US815294A - Window-shade and roller adjustment. - Google Patents

Description

PATDNTDD MAD. 13,1906.

A. HOLMES. I WINDOW SHADE AND ROLLER ADJUSTMENT.

' :APPLIoAnoN FILED FDD. 14, 1905.

,l mmm :EE- aaneen To all whom t mag/concern,.-

'ALEXANDER HOLMES,

OF EUREKA, CALIFORNIA.

`Be it known that I, ALEXANDER HOLMES, a citizen of the United States, residing at Eu'- reka, in the county of Humboldt and State of California, have invented new and useful Improvements in Window-Shade and Roller Adjustment, of which the following is a speciiication.

- My invention relates to improvementslin the adjustment of shade-rollerswith relation to the windows upon which .they are used.

It `comprises details of construction which will be more fully explained by reference to the accompanying drawings, in which- Figure 1 is a 4front elevation. Fig. 2 is a side. Fig. 3 is a top view. j Fig. 4 is an enlarged view of theroller, showing the central telescope-shaft. Fig. v5." is a reduced sectional view of the left-hand portion of the roller of Fig. 4. 2-

It is the object of my invention tov rovide an accurate andeffective means for adjusting and holding shade-,rollers at any desired -point with relation to4 the lightopenings of windows and the like, so that any proportion of the light may be admitted or cut off between the bottom and top of the window and either above`or below the shade.

A represents a window frame or casing, and 2 represents toothed racks fixed to the casing in anydesired manner. As here shown, the rackor toothed portions are fixed flat upon each side of the window-opening and are ulpturned or angular in shae, having upon t e outer portion inturned anges`,as at 3.

4 represents the shade-roller, made of any suitable or desired construction, but a satisfactory form 'will be the usual shade-rollers containing spiralsprings and having a pawland-ratchet mechanism by which the shade may be rolled or unrolled. and maintained at any point. Through the shade-roller is `a supporting journal-shaft. `This shaft may be made in two'sections, a hollow portion 5 entering the shade-roller at one' end anda corresponding portion 6, either solid or hollow, entering the opposite end of the shaderoller and having suchsize as to. telescope within the part 5. The two parts 5 and 6 are made with feathers or corresponding groove and key, so that whilelthey are slidable longitudinally they will not turn with vrelation to each other. These portions extend outwardlyfrom the shade-roller, and upon the ends .arel fixed the toothed wheels 7.

These wheels arel adjusted so as to engage Specdcation of Letters Patent.

I Application filed February'lf, 1905.- Serial No. 245,565.

Eatented March 1s. 1906.

that'by the telescopic arrangement of theinA ternal rods they may be separated or' brought `together so as to fit any width of window or light-opening to which they are to be applied.

VThe shade will be coiled -upon the central po'rtionof the roller which is devoted to it and may' be rolled or unrolled upon ,the two bearing-rods without reference to the position in which these partsare held. The ends off theshafts upon which the wheels 7 are fixed .extend out beneath the flanges 3, and

mesh with the'racks, the shafts turning and the teeth of the racks 2, and it will be seen-v thetoothed wheelsl are thus maintained in sliding beneath the flanges 3 whenever they are moved up or down.

8 is a rod connected with one end of the shade-roller shafts, and, as here shown, it is bent to clasp the shaft which can also turn freely within it. The` rod is carried in close to thewindow-frame and is then bent so' as to extend parallel with the frame to a point within convenient reach of an operator. This rod has teeth or notches formed in it, as shown at 9, and these are engaged by a spring l0, which is fixed with such relation tothe rod that this point willbear with elastic pressure against the rod, and when the rod is moved up or down the roller-shaft will be pushed in unison with the movements of the rod. As the toothed wheels are xed upon each end of the roller-shaft, it 'will be seen that the revolution of one upon its rack'will cause the other to move simultaneously, and

vthus the shade-roller will be maintained substantially straight across the Window. If the shade is to be raised so that its upper edge is close to the top of the window, it is only necessary to push upward upon the -rod 8, and the yielding of the spring will allow the notchesinthe rod to either turned to one side to disengage from the rod or it may be slightly lifted, so that the rod can be pulled down, and the toothed pass freely. If the shade is to be pulled down, the spring may bev IOO tom the. light will all pass in over the'top of l the rollerand shade. If moved to a point nearer lto the top and the shadev partially raised from the bottom, light `may be ad'- mitted both at top and bottom. Thus a single' roller will control the admission of light through the window and take the place of double shades, which may be journaled both at top and bottom of the window.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A window-shade attachment having in combination a shade-roller, a shaft extending therethrough and having toothed wheels at the ends, racks upon the window-casing engaged by said wheels said racks having flanges by which the wheels are maintained in contact therewith, and said roller comprising telescopic members whereby it is adjustable for different widths of light-openings, a rod having one end bent to clasp the shaft and to allow the latter to turn freely within it, ratchet-teeth on the rod and a spring-pressed pawl adapted to engage the ratchet-teeth and thereby hold the roller in its adjusted position.

2. In a shade-roller adjustment, a rollershaft having toothed wheels iXed upon its ends to turn in unison, parallel racks with which the teeth engage, a guided slidable bar with notches formed upon it, and with the upper end of which the wheel-shaft is turnably connected, and a spring-pressed pawl engaging the notches of the bar and holding it and the roller at any point of adjustment.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ALEXANDER HOLMES,

Witnesses:

E. F. VERNER, A. PEDERsoN

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