US2180780A

US2180780A - Window screen

Info

Publication number: US2180780A
Application number: US228858A
Authority: US
Inventors: Austin P Summers
Original assignee: CARL G EKHOLM
Current assignee: CARL G EKHOLM
Priority date: 1938-09-07
Filing date: 1938-09-07
Publication date: 1939-11-21
Anticipated expiration: 1956-11-21

Description

Nov. 21; 1939. A. P. SUMMERS WINDOW SCREEN Filed Sept. 7, 1938 INVEN 50mm W Patented Nov. 21, 1939 I UNITED STATES wmnow SCREEN Austin Summers; Spokane. Wash, assignor of one-half to Carl Q, Ekholm,vSpokane, Wash.

Application semester 7, 1938, Serial No."228,85

1f Claim. (ci. 15c s9)' I This invention relates to window screens and it is one object of the invention to provide screens carried by spring rollers so mounted at upper and lower, ends of a window frame that :the screens may be connected with the window sashes and unwound as the sashes are shifted to open position and rewoundupon' their rollers as the sashes are closed. It will thus be seen that the screens will be out of the way when the sashes are closed and moved into "position to prevent flies and. other insects entering a room when the sashes are moved to open position.

Another object of the invention is to so connect the lower screen with the lower window sash that it may be released therefrom when desired and thus permit raising of the lower sash without the screen obstructing the window I when this is desirable. 1

Another object of the invention is to provide roller screens which may be easily applied to :a window frame of conventional construction connected with sashes slidably mounted therein..

The invention is illustrated in the accompanying drawing, wherein:

Fig. 1 is a sectional perspective view showing roller screens of the improved construction applied to a window frame and connected with the window sashes. I I

Fig. 2 is a vertical sectional view taken at right angles to Fig. 1.

' Fig. 3 is a transverse sectional view on the line 33 of Fig. 2 and illustrating the manner in which the lower screen is detachably connected with the lower sash.

Fig. 4-. is a fragmentary sectional View taken on the line 44 of Fig. 2.

Fig. 5 is a fragmentary view illustrating a modified means for detachably connecting. the lower screen with the lower sash.

The window frame I to which the screens have been shown applied has its upper and

lower cross bars

2 and 3 provided with slots 4 and 5 and its side bars 6 provided with channels or tracks to slidably receive the upper and. lower sashes l and 8. A housing 9 is mounted upon the upper cross bar 2 in enclosing relation to the slot 4 and a similar housing In is secured against the under face of the lower cross bar 3 in enclosing relation to the slot 5. These housings may be secured in any manner desired and within the housings are mounted spring rollers H and I2 which are of the usual construction used for roller curtains and are provided with pivot pins and spring winding keys at their ends for winding their springs when the rollers are the end bar.

rotated in a direction to unwind, the sheets of wire screening l3 and M which are wound upon the rollers. A metal binding'l5. is provided for the outer endof the upper screening l3 and after this .end portion of the screening has been drawn out through the slot-4 of the upper cross; bar 2 it isfitted into the-groove l6 formed in the upper end bar ll of the sash flwhere it is firmly secured by rivets l8passed transversely through is shifted downwardly to open position the upper screen will be drawnv downwardly with it into position to prevent insects from passing inwardly through the window frameabove the lowered upper sash. Each of the sidebars 6 of the frame 1;, is formed with a grove l9 to receive the adjacent marginal portion ofthe screening l3 so that the insects cannot .enter between thesides of the frame and the side edges of the screening; and upon referring to Fig. 4, it will be seen that the grooves are substantially ,V-shapedJin cross section to provide restricted entrances through which the marginal portions of "the screening project; Lugs 20 are fixed-to marginal edge portionsof the screening in spaced relation to each other longitudinally thereof to prevent the mar- .which is welded or otherwise firmly secured to the screening, as shown in Fig. 3. This binding 2| projects upwardly from the lower cross bar 3 and is received in a groove 22 formed along the under face of the lower end bar 23 of the lower sash 8. The binding fits in the groove 22 with sufficient looseness ,to permit easy removal therefrom and inorder to releasably secure it in the groove, there have been provided fasteners 24 carried by and spaced from each other longitudinally of the end bar 23 of the lower sash. Each of the fasteners 24 is formed as shown in Fig. 3, and consists of a cup or socket 25 countersunk in the end bar 23 and carrying a pin 26 1order that the pin may be grasped and drawn outwardly from a position in which its inner end portion passes through an opening 29 formed Therefore, when the upper sash I Similar fasteners may be provided for securin the upper screen to the upper sash if desired.

Lugs 30 corresponding to the lugs 20 areiproevided along side edges of the lower screen to engage in grooves formedinthe sash and pre-" v vent this screen from being pressed through the window opening out of its proper position. When the lower screening is released from. thelower, sash, its binding must be prevented from passing entirelylthroughtheslot of the lower cross bar 3 of' the 'windowframe as otherwise it would be out of reach and could not be again connected with the lower sash. In order to do so, there has been providedla bracket 3| secured against the under face of the lower bar 3 and projecting slightlynacross the slot into position for its projecting end to engage-the lower edge of the binding and limit downwardly movement of said binding through the slot, as shown in Fig. 3. At its free end, the abutment bracket is provided with a depending'bill 32 which acts as a guide and permits the screening to move past the bracket without danger of being torn by catching against'the bracket. 7

Instead of connecting the lower screen with the lower sash by means of the fasteners 24, fastening means such as shown in Fig. 5 may be employed. In this figure, the lower end bar of the lower sash is formed'with' slots 33 which extend: longitudinally of the .end bar in the same locations as the-fasteners and these slots communicate with the :groove 1 22- into which the binding 2! of'the screening fits. Y, Slots .34 resemblingbayonetslots, are formed in the binding in positionto register with the slots 33 as the binding is passed upwardly into the groove and through the slotsgare mounted pins 35 having heads at theirouterendsso that they may be easily slid longitudinally of the slots 33 into and out of position to engage the slots 34 and securely but releasably hold the binding in the groove.

When this improved screen is in use, the upper and lower bars of the window frame are formed with slots and after the rollers carrying the screening sheets are mounted in the housings, these housings are secured to the bars in enclosing relation to the slots. The sheets of screening have their bound ends passed outwardly through the slots and secured in the grooves ,formed in the end bars of the upper and lower sashes and when the sashes are shifted to open .position the screening sheets will be drawn outwardly to block the window opening between the sashes and'ends of the window frame. When the sashes are slid to closed position, the spring rollers will rewind the screening and a clear view through the window panes will not be obstructed by screens. When it is desired to open the lower sash without withdrawing the screen, it is merely necessary to move the fasteners to a releasing position and the binding 2| will be released and the sashmay then be slid upwardly to open position without withdrawing the screen from the lower housing.

Having thus described the invention, what is claimed is:

A window frame having a cross bar formed with alongitudinal slot, a-sash slidable in said frame and having an end bar formed with a groove confrontingthe slot, a housing carried by said cross bar and enclosing the slot, a rewind roller in said housing, a sheet of screening wound upon said roller and projecting'out through the slot, a binding for the outer end of said-screening engaged insaid groove, said binding being formed with a longitudinal slot having a lateral entrance through the, outer side edge of the binding, the end bar'of said sash having a longitudinal slot therein registering with the slot of the binding when the binding is seated-within the groove, and'a fastener passing throughthe slot of the end bar and shiftable longitudinally therein into and out of position to engage through the slot of the binding and releasablysecure the binding in the groove of the end bar of the sash.

AUSTIN P. SUMMERS.