US1950615A

US1950615A - Weather strip

Info

Publication number: US1950615A
Application number: US664602A
Authority: US
Inventors: John M Kuebler
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-04-05
Filing date: 1933-04-05
Publication date: 1934-03-13
Anticipated expiration: 1951-03-13

Description

Marth 13, 1934. J, QE 1,950,615

WEATHER STRIP Filed April 5, 19:3

////r I I r ATTORNEYS Patented Mar. 13, 31%34 rarest;

titans 6 @laims.

The invention relates to improvements in weather strips, and more particularly to metallic weather strips. One of the objects of the invention is to provide a weather strip which may be readily used in connection with window constructions having the usual sash cords for the window weights and yet permit of ready adjustment of the tension between the parts forming the seal.

A further object of the invention is to provide an improved weather strip whose tension may be adjusted uniformly along the length of the strip to insure metal to metal sliding contact at all times.

The invention further cons sts in the several features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawing; Fig.1 is a fragmentary perspective view of a window frame and sash embodying the invention;

Fig. 2 is a transverse sectional view through the sashes, strips and frame;

Fig. 3 is a detail fragmentary perspective view of the improved weather strip and its guide.

Referring to the drawing, the numeral 6 designates the window frame having the usual guide strips 7, 8 and 9 secured thereto, the sash 10 sliding between the strips 7 and 8 and the sash 11 sliding between the strips 3 and 9. The surface 12 of the frame adjacent each sash is crowned or curved and this permits of varying the tension of the weather strip hereinafter described.

The novel weather strip is formed of sheet metal which is bent to provide a central U-shaped portion 13 having its sides 14 inclined slightly outwardly, the sheet then being bent back to form the sides 15 from which the base flanges or legs 16 extend outwardly or laterally, said legs being provided with holes 17 at spaced intervals for the reception of screws 18.

The sashes 10 and 11 each have a U-shaped longitudinally extending rectangular groove 19 formed therein and the sides of this groove are lined with metal by the interfitting engagement therewith of the U-shaped strip 20 of sheet metal. which is secured in place by nails 21 0r other suitable fastening means. The sides of the strip 20 are frictionally engaged by the sides 15 of the weather strip and thus form a good weather seal therewith.

It will be noted from the drawing that since the bases 16 of the strip are relatively flat as compared to the surface 12 and that the base (Cl. ease or web part of the U-shaped portion 13 has a bearing engagement with the surface 12 while the sides 15 are spaced from said surface and the sides 14 at their base portions that pressure exerted upon the flanges 16 through the screws 18 tending to draw said flanges toward the surface 12 will tend to flex or bend the sides 14 I J varied uniformly along the sash.

Thus a double seal is provided between the sash and said strip the inside fold formed by thesides 14 and 15 acting inv conjunction with the sash to keep the warm air in, the outside fold formed by the other sides 14 and 15 acting in conjunction with the sash to keep the cold air out, while the space 22 between the folds permits of the use of the usual sash cord 23 or its chain equivalent which does not interfere with the tension adjustment for the sash. In case a sash cord is not used, the tensioned engagement between the weather strip and the sash may be relied upon to positively hold the sash. i

I desire it to be understood that this invention is not to be limited to any'particular form or arrangement of parts except in so far as such limitations are included in the claims.

What I claim as my invention is:

1. The combination with a window frame, of a sash provided with a lengthwise extending groove having metal lined sides, a metal sealing strip having spaced folds, the sides of each. of said folds at their bases being spaced apart and relatively movable, the outer side of each fold having sliding engagement with a metal lined side of said groove, said strip having a bearing engagement with said frame between said folds and adapted to flex adjacent said folds, and means for flexing said strip to provide a ten sioned engagement between the outer side of each fold and the bontacting side of said groove.

2. The combination of a window frame, of a sash provided with a lengthwise extending groove having metal lined sides, a metal sealing strip having a U-shaped portion having-sides forming the inner sides of folds; the sides of each of said folds at their bases being spaced apart and relatively movable, the outer side of each fold having sliding engagement with a side are of said groove, the base of said U-shaped portion having bearing engagement with said frame between said folds, said strip adapted to flex adjacent said folds, and means for flexing said strip to provide a tensioned engagement between the outer side of each fold and the contacting side of said groove.

3. The combination with a window frame having a crowned surface adjacent the sash, of a sash provided with a lengthwise extending groove having metal lined sides, a metal sealing strip havingspaced folds, the sides of each of said folds at their bases being spaced apart and relatively movable, the outer side of each fold having sliding engagement with a side of said groove, said strip having a base portion extending outwardly from the outer side of each fold and a bearing engagement with said frame between said folds, said strip adapted to flex adjacent said folds, and means engaging said base portions to vary the position of the same relative to the crowned surface of said frame to vary the tensioned engagement between the outer,

sides of said folds and the sides of said groove.

4. The combination of a window frame having a crowned surface adjacent the sash, of a sash provided with a lengthwise extending groove having metal lined sides, a metal sealing strip having a U-shaped portion having sides forming the inner sides of folds, the outer side of each fold having sliding engagement with a side of said groove, said inner and outer sides of each fold at their bases being spaced from and movable relatively to each other, said strip having a base portion extending outwardly from the outer side of each fold and a bearing engagement with the crowned surface of said frame between said folds, said strip adapted to flex adjacent said folds, and means engaging said base portions to vary the position of the same relative to the crowned surface of said frame to vary the tensioned engagement between the outer sides of said folds and the sides of said groove.

5. The combination of a window frame, of a sash provided with a lengthwise extending groove having metal lined sides, a metal sealing strip formed to provide a sash cord-receiving space and folded portions forming the sides of said space, the outer part of each folded portion having sliding engagement with aside of said groove, the inner and outer parts of each foldedi portion being spaced apart and relatively movable, and means for flexing said strip adjacent said outer parts to tension their engagement with the sides of said groove.

6. The combination with a window frame having a crowned surface adjacent the sash, of a sash provided with a lengthwise extending groove having metal lined sides, a metal sealing strip formed to provide a sash cord-receiving space and folded'portions forming the sides of said space, the outer part of each folded portion having sliding engagement with a side of said groove, the inner and outer parts of each folded portion being spaced apart and relatively movable, and means including a base portion extending laterally from each outer part and cooperating with said crowned surface for flexing said strip to tension the engagement of the outerpart with the-side of said groove.

JOHN M. KUEBLER.