US1867391A - Roller screen - Google Patents

Description

ROLLER SCREEN Filed March 5. 1929 2 sheets-sheet 1 I N VEN TOR.

C.TRAUT ROLLER SCREEN July 12, 1932.

Filed March 5, 1929 2 SheetsfSheet 2 ATTORNEY.

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Patented July 12, 1932 UNITED STATESv PATEN' isaiasi CLIFFORD TRA'UT, OF NEWPORT,` KENTUCKY, .ASSIGNOR TO THE HIGGIN'MANUFACTUR- ING COMPANY, OF NEWPORT, .'KIEN'TU'CIKY',` A CORPORATION 0F WEST VIRGINIA Zf;'\,OLLZEIIEtA Application led March 5,

My invention relates to roller screens of the type which are set into a window with separate guide channels for the screen wire.

`In those structures for the purpose of proi viding roller screens with which I am familiar, there is usually some provision for freedom of play of the side guides in which the screen endfis mounted, or some play in the guide shoes on the end bar, which are held Within the guides. This is the practice because of requirements that the screen retain its freedom of movement, in spite of inac-` curacies of original structure,or inaccuracies arising because of changes arising after the screen has been installed. r

One of the objectsof my present invention is to provide a side guide structure and a type of guide shoe to be retained thereby, wherein the guide shoe has ,freedom of play in its `engagement withthe guide, and in which the shoe engagement is such that this does not result in making it possible to jam the screen by moving the end bar to a cocked position in the frame of thewindow.

Another object of my Ainvention isrto provide a. type of guide shoe which will retain a considerable width of the wire lof the screen, so that when the guide shoesare located in the side guides, there is a consider-4 able portion of the wire, held within the guides by the shoes. The result of this ar.- rangement is that the screenwire will'be free to move in and out of the guides under` wind pressure or accidental blows,'but the limit of any expected movement of this type will never be enough to force the screen wire itself entirely out of the guides. a m

I accomplish my objects by that certain construction and arrangement Vof parts to be hereinafter more specifically pointed out and` claimed.

In the drawings Figure 1 is an elevation partly in section and centrally broken away showing a com- 5 plete installation according to the preferred form of my invention.

Figure 2 is a view taken on the line2-2 of Fig. 1.

Figure 3 is an end elevation ofthe roller box. V

` depression orl channel in the roller.

SCREEN 1929. serial No. 344,470.

of one ofthe guide perspective of a side guide unrolled and drawn down will cover the opening of the frame. I

The box is formed of a piece of sheet metal formed into a hollow rectangular structure 4, with a lengthwise narrow opening 5, atV

its lower outer angle.v In the lower wall of the box, close .to the end and to the opening 5; ears`6 are cut out and turned down so as to be engaged by the side guides as will be noted. The ends of the box are formed of flanged plates 7, witha l'central dished portion 7a, having a central hole or orifice 7b.', Y

\ The ends of the rectangular structure are provided with tongues 9, which extend through slots 10 in the end plates, 4and in assembling the structure the end plates are set with their flanges over the ends of they box and with the tongues extending through the slots and turned over. (Figures 2 and 3).

The screen 11, is wound upon a roller 11a of.

cylindrical shape, having plates 12 near its ends, which have central holes to support a shaft `13. The shaft is slotted at one endas at 14, and squared atV the other as at 15. A

spring 16 is wound around the shaft and en` gaged in the slotted `end. It is also engaged in a disc 17, which slides along the shaft and hasV a notch therein to engage a lengthv'iee e spring is thus secured to the shaft and to Ya member which slidably engages vthe interior ofthe roller, so that by holding the shaft in position and revolving the roller, the spring will be compressed, as in anyshade roller construction. l

I provide, for supporting the shaft in one of the end pieces, a thimble 19, having spaced flanges 20. The thimble has a square slot in it as at 21, to engage the squared end of the shaft.

In assembling the device, the roller, spring, and shaft are assembled and set into the boX, whereupon the end plates are set in place. The winding and latehing thimble is thrust through the hole in the one end plate, so as to engage the squared end of the shaft and so that its flanges lie in the dished portion of the end plate. The other end of the shaft, where it extends through the other end plate inserted through a thiinble 19a welded into the end plate and the slotted end of the shaft is fitted with a washer 22, (Fig. 6) which has integral tongues 23, that engage the slot of the shaft.` The washer is brought down against the base ofthe tubular thimble and the tips of the shaft pinched together slightly, thus holding the shaft against4 withdrawal.

rIhe end of the shaft which protrudes withinthe latcliing thimble is then engaged by a socket wrench and revolved so as to corn,-V

press the spring. When this operation takes place the flanges of the thimble willrpass freely over the tongues of the end plate. vWhen the spring has been tightened however, the flanges of the tliimble will catch under the tongues, thus locking the shaft against decompression movement.

The roller spring structure above described is shown and claimed in my copending application for Letters Patent Serial No.

Y 315,694, led October 29,1928.' An analogous roller shaft locking structure is shown in Letters Patent No. 1,766,746 issued June 24, 1930, to Tilliain F. Heclnnan.

In order to provide for side guides, and

to engage and move the screen across the' window opening, ,I provide the screen itself with an end bar, and mount on the window fi'ame guides which fio-operate with shoes on the end bar.

rI-he guides are formed of one or more pieces of metalhaving an attaching flange 24, and at right angles thereto spacedv side walls 25, 2'5, with the ends of the'` walls turnedin to form a pair ofspaced guide walls 26, 26,

spaced from the side walls 25. In other forms the flange 24, may be an extension of one of the side walls, instead of at right angles.

The guides,y one on each side of the window, are screwed against the side stiles of the frame, so that presented at the upper ends of the guides are the flanges or plates 27, upon which the roller box rests. These plates eX-.

tend. across the space between the side walls and the attaching flange, and have a slot 28 in them. The slots 23A receive lips 6 turned down froni the forward corners of the box, thereby exactly locatingthe boxl with relation to the guides, sotliat the opening between the guide walls of the guides registers with the' mouth of the boX. The plates 27 may be integral or welded to the guides.

The bottom end of the screen is equipped with an end bar, which may be of any type. I have shown a structure formed out of sheet metal having a base flange 30, spaced side walls 31, and a central depressed portion 32, terminating in a tubular channel. The lower end of thev screen, thickened `with a wire or rod, can be fed into engagement with the bar by inserting the thickened end into the channel 32, and drawing the bar across the wire.

Into the open ends of the end bar, or secured in another desired way are the guide shoes. These are shown as having spaced arms 33, for inserting into the guide bar,- where they are secured fast in place, as with screws, or by welding. Vhen made of one piece of metal the arms 33 are connected together at the-bottom, y

the arms are web portions Extending from 33a, which are close enough together to passthrough the space between the guide Wallsof the side guide bars. then tuined bacl in the form of flanges 34,

such that the flanges will hook over and ride upon the inner faces of the'guide walls of the side guides, as shown. l

The upper edges of the guide shoes struc-A ture are open, and the screen wire isv'longer than the endr bar and'extends out laterally,

being held within'the guide shoes. T o the end of securing the wire in place in the guidey shoes, ears 35, 35, are turned up, and'screws or the like are passed through the ears and through the wire. These ears are near enough to the Iouter edges ofI the shoesI asf not to interfere witlrthe inner edges ofthe tips of the latch bars are bevelled lar point, and formed in the edges ofthe portions 33 ofthe shoes, where .they merge with the portionsl When insta-lling the screen, the workman with a file makes notches 39 at the proper places in the two side guides, :and the latch bolts engage the-se notches. This is a very` practical way of avoiding any previous ad-` liustment of the length of the side guides, and is possible because Iof the shape'of the side guides, andthe nature of the shoes.v

With springs 40 urging the latch bolts outwardly (partially shown) the bolts will act` as a brake to prevent too rapid movement ofthe screen in vthe guides.

It will be noted that the proportionate size of the several shoes and guide parts are such,

that the Shoes when in place in the guides The web portions are bolts 36,

They arev Xtend out through slots 33 in the endfbar. The 5 to an angu lieV in holes 38,fwhich are:

ion

will have some play, endwise of the end bar of the screen, and crosswise of the window frame.

However, due to the four surfaces of engagement between the parts, and the curved shape of the inner ends of the shoes, there is no danger of cocking the end bar of the machine during the operation of the screen and thus wedging it into a jammed position.

The play is not enough to permit the shoes to become jammed, and yet is enough to permit of sufficient lateral play to take up variations due to expansion and contraction, anderrors which might be present in the window frame in which the screen is arranged.

A description of the operation of the screen will not be required. When the shoes are inserted in the guides, and the guides set into place, and connected by the end bar, the screen will lie within the side guides, and when fully withdrawn from the boX will entirely close the window.

ind pressure will not force the screen out of the guides, since the structure is such that a considerable width of screen lies Within the guides.

Having thus described my invention, what I claim as new and desire to secure by Letters Pat-ent is l. In a roller screen structure, having a screen and means for movably supporting said screen at one end of a window frame; an end bar and side guides in the frame in which the screen and end bar are engaged, said guides having a lengthwise hollow portion and a lengthwise slot, with the walls defining said slot projecting inwardly into the hollow portion, members on said end bar which enter the slots of the guides, and have tongues engaging the out-er faces of the inwardly projecting slot defining walls.

2. In a roller screen structure, having a screen and means for movably supporting said screen at one end of a window frame; an endV bar and side guides in the frame in which the screen and end bar are engaged, said guides having a lengthwise hollow portion and a lengthwise slot, with the walls defining said slot projecting inwardly into the hollow portion, members on said end bar which enter the slots of the guides, and have tongues engaging the outer faces of the inwardly projecting slot defining walls, said members having such substantial width lengthwise of the guides as to be non-binding in their travel along the guides.

3. In a roller screen structure, having a screen and means for movably supporting said screen at one end of a window frame; an end bar and side guides in the frame in which the screen and end bar are engaged, said guides having a lengthwise hollow portion and a lengthwise slot, with the walls deiining said slot projecting inwardly into the hollow portion, members on said end bar said guides having a lengthwise hollow which the screen and end barv are engaged,

said guides having a lengthwise hollowpor-y tion anda-lengthwise slot, 'with the walls defining said slot projecting inwardly into the hollow` portion, members on said end bar which enter the slots of the guides, and have tongues engaging the outer faces of the inwardly projecting slot defining walls, said hollow portion of the guides, and end bar and members being so relatively proportioned that the members have play transverse the lengthwise direction of the guides, the members on the end bar being rigidly associated therewith. Y

5. In a roller screen structure, having a screen and means for movably supporting said screen at one end of a window frame; an end bar and side guides in the frame in which the screen and end bar are engaged,

portion and a lengthwise slot, with the walls delining said slot projecting inwardly into the hollow portion, members on said end bar which enter the slots of the guides, and have tongues engaging the outer faces of the inwardly projecting slot defining walls, said hollow portion of the guides, and end bar and members being so relatively proportioned that the members have play transverse the lengthwise direction of the guides in the plane of the window frame, and have a close sliding fit transverse the lengthwise direction of the guides at right angles to the plane of the window frame,

6. A side guide and end bar arrangement for screens comprising in combination side guides having lengthwise openings dened by inwardly projecting walls, and an end bar having members which pass into the openings and engage the inwardly projecting walls, the members and guides being so relatively proportioned that the members have a freedom of motion between said walls, and their engagement with the inner walls of the openings.

7. A side guide and end bar arrangement for screens comprising in combination side guides having lengthwise openings defined by inwardly projecting walls, and an end bar, having members which pass into the openings and engage the inwardly projecting walls, the members and guides being so relatively proportioned that the members have a freedom of motion between said walls,

and their engagement with thel inner Walls of the Openings, spring plungers in the vend bar, Said plungers Serving as 1atchesthere\ for, and arranged to engage the guides dur--y ing'the movement of the end bar,

8.1m a Window screen device includin in combination with a Wire fabric, an end' bar with which said Wire fabric is engaged, and shoes secured to the end bar, said :shoesl having spacedmembers between which the fabric is engaged, ears 0n said members be. tween which the fabric is secured, and re.- turn-bent more Widely spaced members serving t0 engage Within suitable iside guide members.

CLIFFORD TRAUT.v

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