US2578120A - Guide for window sashes - Google Patents

Description

Dec. 11, 1951 ZEMAN GUIDE FOR WINDOW SASHES Filed Jan. 15, 1946 Zazzzis Z 6176076 INVENTOR Patented Dec. 11,1951

UNITED STATES PATENT OFFICE GUIDE FOR WINDOW SASHES Louis Zeman, Danbury, Nebr.

Application January 15, 1946, Serial No. 641,247

This invention relates to guides for sliding window sashes, one of the objects being to eliminate the ordinary stop and parting strips and to substitute therefor plates extending longitudinal- 1y of the window frame and having parallel friction means which serve as guides for corresponding elements secured to the sash so that the sash is not only properly guided while being moved, but will also be held yieldingly in any position to which it might be. adjusted.

Another object is to provide guides which can be installed readily, which are inexpensive, and the use of which reduces materially the cost of a completed window construction.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

In the accompanying drawing the preferred form of the invention has been shown.

In said drawing Figure 1 is a horizontal section through one side portion of a window frame and sashes therein, the parts being equipped with guiding means such as constitutes the present invention.

Figure 2 is a vertical section through the lower portion of the window frame and lower sash.

Figure 3 is a view on a reduced scale similar to Figure l, but illustrating a slightly modified structure.

Referring to the figures by characters of reference I designates one side portion of a window frame while the bottom of the frame has been indicated at 2 and the sill at 3. Ordinarily the sides of the frame are provided with stop strips. and parting beads but in the present case these are eliminated. There are secured to the inner side of each side of frame I two plates 4 and 5 which have laterally offset L-shaped angular portions or flanges 6 and I respectively which extend throughout the length of the plate and, likewise, throughout the length of the inner side surface of the frame member I, and cooperateto form a channel 8 which can be filled with felt 9 or any other suitable insulating material adapted to fit snugly against the adjacent portion of the surface of member I. As the portions 6 and I interfit slidably, they can be adjusted toward or from each other to reduce or increase the size of the channel or parting stop along 1 Claim.v (01. 2044) which the inner faces of the respective sashes S and S slide, and to correspondingly adapt the invention to the sashes with which it is to be used.

Those edge portions of the plates 4 and 5 remote from. the offset portions 6 and I are bent to form substantially cylindrical tubes II) which are formed with longitudinal slits II. Slits II are defined by reason of the fact that in rolling the tubes, the edges themselves of the respective edge portions are brought to positions closely spaced from the respective plates.

In the structure illustrated in Figure 1 each of the sashes s and S mounted in the window frame has a plate I2 secured to each side thereof and provided with a laterally offset portion I3 at one end adapted to slidably engage the adjacent wall of the channel 8, said adjacent wall being defined by part of the L-shaped angular portions 6 or I. The opposite edge portion, of. each plate I2 extends through the slit II and merges into a resilient tube I3, the edge of which edge portion is brought against the plate I2 to define a longitudinal slit I4 whereby the tube I 3 is free to contract or expand in order to maintain it in tight frictional contact with the tube IEI in which it is located.

Plates I2 can be attached to the sashes in any suitable manner so as to move therewith and, in order to prevent leakage of air between these plates and the sashes, suitable packing material I5, such as felt or the like, can be located in longitudinal channels I6 provided in the sides of the sashes.

At the bottom of the frame I there can be provided an insulating means in the form .of a plate I! secured against the bottom of the sash S and provided with an upwardly extended portion 18 in the form of an inverted channel adapted to wedge between the sash S and the sill 3. This inverted channel I8 can be filled with felt I9 or other suitable insulating material for snug contact with the bottom of the frame. Also suitable packing material 20, such as felt, can be seated in a channel 2I in the bottom of the sash S so as to prevent leakage of air between the sash and the plate II.

Obviously by providing a structure such as described the parts can be adjusted readily to sashes after which the plates can be nailed or otherwise attached to the window frame and the sashes respectively. With the tubular portions 13' seated within and frictionally engaging the tubular portions I 0, the sashes will be properly guided when slid upwardly and downwardly but the frictional contact between these tubular portions will be such as to support the sashes in any position to which they might be moved.

Instead of providing the inner or sliding tubular members l3 with plates which extend back and engage the walls of the channel 8, the structure may be modified as shown in Figure 3, wherein the tubular guides 22 which are carried by plates 23 similar to the plates 4 and 5, are engaged by slidable split tubular members 24 which are carried by plates 25 attached to the exposed faces of the sashes S and S as shown instead of being extended between the sashes and the sides of the frame.

It will be noted, by reference either to Fig. 1 or to Fig. 3, that the construction illustrated provides a sash mounting in which it is not necessary to rout or rabbet either the sashes or the side jambs of the window frame, the sides of the sashes and the faces of the jambs being left fiat. This reduces the cost of assembly of the wooden frames and sashes. In this connection, the mounting illustrated and described cooperates with the fiat sash and frame formation in such a way as to mount the sashes for vertical sliding movement without the necessity of sash cords or the like, and the several plates not only fulfill this purpose, but also fulfill the purpose of Weatherstripping, and the additional purpose of forming a parting strip and window stops, thereby to eliminate these items of trim which must ordinarily be used on a double hung window.

What is claimed is:

The combination, with a window frame having opposite, flat-surfaced side jambs and with spaced sashes having fiat side surfaces and mounted for vertical sliding movement between the jambs, of a pair of vertically disposed plates secured in side-by-side relation to each side jamb, said plates having flat center portions secured flat against the associated jamb; L-shaped flanges integrally formed upon the inner edges of the plates and outstanding from the frame, the flange of one plate being slidably interfitted with the flange of the other plate to fill the space between the sashes and provide a parting strip of adjusted width along which the inner faces of the sashes slide; longitudinally slit guide tubes integral with the outer edges of the plates and outstanding from the frame, said tubes contacting the outer faces of the sashes to constitute window stops and cooperating with said flanges to provide spaces in which the sashes are mounted for sliding movement; plates having flat center portions secured to the fiat sides of the sashes and frictionally engaging and slidable upon the center portions of the first-named plates; a longitudinally slit tubular slide integral with the outer edge of each of the last-named plates and frictionally engaging and slidable within the guide tubes; and an angularly offset portion integral with the inner edge of each of the last-named plates and frictionally and slidably engaged by the L-shaped flanges of the first-named plates, the last-named plates being in contact for their full Widths with the respective first-named plates.

LOUIS ZEMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 631,529 McSherry Aug. 22, 1899 1,110,841 Venske Sept. 15, 1914 2,165,943 Schuler July 11, 1939 2,173,649 Firner Sept. 19, 1939 ,388 Wolff et al Dec. 16, 1941 2,315,200 Guillaume Mar. 30, 1943

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