US1793822A - Window shade - Google Patents

Description

Feb. 24, 1931. J. B. OLSEIN 1,793,822

WINDOW SHADE Filed Dec. 10. 1928 Inventor John 5. 0/561:

patented Feb. 24, 193i {UNITED STATES PATENT OFFICE JOHN B. OLSEN, OF MILWAUKEE WISCONSIN wmnow SHADE Application filed December 10, 1928. Serial No. 325,005.

i usual adjustment of the shade fabric on the All roller.

Another object of this invention is to provide means for maintaining the shade structure permanently in parallel relation to the upper and lower edge of the window frame regardless of the position to which it may beadjusted.

Another object of the invention is to facilitate the adjustment upwardly and downwardly of the entire shade structure by suspending the same by cords suitabl i guided on the frame of the window.

Another object of the invention is attained in providing suitable guides for the shade roller in its up and down movement which also serves as a means of protecting the shade roller adjusting cords.

Another object of the invention is to provide a shade structure having a novel means for mounting the same on vertical guides, secured to the sides of the window frame, said guides serving to protect the adjusting cords of the shade structure from wear and to insure parallel alignment of the shade roller with the upper and lower edge of the window frame in any adjusted position.

With these and numerous other objects in view, the embodiments of the invention are described in the following specification and are illustrated in the accompanying drawings,

the novel features being pointed out in the appended claim.

Figure 3 is a horizontal sectional view of the guide member and weight, taken on line 33 of Fig. 2.

The invention consists, in general, of a shade roller, having suitable brackets mountedon its ends, capable of vertical adjustment onsuitableguide members which are preferably secured to the sides of a window frame. Adjustment of the shade roller brackets is attained by providing adjusting cordswhich are connected to the brackets and trained over suitable pulleys arranged to permit the cords to operate in unisointhereby maintaining the shade roller in a horizontal 1 position, parallel with theupper and lower edges of a window frame irrespective of its adjusted position. i l l Referring to the structure shown in the accompanying drawings, the shade cloth 1 is secured in the usual mannerto the shade roller 2, the roller being equipped on its ends with the ordinary pivot or supporting pins. One supportingpin is adapted to be held against rotation when the roller is being turned. The usual fixed braeketsfor mount ing the shade roller onto the window frame are dispensed with and adjustable mounting brackets 5 and 6 are provided having suitable projections 7 extending forwardly therefrom.

Thebraclrets 5 and 6 are provided with hollow square body portions 8 and 9, respectively, which are adapted to be slidably mounted over hollow guide rods 10 and 10, fixedly mounted on the window frame. :The guide rods preferably are formed of square tubing to prevent any tendency of the brackets 5 and ttto rotate on same, thereby eliminating any tendency of the shade roller 2 of weaving from side to sidewhen being adjusted vertically thereon.

The guide rods 10 preferably are mounted are secured thereto at their lower ends by wood screws 11 which pass through suitable holes provided therefor inthe extended pori tion 12 of one of the walls of the guide rod.

Rigidly mounted on the upper end of each of the guiderods are pulley brackets 13 and 14, which are secured to the wmdow fraineiby suitable wood screws. TlllS form of mounting theguide rods retains them in a fixed position, parallel to and spaced from the Window frame a suitable distance to pro vide clearance for the free vertical movement of the brackets and 6 without endangering I the finish of the window frame.

Vertical movement of the shade roller 2 is accomplished by the provision of adjusting cords, each of which has one endthereof secured to its respective bracket 5 or 6. A lug 0r clip 16'is provided onthe bracket 5m Securing the djusting end 17 thereto, said cord extending upwardly therefrom and being trained over a suitable pulley or sheave mounted for free rotation in the pulley bracket 13. Beyond the sheave, the cord continues downwardly through the tubular guide rod 10.

A lug 22, similar to the lug 16, is also provided on bracket 6, and a second adjusting cord 23 is secured thereto. This last named cord is trained over a similar pulley or sheave rotatably mounted in the bracket 14, then horizontallyacross the window frame, over a second pulley, pivotally mounted in the bracket 13, and its free end is secured tothe adjusting cord 17, by any suitable means, such as by tying- V The life of the adjusting cords is greatly prolonged by feeding them through the guide rod 10, as they are-not subjected tounduewear by rubbing against the shade roller 2 orits brackets when the shade roller is being raised or lowered. The companion lugs 16 and 22 are so positioned on their respective shade roller brackets,that the pull exerted by the adjusting cords 17 and 23, when the shade roller is being raised, will be in the line of travel of the brackets, therebypreventing said brackets from binding on the guide rods 10.

' Vertical adjustment of the shade roller is attained, as mentioned hereinbefore, by means of the adjusting cords 17 and 23. A weight 35 secured to the free end of joined cords 17 and 23 is slidingly mounted within the tubular guide member 10 and is of sufiicient weight to balance the shade roller and fabric. The guide member 10, having the weight therein, preferably is provided with a vertical slot 36 in its front wall which extends upward from adjacent its lower end to about midway the height of the window frame.

To provide access to the weight, for adjusting the shade roller, a thumb screw or knob 87 is threaded into a tapped opening provided near the lower end of the weight 35 which thumb screw extends through the slot 36 in the guide. vVhen the shade roller has been adjusted vertically the screw 37 is tightened to bring the shoulder 38, formed thereon, against the wall of the guide 10. This serves to securely retain the shade roller in adjusted position. Adjustment ofthe shade fabric relative to the roller is attained by means of an independent cord 39, attached thereto.

Although an exemplary form of the improved structure has been described and illus trated, it is to be understood that certain variations and modifications may be made in the detail construction without departing from the spirit of the invention or the scope of the appended claim.

Iclaim':

" A window shade structure having in com-

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