US523559A - Adjustable window-shade fixture - Google Patents

Description

(No Model.)

, F. E. WAGNER v "ADJUSTABLE WINDOW SHADE FIXTURE.

N0. 52s;55 9. Patented July 24, 1894.

} UNITED "STATES"? OFFICE.

FRED E. WAGNER, or CHICAGO, ILLINOIS.

ADJ USTABLE WINDIOVW-SHADIE FIXTU REL SPECIFICATION forming part of Letters Patent No. 523,559, dated July 24,1894.

Application filed January 9, 1893. Serial N o- 457,'7'71- (N model.)

My invention relates to shade or curtain fixtures of the kind in which the shade or ourtain roll is supported for vertical adj ustment, whereby it can at will be placed at any desired height relatively to the top of the win dow.

The objects of my invention are to provide a simplified, easy working, convenient, and highly efficient construction and arrangement of adjustable fixtures for shades or curtains; to insure even and steady movement and balance of the fixture during its adjustment; to adapt the fixture for. ready and convenient application to all kinds of windows; and to provide certain novel and improved details hereinafter more fully described in connection with the accompanying drawings, in which- Figure 1 represents in side elevation a window and its frame, with my improvement applied. Fig. 2 is a side view of one of the sliding roll bearings. Fig. 3 is a cross-section through one of the sliding roll bearings and its guide on line w-w. Fig. 4 shows another form of sliding roll-bearing. Fig. 5 shows an arrangement of double pulley, which in some instancescan be used to advantage.

The bearings for the shade or curtain roll A, are formed by or provided upon vertically movable slides B which broadly considered, form vertically movable bearings or supports for the roll. These hearings or supports are adapted to work along guide strips 0 which can be secured to any desired part of the window frame, or to the stops or strips where such arrangement becomes necessary. These supports can be connected with the guides by any suitable form of tongue and groove connection, although I prefer the form shown in Fig. 8, since by such arrangement but little friction is incurred, and further, the channel or groove 0 along its face permits its fastening screws D to be'sunk well away from and hence out of contact with the sliding supports B. These strips provide an exceedingly simple construction of guide, and obviously, where'it is not desirable'to secure the same to the molding of a window frame, said guides can be secured to the stops or strips commonly arranged alongside the sash.

As a means for raising and lowering the bearings or supports 13, I provide one of them with a pendent rod E which works through a small eye or guide F upon the window-frame.

Said guide is provided with a suitable latch or stop consisting for exampleof -a thumbscrew, whereby the rod can be locked in its adjustment. In order to cause the hearings or supports B to move synchronously and steadily, when either an up push or down pull is given rod E, and also to balance the adjustable fixture so as to dispense with all necessity for springs or weights, Iprovide cords- H and I which are connected with the sliding bearings and arranged to pass over pulleys upon the window-frame.

' With reference to the arrangement. and action of the cord or cable H for example, it

.will be seen that its allotted pulleys K, L, and

M are so positioned that when force is applied to move one of the bearings B, in one directiqn, the cord, will draw upon the opposite bearing B so as to move it in a corresponding direction. To such end therefore, the pulley K is arranged below one of the sliding bearings, and the pulleys L and M are arranged respectively at one and the other of the upper corners of the window frame, so as to permit the cord to pass from the lower end of one of the sliding bearings, downwardly to and under the pulley K, thence upwardly to and over the pulley L, thence across to and over the pulley M, and thence downwardly to the upper end of the remaining one of the said sliding bearings.

The arrangement of the cord or cable I, is the converse ofthe arrangement of the cord or cable H, and .to such end it passes from the lower end of one of the sliding bearings downwardly to and under a lower pulley N, thence upwardly to and over a pulley O, thence across to and over a pulley P, and thence downwardly to the upper end of the remaining sliding bearing. When therefore the rod E is drawn downwardly for thepurpose'of lowering the shade roller, it will exert a direct. down pull upon the sliding bearing to which ICO it is attached, and this said bearing will simultaneously therewith exert a corresponding down pull upon the opposite sliding bearing through the medium of the cord I. In like manner, when the rod is pushed upwardly, the up movement of the sliding bearing to which it is attached will exert an up pull upon theopposite sliding bearing through the medium of the cord H. By such means therefore, the two sliding bearings must move synchronously and hence will work easily and avoid all tendencyto bind upon their; alloted guides. This arrangement or system also operates as a counter-balance and prevents sudden drop of the fixture should the rod E be unlocked and released. The lower pulleys K and N are arranged adjacent toy the-lower ends of the guides C, so as toavoid; unnecessary and undesirable lengthof cords, L .it being observed that these cords are not,

employed as means for raising and lowering the shade roll, but are employed to render j the use of a single adjusting rod E bothprac- -tical and convenient.

For some purposes I'canin place of sepa rating the upper'cornerpulleys asshown in 1 Fig. 1, place each pair upon one spindle, sof as to render the arrangement neatandcomj pact as in Fig. 5, as will be obviouswithoutl further illustration. It will be understood a however that when the axle for the two pulleys is supported by a holder R'andthe latter is provided with a shank r by which it can be secured' to the window casing, said shank will *be secured in the verticalside of the casing which is at a right angle to the plane of the window. and in some instances such arrangement is desirable, particularly where it is more convenient to thus locate the pulleys than to arrange them upon the front ot the casing as in Fig. 1.

The slides or bearings B are preferably formed so as to provide each with a pair. of separated bearing portions b which engage and slide upon the guide-strip, thereby providing a neat and desirable construction.

Where'for example the guide strips are to be attached to the sides of the window frame which lie in planes at right angles with the plane of the window, the portion 1) of the hearing which has the opening 11 for the roll journal can be formed so as to lie at a right angle to its part which is provided with the bearing portions b, as in Fig, 4 so that said portion b shall lie parallel with the plane of said side of the window frame.

What I claim as my invention is- An adjustable shade fixture comprising in combination and arrangement, the shade-roll, vertical guides, a pair of bearings for the shade-roll arranged to slide along the vertical guides, upper and lower pulleys arranged as set forth, cord from "each bearing "carried down to and aboutthepulley belowthe same, thence upwardly to and over one of each pair of upper pulleysand thence down to the opposi'te bearing and means for synchronously adjusting the two bearings consisting of a pendent operating rod "connected with one bearing wherebyboth bearingscanbemoved simultaneously by means of 'a rod "connected with one of them, substantially'asdescribed.

FRED E. WAGNER. Witnesses:

W. D. MIDDLETON, CHAS. G. PAGE.

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