US2491792A

US2491792A - Safety reversible window

Info

Publication number: US2491792A
Application number: US662486A
Authority: US
Inventors: Louis I Alperin
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-04-16
Filing date: 1946-04-16
Publication date: 1949-12-20
Anticipated expiration: 1966-12-20

Description

m. W49 L. I. ALPIERIN SAFETY REVERSIBLE WINDOW 3 Sheets-Sheet 1 Filed April 16, 1946 L.- l. ALPERIN SAFETY REVERSIBLE WINDOW w m my 3 Sheets-Sheet 3 Filed April 16, 1946 Ema line a Patented Dec. 20, 1949 UNITED STATES PATENT OFFICE 7 Claims.

My invention relates broadly to windows and more particularly to hardware for double hun slidable and reversible window sashes.

One of the objects of my invention is to provide a simplified arrangement of hardware for a double hung slidable and reversible window sash installation which enables such sashes to be operated in any desired vertically slida-ble position or in any tilting position.

Still another object of my invention is to provide an improved construction of hardware for double hung reversible window sash including weather stripping for air conditioning and protective purposes.

Still another object Of my invention is to provide a simplified construction of hardware assembly for operation of double hung slidalble window sash in tilting and reversing arrangements while providing a tight seal between the sash and frame when the sash is moved to normal vertical- 1y slidable positions.

A further object of my invention is to provide a wnstruction of hardware assembly for converting double hung slidable windows into tiltable and angularly adjustable windows in which pintle members are carried lby the window sash for coaction with recessed sash strips arranged to vertically slide in the double hung window stiles.

A still further object of my invention is to provide a construction of hardware assembly for installation on double hung reversible windows in which pintle members are arranged to be mounted on the window sash for coaction with recessed sash strips vertically slidable in the double hung window stiles with means associated with the pintles for latching the window sash in selected tilted positions with respect to the window stiles.

Other and further objects of my invention reside in an improved assembly of hardware for enabling double hung vertically slidable window sashes to be convertibly used in tilting or reverse positions as set forth more fully in the specification hereinafter following by referring to the accompanying drawings, in which:

Figure 1 is a front elevational view of a double hung vertically slidabl-e window in which the sashes are equipped with the hardware of my invention for enabling the sashes to be tilted or reversed in selective angular planes; Fig. 2 is a vertical sectional view taken on line 2-2 of Fig. 1 and illustrating the sash in dotted line position; Fig. 3 is a fragmentary elevational view of a window sash showing the sash strip interposed between the window sash and the window stile and interlocked for vertical adjustment in the normal manner intended for the operation of double hung window sashes; Fig. 4 is a vertical sectional view through the portion of the sash and stile of the window illustrated in Fig. 3 with certain of the parts partially broken away and shown in side elevation; Fig. 5 is a fragmentary vertical sectional view of the sash illustrated in Figs. 3 and 4 but showing the condition just prior to an orientation of the sash with the weather stripping withdrawn from the sash strip to allow tilting of the window sash; Fig. 6 is a View similar to the view illustrated in Fig. 5 but showing the window sash in itilted position with respect to the vertical window frame; Fig. '7 is a horizontal sectional view taken on substantially line 'l---? of Fig. 4; Fig. 8 is a horizontal sectional view taken substantially on line 88 of Fig. l; Fig. 9 is an enlarged sectional view taken substantially on line 9-4 of Fig. 6 and illustrating the sash in tilted position with respect to the sash stripping and double hung window frame; Fig. 10 is a vertical sectional view taken substantially on the line til- 10 of Fig. 3 and illustrating the weather stripping in extended position between the sash and the sash strip; Fig. 11 is a perspective view illustrating the spring member which is employed in association with the sash strip for floatatably mounting the window sash between the window stiles; Fig. 12 is a perspective view of a fragmentary portion of the sash strip showing the mortise therein for centering the spring member of Fig. 11; Fig. 13 is a view similar to the view illustrated in Fig. 12 but showing the opposite side of the sash strip including the recessed portion for receiving the pintle of the window sash, the recessed portions for the cam locks, the bearing surface over which the cam locks slide, and the mortises for receiving the window stripping carried by the window sash; Fig. 14 is a fragmentary .perspective view of the edge of one of the window sashes embodying my invention and showing the pintle, the locking cams, and the weather stripping associated therewith for coaction with the sash strip of Figs. 12 and 13; Fig. 15 is an elevational view of one form of hardware which is applied to the window sash; Fig. 16 is a side elevational view of the hardware shown in Fig. 15; Fig. 17 is a transverse sectional view taken on line Illl of Fig. 15; Fig. 18 is a perspective view of the weather strip and the actuator connected therewith which is employed in the double hung sash of m invention; Fig. 19 is a fragmentary perspective View of a portion of a sash strip showing a modified form of hardware carried thereby; Fig. 20 is a fragmentary perspective view of a portion of the window sash carrying the modified form 1 is of hardware which coacts with the form of hardware illustrated on the sash strip in Fig. 19; Fig. 21 is a transverse sectional View taken through the hardware which is carried by the sash in the arrangement shown in Fig. 20; Fig. 22 is a top plan view of a further modified form of hardware, including a pintle and locking cams adapted to be carried by the window sash, the hardware being partially broken away and shown in horizontal section; and Fig. 23 is a view similar to the view shown in Fig. 22 but illustrating a further modified form of hardware adapted to be mounted on the window sash.

The construction of hardware shown herein, for converting double hung window sash insta1la-. tions to enable the sashes to be operated either in vertically sliding arrangement or in tilting and reversing arrangement, is an improvement over the hardware set forth in my Letters Patent 2,332,500, granted October 26, 1943, for Safety reversible window, and my co-pending application Serial No. 605,581, filed July 17, 1945, for Safety reversible window, now Patent 2,423,675, dated July 8, 1947. In the reversible window construction of my present invention the hardware is considerably simplified and production costs decreased while increasing the effectiveness of operation of the window. In the hardware of my present invention a pintle member is secured to diametrically opposite positions of the window sash and is associated with a pair of cam members. A sash strip which is slidable in the window stiles is provided in each side of the window sash and carries a bearing plate and a central recess which coacts with the cam members of the window sash, respectively. The sash strip is provided with yieldable means operative to continuously urge the sash strip toward the window sash for fioatatingly suspending the sash between the stiles of the window frame, In this floatating position the sashes may be freed-by retraction of normally interlocking weather stripping and the tilting of the window frame sash to any desired angular position through the window frame. The arrangement of cam members carried by the hardware on the window sash and the coacting hardware carried by the sash strips is such that the sashes may be locked in vertically sliding position with respect to the sash strips for operation of the window as a normal double hung window. However, upon retraction of the window stripping, the window sash may be shifted to a tilting position in which the sash strips are each laterally displaced against the yielding action of the springs carried thereby to a position gripping the opposite window stiles for frictionally maintaining the window sash in any desired angular position to which the sash may be moved. When the reversible window is to be restored to operation as a double hung vertically slidable window, the sashes are moved to a position in alignment with the sash strips, whereupon, the cam members on the hardware carried by the window sashes enter the recesses in the hardware carried by the sash strips freeing the sash strips from frictional engagement with the window stiles and restoring the floatating support of the window sashes through the spring means carried by the window strips, thereby enabling the window sashes to again operate freely as a normal doublehung slidable in the

stiles

2 and 3. The usual sash weights and guide pulleys therefor have been illustrated as part of the standard double hung vertically slidable window. The sashes i and 5 are each cut down at opposite sides to a width narrower than normal, and the reduced width built up to the original normal width by sash strips represented at 6 and located at each opposite edge of the sashes 4 and 5. Each sash strip 5 serves as a supporting means for the sash through sash cord connecting means represented at 6a. The opposite edges of each of the sashes are mortised as represented at l to serve as a housing for the weather stripping represented at 8.

The weather stripping 8 is shown more clearly in Fig. 18 as provided with a recessed leading edge represented at 9 and a horizontally extending actuator l5 secured at one side of the weather strip 8. The actuator ii] is offset from the center of the weather strip 8 so that the actuator ID in passing through the window sash represented at 4 is offset from the plane of the window glass represented at l l and may be advanced or retracted with respect thereto in a plane removed from the plane of the glass H. The actuator l9 passes through an escutcheon plate l2 secured to the inside of the frame of the window sash 4 and which serves as a bearing surface for the cam member I4 carried by manually operable lever device 15 which is pivoted at it on the actuator H1. The lever device I 5 is cut away or recessed at H to allow the lever member to move to the position represented in Fig. 4 in which weather strip 8 is projected in slots 1 by means of the symmetrically disposed

springs

58 and 19 without obstruction by stop pin 20 on actuator H}. The stop pin 20 carried by actuator it serves to limit the outward projection of the weather strip 8 against the action of coil springs l8 and i9 and at the same time serves as a stop for the cam i l of lever I 5 in the p sition illustrated in Fig. 4 when the weather strip 8 is retracted into the slot, groove, or mortise I. The actuator it also carries a diametrically dis,

- posed stop 2! which serves as an abutment for the lever 15 in the position illustrated in Fig. 6, while the sash is in a position for angular or tilting movement for reversible operation within the window frame.

The weather strip 8 is recessed at 9 to permit the weather strip to clear at its center the hardware fitting which is carried by each oppositeside of the sash. This hardware fitting comprises a plate member 22 which is provided with a horizontally projecting pintle 23 at the center thereof and a pair of symmetrically arranged

cam members

24 and 25 at opposite sides of pintle 23. The plate 22 is provided with symmetricaliy arranged

screw apertures

28, 2?, 28 and 29 therein for the passage of securing screws 25a, 27a, 28a, and 29a, Axially disposed opposite portions of plate 22 are recessed as represented at 22:; and 22b for the passage of the weather strip 8 on opposite sides of the recess 9 thereon.

The coacting sash strip at each side of the window sash is constructed as represented more clearly in Figs. 12 and 13 wherein the side of the sash strip 6 which directly contacts the edge of the sash 4 is mortised as represented at 30 for receiving the weather strip 8 when the weather strip 8 is in projected position. The central portion of the sash strip 6 is provided with a hardware fitting represented by plate member 3| as having a central recess 32 adapted to receive pintle 23 extending from the sash 4 and having a pair or symmetrically arranged

recesses

34 and 35 operative to receive the

respective cam membars

24 and 25 on the sash plate 22 when the Window sash is in vertically slidable double hung arrangement as illustrated in Figs. 3 and 7. The plate 3| is secured to the sash strip 6 by screw members which pass through apertures represented at 33. The opposite ends of the plate member 3| are recessed as represented at 3 la and 3|b to receive the projecting portions of the weather strip 8. The opposite side of sash strip 6 is provided with a symmetrically arranged mortise represented at 36 within which I mount the flat leaf spring 31. The flat leaf spring 31 is shaped to conform with the mortise 36 in the sash strip 6. It will be observed that mortise 36 has a central elevated portion 35a, and a pair of oppositely disposed pocket-like recesses in each end thereof. The flat spring 31 has a center portion 310. which is shaped to snap over the raised center portion 36a of mortise 36 to provide a support for oppositely extending flat yieldable spring-like portions 312) and 310. These eXtending portions 311) and 310 tend to continuously bear against the opposite stiles of the window frame for continuously urging the sash strip 5 toward the opposite sides of the sash illustrated, for example, at 4. This arrangement of yieldable spring 31 is important because of the manner of locking the sashes in angularly shiftable and reversible position. The sash strip 6 is recessed at 38 immediately behind the recess 32 in plate 3| so that pintle 23 may project through plate 3| and be journaled thereby. When in the vertically slidable position illustrated in Figs. 3 and 7 ythe sash 4 has the

cam members

24 and 25 thereof fitting into

recesses

34 and 35 in plate 3|.

Any free space or lost motion connection between the sash strip 5 and the window stile 3 is taken up Or accommodated by yieldable spring strip 31, as represented in Figs. 3, 4, 7, and 8. Under these circumstances, wherein the window sash is free for vertically slidable movement, weather strip 8 is projected into interlocking engagement between sash 4 and sash strip 6. However, when the sashes are prepared for angular shiftable movement the weather strip 8 is retracted from engagement with sash strip 6 as represented in Fig. 5. Under these conditions sash 4 may be swung or angularly shifted from the position illustrated in Figs. 3, 4, 5, '7, and 8 to the position illustrated in Fig. 6. As the sash 4 commences the angular path of

movement cam members

24 and 25 ride out of recesses 34 and and establish frictional engagement with the bearing surface of plate 3| on sash strip 6. The area on plate 3|

intermediate recesses

34 and 35 is left plain and solid to serve as a trackway over which

cam members

24 and 25 are arranged to ride as represented in Figs. 6 and 9. The

cam members

24 and 25 force sash strip 6 transversely of the window frame I and establish a gripping engagement between sash strip 6 and the stiles 2 of the Window frame I. This gripping engagement is effected against the action of flat springs 31. The opposite ends of fiat spring 31 represented at 311) and 31c move into the recesses in sash strip 6 formed by the mortise 36. The

cam members

24 and 25, in riding against the solid fiat portion of plate 3|, serve to establish very substantial locking resistance for the window sash enabling window sash to be maintained in any angular position to which the sash is moved.

To decrease manufacturing costs I may construct hardware for the window sash as repre- 7;: her carried in each of the coacting sash strips,..

sented in Figs. 19, 20, 21, 22, and 23. In the construction illustrated in Fig. 17 a plate member of relatively low-grade metal 22 is provided and is apertured to receive metallic inserts of highgrade tool steel constituting pintle 23 and

cam members

24 and 25. The inserts are riveted to the plate 4|], and the plate 22 fastened to the sash 4. Thus the more expensive steel inserts constitute but a small portion of the over-all area of the hardware with commensurate saving in manufacturing costs.

As represented in Figs. 19, 20, and 21, the cam members carried by the sash 4 and the recesses carried by the sash strips 6 may be shaped to relieve the sudden frictional application of forces to opposite sides of the window frame. In Figs. 19-21 I have shown

cam members

44 and 45 in the form of segments high in the center and tapering at each end thereof to the base plate 46 which is secured to sash 4. Base plate 46 carries the pintle 41 projecting transversely therefrom. The coacting sash strip 6 illustrated in Fig. 19 contains plate member 48 having segmentalshaped recesses 49 and 50 coactin with

camshaped segments

44 and 45 on the hardware carried by the sash 4. A central aperture 5| in plate 48 on sash strip 6 receives the projecting end of pintle 41. As the sash 4 is angularly shifted from a vertical position to any selected angular position, the

segmental cams

44 and 45 gradually displace the sash stripping 6 from the sash 4 against the action of spring 31 gripping the opposite sides of the window frame by frictional contact between the sash strip 6 and the stiles 2 against the action of springs 31. The release of the sash strip 6 from the stiles 2 is also eifected gradually as the

cam segments

44 and 45 ride out of the segmental recesses 49 and 50, respectively.

In Fig. 22 I have shown the hardware for the sash formed from cast metal constituting a plate 52 having a central pintle 53 thereon and a pair of symmetrically arranged earns 54 and 55 on opposite sides of pintle 53. This relatively inexpensive hardware is secured to opposite edges of the sash 4. Because of the relative inexpensive construction of the cast hardware of Fig. 22 replacement may be made from time to time at low cost.

In order to facilitate movement of the window sash with respect to the sash strips, I may shape the cam members in the form of semi-spherical members as represented in Fig. 23 at 56 and 51. The semi-spherical members 56 and 51 are riveted into the plate 58 on opposite sides of the central pintle 59 as shown.

While I have described my invention in certain preferred embodiments, I realize that modifications may be made and I intend no limitations upon my invention other than may be imposed by the scope of the appended claims.

What I claim as new and desire to secure'by Letters Patent of the United States is as follows:

1. Hardware for controlling the position of a double-hung window sash in longitudinally ex tending stiles in a window frame for composite translatory and angular movement of the sash with respect to the window frame comprising sash strip members slidable in the stiles of a window frame and disposed at opposite edges of translatory and angularly movable window sashes, pintle members projecting from opposite sides of each window sash, a recessed plate memspring means interposed between the stiles and said sashstrips and symmetrically disposed above and. below said plate member, and means carried by said sashes and coacting with the recessed plate members carried by the coacting strip tending stiles in a window frame for composite translatory and angular movement of the sash with respect to the window frame comprising strip members slidable in the stiles of a window frame and disposed at opposite edges of translatory and angularly movable window sashes, hardware members attached to opposite sides of the window sashes, pintle members projecting from said hardware members and cam devices extending from said hardware members and symmetrically disposed on diametrically opposite sides of said pintle members, coacting hardware members carried by the inner faces of each of said strip members and being recessed to receive said pintle members and said cam devices, the external faces of said strip members being longitudinally recessed and spring means interposed between the longitudinal recessed strip members and the stiles for urging said strip members into engagement with the sides of said window sashes, whereby, said cam devices, upon rotation of said window sashes, about said pintle members frictionally engage the plate members carried by said strip members for forcing said strip members into frictional grip engagement with the stiles of said frame.

3. Hardware for controlling the position of a double hung window sash in longitudinally extending stiles in a window frame for composite translatory and angular movement of the sash with respect to the window frame comprising sash strip members slidable in the stiles of a window frame and disposed at opposite edges of translatory and angularly movable window sashes, pintle members and symmetrically arranged cam members projecting from opposite edges of the central portions of each window sash, hardware carried by each of said sash strip members on the faces adjacent said window sashes in alignment with the pintle members and cam members carried by" said window sashes and including recessed portions for receiving the pintle members, said sash strip members each having recesses in the faces adjacent said stiles and spring means operative in said recesses and interposed between said sash strip members and the stiles of the window frame for normally urging said sash strip members against the edges of said sashes, said cam members being operative under control of the angular movement of the window sashes for transversely displacing said' sash strip members for effecting frictional gripping engagement with said stiles.

4. Hardware for controlling the position of a double-hung window sash in longitudinally extending stiles in a window frame for composite translatory and angular movement of the sash with respect to the window framecomprising sash strip'members slidable in the stiles of' a window frame and disposed at opposite edges of translatory and angularly'movable window sashes, plate members secured to opposite-edges of each of said window sashes, pintle members extending axially from said plate members in opposite directions" strip members against said window sashes, said cam members being operative from the control of said angular movement of said sashes for effecting the compressionof said strip members against the action of said spring means into frictional gripping engagement with said stiles in anytransverse position of said window sashes along said stiles.

5. Hardware for controlling the position of a double-hung window sash in longitudinally extending stiles in a window frame for composite translatory and angular movement of the sash with respect to the window frame comprising sash strip members slidable in the stiles of a window frame and disposed at opposite edges of" translatory and angularly movable window sashes, plate members attachable to opposite edges of said window sashes, pintle members and" cam members each fastened to said plate mem-' bers and extending transversely therefrom, coacting plate members carried by said sash strip members and being recessed to receive said pintle members and cam members when said sashes operate longitudinally of said stiles, said sash strip members each having longitudinally extending recesses therein in the faces adjacent said stiles, a central projecting portion on each of said sash strip members in said recesses, fiat leaf spring members disposed in said recesses and detachably connected to said central projecting portions of said sash strip members and yieldably extending between said sash strip members and said stiles for urging said sash strip members). into engagement with the opposite edges of said" window sashes, said sash strip members having recesses therein for receiving the ends of said flat leaf spring members when said sash strip members are transversely displaced by movement of said window sashes and operation of said cam members against the plate members car ried by said sash strip members for frictionally gripping said window stiles.

6. Hardware for controlling the position of a double-hung window sash in longitudinally extending stiles in a window frame for composite translatory and angular movement of the sash with respect to the window frame comprising sash strip members slidable in the stiles of a.

window frameand disposed at opposite edges of translatory and angularly movable window sashes, plate members secured to opposite edges of each window sash and having segmentalshaped tapered cam-like members projecting therefrom, a central pintle disposed axially within said segmental-shaped tapered cam-like mem-,'

bers, coacting plate members carried by said sash strip members and having segmental-shaped tapered recesses therein, and a central recess therein respectively aligned with the segmentalshaped tapered cam-like members and the axially arranged pintle carried by the plate members fastened to said sashes, said sash strip members each having longitudinally extending recesses in the faces thereof adjacent said stiles, spring means interposed in said longitudinally extendin recesses between said sash strip members and said window stiles for normally urging said sash strip members into engagement with opposite sides of said window sashes, said segmental-shaped tapered cam-like members being operative for gradually shifting said sash strip members toward or away from said window stiles as said sashes are angularly shifted with respect to said window frame for looking or releasing said window sashes in selected angular positions with respect to said window frame.

7. Hardware for controlling the position of a double-hung window sash in longitudinally extending stiles in a window frame for composite translatory and angular movement of the sash with respect to the window frame comprising strip members slidable in the stiles of a window frame and disposed at opposite edges of translatory and angularly movable window sashes, hardware members attached to opposite sides of the window sashes, pintle members projecting from said hardware members and cam devices extending from said hardware members and symmetrically disposed on diametrically opposite sides of said pintle members, coacting hardware members carried by the inner faces of each of said strip members and being recessed to receive said pintle members and said cam devices, the external faces of said members being longitudinally recessed with a central projecting portion extending from the longitudinal recess in each of said strip members, a substantially flat longitudinally extending spring strip individual to each of said recesses and having an offset portion disposed centrally thereof and a pair of resilient end portions with a shoulder intermediate the connection of said offset portion and said end portions, said spring strip being yieldably engageable at the shoulders thereof with the central projecting portion for detachably gripping the opposite ends of the central projecting portion in the longitudinal recess of each of said strip members with the end portions of said spring strip bearing against the adjacent stile for urging said strip members into engagement with the sides of said window sashes, whereby said cam devices, upon rotation of said window sashes, about said pintle members frictionally engage the plate members carried by said strip members for forcing said strip members into frictional grip engagement with the stiles of said frame.

LOUIS I. ALPERIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,287,741 Levyn June 23, 1942 2,332,500 Alperin Oct. 26, 1943 2,423,675 Alperin July 8 1947