US1491514A - Window ventilator - Google Patents

Description

April 22 1924. I 1,491,514

E. CAVE WINDOW VENTILATOR Filed Feb. 16. 1923 INVENTOE Aware [a w:

Patented Apr. 22, 1924.,

UNETED STATES enten ELMORE GAVE, OF ST. LOUIS, MISSOURI.

WINDOW VENTILATOB.

Application filed February 16, 1923. Serial No. 619,445.

To all whom it may concern:

Be it known that LELMORE GAVE, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Window Ventilators, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to made and use the same.

This invention relates to window ventilators of the type that are adapted to be arranged in operative position in a window opening between the horizontal rail of one sash of the window and a horizontal portion of the window frame.

One object of my invention is to provide an inexpensive ventilator of the kind referred to that can be adjusted easily to adapt it to windows of different widths and which is so constructed that it will efiectively ventilate a room without liabilityof rain beating into the room.

Another object is to provide a lightweight Window ventilator that, can be shipped in knock-down form in a small container from the manufacturer of the ventilator.

And still another object is to provide a window ventilator that is equipped with an air filtering device consisting of a piece of fabric, which is combined with the ventilator in such a manner that it can be easily disconnected fromsame when it becomes necessary to clean or wash the fabric to remove the particles of dust and dirt which the fabric collects from the air that circulates through the openings in the ventilator. Other objects and desirable features of my invention will be hereinafter pointed out.

Figure 1 of the drawings is an elevational view, looking at the inside of a window equipped with a ventilator constructed in accordance with my invention.

Figure 1 is a perspective view, illustrating one end portion of the ventilator ar ranged in operative position in the sash guide of the window frame;

Figure 2 is an edge view of the ventilator,

taken on the section line 2-2 of Figure 1,

looking in the direction indicated by the arrows. I

Figure 3 is a vertical sectional view, taken onthe line 33 of Figure 1 and Figure 4 is arear elevational view of .a

window ventilator constructed in accordance with. my invention and composed of three sections. Referring to the drawings which illustrate the preferred form of my invention, A and B designate the top and bottom sash, respectively, of a window and C designates the frame of the window in which said. sash are slidingly mounted,the side members of said frame having vertically-disposed guides that receive the side rails of the window sash, as shown in Figure 1*. My improved ventilator is of the type that is adapted to be arranged in the window opening between the horizontal rail of one window sash and a horizontal portion of the window frame when said sash is partly open. The ventilator herein illustrated is of such construction that it is intended to be arranged between the lower rail lof the bottom sash Band the sill 2 of the window frame, with the'end portionsof said ventilator projecting into the vertical guides in the side members of the window frameC that receive the bottom sash, as shown in Figures 1, 1 and 3.

Said ventilator is composed of a plurality of sections D' constructed preferably of sheet metal and combined in such a way that they can be adjusted longitudinally relatively to each other to decrease or increase the length of' the ventilator, thereby enabling the ventilator to be used in windows of different widths. It is immaterial how manysections the ventilator comprises, but it will usually be composed of two sections, as shown in Figure 1, or three sections, as shownin Figure 4, combined in such 'a' way that they are capable of being adjusted longitudinally relatively to eachother and are capable of being taken apart easily-so as to permit the ventilator to' be shipped in knock-down form 'andpacked in a relatively, small container of substantially the same length as one of thesections of the ventilator. When the ventilator is composed of two sections each of said sections will. comprise a vertically-disposed web 3 provided at its top and bottom edges and at its outer end with integral, laterallybent portions' that form a rim which extends around .three sides of said'section,

so that whenthe two sections are assembled the ventilator will have a practically continsm r fe heeeeeaw i al edge. The sections of the ventilator are so proportioned and designed tha-ti the inner end portion of one section can bertelescoped into'the inner end portion of the adjacent section, thereby enabling the length of the ventilator to be varied easily byadjusting one section longitudinally relatively to the other; Various means can be used for concan "be doubledover at Wander, asshown in'l gure 1 so'asto-form grooves m which necting the sectio-nstogether, but I prefer to provide the web 3 of one section, for example, the right hand section, withheaded studs and provide the vertical'web of the other 7 section with horizontally-disposed slots G thrOugh which the shanks of said studs if project, said slots having enlarged portions 6 that are largejenough to receive the heads of the studs5, thereby-permitting the sections to beassembled and disassembled easily-bymoving them longitudinally into such a posit-ion that the heads of the the flange 7 and the bottom rim portion A 'locked with each other. In assembling the of the left hand sectioncan slide, thereby causing the flanges ,7 and the bottomrim portions 4: of the two sections to be inter sections of the ventilator the inner end por= tion of the left hand section is inserted in the inner end portionof'the righthanda section in such a way that the verticallydisposed flange 7 and bottom rimportions 4 on said left hand section will be'positioned in the grooves 'formefdhy the bent over portion 7* and 4 of the right hand vsection. The webs of the twosections are then spread v apart sufficiently to permiti the :web :of the left-hand section to;slide over thestirds '5 until the enlargedportions 6 'ofLthe-slots 6 in the left hand resect-ionsxcome into ...alignment with the headson said,studs, thusper- 'mitting thewebs-to-be forcedtogether, so as to cause the studs onthe-right hand section "to enter the slots provided fore-same in the is -moved longitudinal-ly of the nother section so asto; arrange.theshanlrset-said studs left hand section. Thereafter, lone section 'i n the slots The web 3 of each section of the ventilator studs 5 on one section are in alignment with the'enlarged port1ons6 of the;slots 6.1n the preferably by louvres, each or" which comprises a horizontally-disposed slot or opening 8 and an integral shield 9 at the upper side of said slot, as shown in Figure 3,that prevents rain from beating inwardly through the slot, the louvres being formed byxslitting the web of the section and then bending portions'of said web outwardly. "While I prefer to provide each section of the ;ventilator with a plurality of horizontally-disposed louvres, it will, of course, be understood that it is immaterial, so far as my invention is concerned, how the ventilating openings are formed or how they are arranged, so long as they are of such design that rain cannot beat inwardly through the -:ventilat01.

In order to prevent dust, dirt and the:lil;e from entering the room through the ventilating openings inthe ventilator, the ventilator equipped with an airfiltering device, formed preferably by a piece of fabric E that stretched over the inner side of the ventilator, as shown in Figures 3 and 4, and detachably connected to the ventilator in such away that it can beremoved easily when it becomes necessary to clean said fabric. In the form of my invention herein illustrated the piece of fabric E is provided at its ends with strings or tying devices 10 that are adapted to be inserted through holes 11 in the end portions of-the ventilator, for example,-holes in the upwardlyprojecting fianges 7 of thesections Dand holes in the rim portions lofsaid sections that bear a gainst the sill 2 of the'window frame. 7 7 W In: arranging the ventilator in operative position the bottom-sash B of the window is raised, as shown in Figure 1, and the 'ventilatoris then positioned between said sash and the sill 2 of the window frame.

One of the sections D of the ventilator is then moved longitudinally relatively to the other section, so as to causetheend portions of the ventilator to be positioned in the vertical guides in the side members of the window frame C that receive the side rails or" the bottom sash B, and said bottom sash is then moved downwardly so as to securely clamp the ventilatorin operative position, with the upwardlyeprojecting flanges 7 at the top edgeof the ventilator projecting upwardly cover the inner side of the lower ,rail of the bottom-sash. 'In order to permit the bottom sash B to 'be moved downwardly into engagement with the rim portions 4 at the top edge of the ventilator when the end portions of the ventilator are positionediin the .sashguides ,inthewindow rame C, the vertical flanges 7 at the top edgeof the ventilator are cut away at the endsof the ventilator as shown in Figure 2, or are madefa trifle shorter than the' is provided with ventilatingopenings'formed sections D of the'ventilat-or.

A ventilator of the construction above described will not rattle when it is arranged in operative position in a window opening, due to the fact .that it is clamped securely between the bottom sash and the sill of the window frame, with the end portions of the ventilator positioned in the sash guides in the window frame, the vertically-disposed sash engaging portions 7 at the top edge of the ventilator assisting in maintaining the ventilator in position and also forming a fairly tight joint between the ventilator and the portion of the bottom sash that bears upon same. Such 'a ventilator is easy to install or remove from a window opening; it can be adjusted easily to adapt it to windows of different width; it is in expensive to manufacture, as it is constructed from sheet metal sections that can be formed by a simple stamping operation, and it is of light-weight and such design that it can be taken apart easily and shipped in knock-down form in a small container of substantially the same length as one section of the ventilator. In addition to the desirable characteristics above pointed out it is equipped with an air filtering device that effectively separates or removes particles of dust and dirt in the air which circulates through the ventilator which filtering device is combined with the ventilator in such a way that it can be removed easily and cleaned, thereby making the ventilator particularly adapted for household use.

Having thus described my invention, what I claim as new and desire to secure by Letly of a window opening between the bottom sash and a horizontally-disposed portion of the window frame with its end portions positioned in the sash guides in said frame, said member being composed of a plurality of sections that can be adjusted relatively to each other and each of which is formed from a sheet metal plate provided with slots and with integral shields arranged in proximity to said slots so as to prevent rain from beating inwardly through the same, laterally projecting flanges on said plates that co-operate with each other to form a. rim at the top, bottom and ends of said member, a vertically-disposed flange on the top portion of said rim that laps over the front face of the bottom rail of the sash and terminating short of the ends of said member, doubled over portions on one of said sections arranged in telescopic relation with co-operating portions on the other section, and slot and pin connections between said sections.

ELMORE GAVE.

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