hinge which is attached to the window frame, and which extends from the knuckle of the hinge to the inside of the window so that by turning this spindle or arbor the camror eccentric on the end cf,

it shall act on and lift the other half of the hinge' and with it the shut-ter or blind that it may be thrown open or closed byjany of the known modes of doing this from the insideofthewindow. Y

And my invention also consist-s in combining with hinges thus constructed a permanent hoiok and catch attached to the wall and outside. of' the shutter, that may be hooked and unliooked by the lifting of the -two halves ofthe .hingek aremade with two v quadrant recessesk (e, c) on opposite sides of the hinge pin (f) and located relatively to eachother that the projections of the `one'shall it the recesses ofthe other to pre-v ventA the leaves from Vturning when thus inserted; and as these recesses are quadrants they will fit into' each other at every semiy revolution of the hinge to fasten'the shutter when opened and closed. .The turning part of the hinge is lifted by a cam (g) on the .end of a spindle (L) that'. turns in the permanent leaf I(c) ofthe hinge; the inner end of the spindle which extends to the inside of the window has a handle (L) attached to it bylwhich it is turned tolift the other vhalf of the hinge land the shutter attached f to it. The cam formed end of the'spindle turns in a recess in the knuckle of the hinge,

and the Vspindle turns in a box formed in' the leaf, about one half the length of the box (z') being on one side, -and the othern half (j) on the other side, to admit of molding, that the hinge may be cast; and as the part (i) of the boX is made in that part of the leaf whichis let into the wood ofthe any other hinge. From the foregoing i-t will be evident that when the spindle is turned the vcam at the end will act on the under face of the knuckle of the upper half of the hinge and lift its projection out of the recesses of the lower half Aand permit the two to turn on each other, and when the f 1004 window frame, the spindle at this `part runs 1 handle is liberated its weight .will carry Vit down and turn back the cam, so that when the shutter is thrown open or closed the weight of the shutter will clutch the hinges.

But as the wind acting on the vshutter when open has a great leverage power `which would tend to break the hinges itV becomes necessary to hold Vthe shutter when open near the outer edge which can not be'done by means of a spring or weighted catches without entirely opening the'window and extending the body out. This difficulty I obviate by my plan. To the outside of the shutter I attach a hook (la) which ts a catch (l) attached to the wall, so that when' the shutter is thrown open the hook falls behind the catch when Vthe shutter descends by the clutching of the hinges and when it is ldesired to close the shutter the hook is lifted out of the catch by lifting up the shutter by turning the cam spindle t-o unclutch the hinge. The upper hinge (m) may be made like the lower one, except ,the spindle, but it will be obvious that this may be dispensed with and that a common hinge may be substituted. s n

The cam at the end of the spndle'may be made either by cutting into the end f a cylindrical rod, or by making a projection t thereon, by an eccentric, although'the simplest form is merely to out into, the end of the rod suifciently to permit the turning half of the hinge to descend in clutching.

What I claim as my invention, and desire to securebyLetters Patent, is-

1; VMaking the faces of the knuckles of the two halves ofthe hinge with quadrant recesses in the manner of a clutch to holdV and prevent the shutter from turning when JAMES STEWART.

t Witnesses:

" J. J. GREENOUGH,

Js. W; THAYER.

Images