US3429075A

US3429075A - Closure having high load bearing characteristics

Info

Publication number: US3429075A
Application number: US597310A
Authority: US
Inventors: Abraham Grossman
Original assignee: Individual
Current assignee: Individual
Priority date: 1966-11-28
Filing date: 1966-11-28
Publication date: 1969-02-25
Anticipated expiration: 1986-02-25
Also published as: ES347597A1

Description

' Feb. 25, 1969 A. GROSSMAN 3,429,075

CLOSURE HAVING HIGH LOAD BEARING CHARACTERISTICS Filed NOV. 28. 1966 'IIIIIIII,

35 H 50 I lNVENTOR 5@ 56 I ABRZ /fM GROSSMA/V MAHONEY 8c HORNE/4x52 United States Patent 5 Claims ABSTRACT OF THE DISCLOSURE The closure of the invention is characterized by the fact that it incorporates on the sliding sash a monumental inner stile which acts as a rigidifying member to enable the closure to carry loads which it could not ordinarily carry because of the relatively small cross section of the extrusions of the frame and the extrusions constituting the remaining components of the sliding sash.

This invention relates to an improved closure having high load bearing characteristics and, more particularly, to a closure such as a window, incorporating a plurality of sash, one of which incorporates a load bearing member adapted to sustain wind and similar loads to which said sash are subjected more effectively than has been previously possible in prior closures incorporating sash of the same overall dimensions as those disclosed herein.

The invention of the present application is an improvement of the closure disclosed and claimed in U.S. Letters Patent No. 3,208,111, granted Sept. 28, 1965, and entitled, Closure With Longitudinally Movable Sash. As disclosed in Letters Patent No. 3,208,111, the form of closure herein involved includes a frame mounting a pair of sash, one of said sash being an outer stationary sash and the other of said sash being an inner, longitudinally movable sash. Furthermore, when said movable sash is in frame closing position, one stile of said inner sash is positioned inwardly adjacent and mates with the contiguous stile of said outer sash so that one stile of said inner sash is disposed in supportive relationship with said contiguous sash of said outer stile.

In the closure of the aforesaid patent, the one stile of the inner sash and the contiguous stile of the outer sash are of identical depth of cross-sectional and load bearing capacity. Consequently, the closure incorporating said sash was restricted to sizes such as those customarily utilized in residential applications because it could not sustain the loads encountered in larger sizes required for commercial applications.

It is, therefore, an object of my invention to provide a new and novel closure incorporating an inner sash having a mating stile constituted by a massive, load bearing member spaced inwardly from said frame and presenting an inward face spaced exteriorly of the inner perimeter of said frame. Because of the provision of said load bearing member serving the function of a mating inner stile, it has not been necessary to greatly increase the overall cross-sectional dimensions of the other sash elements of the outer sash, thereby achieving substantial cost savings over conventional closures capable of supporting comparable loads and permitting the use of the same frame members as used in the domestic sash. The load bearing interlocking inner sash stile is an integral rectangular tube as opposed to the use of reinforcing fins in conventional construction to accomplish load bearing resistance which appear as architecturally unsightly appendages to the interlocking sash stile.

Another object of my invention is the provision of a closure of the aforementioned character wherein said massive tubular load bearing stile incorporates a first portion which lies wholly within the associated frame and 3,429,075 Patented Feb. 25, 1969 has its upper and lower extremities terminating, respectively, within the head and sill of said frame, and a second massive load bearing portion which has its upper and lower extremities terminating, respectively, below and above said head and sill and which projects beyond the inner perimeters of said head and sill.

An additional object of my invention is the provision of a closure of the aforementioned character in which said load bearing stile is constituted by a unitary member of hollow cross-sectional configuration and where said second portion thereof projecting beyond the perimeter of said frame is consequently hollow to impart the maximum load bearing cross section to said portion.

A further object of my invention is the provision of a closure of the aforementioned character in which said massive load bearing stile, rather than detracting from the overall appearance of said closure, imparts thereto a monumental massive and aesthetically pleasing effect.

Other objects and advantages of the invention will be apparent from the following specification and the accompanying drawing which is for the purpose of illustration only, and in which:

FIG. 1 is an inside elevational view of a closure incorporating the improved high load bearing characteristics of the present invention;

FIG. 2 is a fragmentary, longitudinal, sectional view taken along the broken line 2-2 in FIG. 1; and

FIG. 3 is a fragmentary, vertical, sectional view taken along the broken line 3-3 in FIG. 1.

As hereinbefore stated, the closure with high load hearing characteristics of the present invention constitutes an improvement in the closure construction set forth in the prior patent, No. 3,208,111, and has been incorporated in said prior construction. For this reason, the details of the overall closure are'only briefly described herein to the extent necessary to understand the overall working relationship between the frame, the stationary sash and the longitudinally movable sash, with said prior patent being referred to for a more complete description of said closure. There are certain structural changes in the closure and sash shown herein from those of said prior patent which are not of importance to the improvements of the present invention, but the overall construction and operation of the closure shown herein will be clear from a complete understanding of said prior patent.

Referring to the drawing hereof, a closure, generally indicated at 10, is generally rectangular in inward and outward appearance and includes a frame 12 having a header 14, a sill 16 and longitudinally spaced, side jambs 18, said jambs maintaining the header and sill in operative and spaced relationship in the usual manner. Furthermore, the header, sill and

jambs

14, 16 and 18 co-operate to forwardly and rearwardly divide the frame 12 into a pair of

upper tracks

20 and 22, a pair of

lower tracks

24 and 26 Viewing the closure 10 from the inner side, as shown in FIG. 1, the lower side of FIG. 2 and the right-hand side of FIG. 3, a stationary outer sash 32 is mounted in said frame within the upper and

lower tracks

20 and 24 extending longitudinally of said frame and being secured intermediate thereof by a tie bar 34. The stationary outer sash 32 includes upper and

lower rails

36 and 38 maintained in operative and spaced relationship by longitudinally spaced

stiles

40 and 42, said rails and stiles appropriately enclosing a glass pane 44.

A longitudinally movable inner sash 46 is received at the right-hand side of the frame 12, as viewed in FIGS. 1 and 2, within the upper and

lower tracks

22 and 26. The movable inner sash 46 includes a glass pane 47 appropriately enclosed by upper and

lower rails

48 and 50, a stile 52 normally at the jamb 18 and a mating stile 54 normally intermediate the frame 12 and preferably inwardly overlying and covering the overall mating stile of the stationary outer sash 32 formed by the tie bar 34 and stile 42. The movable inner sash 46 is mounted in the frame lower track 26 for longitudinal movement relative to said frame and said stationary outer sash 32 by means of a carriage 56 supported on appropriate rollers 58, again more clearly described in said prior patent, No. 3,208,111.

A resilient bumper 60 may be mounted on the frame jamb 18 for abutment by the stile 52 of the movable inner sash 46 when said sash is moved longitudinally of the frame into fully closed position, as shown in FIG. 2. In addition, the stile 40 may be provided with a flange 62 projecting from said stile inward of the frame 12 for hand engagement in order to augment the longitudinal movement of the movable inner sash 46 in the direction toward its fully closed position. Furthermore, a spring biased bolt 64 of the latch 66 mounted on the mating stile 54 is adapted for engagement in a keeper 68 of the mating stile on the stationary outer sash 32.

The mating stile 54 of the movable inner sash 46 is preferably an elongated hollow extrusion having a stile portion 69 within the frame 12 and a relatively massive, load bearing and reinforcing portion 70 projecting inwardly of the frame and presenting an inward face 71 spaced exteriorly of said frame. Due to the hollow configuration of the stile 54, upper and

lower ends

72 and 74 thereof are open ends located just short of and with sliding clearance relative to the frame header 14 and sill 16, and due to the generally rectangular, cross-sectional configuration of said stile, said face 71 is a generally rectangular face. Still further, the longitudinal extension of the stile 54 is such that, as hereinbefore stated, said stile 54 virtually completely overlaps and inwardly covers the mating stile of the stationary outer sash 32 formed by the combined tie bar 34 and stile 42 so that when the movable inner sash 46 is in said closed position, the only thing that is inwardly apparent at the intermediate location of the frame 12 is the generally rectangular face on the reinforcing portion 70 of the stile 54.

With the particular construction of the mating stile 54 of the movable inner sash 46, due to the increased massiveness created particularly by the reinforcing portion 70, as well as the hollow configuration of at least said reinforcing portion and preferably also the major part of the stile portion 69, extreme vertical rigidity is provided for the

sashes

32 and 46 which will resist relatively high wind forces against said sash sufficient for commercial applications. Furthermore, it will be noted that such increased strength and rigidity has been provided by the unique formation of the hollow mating stile 54 of the movable inner sash 46, with only a very slight increase in stile longitudinal dimensions so that the same frame 12 may be used for both domestic and commercial closures, despite the fact that the commercial closures will include the unique stile construction of the present invention for the provision of the necessary increased vertical rigidity and wind strength.

Still further, the massiveness of the hollow, load bearing stile 54, rather than detracting from the overall appearance of the closure 10, imparts thereto an aesthetically pleasing effect. The open upper and

lower ends

72 and 74 of the stile 54, although said ends project partially exteriorly of the frame 12, are not apparent inwardly of the closure 10, since such open ends are not in the normal line of vision in the usual positioning of the closure.

I claim:

1. In a closure, the combination of: a frame including a header and a sill maintained in operative and spaced relationship by jambs connected between opposite extremities thereof, upper and lower track means incorporated respectively in said header and sill; a sash including upper and lower rails maintained in operative and spaced re lationship by stiles connected between opposite ends thereof; means operatively mounting said sash in said frame track for selective longitudinal movement within and relative to said frame; and at least one of said sash stiles having a reinforcing portion projecting through and from said frame presenting a generally rectangular face spaced exteriorly of said frame, said stile face extending the length of said stile between said rails, said stile face having its upper and lower ends terminating immediately adjacent, respectively, to the header and sill of said frame and having upper and lower reduced extremities disposed within said header and said sill for securement to said rails.

2. A closure as defined in claim 1 in which said reinforcing portion of said one sash stile is hollow throughout the length thereof between said rails.

3. A closure as defined in claim 1 in which said reinforcing portion of said one stile is hollow throughout the length thereof between said rails, said one stile having open ends adjacent said rails opening partially exteriorly of said frame.

4. In a closure, the combination of: a frame including a header and a sill maintained in operative and spaced relationship by jambs connected between opposite extremities thereof, upper and lower track means incorporated respectively in said header and sill; a pair of sash, each of said sash including upper and lower rails maintained in operative and spaced relationship by stiles connected between opposite ends thereof, said sash being mounted in and extending longitudinally of said frame with one of said sash in an inner frame part and the other of said sash in an outer frame part, said inner and outer sash having normally mating stiles longitudinally intermediate said frame; means operatively mounting at least said inner sash in said frame track means for selective longitudinal movement within and relative to said frame; and said mating stile of said inner sash having a reinforcing portion projecting through and from said frame and presenting a face spaced exteriorly of said frame, said stile face extending lengthwise of said stile between said frame, said stile being lengthwise hollow and having open upper and lower ends opening partially exteriorly of said frame, said stile face having its upper and lower ends terminating immediately adjacent, respectively, to the header and sill of said frame and having upper and lower reduced extremities disposed within said header and said sill for securement of said rails.

5. A closure as defined in claim 4 in which said face of said mating stile reinforcing portion is a generally rectangular face spaced exteriorly of said frame.

References Cited UNITED STATES PATENTS 7/1957 Beamer 49-501 X 9/1965 Grossman 49-425 US. Cl. X.R. 49-501