US2009720A - Window frame and sash - Google Patents

Description

July 30, 1935. w. N. WARRINGTON WINDOW FRAME AND SASH Filed Dec. 26, 1955 4 INVENTOR.

Patented July 30, 1935 UNITED STATES PATENT OFFICE WINDOW FRAME AND SASH William N. Warrington, Philadelphia, Pa. Application December 26, 1933, Serial No. 703,967

2 Claims. (01. 20-524?) This invention relates to new and useful improvements in a window frame and sash, and has for one of its objects to provide a maximum of protection against outside weather conditions.

Another object of this invention is to so construct the elements comprising the structure that the several joints or meeting places may be practically sealed against the ingress of wind, snow, rain, dust and the like.

Another object of my invention is to provide a window frame with upper and lower bevels or laterally inclined surfaceswith which co-operate similar bevels on the top and bottom rails of the upper and lower window sashes respectively, which will cause the sashes to move laterally toward each other when urged in opposite longitudinal directions for closing them.

Another object of the invention is to mount the Window sashesin the window frame so as to have a limited in and out or to and fro or lateral sliding movement in addition to the longitudinal or usual up and down, movement, and. to so con-- struct the window frame and sashes that as the sashes approach the limits of their longitudinal movements in a closing direction, they will be automatically caused to move laterally toward each other and into tight contact with the parting beads, head and sill of the window frame.

In order to obtain the efficiency claimed it is necessary to provide the lateral sliding movements for the sashes and allow a clearance between the meeting rails thereof, so that when the sashes are looked under pressure their faces will be caused to contact contiguous parts of the window frame. The lateral sliding capabilities of the sashes give freedom of movements thereto which make it possible to move them longitudinally with a minimum of friction and without binding.

A further object of the invention is to form the parting beads with a plowed groove or rabbet in order to obtain a better or more efiicient contact between said beads and the window sashes.

With these ends in view, this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims- In order that those skilled in the art to which this invention appertains may understand how to make and use the same, I will describe its construction in detail, referring by numerals to the accompanying drawing forming a part of this application, in which;

Fig. 1 is a cross sectional view of one of the hanging stiles and parting beads, and

Fig. 2 is a verticalsectional view of a window frame and the sashes therein, constructed in accordance with my invention.

In carrying out my invention as herein embodied I have illustrated a window frame including'a head I, hanging stiles 2, parting beads 3, which may be rabbeted or provided with plowed grooves 4, Fig. l, in opposite faces, sash beads I, a sill 8, and shutter stops I 1. Many of the parts above are referred to in the plural because they are the same on both sides of the window frame although only one set is shown due to the sectional illustration.

Within the window frame are mounted the upper sash 5, including a meeting rail I6, and a lower sash 6, including a meeting rail I5. These sashes are arranged to move up and down or vertically in the guideways formed between the shutter stops I1 and the adjacent faces of the parting beads 3, and between the sash beads! and the adjacent faces of said parting beads 3. The meeting rails are suitably spaced apart to provide'a clearance I8 and the opening formed, when the meeting rails are in alignment, is closed or barricaded by a spring metal Weatherstrip I0, preferably spring bronze.

The window sill 8, on the outside of the window, is provided with a bevel 9, with which cooperates a similar bevel I3 on the bottom of the lower sash 6. These bevelsare not to be confused with the ordinary inclined arrangement of the window sill which merely functions as a Watershed. These bevels must have suflicient inclination to cause the lower sash to move laterally, outward, toward the parting beads with little or no effort on the part of the operator when the sash is lowered into its closed position.

The window head I, on the inside of the window, is provided with a bevel II with which cooperate a similar bevel I2 on the top of the upper sash 5. The bevels II and I2, like the ones previously described, must have a sufficient inclination, in the proper direction, to cause the upper sash to move laterally, inward, toward the parting beads with little or no effort, or substantially no more effort than is required to raise the upper sash into its closed position.

In other words when either sash is moved longitudinally toward and into its closed position the bevel thereof will engage with the co-operating bevel on the window frame which will cause the sash to move laterally, automatically, toward and into firm contact with the parting beads, thereby practically sealing the joints between the sashes and the window frame.

By providing the parting beads 3 with plowed grooves or rabbets 4, a better seal is likely to be obtained between the sashes and said parting beads since the chances of the several contacting surfaces having protuberances or unevennesses is reduced to a minimum.

The elements of a sash lock I4 are secured to the meeting rails of the sashes and should be of such construction that when fastened it will have a tendency to draw the meeting rails of said sashes toward each other, both vertically and horizontally, thereby assuring a tight fit along all joints.

As the sash lock is fastened the lower sash will be positively forced downwardand because of the bevels it will be moved or slid into. contact with one face of each parting bead and at the same time the upper sash will be positively forced upward and because of the associated bevels, said upper sash will be moved or slid into contact with the opposite face of each parting bead.

It is to be noted that the bevels are not arranged nor steepenough to produce a wedging effect. Simultaneously the meeting rails will be drawn toward each other so that the lower part of the upper sash and the upper part of the lower sash will positively be brought into contact with the opposite faces of theparting beads. The meeting rails of the sashes should not contact because of the accuracy necessary to cause them to engage each other at exactly the same time the sashes engage the parting beads. For this reason I have provided a spring metal or resilient weatherstripbetween the meeting rails which will act as an efiicient barrier to wind, snow, dust and the like when the sashes are closed and will permit thenecessary lateral movements of the sashes to make firm contact with'the parting beads. When the sash lock is released and the sashes moved slightly toward their open positions, they will have considerable freedom and can be moved without binding between the parting beads and sash bead and shutter stop, wherefore it will be exceedingly easy to move them vertically.

Of course I do not wish to be limited to the exact details of construction shown and described as these may be varied within the limits of the appended claims without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new and useful is;-

1. A window consisting of a frame including guideways and a sill, the latter having the usual sloping surface, a transverse strip mounted on the sloping surface of said sill and having a sloping surface greater than that of the sill and less than will produce a wedging effect, and a sash of less thickness than the width of the guideway vertically and laterally slidable in said guideway and provided with a bevel end extending from one face to the other thereof for cooperation with the sloping surface, of the strip to cause the sash to slide laterally into contact with side walls of its guideways as the sash approaches and reaches its closed position.

2. In a window, a frame having two pairs of contiguous guideways with one of the guideways of each pair separated from the adjacent guideway by a parting bead, said frame including a head at the top of the'frame having a sloping surface formed therein above the outer pair of guideways, said frame also including an outwardly inclined sill at the bottom thereof, said sill provided with a deflecting sloping surface of a greater angle than and distinct from the inclination of the sill and only in the region of the inner pair of guideways, sashes vertically and laterally slidable in said guideways and each provided with a bevel end extending from one face to the other thereof for co-operation with their respective sloping surfaces to cause said sashes to slide laterally into contact with the parting beads as said sashes approach and reach their closed positions, and means to force the sashes in opposite vertical directions toward their closed positions and draw their meeting rails toward each other.

' WILLIAM N. WARRINGTON.

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