US2741346A

US2741346A - Awning window construction

Info

Publication number: US2741346A
Application number: US379554A
Authority: US
Inventors: Elmer A Westman
Original assignee: IND MACHINE TOOL Co Inc
Current assignee: IND MACHINE TOOL Co Inc; INDUSTRIAL MACHINE TOOL COMPANY Inc
Priority date: 1953-09-11
Filing date: 1953-09-11
Publication date: 1956-04-10
Anticipated expiration: 1973-04-10

Description

April 1956 E. A. WESTMAN AWNING WINDOW CONSTRUCTION 3 Sheets-Sheet 1 Filed Sept. 11, 1953 IN VEN TOR.

3 H N WN m. 7 mi W1; A. MB a6 April 10, 1956 E. A. WESTMAN AWNING WINDOW CONSTRUCTION I: Sheets-Sheet 2 Filed Sept. 11, 1955 I El INVENTOR.

April 1956 E. A. WESTMAN AWNING WINDOW CONSTRUCTION 3 Sheets-Sheet 3 Filed Sept. 11, 1953 6 /A O J:

INVENTOR.

51/1463? A. WfJTMA/V ATTORNEYS United AWNING wn tnow coNsTnUcrroN Application September 11, 1953, Serial No. 37?,554

4 Claims. (Cl. 189-67) This invention relates to an improved window ly. Itfirelates particularly to that type of window assembly commonly termed an awning window wherein one or more swinging sash are pivoted upon horizontal pivots within a frame for swinging movement outwardly and for raisingand lowering of the pivotal mounting as the sash swing.

Such window structures are coming into wide use because of their convenience in providing ventilation while at thesame time preventing the entrance of rain though the window may be partly open.

An object of this invention is to provide such a window assembly wherein the operating mechanism is so constructed as to facilitate opening and closing of the sash andwherein the construction is such that the friction of such opening and closing movement is reduced to a minimum and the sash may be easily swung to and from the open and closed positions.

Another object is the provision of a window assembly of the character described wherein the various parts of the operating mechanism are so designed and arrange as to produce a compact assembly or" a finished character with a minimum of exposure of fastening devices on the outside of the window frame.

An important feature of the invention is the'provision of. complementary brackets which are channel-shaped in cross section and which are mounted within channelshaped jamb members and which brackets serve as guides to support linearly slidable bars that form a part of the operating mechanism for swinging the sash. An advantage is that the brackets are so constructed and the slidable bars are so formed that the bars travel through the brackets with a minimum of friction and the operation of the-mechanism is thereby facilitated.

Thebracketsserve not only to support theslidable bars for up and down movement but they also pivctally support the fulcrum links which links are pivoted at their outer ends to the sash to support the sash for swinging movement.

The brackets are so designed as to seat within the channel-shaped jamb members though such jamb members may vary as to the accuracy of their cross-sectional channel formation. The bottom corners of the brackets are provided with projecting seating ridges which engage snugly within the corners of the channel jamb to properly support thebra'cket and the bottom of the bracket and one side wall thereof are supported spaced from the bottom of the adjacent side wall of the channel jamb.

'Gther objects, advantages and meritorious features will more fully appear from the following specification, claims and accompanying drawings wherein:

Fig. 1 is a perspectiveof a window assembly embodying the invention;

Fig. Zis-an elevation partly brokenaway of the window assembly shown in Fi 1';

Fig. 3 is a vertical sectional view through the window assembly shown in Fig. 2 showing the sash closed;

'* aten Y the sill.

2,741,346 Patented Apr. 10, 1956 Fig. 4 isa cross sectional view taken on the line 44 of Fig. 3;

Fig. 5 is a vertical'sectional view taken on the same line as Fig. 3 but showing the swinging sash at an open position;

Fig. 6 is a cross sectional view taken through a window assembly on the line 6-6 of Fig. 3.;

Fig. 7 is a perspective of a fragment of a lower sash and operating mechanism therefor associated with the supporting bracket.

Fig. 1 illustrates a window assembly comprising upper andlower sash indicated as'U and L respectively, disposed between the jamb portions 10 of. the window frame, a sill which is indicated as 12, and a header 14. The jambs are complementary and spaced apart by the header and The individual jamb portions and the header portion and the sill portion are allchannel-shaped in cross section, as shown particularly in Figs. 3, 5 and 6. The channels open outwardly, i. e. outwardly of the building. As shown in Figs. 4 and 6 particularly, the outer side wall of each channel section has a height greater than that of the inner side wall. A flange 16 extends outwardly from the outer side wall. Flange 18 extends inwardly of the window opening from the inner side wall. The flange 18 is disposed substantially midway within the plane of the window.

The sash are here shown as provided with metal frames of conventional construction and having face plate portions 2% which cover the jamb channel openings when the sash are closed. These face plates 28 also overlap the flanges 25, as shown in Fig. 6. The header id is shown asprovided with an outer weather protective inner flange 22 secured thereto to overhang the top rail of the upper sash, as shown in Figs. 3 and 5.

The window assembly illustrated shows two swinging sash, but obviously any number of swinging sash desired might be provided, from one to a large plurality. The sash are disposed between the jambs as is common in this type. of window and each sash is supported for swinging movement by a pair of complementary individual adjustable fulcrum links 24. The two links of the pair of positioned on opposite sides of the sash and each is pivoted at one end to the sash, as at 26, as shown particularly in Figs. 5 and'7.

Each of said links is pivoted at its opposite end at 23. to a bracket element hereinafter described. The link may be adjusted in any desired fashion, as for example, as shown in my copending application, Serial No. 218,031 filed March 28, 1951, which became Patent No. 2,638,779 on September 14, 1954', the link is adapted to fold alongside the sash within the channel of the jarnb member when the sash is closed, all as shown in Figs. 2, 3 and 6.

An important feature of this invention is the bracket element to which the stationary end' of the link is pivoted at 28. This bracket element is indicated as 3%? and it is channel-shaped in cross section corresponding generally to the channel shape of the jamb member within which it ismounted.

Specifically, each bracket element has a bottom portion 32, on outer side wall portion 34-, and an inner side wall portion 36. The bracket element is of a size to be snugly received within a channel ofthe jamb member. The bottom of the bracket is supported spaced from the bottom of the channel jamb by a pair of projecting

corner ribs

38 and 4%); Such are shown with particular clarity in Fig. 4. The rib. 40 is so shaped as to seat within the adjacent corner of the channel j'amb and space the side wall 36 of the bracket from the adjacent side wall of the jarnb channel and space the bottom wall 32 of the bracket from the bottomwall of'the jamb channel.

The bracket is shown" as heldin place bya screw 42' extending through the side wall 34 of the bracket and" the adjacent side wall of the lamb channel. The brackets are of relatively short length, as shown in Figs. and 7. The brackets are complementary and one pair is disposed in proximity to the top of the window frame and the opposite pair in proximity to the bottom of the window frame. In Figs. 2, 3 and 5, the two adjacent brackets are shown at the bottom so as to provide greater length of support for the slidebars 44.

These brackets serve two functions. They serve to support the slide bars and the operating mechanism for slidable movement. They also serve as a support for the inner ends of the fulcrum links 24.

Inasmuch as the brackets are provided with ribs 38 and 4d hereinabove discussed, such brackets are adapted to seat snugly in the corners of the jamb channels regardless of slight malformations of such channels. more, the inner wall 36 of each bracket is disposed spaced from the adjacent inner wall of the jamb channel and provides ample clearance for the head ofthe flange 28 which secures the inner end of the fulcrum link 24 to such wall 36.

The slide bars 44 form a part of the operating mechanismand are slidably supported within the brackets as Further- What I claim is: r

'1. in a window assembly, a frame having complementary jambs channel-shaped in cross section, complementai'y brackets channel-shaped in cross section correspondingly mounted one. within each jamb and seated against opposite side walls of the jamb channels at the bottom thereof, said jamb channels and bracket'channels being open outwardl ga swin ing sash disposed between the fiambs and having flanges adapted to close over the open sides of the channel frames, complementary ful links upon opposite sides of the sash each pivoted to the sash at one end of the link and pivoted at the opposite end of the link to the inner side of the inner side wall of the adjacent bracket to fold within said channel bracket, a sash operator including a slide bar disposed within each jamb and coupled with the sash to swing the sash, each slide bar supported within the channel bracket of the jamb and held spaced shown particularly in Figs. 4 and 6. Each slide bar 44 is cut away along one side providing a groove or a chan nel therein as shown at 46 and is provided with a groove 43 along each edge which groove 48 extends linearly of the slide bar, all as shown particularly in Figs. 4 and 6. Grooving the slide bar'as described reduces its frictional contact with the inner face and the bottom of the bracket 3%) so that it slides thereover readily. Each slide bar. is held toward the bottom of the bracket channel by a guide 7 element Silprojecting inwardly of the side wall 34 of the bracket and is held toward the side wall 32 by a guide element 52 projecting inwardly from the bottom of the bracket, as shown in Figs. 4 and 6. The brackets hold the slide bars from contacting throughout their length the sliding movement of such bars. Each sash has a bracket arm 56 formed integrally with its top rail and the outer end of such arm is pivotally coupled with the slide bar by pivot pin 55.

Operating linkage is provided in the form of a crank 60 mounted on the shaft 52 which shaftis provided with a worm 64 which meshes with the gear segment on the 7 'end of the arm 68. This arm is pivotedat 76 within a in Figs. 3 and 5 is actuated to rotate the shaftand lift' the slide bars. The other link in the toggle is indicated as 82 and it extends from the link 78 to pivot 58 which connects the crank arm 56 at the top of the lower sash with the slide bar 44. It will beunderstood that complementary sets of operating mechanism are provided within each jamb and linked together through the shaft 80.

The employment or" the brackets described above provides not only a pivotal support for the fulcrum links 24 but a guide for the slide bars 44 and the brackets support the slide bars for easy guided slidable movement and afford a good pivotal support for the swinging windows;

they also facilitate the assembly of the sash and operating mechanism within the jamb members.

Though no part of this invention, the flange 18 of the inner side wall of the jamb channel is provided with gaskets 91 one of which is adapted to form a tight seal with a swinging sash and the other of which is adapted to form a tight seal with a storm sash when the same is placed in thewindo w.

.interior of the channel jamb elements and facilitate the V from the side walls of the jarnb channels forslidable movement over the outer side wall of the bracket, the outer side wall of each bracket provided with a guide rib adapted to engage the edge of the slide bar and the bottom of each bracket provided with a guide rib 1 characterized in that the bottom corners of therbrackets are provided with downwardly projecting ribs adapted to seat within the interior corners of the jambs spacing the bottom of each bracket from the bottom of' the jamb, that rib on the inner bottom corner of the bracket projecting laterally beyond the inner side wall of the" bracket, spacing such side wall of each bracket from the inner side wall of the jamb. V v

4. In a window assembly, a frame having complementary jambs channel-shaped'in cross section, two pairs of complementary brackets channel-shaped in cross section mounted within the two jarnbs, one pair in proximity to the tops of the jambs and the other pair in proximity to the bottoms of the jambs, a swinging sash foreach pair of brackets disposed between the jambs, a pair of complementary fulcrum links for each sash disposed on opposite sides of the sash and each link pivoted at one end thereof to the sash and pivoted at the opposite end thereof to the inner side wall of the'adjacent' channel-shaped bracket and on the inner side of said a wall, a sash operator including a slide bar disposed within each jarnb and coupled with the adjacent sides of. the two swinging sash, each slide bar disposed within the upper and lower, channel brackets of its jamb adjacent to the outer side wall of'the bracket for lengthis opposed to the'outer side wall of the bracket and being grooved along that edge which is opposed to the bottom of the bracket.

References Cited in the file of this patent UNITED STATES PATENTS Wiley May 16, 1939 Westman July 7, 1953 a i r l i l