US1478779A - Adjustable shade bracket - Google Patents

Description

Dec. 25, 1923. 0 1,478,779

. B. W. WHITWORTH ADJUSTABLE SHADE BRACKET Filed Dec 29: 1922' 2 Sheets-Sheet l INVENTOR. .5. W- Wz'Zh aWZ/i A TTORNEY ADJUSTABLE SHADE BRACKET FileQDec. 29, 1.922 2 Shet-Sheet 2 I INVENTOR. 31 14 WMn a A TTORNEY.

Patented Dec. 25, 1923.

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1,4'78579 'i -r r BEvInLfw. wrnrwonrn, orciaann, NEBRASKA.

ADJUSTABLE SHADE BRACKET.

Application filed December as, 1922. Serial no. ecasse.

To all whomitmag concern: 1

Be it known that \BEVILL W. WHITWORTH, citizen of the United States, residin at Omaha, in the county of Douglas and tate of Nebraska, has invented certainnew and useful Improvements in Adjustable Shade Brackets, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to shade brackets and has for its object to provide a device of this character wherein the shade roller is supported on slidable brackets slidably mounted in guides at the opposite sidesof a window frame, the slidable brackets being provided with pivoted pawls cooperating with ratchet teeth carried by the guides against the action of a pulley supported weight, mounted in the guides.

A further object is to provide levers and a connecting bar carried by the slidable bracket and forming means whereby upon the downward movement of the connecting bar, the pawls will be moved out of engagement with the ratchet teeth and allowing the shade to be moved to various positions under the influence of the weight or against the action of the weight.

A further object is to provide a connecting bar which may be connected to the pawl controlling levers at a right angle to said levers when the guides are mounted on the inner sides of the window frame instead of on the face thereof.

With the above and other objects in view the invention resides in the combination and rrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing:

Figure 1 is a perspective view of a conventional form of window frame and shade, showing the shade supported by the brackets.

Figure 2 is a front elevation of one of the adjustable shade supporting brackets.

Figure 3 is a horizontal sectional view taken on line 3-3 of Figure 2.

Figure 4 is a horizontal sectional view taken on line 4-4 of Figure 2.

Figure 5 is a perspective view of a portion of a slidable bracket, showing the shade bracket receiving socket.

Figure 6 is a perspective view of another form of shade receiving bracket.

Figure 7 is'a plan View of the connecting bar.

Figure Sisa plan view of another form of connecting bar.

Figure 9 is an. enlarged front elevation of portions of the brackets showing the con nectingba-r.

. Figure 10 is a perspective view of a portion of a window frame showing the bracket attached to the inner side of the frame.

Figure 11is a perspective view of a portion of one offthe brackets.

Referring to the drawing, the numeral 1 designates a conventional form of window frame, and 2 a shade, which shade is carried bya conventional form of shade roller 3. The shade roller 3 has its pintles mounted in shade brackets 5, which brackets are secured to slidable brackets 6, which are "U- shapedin horizontal cross section and are slidably mounted in the guide channels 7 secured to the faces of the window frame 1, in parallel relation to each other. The guide channels 7 are provided with flanges 8, which overlie theslidable brackets 6 and when said slidable brackets are moved upwardly or downwardly, the shade roller 3 is moved to the desired position for adjusting the shade 2 as a whole. One of the flanges 8 of each guide channel 7 is provided with ratchet teeth 9, with which ratchet teeth the nose 1O of a pivoted pawl 11 cooperates for holding the slidable bracket 6 against upward movement under the influence of the weight 12, which weight is connected at 13 to the slidable bracket by means of a cord 14, which cord passes over a pulley 15. The nose 10 of the pawl 11 is held in engagement with the teeth 9 by means of the coiled spring 15, which coiled spring is connected at 16 to the pawl 11 above its pivotal point 17, and at 18 to the slidable bracket 6.

Extending outwardly from the slidable brackets 6 are brackets 19, to which brackets are pivotally connected at 20 levers 21, which extend toward each other. The outer ends of the levers 21 are pivotally connected at 2 1 to the lower ends of the pawls 11. It

' will be seen that a simultaneous downward movement of the inner ends 25 of the levers 19 will simultaneously impart an upward and inward pull on the links 28, thereby simultaneously moving the dogs 11 out of cooperative engagement with the ratchet teeth 9, and allowing the curtain shade 3 to move upwardly under the influence of a weight 12. Connecting the inner ends of the levers 19 is a connecting bar 26, the ends of which are provided with arcuate slots 27 which are concentric to the pivotal point 20 of the levers 21, consequently when the operator pulls downwardly on the bar 26, the pins 28 carried by the ends 25 of the levers 21 move towards the ends of the arcuate slots 27, thereby rocking the levers 21 and imparting pulls on the links 23 and as the dogs 11 are disengaged the slidable shade brackets 6 will be moved upwardly under the influence of the weights '12 on an extreme downward pull on the connecting bar 26 by the operator.

When the guide channels 7 are secured to the inner faces of the sides of the frame, the connecting bar 26'is removed and the connecting bar 26 substituted therefor. By removing the pins 28 and placing the pintles 26 of the connecting bar 26 in the holes from which the pins 28 have been removed. The operation is the same. Referring to Figure 5, the slidable shade bracket 6 is provided with a socket 5 for the reception 7 of the arm 5 of the shade supporting brackin the channel members, ratchet teeth carried by the channeled members and overlying the shade supporting brackets, spring actuated dogs pivoted to the slidable shade supporting brackets and cooperating with the ratchet teeth, pivotedlevers carried by the slidable brackets and extending towards each other, a link connection between the outer ends of the pivoted levers and the pivoted dogs, weights'slidably mounted in the channelled members, cords carried by the weights, said cords extending upwardly over pulleys and downwardly and having their ends connected to the slidable brackets, and a connecting rod connecting the pivoted levers at their inner ends and forming means whereby upon a movement'o'f the connecting bar the pivoted levers will be rocked and the pivoted dogs moved out of cooperative engagement with the ratchet teeth. f

In testimony whereof I hereunto afiix my signature.

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