US2886148A

US2886148A - Double hung window

Info

Publication number: US2886148A
Application number: US542339A
Authority: US
Inventors: John B Davis
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-10-24
Filing date: 1955-10-24
Publication date: 1959-05-12
Anticipated expiration: 1976-05-12

Description

May 12, 1959 J. B. DAVIS 2,886,148

7 DOUBLE HUNG WINDOW 7 Filed Oct. 24, 1955 2 Sheets-Sheet 1 1/ John B. Davis INVENTOR ATTORNEY y 19.59 L J. B. DAVIS 7 2,886,148

I DOUBLE HUNG WINDOW Filed Oct. 24, 1955 2 Sheets-Sheet 2 1 I19 9 10 L M I M 3 1/0. u I

I "A m! John B. Dav/5 may l INVENTOR.

A TTORNET Ibis invention relates to metal window and ash frames and it has particular reference to improvements in a double hung, vertically sliding sash windows.

The principal object of the invention is to provide a window in which the contour design of the extruded elements making up the window and sash frames is especially created to accommodate double and triple weather seals at vulnerable points, such as at the sill, meeting rail,

inuntins and header, thus to positively insure against infiltration of moisture and file dust particles. Also, the

arrangement is such that the elements of the upper and lower'sash frames are easily assembled and when assembled, the sash frames are as easily mounted in the window frame with all parts coordinating to provide a window adequately sealed against driving rain and :blowing dus't storms.

A particular object of the invention is to provide a lower sash rail incorporating achannel and a depending skirt or flange, both carrying pile Weatherstripping, the weather-stripping in the channel being of substantially U-shape in transverse section and receiving a longitudinally coextensive rib formed on the stool while the Weatherstripping of the depending flange engages the rear face of the stool in closed position of the lower sash,

the arrangement providing triple sealing against water and dust which would otherwise enter below this sash. a

United States Patent i Still another object ofthe invention is to improve the meeting rails of thesash frames through the provisiloniof a horizontal upper flange integral with the :ineeting rail of the lower sash frame which overlies the confwuting edge of the meeting rail of the upper sash frame in closed position of the sashes and a :pair ofhorizomal interlocking lower flanges longitudinallycoextensive with the lower edges of the meeting rails, there being provided between the upper horizontal flange and the lower interlocking flanges longitudinally parallel grooves, one in each meeting rail and vertically offset to provide double weathersealing between the meeting rails.

Other objects will appear as the description procefids when considered with the annexed drawings, whe ein:

fully assembled window, composed of a sill 11; parallel jambs 12 and a header 13. The jambs 12 and header13 are identical in transverse section, each being extruded. Each jamb 12 is formed with longitudinally parallel and spaced apart exteriorflanges, 14. and 15.whicl 1engage the,

stiles and trim (not shown) of a window opening, or in 2,886,148 Patented May12', 1959 2 the ease of double or multiple windows these

flanges

14 and 15 interlock with inner and outer facings 16 and 17, respectively, of a mullion 18, as shown in Figure 3.

Each

jamb

12 and 13 has a longitudinally coextensive and perpendicular interior flange 19. These flanges 19 form continuations of a like flange 20 (Figure 1) formed on the header 13, producing an outer stop for the upper sash frames, generally indicated by reference character A. Opposite end outer stop orflange 19 is an inner stop or flange 21 which is formed by one flange of an angle member 22, secured to the jamb by vertically spaced screws 23. These angle members 22 are identical to angle member 24 (Figure 2) secured to the lintel 13 by horizontally spaced screws 25. The stop or flange 26 of the angle member 24 constitutes a continuation of the stops 21 of the jambs 12 Formed integrally on each jamb 12 midway between the outer stop 19- and inner stop 21 is a vertical parting strip 27, separating the upper sash frame A from the lower sash frame, broadly designated by reference character B. In like manner, a horizontal parting strip 28 (Figure 2) is madeintegral with the lintel 13 and constitutes a continuation of the parting strips 27 of the jambs 12.

A glass pane 29 for the upper sash frame A is held in place'by a glazing strip 30, secured to opposing faces of the jambs 12 by screws 31, These glazing strips are identical and in each, thewall 32 thereof next adjacent the glass pane 29 is thicker than the companion wall to provide sufficient stock for a groove 33, in which is pressed a plastic glazing tube 34. A glazing strip 35 is interposed between the outer surface of the pane 29 and a glazing flange 36 formed on the stiles of the upper sash frame A and generally designated by reference numeral 37. The stiles 37 of the upper sash frame A are identical to each other and to the stiles 38 of the lower sash frame B. Each stile .is substantially U-shape in transverse section and each confronts a jamb 12, thus provide a vertica'l chamber 39 in which is longitudinally disposed a fie):- ible tubular housing 40 containing a spiral balance spring 41. These spiral balances are of conventional manufac- The upper end of the spiral balance spring 41 which balances the upper sash frame A is fastened in the tubular housing 40 and the latter is secured atits upper end to the top of a jarnb. 12 by a screw 42 (Figure 2). The lower end of the spiral tape 41 which extends out of the bottom of the tubular housing 40 is anchored to a bracket 43 (FigureZ), one of'which is secured by screws 44 tothe underside of the bottom rail 45 of the upper sash A adjacent each side thereof and which protrudes intO, thesash channel defined by the stops 19 and parting strip 27.

The lower sash frame B is balanced in like manner. The stiles 3$ of the sash frame B are also substantially ll-shaped and each confronts a jamb -12and are retained for sliding movement by thestop 21 and parting strip 27. In the compartment 46 defined by the stiles 38 and jambs 12 is mounted a flexible plastic tube 47, secured to a 12 at its upper end by a screw 48 (Figure 2). A balancing tape 49 is secured at its upper end in the housing 47 and extends from the lower end thereof where it anchored to the bottom of the lower sash frame B by means ofa bracket 50 (Figure 2), one ofwhich is secured by screws 51 to the underside of the bottom rail I engage the inner surface of the glass. This'tube is a continuation of the glazing tube 33, previously described.

A flat glazing strip 57 opposes the glazing tube 56'on 'the outer surface of the glass 55 and is held in place by the depending glazing flange 58 integral withthe meeting 11 rail 52.

The meeting rail 52 has a longitudinally coextensive 'rib 58 (Figure 2), provided with an undercut lip 59 which engages an upturned lip 60 formed on a horizontal depending leg 61 of the meeting rail 45 of the upper sash 11 frame A. Formed in the side of the meeting rail 5.2 which confronts the meeting rail45 is an elongate, horizontal groove 62 which contains the pile Weatherstrip 63,

bearing against the inner face of the meetingrail 45 of the upper sash frame A in closed position of the two sashes. Immediately below the Weatherstrip 63, the meeting rail 45 is grooved longitudinally to receive pile Weatherstrip 64. These weatherstn'ps are brought into contiguity when the two sashes are closed so that moisture, in order to enter between the two sashes, would be required to travel a circuitous course. To further preclude any such likelihood, the meeting rail 52 is formed with a horizontal, outwardly projecting flange 65 whose outer edge overlies the space between the two meeting rails and rests on the inner edge of the meeting rail 45 in closed position of the sashes.

A locking lever 66 is pivotally mounted on the meeting rail 45 adjacent each end thereof by means of a stud 67 and is rotatable in a direction away from the jambs 12 to overlie the meeting rail 52 of the bottom sash B to secure the same against upward displacement. The bottom rail 68 (Figure 2) of the lower sash frame B is triple sealed against moisture and dust infiltration.

A horizontal channel 69 is formed in the underside of sides of the rib 71, a double seal at this point obtains;

A third seal is provided by virtue of the engagement of a pile Weatherstrip 73 with the vertical outer surface 74 of the stool 72; the Weatherstrip 73 being retained in a.

groove 75 extending longitudinally in a horizontal flange 76 integral with and depending from the bottom rail 68 of the lower sash B.

Driving rain or blowing dust impinging the sill 11 are first resisted by the horizontal Weatherstrip 73 but if any such moisture, dust or cold air should rise above the Weatherstrip 73, it would not be possible for them to penetrate beyond the double seat created between the Weatherstrip 70 and the rib 71.

The top rail 77 of the upper sash frame A (Figure 2) is identical in transverse section to the

stiles

38 and 39 of both frames A and B. The inner side 78 of the top rail 77 is longitudinally grooved to receive the pile Weatherstrip 79 which bears against the parting strip 26 on the lintel 13. The opposing side '80 of the rail 77 is similarly grooved to receive the pile Weatherstrip 81 which bears against the outer stop 20 of the upper sash frame. This identical sealing arrangement is continuous throughout the entire perimeter of both the upper and lower sashes, hence a double seal exists except at the point where the lower sash engages the sill 11 and at this point a triple seal is provided, 'as explained.

A glazing strip 82 is secured by screws 83 (Figure 2) strip 85 is interposed between the outer surface of the pane 29 and a glazing flange 86 integral with and. depending from the top sash rail 78. An identical glazing strip 87 is affixed to the meeting rail 45 and is identical to the upper glazing strip 82, thesame having a glazing tube 88 bearing against the pane 29 while a fiat glazing strip 89 is interposed between the outer surface of the glass 29 and a glazing flange 90, formed on the outer edge of the meeting rail 45.

Both sash frames A and B are shown as being provided with muntins, generally identified in both cases by reference numeral 100. For the sake of clarity, reference numerals identifying parts of the muntins will be applied to the enlarged view in Figure 4.

The muntin is comprised of a horizontal, substantially T-shaped rail 101 which lies between the upper and lower sections of the

glass panes

29 and 55. To illustrate the muntin in Figure 4, an enlarged view is taken of the muntin shown in the upper sash frame A in which the pane is indicated by reference numeral 29. The same references will be used to identify like parts in the muntin of the lower sash frame B. The transverse flange 102 bears against the confronting edges of the sections of the glass pane 29 while glazing tubes 103,

- embedded in grooves in glazing strips 104, bear against the opposite sides of the glass sections. The glazing strips 104 are not unlike the glazing strips about the perimeter of the sashes but are held by screws 105 threaded into a longitudinally coextensive enlarged portion 106 extending between the flange .102 and a similar but narrower flange i 107 on the edge of the rail 10-1 opposite the flange 102.

In order to limit lateral displacement of the two sash frames A and B, the stiles of each frame are provided adjacent their upper and lower ends with recesses in which are mounted studs 112 of nylon. These studs are interposed between the sash frames and the sash channels and function as guides to insure positive rectilineal travel of the sash frames in their respective channels.

A screen frame 108 is adapted to be seated in a recess provided therefor between the sill 11, jambs 12 and lintel 13. The screen 109 is stretched in the frame by means of the appended claims is also considered to be within the spirit and intent of the invention.

What is claimed is:

1. In a window structure having a frame comprising a header, sill and jambs of extruded metal, the header and jambs being of identical profile in transverse section and each having longitudinally coextensive stops and a parting strip defining parallel sash channels, and upper and lower glazed sash frames each having a top rail and stiles of identical profile in transverse section, a meeting rail on the bottom of the upper sash frame having a longitudinally coextensive upturned lip on its lower edge, a longitudinally coextensive lip on the top rail of the lower sash frame, said top rail being a meeting rail, adapted to inter-engage the lip of the upper sash frame meeting rail in closed positions of the sash frames, weather strips retained in longitudinally coextensive grooves in each side of the top rail of the upper glazed sash and stiles of each of the sash frames in slidable engagement with the stops and parting rail, weather strips disposed in vertically offset, longitudinally coextensive grooves in the confronting faces of the meeting rails, a bottom rail on the lower sash frame having a longitudinally coextensive channel and a grooved, depending flange, a stool integral with the sill, a longitudinally coextensive rib on the stool adapted to be received in the -channel, a Weatherstrip in the channel of inverted YU shape in transverse section adapted to embrace the rib, and a weather strip in the groove of the depending flange adapted to engage a vertical portion of the stool below the plane of the rib.

and jarnbs each having longitudinally coextensive stops and a parting strip defining parallel sash channels, and upper and lower glazed sash frames each having a top rail and stiles, a meeting rail on the bottom of the upper sash frame having an upturned lip on its lower edge, a lip on the top rail of the lower sash frame, said top rail being a meeting rail, adapted to inter-engage the lip of the upper sash frame meeting rail in closed positions of the sash frames, weather strips retained in grooves in each side of the top rail of the upper glazed sash and stiles of each of the sash frames in slidable engagement with the stops and parting rail, weather strips disposed in grooves in the confronting faces of the meeting rails, a bottom rail on the lower sash frame having a channel and a grooved, depending flange, a stool integral with the sill, a rib on the stool adapted to be received in the channel, a weather strip in the channel adapted to embrace the rib, and a weather strip in the groove of the depending flange adapted to engage a vertical portion of the stool below the plane of the rib.

3. In a window structure having a frame comprising a header, jambs and a sill having a stool, and stops carried by the header and jarnbs, and having a parting strip intermediate the stops and defining therewith slide channels for an upper and a lower glazed sash frame, a weather stripping carried by each of the sash frames in frictional engagement with the stops and parting strips, a meeting rail on the upper sash frame, a meeting rail on the lower sash frame, the meeting rails having confronting slots, one above the other, a weather strip in each of the slots, one being in frictional engagement with the contronting face of each meeting rail in closed positions of the sash frames, a bottom rail on the lower sash frame having a longitudinal channel confronting the stool, a longitudinal depending flange on the bottom rail having a longitudinal groove, a longitudinal rib on a horizontal portion of the stool, a weather strip in the longitudinal channel engageable with the top and sides of the rib, and a weather strip in the groove of the flange frictionally engageable with a vertical portion of the stool in closed position of the lower sash frame.

4. The structure of claim 3 wherein the sash frames have stiles each apertured. adjacent their upper and lower ends in the portions thereof confronting their respective channels, the apertures retaining self lubricating, replaceable studs adapted to insure rectilinear travel of the sash frames in their respective channels while at the same time permitting free movement of the sash frames relative to the channels, the arrangement being such that the Weather strip in the longitudinal channel is positively aligned with the top and sides of the rib, in eifective sealing engagement therewith, when the lower sash frame is in its closed position.

References Cited in the file of this patent UNITED STATES PATENTS 2,250,723 Peremi et al. July 29, 1941 2,599,183 Kessler June 3, 1952 2,747,240 Peterson May 29, 1956 FOREIGN PATENTS 481,457 Great Britain Mar. 11, 1938 566,038 Great Britain Dec. 11, 1944