US1834513A - Roll screen - Google Patents

Description

Dec; 1, 1931. L. BREDIN 1,834,513

ROLL SCREEN I Filed Jan. 16, 1950 INVENTOR 1 YZ/ZS L. Bredz 71.

ATTORNEY Patented Dec. 1, 1931 U Dv TA S PATENT LEWIS L. BREDIN, F DETROITfMICHIGAN, ASSIGNOB 'I'O CHAMBE-RLIN METAL WEATHERSTRIIP 00., OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN i-nonr. scnnnn Application filed January lG, 1930. Serial No. (121,272.

This invention relates to roll screens and the object of the invention is to provide a roll screen mounted in a housing and provided with a means for closing the space be tween the housing and the screen therein to prevent insects from proceeding along the surface of the screen and thence into the screened room. 7 f

The invention in its broader aspect inay be accomplished in several different ways and by means of several different devices mounted between the housing and the screen, the'object being to prevent entrance of insects into a screened room by passing through the housing for the screen roller. l 7 Another object of the invention is to provide a roll screen having a housing in which a sealing member is supported, the said memher, being carried by the housing and'riding in contact with the screen at all times.

A further object of the invention is to provide a U channel carrying a felt strip, the U channel being adjustably mounted on the housing so as to bring the felt strip into conf tact with the screen to maintain the least possible pressure against the screen and yet effectively seal the opening, the felt strip, by exerting a brushing action on the wire screen cloth, tending to keep it clean. 7

These objects and the several novel features of the invention are hereinafter more fully described and claimed and the preferred form of construction by which these objects are attained is shown in the accompanying drawer ings in which Fig. 1 is a section through a roll screen embodying my invention.

Fig. 2 is a section taken on line 2-2 of Fig. 1.

Fig. 3 is a section taken on line 3-3 of Fig. 2. c

Fig. 4 is a section through an alternative form of the device.

Fig. 5 is a section taken on line 55 of Fig. 4.

Fig. 6 is a section through another alternative form of construction.

As shown in Fig. 1, the roll screen comprises a housing 1 having a screen slot 2 in the bottom through which the screen 3 is movable into or out of the housing. The

screen 3 is mounted on a'roller 4 rot'atab-ly mounted'in the housing land the screen at the edges is supported'in the channels 5 ex tending downwardly from the housing 1. The housing 1 is provided with brackets 6 7' at the ends by'which the housing is mounted in position and the housing is provided with ahorizontal bottom 7 extending between the brackets 6. The edge'of this bottom member 7 forms one edge of the slot 2 through which the screen extends.

The bottom member 7, as shown in Fig. 2,

is' provided with a'slot 8 at each end andfa "U shaped metal channel 9 is-positionedbeneath the member 7 and carriesia felt strip 10 therein. At each end the channel 9"is pro vided with a bolt 11, as shown in Fig.3, whichfexten'ds through the felt strip 10.

The ends of the bolts 11 are inserted through the slot 8, as shown in Figs. 2 and 3, and the nuts 12 are threaded thereon. By this arrangement the channel 9 and felt strip 10 are adjustable in relation to the face of the screen 3 so that the felt stripgca'n be moved toward or away from the screen to maintain the least possible pressure against the wire cloth and yet effectively seal the opening. The bolts 11 riding in the slots 8 also allow the felt strip to be easily adjusted to compensate for wear and'by exerting a brushing action on the wire cloth the felt stripgkeeps the wire clean and free from soot or dust. The brushing action of the felt strip also'brushes any insects off from the screen as it is rolled up and prevents the insects from entering the'housing 1 and proceeding around the screen roller'into the screened bottom edge of the vertical Wallis thus above the plane of the opposite edgeof the'slot;

formed by the lower wall. Any pressure of the-felt strip 10 against the screen therefore does not cause an engagement of the screen with the opposite edge of the. slot and therefore in applicants construction there is little 1;

in the corner of liability of injury to the screen member in operation thereof.

An alternative form of construction for the same purpose is shown in Figs. 4L and 5. In this form a roller 13 is rotatably mounted in the ends of the housing and extends over the edge of the slot 2 and into contact with the wire cloth 8. As the wire cloth is rolled or unrolled it passes over the roller 13 which allows free movement of the wire cloth thereover and at the same time seals the opening between the edge of the bottom member 7 and the face of the wire cloth. As the roller 13 will roll freely in either direction it does not interfere with movement of the wire cloth in either direction and at the same time prevents insects from passing through the housing into the screened room.

"Another alternative form of construction is shown in Fig. 6 in which a metal strip or partition 141C is hinged to the inside of the housing 1 at 15. This strip extends completely across the housing 1 and rests on the rolled'screen by gravity. As the screen is unrolled the metal strip or partition 14 swings downwardly by gravity and as the screen is rolled up the partition 14: is swung upwardly as the diameter of the screen roll increases. his partition 1% effectually preventsinsects from passing through the housing from one side of the screen to the other and thus keeps the insects out of the screened room.

From the foregoing description it becomes evident that the device is very simple and eflicient in operation, will not easily get out oforder, will keep the wire cloth clean, and provides a device which accomplishes the objects described;

Having thus fully described my invention, its utility and mode of operation, what I claim and desire to secure by Letters Patent of the United States is- 1. In a roll screen, a housing provided with a screen slot in the bottom and a screen roller rotatably mounted in the housing, a screen mounted on the screen roller and extending through the screen slot, a metal channel, a felt strip secured therein, a pair of bolts carried by the metal channel, the bottom of the housing being provided with a pair of bolt slots extending toward the screen slot and the said bolts being adjustable in the bolt slots to alwith the screen.

3. In a roll screen, a housing provided with screen slot into contact with the screen extending therethrough.

4. In a roll screen, a sheet metal housing provided with a screen slot in the bottom at one side of its longitudinal axis and a screen roller rotatably mounted on the axis or the housing; a screen mounted on the roller extending through the slot, a flexible strip secured to the bottom wall of the housing and adjustable to contact with the screen whereby the slot 011 one side of the screen is closed, the construction being such that the opposite edge of the screen slot is above the plane of the first named edge permitting some pres sure to be applied to the screen fabric by the flexible member without liability of causing engagement of the screen with the opposite edge of the slot.

5. In a roll screen, a sheet metal housing having a horizontal bottom wall and vertical side wall, the two said walls terminating short of the point where thetwo planes of the respective walls meet, a roll screen supported in the housing to pass through the said slot, and a flexible non-metallic strip adjustably secured to the said bottom wall to contact with the screen member below the lower edge of said vertical wall.

In testimony. whereof I sign this specification.

LEWIS L. BREDIN.

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