US2889876A - Screen mounting - Google Patents

Description

June 9, 1959 H. M. LOCKHART 2,889,376

SCREEN MOUNTING Filed March 15, 1956 2 Sheets-Sheet 1 INVENTOR. HUGHBERT M. LOCKHART June 9, 1959 H. M. LOCKHART 2,839,876

SCREEN MOUNTING Filed March 15, 1956 2 Sheets-Sheet z INVENTOR.

HUGHBER T M. LOCKHART SCREEN MOUNTING Hughbert M. Lockhart, Southfield Township, Wayne County, Mich.

Application March 15, 1956, Serial No. 571,750

2 Claims. (Cl. 160328) My invention relates to a new and useful improvement in a screen mounting for mounting window screens in position over a window opening. The invention relates to that type of window screen in which no screen frame is used but in which the screen element itself is secured over the window opening with the edges of the screen element loose and free. In this type of screen structure, the screen element at opposite edges is provided with a rigid rail or bar. One of these rails or bars is secured to the upper side of the window opening and the other rail or bar is secured to the lower side of the window opening. Construction is such that the screen is held taut between these two bars so that the face of the screen, at the side edges, is held in engagement with the face of the window frame. Experience has shown that in this type of construction, the screen element frequently becomes bulged so that the side edges thereof do not lie snug against the faces of the sides of the window frame. The result is that the screen is not insect tight and its functioning is considerably impaired.

It is an object of the present invention to provide a mounting of such a screen element so constructed that the unreinforced edges of the screen will always bear against the face of the window frame snugly throughout the length of the edges of the screen element.

Another object of the invention is the provision of a mounting of a screen element so constructed and arranged that an outward thrust delivered to the screen element will be compensated for by a yielding of the mounting of one of the bars on the window frame.

Another object of the invention is the provision of a screen mounting of this type which may be easily and quickly installed without requiring the use of templates or other measuring instruments.

Another object of the invention is the provision of a reinforcing bar in which the upper edge of the screen may be easily and quickly fastened in position and in which the attaching members which serve to attach the bar to the window frame may be easily and quickly installed and moved to various positions lengthwise of the attaching bar.

Another object of the invention is the provision in a screen mounting of this type whereby the mounting of the screen automatically adjusts the screen to window openings which are out-of-square.

Other objects will appear hereinafter.

It is recognized that various modifications and changes may be made in the detail of the structure illustrated without departing from the invention and it is intended that the present disclosure shall be considered to be but the preferred embodiment.

Forming a part of this application are drawings in which:

Fig. 1 is an elevational view of the screen from the inside.

Fig. 2 is a view similar to Fig. 1, with the cam locks in releasing position.

Fig. 3 is a sectional view taken on line 3--3 of Fig. 1.

Fig. 4 is a perspective view of the screen element.

Fig. 5 is a fragmentary side elevational view of the screen element at the upper end thereof.

Fig. 6 is a plan view of an attaching clip.

Fig. 7 is a fragmentary side elevational view of the screen element at the lower end thereof.

Fig. 8 is an elevational view of a clip used in the invention.

Fig. 9 is an elevational view of a cam used in the invention.

Fig. 10 is an elevational view such as shown in Fig. 9 taken at right angles to Fig. 9.

An attaching bar 7 has a doubled over lower edge 8 to provide a channel in which the upper edge 9 of the screen element 10 engages, this particular edge being doubled over to lie in the channel 8. A lower attaching member 11 is doubled over at its upper edge to provide a channel 12 in which the doubled over lower edge 13 of the screen engages. The lower edge of the attaching bar 11 is doubled over to provide a U-shaped structure having one of the sides 14 thereof extended upwardly. Mounted on each of the side rails 15 and 16 of the window frame is a rockable cam 17 having a nose 18.

Slideable on the upper edge of the wall 14 is an engagement plate 19 having the upwardly directed tongue 29 connected by the curvilinear portion 21 to a channel or groove 22. An engagement plate is doubled over at one edge to provide a U-shaped structure 23 which embraces the wall 14. These engagement plates may be slid longitudinally of the lower bar 11. The bar 7 is doubled over at its upper edge to provide a Ushaped structure, one of the walls23 of which faces downwardly. An attachment clip is provided which is formed from a resilient metal and preferably a wire. It is formed U- shaped in structure with the oppositely disposed legs 24 and 25 and the bight 26. This bight is at its center provided with the inwardly bent U-shaped structure 27 to provide a channel 28 bending outwardly from the bight. The legs 24 and 25 are provided with the angularly turned upwardly extending portions 29. These angularly extending portions 29 may be termed attaching legs, and they engage in the channel 30 formed in the upper bar 7. As shown in Fig. 4 the opposite ends of the bight are inclined downwardly toward each other and terminate in the U-shaped structure 27 so that this U-shaped structure 27 lies below the plane in which the legs 24- and 25 lie as clearly shown in Fig. 5.

After the cam members have been mounted on the window frame in the manner indicated, the lower edge of the screen is secured to the bar 11 as previously de scribed, and the upper edge of the screen is secured to the bar 7 as previously described. The operator installing the mechanism then secures to the upper rail 31 of the window opening an attaching screw 32, leaving the head thereof spaced away from the face of the window frame rail 31. It is customary to provide on a screen a plurality of these attaching clips. The operator then inserts into the channel 30 the legs 29 of the attaching clip with the bight portions 26 inclined downwardly and converging toward the center. These clips may be moved longitudinally of the bar 7 so that it is not necessary to locate the screws at any definite position on the rail of the window frame. The attaching clip is then brought into position in which the U-shaped portion 27 embraces the screw, whereupon the screw may be threaded in tightly so that the head thereof engages the portion 27. The lower end of the screen is then set into position so that the cams when moved to operative position as shown in Fig. 1 will press against the presser or engagement plate 19, which will exert a downward pull on the bar 11 to which the lower edge of the screen element is attached. This will effect a stretching of the screen into taut condition. This screen element overlies at its side edges the side rails 33 of the window frame so that the face of the screen element thus bears against the outer face of the window frame rails. Due to the drawing of the screen element taut by means of the cam elements, this engagement is a firm engagement and sufficient to prevent insects from entering between the side edges of the screen and the face of the window frame rail. As the cam members are moved into operative position, there is a flexing of the attaching clip bight 26, this flexing tending to bend the portions of the bight on opposite sides of the screw downwardly. Should an outward thrust be delivered to the screen element and should the screen element not be permitted to adjust itself in response to the thrust, a bulge will take place in this screen element with the result that the frameless edges thereof will not lie flat against the side rails of the window frame. With the present invention, a bulging of the screen cannot be effected. This is due to the fact that when an outward thrust is delivered to the screen the clips, which are held in position by the screws, will yield or spring. Consequently, there is an automatic adjustment to this outward thrust and no bulge will be formed in the screen. When the outward thrust is relieved these attaching clips, in response to their inherent resiliency, will spring back to normal position and thus retain the screen in the position in which it was installed with the frameless edges lying in snug engagement with the face of the rails of the window frame.

As the cams are moved downwardly, they will engage the portion 21 and as the movement is completed, the cam elements will be engaged in the groove 22 holding the lower edge of the screen in proper position.

What I claim is:

1. A screen mounting for mounting a frameless screen over a window opening formed in a window frame, comprising: a flexible frameless screen member; a rigid reinforcing bar mounted on one end of said screen member and having a channel formed therein; a plurality of attachment clips slidably mounted in said channel and each comprising a pair of legs engaging in said channel; a U-shaped member projecting outwardly from one end of said legs and having an inwardly extending loop on one side and pressed inwardly from the bight of said U-shaped member; screws mounted in the upper side of said window frame and depending therefrom for reception of said loop for securing said attachment clip to said frame, said attachment clip being resilient; a rigid reinforcing bar mounted on the opposite end of said screen member and having a channel; a plurality of clips slidably mounted in said last named channel; a tongue projecting outwardly from each of said last named clips; and a cam member mounted on said frame and rockable for engaging said tongue and pressing the same in one direction for stretching said screen member into taut condition.

2. A screen mounting for mounting a frameless screen over a window opening formed in a window frame, comprising: a flexible frameless screen member; a rigid reinforcing bar mounted on one end of said screen member and having a channel formed therein; a plurality of attachment clips slidably mounted in said channel and each comprising a pair of legs engaging in said channel, and a U-shaped member projecting outwardly from said legs and having an inwardly extending loop in the bight thereof and pressed inwardly from the bight; screws mounted in one side of said window frame and projecting outwardly therefrom for reception of said loop for securing said attachment member to said frame, said attachment member being resilient, the opposite ends of the bight of said attachment member at the opposite sides of said loop being inclined inwardly toward each other so that said bight lies in a plane non-perpendicular to the plane of said legs; a rigid reinforcing bar mounted on the opposite end of said screen member; and a cam member mounted on said frame and lockable for directing the thrust against said second named reinforcing bar for pressing the same in one direction for stretching said screen into taut condition and flexing said attachment clips and placing the same under tension.

References (Iited in the file of this patent UNITED STATES PATENTS 1,120,333 Pinkham Dec. 8, 1914 2,519,998 Burns Aug. 22, 1950 2,583,627 Burns Jan. 29, 1952 2,759,536 Jensen Aug. 21, 1956

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