US 876556 A
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Description (OCR text may contain errors)
PATENTED JAN. 14, 1908.
E. H. JOHNSON. METALLIC WINDOW SASH. APPLICATION FILED MAR. 27, 1907.
EDWARD H. JOHNSON, OF LOS ANGELES, CALIFORNIA.
Specification of Letters Patent.
Patented Jan. 14:, 1908.
Application filed March 27. 1907. Serial No. 364.791
To all whom it may concern:
Be it known that I, EDWARD H. JOHNSON, a citizen of the United States, residing at Los Angeles, county of Los Angeles, State of California, have invented new and useful Improvements in Metallic Window-Sashes, of which the following is a specification.
My invention. relates to awindow sash formed of sheet metal and the object thereof is to provide a window sash which will be light, and at the same time rigid, and in which the glass can be quickly secured therein or taken out of the same. I accomplish this object by the sash described herein and illustrated in the accompanying drawings in which:
Figure 1 is a front elevation of. an upper and lower window sash embodying my invention, with a portion of the surrounding frame shown. Figs. 2, to 6 are sectional fragmentary parts of thesash to show the details of construction.
In the drawings 10 is the bottom rail and 11 is the top rail of the bottom frame of my improved sash frame when the window consists of two frames, and 12 is the bottom rail, and 13 is the top rail of the top frame of my improved sash frame. The u per edge of the inner face of the to rail 0 the top sash frame is connected to t e top plate 14'by a double roll lap seam 15. The inner face of the top rail is vertical from its junction with the top plate a suitable distance which is as far as desired, when the sheet metal of which it is composed is bent at an angle to the ver tical line downwardly as best shown at 16 in Fi 2 until it reaches the point at which it will engage the pane of glass 17, it is then bent upwardly and a little ofi the vertical line so as to leave a s ace between the pane of glass and the metaFas shown at 18. The sheet is then bent on a line parallel with the top plate as shown at 19, and is then bent downwardly and inwardly and then doubled back on itself to form the lockin ledge 20. It is then bent upwardly paralle with the inner face of the rail to form the outer face of the top rail and is then united to the top plate by a double roll lap seam 22.
The bottom rail of the bottom sash is connected to the bottom plate23 byra double roll lap seam 24. The inner face of the bottom rail is vertical from its junction with the bottom plate a suitable distance, which is as far as desired, when the sheet metal of which it is composed is bent at an angle to the vertical line upwardly as shown at 25 in Fig. 4 until it reaches the oint at which it will engage the pane of g ass .26. It is then bent downwardly and a little off the vertical line so as to leave a space between the pane of glass and the metal as shown at 2 6 The sheet is then bent on a line at right angles with the inner face as shown at 27, and is then bent upwardly and inwardly and then doubled back on itself to form the locking ledge 28. It is then bent downwardly parallel with the inner face of the rail to form the outer face of the bottom rail and is then united to the bottom plate by a double roll lap seam 29. When the ledge 30 of the window casing slopes downwardly and outwardly, as is usual, the outer face of the bottom rail of the bottom frame will be wider than the inner face. The top rail of the bottom sash frame is formed in the samemanner as the top rail of the top sash frame,except that the top plate is connected to the inner face of the top, rail by horizontal double roll lap seam 31 instead of a vertical seam as shown at 15, and extends-beyond the inner face of the rail to form a closure ledge 32, the inner face being projected as shown, and formin a part of the closure ledge.
The ottom rail of the top sash frame is formed in the same manner as the bottom rail of the bottom sash frame, except that the double roll lap seam 33 is in the same plane as the bottom plate which is extended eyond'the inner face of the bottom rail and with the projected inner surface forms a closure ledge 34'which laps the .closure ledge 32 of the other frame and makes a dust proof joint between the two sash frames.
These closure ledges can be omitted if desired.
The side rails of thediflerent frames are all of the same construction, and I will describe only one side of the top frame as the others are constructed in the same manner. The inner vertical surface 35 pro'ects upwardly back of the'inner surface of t e top rail, and
is connected at the to with the top edge of the top rail by a doub e roll lap seam.
The outer edge of side rail 35 is bent between the tcp and bottom rails to form with the edge closure strip a double lap seam as shown at 40. At the top and bottom rails that portion of the metal which below forms the lap seam is cut away and the ends of the end rails are bent around back of the side pieces and with the edge closure strips are into grooves 55 where it is securely retained ormed lnto double lap seams. The upper After the sash is formed as beend is cut away so as to fit the bevel of the top rail, and the side rail from its vertical face which lies in a plane parallel with the vertical face of the top rail is bent inwardly on an angle as best shown at 36 until it reaches the point at which it will en age the pane of glass 17. It is then bent bac wardly and a little off the plane of the vertical face scan to leave a space between'the pane of glass and the .metal as shown at 37. The sheet isthen bent on a line at right angles n away therefrom and is then bent backwar ly and inwardly and then doubled back on itself to form a locking ledge 38. It is, then bent parallel with the vertical inner face. The outer edges of the sheet are united by the double roll lap seams 39 and 40 to the end closure plate 41. The end closure plate is bent so as to form guide groove 42 into which is received guide tongue 43, of the detached retaining strip 44 which travels in the usual guideways of the window frame 45 and holds the sash frames from separating therefrom. Groove 42 is closed by the to plate but is open at the bottom, so that if sash could be lowered its full extent thereby bringing with it the retaining strip. The retaining strip could then be secured against moving upwardly when .the upper sash could then be raised and taken out of the window frame. It will be understood that this retaining strip is a little shorter than the vertical side rails.
- The window frame is provided with pulleys 46 over which pass chains 47 having one end secured to the weight 48, by means of which the weight of the sash frame is counterbal-- anced, and the other. end secured to the retaining strip. Where there are a'plurahty of panes in the'sash frame they are separated by mullions 49. 45'
These mullicns are composed of an outer member .50 and an inner member 51. The innermember is composed of a single piece of sheet metal, the edges of which are arallel and form supporting ledges 52 which support or bear against'the ed es of the glass. From the supporting lefges the members bend in opposite directions to form bearing ledges 53 and from thebearing ledges the metal may be bent in any ap ropriate shape. The outer member is of su stantially the same form as the inner member except that the edges are projected bey 0nd the other member and are turned to form catches 54 which are sprungover the other member when the'part'is put in place.
To secure the chain to theretaining strip a groove 55 is cutin the inner portion of the retaining strip as shown in Fig. 5 and a small opening 56 is made in one side and pin 57 is passed through opening 56 and throu h the end of the chain, when the pin is pu ed up esired the top thereto to make a water-tight joint.
in its place. fore described locking strips 58 are provided for securing the lass to the sash. These locking stri s are 'ormed of a single piece of sheet meta one edge of which 59 bears against and su ports the edge of the glass and I will call t at part of the same the supporting ledge. Thenext portion 60 bears against the face of the glass and I willcall it the bearing ledge. From the bearing ledge themetal is turned at an angle and runs to the outer face of the sash and is then doubled back on itself and the edge turned over to form the locking pocket 61 which engages the locking ledge of the sash.
It will be observed that the pane of lass must be of the size to pass within the loo g ledges of the sash and that the supporting ledges of the locking strips are preferably in the same plane as the top of the lockin led e. After the parts are constructed as be ore escribed I place a locking strip on theilower edge of the pane of glass and then place the lass and locking strip in position in the I then put in side locking strips and after that I' ut in place the top locking strip. The last si e locking strip put in place and the top locking strip have to be sprung into position, and when it glass from the sash with a thin knife these strips can be removed by springin them until they Will come out. After t e lockin strips and glass are secured in place a sma amount of putty can be secured upon the top edge of the locking strip to cement the glass 13 this construction it will be seen that'at a the corners of the sash-frame there is a double row .of lap joints along two edges where the side and end rails overlap each other and is desired to remove the thereby making an extremely rigid joint and forming a brace in two directions. It will also be observed that the locking stri s also bear a ainst the ed es of the glass an upon the loc ing ledges o? the sash frame, thus still further bracing the the glass is in place wooden frame with by utty.
I-lhving described my invention what I claim is:
' 1. A metal window sash frame havin the ends'of the end rails on the outside 0 the ends of the side rails and bent backjaround the outside edges of the side rails a d having the ends of the side rails termin ting on a the frame is as rigid as a the glass secured therein line with the outside edges of the end rails and secured thereto by la scams.
2. A metal window sas frame composed of side and end rails having vertical parallel faces and intermediate portions bent to form bearin lodges and locking ledges, each rail being ormed of a continuous piece of metal,
sash frame, so that whenamass the ends of said rails overlapping; closure plates for the outer portions of said rails, all of said parts being secured together by lap seams; and locking strips provided with diate portions bent to form bearing ledges and locking ledges, each rail being formed of a continuous piece of metal; closure plates for the outer portions of said rails, said closure plates being formed of continuous strips of metal bent in the center to form guiding grooves, in combination with retaining strips having tongues adapted to enter said guiding grooves, v 4. The combination of a metal window sash frame having guide grooves in the vertical edges thereof, said grooves being open at the bottom and closed at the top; and detached retaining strips having guide tongues projecting into the grooves of the sash frames. In witness that I claim the foregoing I have hereunto subscribed my name this 19th day of March, 1907.
' EDWARD H. JOHNSON.
G. E. HARPHAM, S. B. AUSTI