US 2120614 A
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Description (OCR text may contain errors)
I June 14, 1938,.
K. F. .I oRss METAL DOUBLE HUNG WINDOW` Filed Deo. e, 1955 2 sheets-snaai. 1-
June 14, 1938A.
K. s=. JoRss METAL DOUBLE HUNG WINDOW- 2 sheets-sheet 2 Filed Dec. 6. 1935 m25# w s Patented June 14, 193s UNITED STATES lPATENT OFFICE following description.
One of the objects of the invention is the prof#v vision of an'improved metal frame for a double hung window.
' Another object of the invention is the provision of a new and improved manner of concealing and attaching the counterbalancing devices for the sliding window sashes.
Another and further object of the invention is the provision vof an improved weather stripping for Ithe window.
A still further object ofthe invention is' the provision of an improved-mechanical joint at the corners 'of the sash frames.
' Another and` still further object is the provision of an improved mechanical'connection between the sash frame muntins and the members making up the'sash frame itself.
Other further objects, details of mechanical improvement'and improved results of a window built in accordance with the present invention will appear in more detail from the following description when read in the light of the accom- -panying drawings.
All of the objects and novel features of iniproved construction comprising the invention are for thepurpose of providing an improved metal double hung window which is weather-tight, easy working, pleasingV of appearance and one thatA is of low cost as to' manufacture and cheap as to maintenance cost yet highly emcient in operation. v
In the drawings:
Fig. 1 is a horizontal sectional view through a window built in accordance with the present in- 45' vention. v Y
Fig. 2 is a vertical sectional view taken on the line 2--2 of Fig. 1 looking in the direction indicated by arrow.
Fig. 3 is a detailed perspective view partly in proved window.
Fig. 4 is a fragmentary View in vertical section through one of the frame members of the sash.
Fig. 5 is a sectional View taken onthe line 5 5 horizontal section, of a lower corner of the im of Fig. 4 illustrating the manner of attachment of a sash muntin to the sash frame member.
Fig. 6 is a fragmentary view partly in vertical section illustrating the manner of locking the sash corner joining members in place.- Fig. 7 is a detailed perspective view of a rubbing strip.
Having reference now to the drawings, it will Abe-seen` that the frame is made up of a head member A, a sill B joined by uprights or jambsvC and D. This frame is preferably composed of steelV and is shaped so that the upright or jamb members provide channelways l and if in which slide the inner and lower sash E, and with channelways 2 and 2a in which ,slide the upper and outer sash F.
The frame sill is shaped to provide a sill lamb 3 and in spaced parallel relationship thereto a weathering find. The frame head is shaped in a manner to provide similarly a head jamb d and a weathering iin e. At each of the corners oi vthe frame there is provided an l.shaped frame securportion il and behind the inner vertically disposed edge l2, see Fig. 3, of the frame sill. It
is of course understood that these angle clips or securing members are welded, or otherwise suit are the means for rigidly securing together the vertical and horizontal members making up the window frame. y
' The window sashes are of metallic construction and preferably aluminum. By reference to the several figures of the drawings it will be seen that the sash uprights it' and it and that the sash frame sill member it and head member i@ are provided on their inner iaces with a shallow channelway il adapted to receive the sash glass and the putty which secures said glass in place while their opposite and outer faces or edges are provided with a channelway it. Between the two channelways of the sash frame memlrs the members are hollow with the result that there is provided in each member a passageway or conduit i9. This passageway or conduit is utilized in the mechanical joint which I provide for securing the sash frame members 'together at the corners of the frame.
The particular construction of the members making up the sash frames is utilized to reduce the amount of metal used in the sash and thereby not only keep down the-expense of the sash but also to provide a sash which is light. The rigidity and strength of the sashframe members is assured by the inclusion of the integrally formed web 20 which constitutes one of the defining walls of the conduit I9.
As mentioned, I utilize this particular and peculiar construction in providing a novel and highly efcient corner joint for the sash frame members. To effect the joint I provide a. metallic angle iron H, see Fig. 6, one leg 2I of which is driven into the conduit I9 of the lower horizontal sash frame member I5 while theother rleg 22 of the iron is driven into the conduit I9 of the vertical sash frame member I3. I say that the legs are driven in'because they are of a dimension to provide a driving fit with the conduits. However, to assure against any displacement of the angle irons and to assure that once the mitered corners of the frame members are properly positioned they will be maintained in proper position to one another after said original fitting, I pin-prick as at 23 the upper and lower walls of the conduit to lock the sash frame members securely in proper position. e
By the provision of the above described corner joint for the sash frame a simple and cheap yet highly eiilcient joint is provided. By securing the sash frame at t. corners in the manner described the cost or welding the frame at its corners or the cost incident to some otherwell known manner oi' securing the frame members together is eliminated. I have found that my manner of securing the frame and its corners eifects a material reduction in the cost of manufacture yet at the same time provides a securing means which is highly eiiicient and effective in actual use.
To the end of further avoiding the necessity of any form ofwelding I further utilize the peculiar construction of the frame members of the sash in securing the several muntins in position within the sash frame. Figures 4 and 5 of the drawings illustrate the method and construction utilized by me in this connection. Atthose points where l a muntin is to be connected to a sash frame member oppositely disposed holes 2l and 2l are provided through the' walls 20 and 2l which constitute the bottom and top respectively of the conduit Il in the frame member. 'I'he muntin J is provided at its end with a tenon v2l which is inserted through the opening 2l and by the insertion of a proper tool through the opening 2l this tenon is bent 4or riveted down as at 28, all of which is clearly illustrated in Fig. 5 of the drawings.
The weather shipping for the window -and particularly the lamb weather stripping is of a novel and decidedly improved construction. The
weather stripping for the lambs of the window which parallels the adjacent wall of the sash" channelways.y Beyond the portitn .l the strip is termediate its length so that the upper and lower sections of weather stripping can be positioned i`n the frame independently of one another.'
As is clearly evident from Fig. 2 of the drawings the coiled ends 34 of the weather strip are Y positioned within the channels I8 provided in the edges of the vertical sash frame members, and due to the resilient nature of the strip these coils will contact the side walls which deiine the channelway in the sash frame members. It will be understood that as the window sashes are raised and lowered they will travel along the coiled portions of the weather strip but the resilient engagement of the strips with the sash is not sufiiciently great to in any manner impede such intendedmovement of the sash.
It is to be noted that the width of the window frame channelways which receive the window sash is greater than the thickness of the sash. which assures that the sash will slide easily, and further assures that if there is any settling of the building or distortion of the window frame dueto that reason or any other reason there will still be no tendency for the sash to bind in the frame and thus render diiiicult any raising or lowering of the window sash.
It is to be noted that the ends of vthe weatherl stripping are coiled in opposite directions. ThisI is for a specific purpose. In Fig. 2 the window sash nearer the top of the drawing is the inside sash while the other is the outside sash. Any wind pressure brought to bear against the outer surfaces of the window sashes has to pass the double lcontact of the weather strip with the walls defining the channel in the sash frame. I f any wind or air Apasses both of these contacts it is then within the coil of the weather strip and it has been found that the air pressure is largely and almost entirely dissipated within the weather strip itself due to the fact that the coil o! the strip imparts a circular motion to any air which may pass the strip. This dissipation of the air Y pressure within the strip has been found in actual 'practice to reduce to the minimum the chance of any outside air escaping past thewindow into the interior of the room.
The design of the weather stripping itself is lsuch that it will yield and permit a lateral movement of the sashes which in turn will tend to overcome any possible irregularity in the manufacture of the window as well as to take care of any settlement .of the masonry in the buildingwhich might tend to force or twist the window frame out of its proper or true position.
By reference to Figs. 2 and 3 ot the drawings it will be seen that weather stripping of the head and sill members of the upper and lower sashes is also taken care of. In the channelways of the head and sill members of the sashes there is placed a channelled non-metallic weather stripping material Il which receives the sill and head stripping tins l and l. The depth of the fins and the depth of the channelled stripping material 3l is such as to assure constant weathering even though the sashes are not moved to their fully closed positions and locked. In other vorm, the
'i the lower sash rail l5 at its inner side is pro- `weathering is also assured even though the masonry of the building may settle and tend to distort to some extent the window frame out of its proper and true position.
Weathering between the head of the lower sash and the lower end of the upper sash is provided by providing the upper sash at its lower end with an oisetchannelway or bracket 36 within which is positioned a strip of vfelt 31 or the like and providing the head of the lower sash member with-a channel member 38 of the same configuration and which has vits lower end 39 positioned to engage the felt strip under pressure when the sashes are in their closed positions.
To provide means for operating the lower sash vided with an integrally formed inwardly and downwardly curved portion 40 which preferably extends throughout the greater portion of the length of the member and serves as a sash operating handle.
It is always difficult to prevent iniiltration of air between the opposing faces of the vertical members of thevupper and lower sashes. Constructions in the past, so far as I am aware, have failed to adequately weather the window at this point. In my improved window constructionlt will be apparent that the upper and lower sashes are considerably separated although they lie in parallel planes. To provide against the -infiltration of air at the point above referred to, I have provided an improved rubbing strip designated asl a bulged portion 43, which bulged portion provides a pocket for the reception of a block M of felt or other suitable non-metallic material. This block is of greater width. than the width of the metallic strip and consequently the felt itself constitute's the weathering connection with the stiles or uprights of the upper and lower sashes, as is clearly apparent in Fig. 2 of the drawings. In this iigure of the drawings it will be seen that the rubbing strip M with the felt positioned in the pocket is secured to the jamb by means of suit.- able screws $5 or the like which pass through the elongated openings 46 in the strip end into the jamb portion 3i intermediate the jamb sash channels. In addition to securing the rubbing strip in place these screws serve also to act as a 'means for securing the weather stripping K to .the
P. One-of these devices is of courseprovided ineach of the window frame channelways so that there will be a counterbalancing device for each sash at each ofv its sides. 'I'he channelways in the window frame are -unusually deep which permits these counterbalancing Adevices to be po and completely concealed from view and protected from possible, damage. Connection between each individual sash balancing device and the particular sash `with which it functions is provided through clips Q, one end d1 of which is suitably secured to the sash adjacent its lower edge while the other end of thev clip is in' the form of an arm, one portion 48 of which parallels the sash f rame while the other portion -69 is bent to extend into the window frame channelway at a point behind both the sash and the weather stripping. This end 49 is provided with a slot 5U which receives the end 5I of the sash balancing device. To adequately lock the connection between the arm and the sash balancing device the extreme end of the arm 48 is crimped downwardly upon the end 5i of the sash balancing device, as appears at 52 in Fig. 3 of the drawings.
To p ermit of the construction above dened the Window frame jamb channelways are of greater width than the thickness of the window sash. Thus the clip arm 4Q can be positioned between' the vsash and the 'side wall of a window frame channel without causing any binding upon the reciprocatory movement of the sash within the jamb channel.
'I'he particular design and construction of the window frame, the weather stripping and the manner of interconnecting the counterbalancing devices with the sash frame permits easy and quick installation of the weather stripping and easy and quick installation of the sashes themselves as well as to provide easyaccessibility for the removal or installation of the once'aled counterbalancing devices. l
It should be of course obvious that the manner of fabricating the window frame and of fabricating the' sash is such' that the manufacturing cost of these members is appreciably reduced as compared to the cost of fabrication of frame and sash as now commonly manufactured.
The weathering of the window is particularly leffective and the convolute weatherstripping has been found to be unusually effective as ac tual tests have indicated that due to the' rotative movement imparted by the strip to any air which enters it, the strip tends to so thoroughly dissipate the air pressure that good weathering of the window can be obtained even if actual contact is not maintained between the weather strip and the walls of the sashy channels. f
Many other numerous and specific improved constructional features of the invention not Vonly from the standpoint of manufacture but from the standpoint of installation of the window and its effective operation, will be apparent to anyone skilled in the building art.
1. A window including a channeled window frame and a sash reciprocal therein, a sash baloutwardly from :the frame channel and having connection with the face of said sash adjacent V ancing device positioned beyond each end of the window sash' and in the frame channel, and
means extending from the sash balancing device its lower end and at a point exterior of the frame Y channel.
2. A window including a window @frame and a sash, said frame including jambs having channels for '.reciprocally receiving said sash, a weather stripping in said channels and having weathering engagement with said sash. a sash balancing device positioned back of the weather stripping in each of said channels. and a member extending from each balancing device 'outwardly '75 from the channel past the weather stripping and that portion of the sash within the channel and having attachment with the sash face at a point exterior of the frame channel.
3. In a double hung window, a window frame having jambs provided with channelways to revertical edges of said sashes extending into saidv channelways and themselves provided with channelways, weather stripping secured to said frame jambs at a point intermediate the jamb channelways and extending into the channelways and having weathering connection with the adjacent sides of said channelways, the ends of said weather stripping formed in a convolute, and the convolute ends of said stripping positioned within and having weathering contact with both walls of the sash channels.
4. A construction such as deiined in claim 3, wherein the convolute at one end of the weather strip is coiled towards the inner side of the window and the convolute at the other end of the weather strip is coiled towards the outer side of the window.
5. A construction 'such as defined in claim 3 wherein counterbalancing devices for the window sash are positioned in the jamb channelways back of said weather stripping and have operative connection with said window sashes at a point exterior of the :lamb channelways.
6. A construction such as deined in claim 3, wherein weathering is provided between the sash and the head and sill members' of the window `frame and between the head and bottom frame members of the lower and upper sash respectively.
7. A .window including a window frame and a sash, said frame including vertical lamb members having deep channelways vfor reciprocably receiving the vertical edges of said sash, the v ertical end walls of said sash being provided with channelways the walls of which extend into and are loosely movable within the said jamb channels'and have their edges terminating short of the backs of saidamb channels, a weather stripping in said jamb channels and provided with portions which extend into and have weathering engagement with the sash channelways, sash balancing devices in each of said frame channels and positioned intermediate the weather strlpping and the backs of said channelways and connection means extending from said sash balancing devices outwardly from the frame channels and having connection with the face of the sash at a point exterior of the trame channelways, for the purpose described. v
8. In a window, a window frame having vertical jambs provided with channelways adapted to reciprocably receive a window sash, the vertical end walls of said sash provided with chan'- .nelways the walls of which extend into and are loosely movable within the channelways of the frame, a weather strip secured to said frame jambs at one side of. its channelways and having a portion formed in a convolute which extends into and has a two-point weather engagement with the side walls of the channelway of the sash, and means to reciprocate said sash on the convolute portion of said weather strip when the sash is being opened and closed.
9. In a double hung window, a window frame having vertical jambs, each jamb provided with a pair of vertically disposed channelways adapted to reciprocably receive upper and lower sashes arranged in separated parallel relationship, weather stripping secured to each of said frame jambs and having a portion which parallels one wall of each of the frame channelways and has an inwardly and forwardly extending portion which terminates in a convolute which extends throughout the length of the channelway, the vertical edges of said sash provided with channelways adaptedA to receive and have a two-point weathering engagement with the convolutes of said weather strips, and means to slide saidsash on the convolute portions of said weather strips to open and close said window.
10. In a window a window frame having vertical jambs provided with channelways adapted to reciprocably receive a window sash and a parting strip intermediate said channelways, the vertical edges of said sash provided with channelways the walls of which extend into and are loosely movable within the channelways of the frame, a weather -strip for each of said frame jambs, said strips having a central portion of a U-shape in cross section and adapted to receive the parting strip and be secured thereto, the legs of said U-portions of the strips paralleling the adjacent side walls of the jamb channelways, said strips beyond their U-shaped portions being bent to extend around the vertical edges of one of the walls defining the sash channelways and terminating in convolute portions which are positioned within the channelways of the sash and have spring engagement with both walls of said sashchannelways throughout the length of said walls, for the purpose described.
11. A structure as defined in claim 8, wherein counterbalancing devices for the window sash are positioned in the jamb channelways in the space between the backs of said weather stripping and the backs of said channelways and have with one wall of said frame lamb channelways.
and its other end extending around the edge of one wall of said sash channelway and terminating in a convolute, anclY the convolute end oi' said weather stripping being disposed within the channelwayso'f the sash and having weathering engagement with both of the side walls thereof.
KARL F. JORSS.