US1971404A - Sash guide - Google Patents

Description

W. S. HAMM Aug. 28, 1934.

SASH GUIDE Filed April 3, 1955 Illll/ Patented ug. 28, 1934 UNITED STATES sAsH GUIDE William S. Hamm, Elkhart,'lnd., assignor to The Adlake Company, Chicago, Ill.,` a, corporation of Illinois Application April 3, 1933,.Ser`ia.rl N0.I 664,109

, 5 Claims.

lrangement which is especially 4well suited for use with free working sash and will not only produce an effective seal but will also cushion the side rails of the sash and compensate for any irregularities in either the side rails or the guides.

Other more specific objects and advantages will be apparent to those skilled in the art upon a full understanding of the construction, arrangement and operation of the improved sealing means.

Two different forms of the invention are presented herein for the purpose of exemplication, but it will of course be appreciated that the invention is susceptible of embodiment in other structurally modied forms coming equally with- *in the scope of the appended claims.

pressed position which it assumes when closed;

Fig. 3 is a similar section, but with the sash freed, in the position which it assumes when being either raised or lowered; and

Figs. 4 and 5 are views, corresponding respec tively to Figs. 2 and 3, which illustrate a modi- .fied embodiment of the invention.

The sash organization which is shown in Figs. 1 to 3 inclusive will first be described. As will be observed, it includes a sheet metal sash 10 which is slidably mounted in sheet metal guides 111 at opposite sides of the window opening. Only one side of the sash, with its associated guide, is illustrated, but it will of course be understood that the construction at the other side is the same.

The sash is a free working sashthat is to say, when it is being raised or lowered it is loose in the guides and has a certain amount of play therein, but when it is brought to rest in its fully lowered position it is pressed snugly against the outer walls of the guides in tightly sealed association with the same. The particular means shownin the drawing for pressing the sash outwardly when closed is a shiftable rack structure 12 which is disclosed in the copending application of Harry D. Sevison, Serial No.

591,542, led February 8, 1932, but any other suitable means can of course be used for this purpose.

. Each of the guides 11 is wider than the side rail 13 of .the sash and has an outer wall 14 toward which the side rail is adapted to be pressed by the .rack structure l2. The outer wall.14 of the guide is provided with a reversely bent pleat-like portion l5 which is set at an anglecf about 45 to the plane of the sash and terminates in a flat comparatively narrow edge portion 16 which is parallel with said plane. The reversely bent'portion 15 contains a flat strip 17 of soft flexible rubber, and the free edge portion 18 of the rubber strip projects angularly into the guide into engagement with the outer face of the side rail 13 when the sash is loose in the guide, as shown in Fig. 3. When the sash is in its closed and outwardly pressed position, as shown in Fig. 2, the angularly projecting flap-like edge portion 18 of the rubber strip is correspondingly iiexed back against the edge portion 16 of the guide. In this latter position, the rubber strip not only seals and cushions the side rail of the sash but also fills out any low areas in either of the opposed metal surfaces, which areas are frequently found to be present notwithstanding the most painstaking efforts made to avoid them during the manufacture of the sash and guides.

The projecting portion of the rubber strip 17 is not subjected to any appreciable wear, due to the fact that the pressure of the side rail against the strip is relieved in large measure before the sash is raised or lowered, although during the raising or lowering the rubber strip is preferably so proportioned as to continue in snug but gentle contact with the side rail. The rubber strip is securely clamped in place by small screws 19 in the outer side wall of the guide, which screws permit ready replacement of the rubber strip. At the junction 20 between the angularly disposed portion 15 of the outer wall and the flat edge portion 16, the wall is preferably curved to allow for a corresponding curvature in the rubber strip when pressed back against the same 'and thereby prevent cutting or other injury to the strip which might otherwise be caused by engagement of the same with a sharp corner. It will be observed thatthe point at which the rubber strip is clamped is set back somewhat with respect to the portion of the strip which is compressed between the opposed parallel portions of the sash and guide, with the result that localization of wear at that point is avoided and a slight amount of vertical movement of the contact portion 18 is possible.

In the modified embodiment which is shown in Figs. 4 and 5, the rubber strip is clamped between two L- shaped strips 22 and 23 which together form the outer wall of the guide. The projecting flange 24 on the strip 22 is considerably wider than the corresponding flange 2 5 on the strip 23 and terminates in a, narrow inwardly offset edge portion 26 which provides aflat backing surface for the projecting portion 27 of the rubber strip. The rubber strip is caused to project at an angle into the guide from the outer wall of the latter by the angular disposition of the portion 28 of the flange 24 at thelocation of the oiset. The strips 22 and 23 are held together in clamped association with the rubber strip 21 by screws 29 which preferably pass through the bases of the strips into the post 30.

I claim:

1. In sash construction, vertically extending guides, a sash which is slidable freely in the guides, means for pressing the sash outwardly against the outer walls of the guides when the sash is in its lowered position, and soft flexible rubber strips which are carried by the outer walls of the guides and project angularly into engagement with the side rails of the sash with the contact portions of the strips flexedback into parallelism with the sash against flat backing portions of the guides. f

2. In sash construction, vertically extending guides, a sash which is slidable in the guides, and soft flexible sealing strips which are carried by the outer walls of the guides in engagement with the side rails of the sash, said sealing strips being detachably clamped between parallel metal flanges which constitute portions of the outer walls of the guides.

3. In sash construction, vertically extending guides, a lsash which is slidable freely in the guides, means for pressing the sash outwardly against the outer walls'of the guides when the "sash is in its lowered position, and resilient seal- `ing strips in the guides which project into engagement with the outer faces of the side rails of the sash and are pressed back solidly against the outer walls of the guides with the strips 'clamped flatly between directly opposed parallel portions o'f the sash and the guides when the sash is in its outwardly pressed position.

4. In sash construction, vertically extending guides, a sash which is slidable in the guides, and s'oft flexible strips which are carried by the walls of the vguides and project angularly into engagement with the side rails of the sash with the Contact portions of the strips flexed back against backing portions of the guides.

5. In sash construction, vertically extending guides, a sash which is slidable in the guides, and resilient sealing strips in the guides which project into engagement with the outer faces of the side railsof the sash and are pressed back solidly against the outer walls of the guides with the strips clamped iiatly between directly opposed parallel portons of the sash and the guides.

WILLI- AM s. HAMM.

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