US1918660A - Window screen - Google Patents

Description

y 1933- R. A. NORQUIST El AL WINDOW SCREEN Original Filed Nov. 18, 1930 2 Sheets-Sheet l 1 1933- R. A. NORQUIST El AL 1,918,660

WINDOW SCREEN Original Filed Nov. 18, 1930 2 She t s 2 6' H- ilfargazls}, .u 7 25.05 Kar n i623 Patented July 18,1933- UNITED STATES PATENT OFFICE RALPH NORQUIST AND' GLENN H. NORQUIST, 0F JAMESTOWN, NEW YORK WINDOW SCREEN Application filed November 18, 1930, Serial No. 496,523. Renewed April 11, 1932.

which may be formed of metal and compete with the wooden frame screens nowvery gen erally used. A further object of the invention is to provide a metal screen frame which, although inexpensive, will be strong ,and durable and which may be very readily fitted together and applied to a window. Other objects of the invention will appear incidentally in the course of the following description, and the invention resides in certain novel features which will be hereinafter first fully described and then more particularly defined in the appended claims.

In the drawings:

Figure 1 is a sectional elevation of a window screen constructed according to our pres ent invention, 7

Fig. 2 is a transverse section on the lin 22 of Fig. 1,

Fig. 3 is a detail sectional perspective view more particularly illustrating themanner of mounting the screen-holding spring,

Figs. 4 and 5 are detail sections taken through the screen frame and showing slight modifications, I

Fig. 6 is a detail section takenon the line 6-6 of Fig. 5, and

Figs. 7 and 8 are details showing means for securing the screen stationarily in the window frame. j The screen embodying the present invention is mounted in and between tracks 1 and 2 which aresecured in the window frame in the'usual manner, the track 2 being deeper than the track 1, as shown clearly in Fig. 2, and both tracksbeing channel barsxseton end and running the height of the window frame or such portion of the same as may be desired. The screen frame comprises side and end stiles and rails which have mitered ends, as indicated atB, whereby they may fit together so that the completed frame will along one edge, 'said'edge being presented to the outer side of the window when the screen is in place. and the nettingfi-having its edge rolled over said flange, as clearly shown in Figs.'2, 3, 4 and 5. The side of the a channel 4 extending inwardly from the flange 5 is integral with an inner web 7 which forms the inner side of the channel and which is projected slightly beyond the side member 8 of thechannel to define a flange 9, said flange being produced by doubling the metal of, the frame section upon itself, as clearly shownin Figs. 2', 4 and 5. The web 8 of the frame section is parallel with the web extending from the'back web 7 to the flange 5 and, acting with said web, produces an open channel or chamber into which the edge of the netting may be fitted, as shown. A 5 key 10 is engaged in this channel 4 and binds against the web 8 and also serves to clamp the edge of the netting so that, when the net ting has been fitted to opposite side members of the frame, it will be drawn taut and main tained under tension. It may be noted that the key 10 is a channel bar adapted to fit snugly in the channel 4 and bind the edge of the screen fabric therein, the open sides of the twochannelsbeing opposed and the edges of the key being turned slightly inward toward each other in order to be more easily fitted in place and obtain a wider bearing on the web 7 and the edge of the screen. EX- tending from the outer edge of the web 8, so

the metal of the frame section is carried ments of any given window. A web 12 exi tends from the web 11 at a right angle thereto and is disposed parallel to the web 8 so as to form a channel therewith, the inner edge of the web 12 being turned toward the flange 9 to provide a cooperating flange 13, as shown. The flanges 9 and 13 converge inwardly toward the web 11 and thereby impart rigidity to the structure besides facilitating thefitting of a closure cap,.presently mentioned, there- I to'. Upon reference to Figs. 2, 3 and 4, it will v benoted that thecorners defined by the meeting of the webs 8, 11 and 12 are compressed to form ribs or beads 30 which resist opening or spreading of the corners and also minimize the area of the surface in contact with to bring the shank of the T-head within the the tracks so that frictional wear and resistance is reduced and the screen will slide'easily Whenadjustment thereof is desired.

As before stated, the ends of the several frame sections are mitered so that, when the sections are brought together in proper relation, they will form a rectangular screen. In order to reinforce the mitered joint and resist any tendency ofthe sections to separate at the joint, we provide a right angular coupling 14 which is a-channeled member or metal plate of U-shape cross section having its arms of such dimensions that they will fit snugly within the ends of the meeting frame sections, a'sclearly shown in Figs. 1 and 2. The side webs or flanges of this conpling will bind between the web 11 and the flanges 9 and 13 of the respective frame sections while the cross web of the coupling will bear against the crossweb 11 of the frame section thereby reinforcing the frame sections and imparting rigidity thereto so that they will effectually withstand the usage to which they are subjected. It may be noted at this point that the frame'constructed as thus deone side of the screen is first engaged within the track 2 and is then pressed deeply within the track so that the oppositeside of the frame will clear the side flanges of the track 1, whereupon the frame may be shiftedlater- 'ally so that its side will engage Within the track 1, as clearly shown in Fig. 2. T 0 maintam the screen in proper slidlng engagement w1th the tracks, a spring 16 1s mounted upon that side of the screen which plays within the track-2, the spring being compressed to yield to the movement of the screen when it is being engaged within the track '2 and then at once expanding after the screen has been alined properly with the track 1 and the pressure thereon released. The spring is of bowed form, as clearly shown in the drawings, and between its ends bears upon the bottom of the track 2 so that.

it; will frictionally hold the screen in any position inwhich it may be set. The web 12 of the screen frame which fits within the track 2 is provided with a slot 17 which extends longitudinally of the web and spaced from saidslot 17 is a second narrow slot 18 which is disposed transversely of the web. The spring 16 has one, end formed with a T-head 19 which is adapted to be engaged in the slot 17 to retain the spring upon the frame. For 7 this purpose, the spring is turned so that thehead of the T will extend longitudinally of-the slot 17 and may bepushed therethrougln'after which the spring is, turned through an arc of ninety degrees slot and the shoulders defined at the op posite ends of the shank will engage the opposite sides of the web 12 and thereby prevent withdrawal of the spring from the slot. The opposite end of the spring is i11- serted through the slot 18. and then bent downwardly to engage against the inner surface of the web 12, as shown at 20, the open side of the frame making the end of the spring accessible so that it may be easily bent to the desired degree. 'This formation effectually retains the spring in place so that it cannot be accidentally removed. It is a great source of annoyance, with window screens as now constructed, to find that the springs have become detached while the screens were in storage, necessitating the provision of new springs and. delay in putting the screens into use but these annoyances are entirely overcome by our present construction. a

When it is desired to have the screen frame present the appearance of a solid frame, a cap ,21 may be provided, said cap consisting .of a metal strip of suilicient length to extend from end to end of any frame section and having arcuate flanges 22 along its side edges whereby it may be pressed between the flanges 9 and 13 of any given frame section and spring into engagement therewith, as shown in Fig. 4. This cap will effectually close the open side of the screen frame and may be ornamented if desired so that it will add to the attractiveness of the screen when it is in use.

At the present time, casement windows are quite popular but difiiculty has been experienced in fitting screens to such windows owing to the presence of ornamental handles and other hardware upon the windows. This hardware projects from the Window to an appreciable degree and ordinary window screens are damaged by reason of the hardware bearing against the netting so as to break or distort the same and render it ineffective to repel insects. To permitour screen to be applied to casement windows,

we provide a supplemental frame 23 which is welded or riveted to the outer web 12 of eachframe section and extends entirely around the screen. This frame 23 projects inwardly from the screen frame and has its inner edge doubled upon itself, as shown at 24, to provide a re-entrant flange in which filling strips 25 may be seated and firmly secured at the corners of the supplemental frame. These filling'strips and the re-entrant flange reinforce and strengthen the inner edge of the supplemental frame and provide a smooth surface to fit against the casement window while the screen will be supported at asufficient distance from the window to accommodate all the hardwarethereon, as will be understood.

It a sliding screen is not desired, the edge webs 12 of the screen frame are formed with short narrow slots 31, as shown inrFigs. 7 and 8. Screws 32 having thin flat heads 33 are secured in the stiles of the window frame and the screen frame is engaged over the screws so that the slots 31 will clear the heads of the screws, whereupon the heads of the screws are turned ninety degrees to extend across the respective slots, as indicated by dotted lines in Fig. 8. Access to the screws for turning them is obtained through the open inner side of the screen frame and notched washers 34 may be fitted over the shanks of the screws between the screw heads and the screen frames to prevent accidental release. This manner of securing the screen in place is especially desirable when the embodiment shown in Fig. 5 is used.

Having thus described the invention, we claim:

1. A window screen frame consisting of metal sections each having an outer channel open at its inner side and an inner channel open at its outer side for receiving screen material, the outer channel having inwardly converging flanges along its open side and the ends of the frame sections being mitered, and right-angular channel couplings fitting snugly within the meeting ends of the outer channels of frame sections, said couplings having their open sides facing the open side of the channel in the frame section and having side portions bearing at their edges upon the flanges of the frame sections and a connecting web bearing against the connecting web of the channel frame section.

2. A metal window screen frame having channel side members, one of said members being provided in its outer edge portion with a longitudinal slot, and a transverse slot spaced from the longitudinal slot, and a bowed retaining leaf spring provided at one end with a T-head adapted to pass through the longitudinal slot and engage the screen frame at opposite sides of said slot and having its opposite end inserted through the transverse slot and formed into a hook engaging the inner side of the screen frame.

3. A window screen frame comprising channeled metallic stiles and rails having their inner sides open and provided with inwardly converging flanges along the edges of the said open side, means for clamping screen material on the stiles or rails, and a cap independent of the screen material clamping means having flanges along its sides adapted to extend through the open side of a stile or rail and yieldably engage the flanges thereon whereby to frictionally hold the cap in position closing the open side of said stile or rail.

4. A window screen frame of channel formation, and a supplemental frame secured to the sides of said screen frame and extending inwardly therefrom and having its inner edge doubled upon itself.

5. A window screen frame comprising channel sections, and a supplemental frame secured to the outer sides of each of said sections and extending entirely around the window frame and projecting inwardly therefrom, the inner edge of said supplemental frame being doubled upon itself to form a re-entrant flange, and filler strips 7 fitted in said flange at the corners of the supplemental frame.

6. A screen frame of channel formation having outwardly projecting traclcengaging beads at the corners of the channel whereby webs of the frame will be spaced from the webs of the track in which the frame is mounted.

GLENN H. NORQUIST. [1 s.] RALPH A. NORQUIST. [If s]

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