US2063546A

US2063546A - Window ventilator

Info

Publication number: US2063546A
Application number: US752499A
Authority: US
Inventors: Jr Edwin W Friedholdt
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-11-10
Filing date: 1934-11-10
Publication date: 1936-12-08
Anticipated expiration: 1953-12-08

Description

Dec. 8, 1936. E. w. FRIEDHOLDT, JR 2,

WINDOW VENTILATOR Filed Nov. 10, 1954 2 Shee ts-Sheet 2 Patented Dec. 8, 1936 UNITED STATES PATENT OFFICE.

I Q WINDdVZ VINTIIIA won I Edwin W. Friedholdt, In, Chicago, Ill. 99 Application No. 752,

Myinvention relates to the windows of dwellings, factories and other buildings, and more particularly to ventilators therefor, and my main object is to provide a ventilator which is readily .5 applicable to any window installation whereby to permanently convert the same into-a ventilated window.

A further object of the invention is to provide a ventilator which permits various adjust- 10 ments and degrees of ventilation while making the window safe against unauthorized entrance,

' or burglar proof in the popular sense.

A still further object of the invention is to design. the novel ventilator with means to fully 16 seal it against drafts or seepage of air when it is closed, that it may serve as a perfect closure when it is not in use as a ventilator.

Another object of the invention is to so construct and apply the novel ventilator that it 20 does not weaken but rather remforces the window.

An additional object of the invention is "to construct the novel ventilator along lines of simplicity and rigidity, whereby to permit it to be manufactured inexpensively and to serve effl- 24 ciently over along period. I

With thevaboye objects in view, and any others which may suggest themselves from the description to follow, -a better understandingof the invention may be had by referring to the accompanying drawings, in which- Figure 1 is an elevation of a typical window equipped with the novel ventilator as seen from without;

Figure 2 is a similar view, asseen" from within; Figure 3 is an enlarged vertical section of Figure 2 to the extent covered'by the ventilator, showing the latter closed and omitting a fly screen attachment;

Figure. 4 is a view similar to Figure 3, showing the ventilator open;

Figure 5. is a section on the line 5-5 of Figure 3;

- Figure 6 is an elevation of a double type of 45 window to which ventilator units of the character considered are applied.

Figure '7 is an enlarged sectional view taken substantially on the line 'Il of Figure 2.

As mentioned, the novel ventilator is in- 50 tended to be installed as a unit in a window. Thus, it is applicable in the lower part of the inner sash by removing a part of the glass and installing the ventilator unit as a substitute; or the entire pane of the sash may be removed 55 and another one containing the ventilator unit substituted, rendering the ventilator an easy replacement for any window sash.

Referring specifically to the drawings, a typ ical window sash is shown in Figures 1 to 4, the upper and lower rails thereof being indicated .3- at I0 and II, while the stiles are indicated at l2. The preferred ventilator installation is of the double visor type and built in a rectangular frame having upper and lower bars l3 and side pieces 14 connecting the bars. These parts are made of flat material, and the spacing of the side pieces I4 is such as to leave some room between the sides of the ventilator and the sash stiles I2 for the fitting of glass inserts l5. The ventilator is also preferably spaced somewhat 15 from the lower sash rail I I, to permit the fitting of a bottom glass insert it between the ventilator and the rail. While the ventilator could extend fully across the sash and to the bottom rail thereof, I prefer to provide the marginal Z0 glassiinserts to serveas supplements of the window paneaiid permit more light to enter. Also, with the ventilator manufactured as a unit, its top and bottom bars l3 could be made of extra length so as to be trimmed off at any P int desired to fit different widths of sashes. Thus, the ventilator can be adapted to such sashes without being altered in its vital construction. Of course, after the length of the bars l3 for any installation has been determined, the glass inserts l5 and II; can easily be cut to size.

I As indicated in Figure 5, the material of the ventilator frame is channeled in its external marginal edges as indicated at IT and-fitted with lead channel strip inserts Ila. to receive the window pane and other glass elements and form weather proof joints therewith. The glass elements are alined with the ventilator frame by being marginally encased in a metallic chano nel frame III which seats like the window pane in the sash and receives the putty seal on the outside.

The side pieces ll of the ventilator frame are extended with vertical rearward strips I9 which terminate the inward bends 20. Inside the upper ends of the strips l9 are disposed pieces 2| which are formed with arcuate grooves 2m, theseforming cams for the travel of pins 22 carried in bearings 23 which extend from the upper bar 24 of a visor frame 25. The pins 22 not only act as pivots for the visor to swing out from below as indicated in Figure 4, but the cam slots 2la also provide room for a rising and falling movement on the part of the visor. In-

cidentally, the pins 22 are threaded through the bearings 23, so as to be retractable from the cam -pieces II and permit the removal of the visor;

and the pins have external and slotted heads as seen in Figure 4 to permit the.pins .to be adjusted by means of a screw driver.

The visor frame 25 is principally constructed along the lines of the ventilator frame in that it is channeled and fabric-insulated in respect 'to a glass sight 25a. The swing of the visor is controlled by the familiar type of spacer bracket 26 which is longitudinally slotted at 26a to receive the neck of a bolt 21 whose shank passes through a flange a of the bend 20 to receive an adjusting cap nut 28. It is seen inFigure 3 that the bracket 26 folds closeqto the ventilator when its visor is closed, soas not to be in the way.

The visor frame is specially constructed to perpeculiarity of the visor frame also extends to its relation with the top bar l3 of the ventilator frame and bar 24a of a visor next below the one just described. In other words, the first-described visor is intended to close in relation to the said bars in a manner to both permit the easy operation of the upper visor, yet enable it to be tightly closed when swung in. For the purpose specified, the top bar 24 of the upper visor is formed with a rear upstanding angle strip 240 in order to interlock with a similar downward formation or flange I30. of the bar l3 when the visor rises into closed position. A fabric weather strip 24d is carried on theinner side of the strip 240 in order that the closure so formed may be weather proof. When the visor has been closed as described, its bottom bar flts in the angle formed by the bar 24a with a rear upstanding extension :1 of its own, the receiving side of the latter also carrying a strip of insulating fabric Me. Thus, an interlocking seal between the upper visor and the top bar of the ventilator has been provided; also, a similar seal between the meeting bars of the visors is had. In addition, the sides of the visors are sealed to the sides of the ventilator frame, and the bottom of the lower visor tothe bottom of the ventilator frame, by forming the side and bottom bars of the latter with an outwardly facing channel lsd containing a felt flller l3c. Thus the sides of the visor sections b and the bottom of the same in' the lower visor shut against the flller lie when the visors are closed.

The vertical bends 20 at the sides of the ventilator frame are supplemented by a bottom section 20a. and sufllciently spaced from the visors to permit the insertion of a fly screen which is grooved in its side and bottom edges from the high position indicated by dotted lines in Fig. 2 to the full line position, the screen receiving the bends and said section in its grooves as it is slid down. It is seen that the ventilator visors may be operated individually or jointly without being affected by the flyscreen. If desired, the fly-screen may be replaced by a frame formed with inwardly rojecting ventilator louvers, these being more suitable to check drafts in colder weather.

It will be seen from the above description that I have provided a ventilator which is easily applicable as a unit to any type of window. In

fact, it may be made much narrower than shown,

whereby to serve fully as a substitute for a window pane in a double window such as shown in Fig. 6, or a French window. The ventilator does not require any changein window design or construction as it does'not depend in any manner on the form of the window, but may be dimensioned to suit a variety of window widths as was previously explained. The ventilator would occupy a height of less than one-third in a sash of conventional height, although a shorter sash has been shown in the drawings because of lack of space, this feature indicating that an ample amount of light through the sash is allowed despite the presence of the ventilator. The visor attachments permit various degrees of ventilation to pass through the ventilator without occasioning direct drafts. Yet, additional protection may be had by the provision of a slide containing fly netting, -louvers, or even an exhaust fan in case this type of ventilation is desirable.

The novel ventilator is preferably constructed of copper strip material or of such other metal as may withstand weather conditions or the effects of water seepage when the window is washed. In this connection, it is seen that the novel ventilator does not present obstructions to the window washing operation. Further, when the window has been locked, the ventilator provides no access to anyone seeking an unauthorized entrance, as the visor. openings are narrow and remote from the locking zone of the window sash. While the ventilator may be applied to any window in a dwelling or other building it is preferable to install it in a window which is usually kept closed or locked so that proper ventilation may be had without the necessity of unlocking or opening the window. Finally, it will be appreciated that the novel ventilator is neatly constructed along lines of simplicity and rigidity.

I claim: I,

1. A window ventilator comprising a rectangular frame, visor elements carried by said frame, spaced channel flanges along the sides and bottom of the frame on the inner side of the ventilator and a fly-screen frame grooved in its sides and bottom, the flanges forming guides to receive the screen frame as a slide.

2. A ventilator for windows comprising a frame insertable in the window sash, the upper bar of the frame being of rectangular cross-section and with a pendent outer flange, a visor swingably mounted onsaid' frame, said visor having an upper bar of angular cross-section seating the upper bar of the frame when the visor is closed, said flange of said frame overlapping the upper bar of said visor, cams carried by the ventilator frame at the sides, and

.hinge pins carried by the visorandtraveling in the cams, the course of the cams being such as to lower the visor to clear said outer flange before it can be swung out.

3. A ventilator for windows comprising a frame insertable in the window sash, the upper bar of the frame being of rectangular cross-section, and with a pendent outer flange, a visor swingably mounted on said frame, said visor having an upper bar of angular cross-section seating the upper bar oflthe frame when the visor is closed, said flange of said frame overlapping the upper bar of said visor, cams carried by the ventilator frame at the sides, and hinge pins carried by the visor and traveling in. the cams, the course of the cams being arcuate whereby to lower the visor in an outward course to clear said outer :flange before it can be swung out.

4. A window ventilator insertable in the pane of a window and comprising a rectangular frame, upper and lower individually framed visor elements mounted in said frame for independent swinging movement, the upper' bar of the upper visor frame and the upper bar of the ventilator frame being engageable to form a closure, the lower bar of the lower visor frame and the lower bar of the ventilator frame being similarly engageable to form a closure, and the respective bottom and top bars of the upper and lower visor frames being engageable to form a closure.

5. The structure of claim 4, the meeting bars of the visors being of angular cross-sectionwhereby to cause the visors to engage with each other.

6. A window ventilator comprising a unit adapted to replace a portion of the pane in a window sash, said unit including a rectangular frame having top, bottom and side bars, said top and bottom bars being extended beyond said side bars, the free ends of said extended bars being adapted for rigid seating in the stiles of said sash, and the inner edges of said extended portions of said top and bottom bars being formed to support transparent glazed panels therebetween.

'7. The structure of claim 6, and the upper edge of the top bar and lower edge of the bottom bar being formed to provide longitudinally extending channel portions to seat the free edges of the remaining sash pane portions.

8. A window ventilator comprising a unit adapted to replace a portion of the pane of a window sash, said unit including a rectangular frame having top, side and bottom bars, said top and bottom bars being extended beyond said side bars, the free ends of said extended bars being adapted for being rigidly seated in the stiles of said sash, the inner edges of said extended portions of said top and bottom bars supporting glazed transparent panels therebea portion of the sash pane, said unit comprising a rectangular frame having top, bottom and side bars, said side bars being spaced apart a distance less than the width of a. sash of minimum normal width, the top and bottom bars of said frame being extended laterally beyond said side bars a distance sumcient to permit the outer ends of said top and bottom bars to seat in the stiles of a sash of maximum normal width, the facing edges of said extended portions of said top and bottom bars being formed to support glazed transparent panels therebetween, and movable ventilation control means carried by said frame between said side bars.

10. A window ventilator comprising a unit adapted to replace a portion of a window sash pane, said unit including a rectangular frame having top, bottom and side bars, said top and bottom bars being extended beyond said side bars, the free ends of said extended bars being adapted for being rigidly seated in the stiles of said sash, panels carried between the facing edges of the extended portions of said top and bottom bars, and movable ventilation control means carried by said frame between said side bars.

- EDWIN W. FRIEDHOIDI. J3.