US2225436A - Window blind attachment - Google Patents

Description

Dec. 17, 1940. M. J. LANG WINDOW BLIND ATTACHMENT Filed July 29, 1939 MURRAY J. LANG ATTORNEY Patented Dec. 17, 1940 PATENT OFFICE WINDOW BLIND ATTACHMENT Murray J. Lang, Brooklyn, N. Y.

Application July 29, 1939, Serial No. 287,328

4 Claims.

This invention relates generally to window shade and Venetian blind holders, but more specifically to an adjustable attachment for each end of the stick at the lower edge of the shade or 5 at each end of the lower strip of a Venetialn blind which disengageably maintains the shade or blind in fixed position along desirable points of the window frame and which consequently prevents rattling thereof.

The main object of the invention resides in the provision of an attachment for each end of window shade sticks and the lower strip of Venetian blinds which is adjustable for window openings of various widths and for sticks and strips 5 of varying Widths whereby the shade or Venetian blind may be held in place at any desirable levels under conditions which normally would bring about rattling thereof.

A further object of the invention resides in 20 the provision of a simple and economical attachment for Window shade sticks and Venetian blind strips which is easily applied and removed and which does not necessitate any alteration in the window frame side members and the window 25 shade stick or Venetian blind lower strip.

These objects and other incidental ends and advantages of the invention will hereinafter appear in the progress of the disclosure and as pointed out in the appended claims.

Accompanying this specification is a drawing showing a preferred form of the invention wherein corresponding reference characters designate corresponding parts throughout the several views and wherein:

Figure 1 is a view in elevation of a window frame and a window shade mounted thereon showing the attachments of the invention securing the shade between the side members of the window frame in any extended and alternate 40 position.

' Figure 2 is an enlarged fragmentary elevational view, being foreshortened and showing details of construction of the attachment as applied to each end of a window shade stick and engaging 45 the window frame, the window frame being shown in alternate width and the attachments adjusted for said alternate window frame width.

Figure 3 is a longitudinal sectional view of the attachment per se.

Figure 4 is a left hand end view of Figure 3.

Figure 5 is an end view in elevation of Figure 3 partly in section along the plane 5-5.

Figure 6 is a sectional view of Figure 2 along the plane 5-6 thereof.

In accordance with the invention and the preferre-d form shown, numeral represents a conventional window shade having a hem II at the lower edge to carry therewithin the usual Window shade stick l2. The shade I0 is provided with the known spring roller I 3 mounted between side members Id of a window frame, and a draw string I3 secured to stick l2.

The attachment essentially is comprised of a channel member generally designated by numeral 15, having a bottom wall l6 provided with a longitudinal and intermediate opening IT, a front and a rear wall I8 and I9 respectively and a top wall 20 which is upwardly offset intermediate the width thereof to form a longitudinal housing 2|. Channel member I5 at one end thereof is provided with an end wall or stop 22 having a transverse and intermediate opening 23.

Projecting downwardly from the top wall of housing 2| are two similar spaced and aligned brackets 24 and 25, the latter bracket being positioned adjacent the end wall 22. The said brackets 24 and 25 are adapted to serve as bearings for a shaft 26 projecting therethrough, the said shaft at one end carrying an engaging head generally designated by numeral 39. Shaft 26 25 at said end is enlarged and threaded as at portion 21, the latter carrying therewith an internally threaded nut or washer 28. An expansion coil spring 29 surrounding shaft 26 ismounted between bracket 24 and the inner face of nut 28, the outer face of the nut abutting bracket 25. In this manner, shaft 26 is springably mounted between brackets 24 and 25, the shaft 26 being depressible inwardly against the force of the spring 29.

The outer end of shaft portion 21 projecting beyond the end wall 22 of channel I5 is adapted to threadedly engage head or plunger 30. The latter is preferably comprised of a body member 3| having an extension on the inner Wall provided with an internally threaded bore '32 which engages the end of threaded shaft portion 21. A rounded friction member such as rubber disc 33 is mounted on the outer wall of body 3| by means of a securing eyelet 34 engaging body 3|.

In mounting shaft 26 within housing 2|, it is necessary to remove plunger 30. Then shaft 26 carrying threaded nut 28 and spring 29 is inserted from the unthreaded end through an openmg in bracket 24 and pulled until the opposite end of shaft 26 is drawn inside of bracket 25 against the pressure of spring 29. The expansion of spring 29 will thereupon force the shaft end 21 through the opening in bracket 25 until nut 28 abuts the inner wall of the bracket 25. Thereafter the plunger 30 is screwed on to shaft portion 2! extending beyond the channel.

Channel l5 may be a metal stamping. The end wall 22 can be formed by turning down extended portions of top wall 20 while the brackets 24 and 25 may be struck from cut- outs 24 and 25 in the top wall of housing 2|.

The attachment above described may be inserted on the ends of a window shade stick I2 within hem H. The channel l5 being preferably made of a yieldable metal, is adjusted by hand pressure to the dimensions of stick I2 through the expedients of openings l1 and 23. Where the width of a window frame does not permit insertion of stick [2 with the end attachments secured thereto, plunger may be extended from or drawn into the channel by turning the same about nut 28 locked in position by spring 29.

After the channel members are clamped over the ends of a window stick l2 within hem ll so that the end walls 22 abut the end walls of the stick, the plungers 25 are normally screwed out until the distance between both exceed the width of the window frame. In such condition it is necessary to grasp stick i2 and depress one plunger against a side member 14 of the window frame in order to insert the other plunger against the other side member of the window frame. Upon the release of pressure, the expandingaction of spring 29 causes the depressed plunger to return outwardly and thus fix the stick l2 between the window frame members. If it is required to raise the window shade after being fixed in place, one plunger is depressed by pressing the stick against that side until the stick is released from the window frame. Thereupon, the shade is adjusted to the desired height, and the above operation is repeated.

It is understood that the channel member [5 may be applied to the ends of the bottom strip of a Venetian blind to maintain the same in place exactly as in the case of a window shade.

I wish it understood that minor changes and variations in the integration, location, material, and combination of parts, may all be resorted to without departing from the spirit of the invention and without departing from the scope of the appended claims.

I claim:

1. In an attachment for each end of window shade and Venetian blind bottom strips to detachably engage the shade and Venetian blind against the side members of a window frame to prevent rattling, an adjustable clamping member frictionally engaging each end of said strip, a spring actuated and depressible plunger member secured to and projecting from the end, of the clamping member and adapted to frictionally engage a side member of the window frame, the said plunger member being provided with means for adjusting the limiting outermost position.

2. In an attachment for each end of window shade and Venetian blind bottom strips to detachably engage the shade and Venetian blind against the side member of a window frame to prevent rattling, an adjustable tubular clamping member frictionally engaging each end of said strip, a housing forming part of said clamping member, a spring-actuated and depressible plunger member mounted within said housing and projecting therefrom to frictionally engage a side member of the window frame means to adjust the limiting outermost position of the said plunger.

3. In an attachement for each end of Window shade and Venetian blind bottom strips to detachably engage the shade and Venetian blind against the side members of a window frame to prevent rattling, an adjustable split sleeve adapted to frictionally engage each end of said strip, a housing formed on the said split sleeve, a depressible and spring-actuated plunger mounted within said housing and projecting therefrom to frictionally engage a side member of the window frame means to adjust the outermost limiting positon of said plunger.

4. In an attachment for each end of window shade and Venetian blind bottom strips to detachably engage the shade and Venetian blind against the side members of a window frame to prevent rattling, a flexible split sleeve adapted to be detachably clamped over each end of said strip, a depressible and spring-actuated plunger secured to and projecting from the said sleeve to frictionally engage a side member of the window frame means to adjust the outermost limiting position of said plunger.

MURRAY J. LANG.

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