US1789904A - Weather-stripped sash - Google Patents

Description

Ian. 20, 1931. r LANCASTER 1,789,904

WEATHER STRIPPED SASH Filed D8029, 1928 gnue'nfoz Hea ty? W. Ila/r1535 fer Patented Jan. 20, v1931 PATENT OFFICE GEORGE W. LANCASTER, OF RICHMOND, VIRGINIA WEATHER-SHIPPED SASH Application filed December 29, 1928. Serial No. 329,154.

I This invention relates to windows of the sl ding sash type, and more particularly to windows constructed of sheet metal, and is designed to simplify the construction of weather stripping therefor which will not only prevent the passage of air around the sides of the sash, but will also prevent rattling of the sash in its frame.

In sheet metal window frames it is customary to form the stiles so as to provide longitudinal grooves adapted to receive, slidably, tongues projecting laterally from the vertical sides of the sashes. Heretofore, it has been the practice to arrange substantially U-shaped weather strips in such grooves,

andhaving. the ends in spring contact with the sides of these tongues in order to make airtight joints therewith. These U-shaped weatherstripsare hard to insert in their grooves, andare difiicult to remove for replacement or repair whenever they get out of order.

In order to simplif the weather-stripping of this type of win ow, I have devised a weather-strip ada )ted to be applied directly to the tongues o the sliding sash, and to move therewith during its sliding movement lengthwise of the frame.

The object of the present invention therefore, is to provide weather-strips which can be applied directly to the tongues of sliding metallic sashes, and which can be readily removed therefrom whenever the sash is removed from the window frame.

Another object of the invention is to provide slidin sashes of the type referred to with detac able weather-strips, which not only prevent'air from passing from one side of the sash to the other; but, also, prevent 40 rattling of the sash in the window frame.

I Other objects of the invention will become apparent as the detailed description thereof proceeds.

In the drawings:

Fig. l is a fragmentary lan view of a sash as mounted in a sheet me a1. window frame,

with part of the sash shown in horizontal ton e 5 b bending the ends gu of the strips 10 and '11 into the 95 Fig. 2 is a vertial section taken on the line 2-2 of Fig. l;

Fig. 3 is a fragmentary perspective of the sash provided with the weather-stripping shown in Figs. 1 and 2;

Fig. 4 is a vertical section taken on the line 4-4 of Fig. 2;

Fig. 5 is a broken perspective of a modified form of weather-stripping, adapted to be applied to a sash of the type shown in Fig. 1;

Fig. 6 is a broken perspective of a modified form of the invention shown in Fig. 5; and

Fig. 7 is a horizontal transverse section through part of the stile of a window frame and of the sash provided with the weatherstripping shown in Fig. 6.

Referring to the drawings:

The reference numeral 1 designates a part of the stile of a metallic sash frame, having suitably secured thereto a member 2, and an element 3, which are spaced apart from each other to form a groove 4 in which the tongue 5 of the sash 6 is adapted to slide.

The structural details of the window frame or the stiles thereof constitute no part of the presentinvention, except insofar as they must be constructed to provide a groove 4 in which the tongue 5 of the sash is mounted to slide. The groove 4 is made" wider than the tongue 5 in order that yielding metallic 'weather-strips may be connected to the tongue to slide in yielding contact with the opposite sides of the groove 4 to prevent rats tling of the sash and the entrance of air into and around the several elements of the stile of the frame.

As shown in Fig. 1, the tongue 5 1s formed of the U-shaped extension of the side of the sash 6, and legs 7 and 8 of this extension are spaced apart to form a groove 9. The Weather-stripping for this tongue 5 comprises two strips 10 and 11 made of spring metal, and adapted to be secured to the 12 and 13, respectively, groove9 at the end of the tongue 5. The lower ends of the strips 10 and 11 are similarly secured to the lower end of the tongue 5 and thereby prevent it from length-.

wise movement on the tongue. Each of the edges of which seat against shoulders 16 and 17, constituted by the junction of the tongue 5 with the stile of the sash 6.

The weather- strips 10 and 11 are of such width that when the edges of the portions 14 and 15 seat against shoulders 16 and 17 the bent down ends 12. and 13 contact with the outer end of the groove 9 and prevent the weather-strips from sliding laterally on tongue 5 and to be suitably secured thereto by suitable rivets or other fastening devices passing through the strip 18 and tongue 5.

The strip 18 also comprises two longitudinally bowed parts 19 and 20 which servethe same purpose and operate in the same manner as the bowed parts 14 and 15 of the strips 10 and 11. The main'difi'erence in this case is that the strip 18 is one-piece and is intended to be fastened to the tongue 5 by separate fastening means.

In the modification shown in Figs. 6 and 7 a substantially U-shaped strip 21 has the edges thereof provided with a double bowed part or corrugations. This modification requires acorresponding modification in the tongues of the sash to which it may be applied, and is adapted to be applied directly to the sash or to be secured independently in the groove of the sash frame.

As shown in Figs. 6 and 7 the U-shaped weather-strip 21 has the leg 22 thereof provided with bowed parts 23 and 24, and the leg 25 thereof is providedwith bowed parts 26 and. 27. The sash 28 is provided with a tongue 29 having the legs 30 and 31 thereof separated by a groove 32. The legs 30 and 31 are provided with bowed parts 33 and 34, respectively, which are adapted to receive and hold, frictionally, the bowed parts 23 and '26 to prevent lateral movement of the weather-strip 21 on the tongue 28.

The strip 21 may be secured against longitudinal movement on the tongue 29 by riveting through the fiat portions thereof or by providing the upper and lowerends thereof with tabs, adapted to be bent into the groove 32 for securing them to the sash proper.

It will be apparent from the foregoing disclosure that I have provided sliding sashes of the metallic type with weather-strips adapted to be moved with the sashes proper, and which not only prevent passage of the air around the edges of the sashes but also prevent rattling of the sash in the window frame.

What I claim is: v 1. A window frame having grooves in the stiles thereof, a sash having tongues slidable in said grooves, and weather-strips secured to the opposite sides of said tongues and slidable therewith in weather-tight contact with the opposite edgesof said grooves.

2. A window frame having grooves, in the stiles'thereof, a sash having tongues slidable in said grooves, weather-stripping secured on each side of said tongues and having parts bowed lengthwise of said tongue to slide in weather-tight yielding contact with the opposite edges of said grooves.

3. A sash frame having a groove ina stile thereof, a sash slidable along said stile, a U-shaped tongue, extending from a stile of said sash into. said groove, a weather-strip extending along one side of said tongue and having the ends thereof bent over the ends of one leg of said tongue, said strip having a part bowed lengthwise and outwardly from said leg to slide in yielding weathertight contact against one side of said groove.

In testimony whereof I aiiix my signature.

GEORGE W. LANCASTER.

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