US1524024A - Window ventilator - Google Patents

Description

Q m w f Jan. 27. 1925.

A." A. CRAIG WINDOW VENTILATOR Filed Sept. 16, 1921 Patented Jan. 27, 1925.

UNITED STATES ARTHUR A. CRAIG, OF CHICAGO, ILLINOIS.

WINDOW VENTILATOR.

Application filed September 16, 1921.

To all whom it may concern Be it known that I, ARTHUR A. CRAIG, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Window Ventilators, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings forming a part of this specification.

My invention relates to window ventila-, tors and is an improvement over the device disclosed in my co-pending application Serial No. 427,695, filed December 2, 1920. My improved ventilator is intended for use in window frames, though it will be apparent that the device has utility in any place where controlled ventilation is desirable.

Window ventilators, as constructed heretofore, are adapted for insertion in a window frame, and in order to compensate for variation in size, they are constructed to be extensible. A large majority of these devices interfere with opening and closing of the window, while many have proposed the use of various locking devices for holding the ventilator in the window frame. A cumbersome and expensive construction has been the result, which has greatly retarded the extensive use of window ventilators.

In my prior application, provision has been made for causing the ventilator to be selflocking in the window frame, without interfering with the window. This is accomplished by the use of material which, of

its very nature, is compressible. Thus pressing it in place, by extending the length, securely locks the ventilator in place.

In the present invention, I propose to improve the construction of this device by mounting upon each end thereof strips of material having an exceptionally high gripping ability. The provision of vertical reinforcing strips at each end of the ventilator serves as means for acquiring an increased gripping surface without making the device cumbersome.

One of the main objects of this invention is to obtain a ventilator of the simplest construction, which may be cheaply and quickly produced, and which will securely hold it self in position, directing the incoming air upwardly and preventing drafts occurring at the points of engagement or between the panel members. 7

Serial No. 5Q1,083.

In the accompanying drawings in which I have illustrated one embodiment of my invention, Figure 1 is a fragmentary iso metric view of a window frame having a ventilator embodying my invention inserted therein;

Figure 2 is an elevational view of the side of the ventilator opposite to that shown. in Figure 1;

Figure 3 is a top edge view of the same,

Figure 4 is a fragmentary end detail of the ventilator,

Figure 5 is a section taken on line 55 of Figure 2, 1

'Figure 6 is a detail view showing the manner of fastening the end reinforcing strip to a panel; and

Figure 7 is a view of the ventilator in section illustrating one panel narrower in width than the other to produce a tight engagement with the window sill. v

The ventilator comprises the extensible frame consisting of the panel members 4: and 5, which are made of any suitable character. The inner ends of the panels are provided with reinforcing strips 6 on the outer face only, which permit the two members to lie close to each other, and thereby prevent currents of air from circulating therebetween.

As is shown, the panel members 4 and 5 are so arranged that relative movement is permitted, thereby making it possible to adjust the ventilator to various size window frames. To this end, slots 7 are provided in the panel 4 preferably adjacent the inner end, and in these slots ride tension screws or bolts 8. The bolts 8 are secured in the opposite panel 5 and project through to the outer face of the panel 4. On this end of the bolt 8, a thumb nut 9 is provided which allows the degree of engagement of the two panel members to be suitably adjusted.

Likewise, the panel 5 is provided with slots 10 disposed at the outer edge of the inner end, and the slot 11 disposed centrally. Tension bolts 8 and thumb nuts 9 ride in the slots 10 and 11 for the purpose above dc scribed. It will be noted that the slots 7 and 10 serve to hold together the adjoining ends, while the slot 11 serves to retain to gethcr the middle portions of the panel members. This arrangement prevents bulging or warping, and increases the ease with which the panel members may be adjusted.

In order to facilitate this adjustment and obviate any possibilty of the two panel mom,-

- )anels are made is imn'ia'terial so far as the invention is concerned. although material of high compressibility is preferable. In order to protectthe longitudinal'edges of the panel members from wearing. strips 1% are employed, these being secured in any suitable way, as for instance, by taking along each ;face,as shown in Figure 5. The material being compressible, the prongs l6 formedby tacking will sink there into and provide a secure fasteningof the strips H. which are channeled over the edges'of each Pa I have shown in Figure 1. the ventilator inserted in a window frame 17. Its posi tion in relation to the, sash members is such that the opening. may be. varied. without disturbing the ventilator. It then extended length-wise to engage forcibly with the window frame 'which results in com pressing the edges of the panels. This adjustment is retained by tightening the tension bol-tsl). In order. that a positive grip of the ventilator in the window frame is obtained, means are provided at each end which engage the window frame. having an inherently high degree of frictional or grippingability. The strip 1-l extends preferably to the end of the panel along each longitudinal edge, and between these strips ateach edge a similar, side strip 18 is mounted. Against thestrip 18 at each side ofthe panel, a. reinforcing member 19 is disposed, which functions to stiffen the panels edge and at the'same time increase the engaging surface.

It willJbe -notedthat these members 19 protrude slightly beyond the, end of the panel, andthat friction material 20 is pro vided to encompass them in order to cover theengaging edge surface. Retaining elelHC nlS 21. may befemployed to lie against the outer side of the friction material to hold it securely about the strips, 19. may be resorted to for holding the end members on the panels. though Ihave illustrated rivets 22. passing on through to theopposite side wherethey are headed for maintainingthem in. place. It-will bej'noted as. any advantageous feature, that the edges of thefriction material2Qlprotrudingslightly. from the panel member. obtain in, ,efiect a larger engaging Any means area than that actually provided. More over. a perfect setting with respect to its position in the window may be had.

is will be seen in Figure (l, a novel means of securing the reinforcing strips (1 to the panels between which are interposed the strips la. is proposed. Along the length of the. reinforcing; strips c a plurality of ho are pierced and extended into the panel -l. p edging pins are then forcibly inserted. so that the points 26 project slightly, whichare trimmed oll' later on to obtain. a summit surface.

in important feature of the invention resides in cutting the lower longitudinal edge of the. panels in such a manner that a tight engagement is obtained with the window sill. If each of the panels are of the mic widthv and in alignment, a crack will be left between the outer panel and the window sill when the ventilator is inserted at an angle. That is to say, the panel op posile lo the one facing the inclination \Vlll be. raised out of engagement with the sill. 'lo overcome this I propose shortening the. width of the panel facing the inclination. which as shown in Figure 'Tis panel 5, and. if necessary in order to obtain a. surface engagement with the sill. trimming. off the edge. at an. angle, as indicated at'28. Thus. the lower edge. of the ventilator will meet. the window sill in close engagement throughout its length.

From the foregoing description it is apparent that l have provided a very simple. and prtu-licalwindow ventilator which is capable of being held by friction in view of the frictional engaging end strips. these latter strips assuring a positive grip with the window frame. Any angular position of the ventilator in the window frame may be had, while the lower longitudinal edge will always engage the window sill beeausev of one panel being of less width. I do not intend to be limited to the details shown. but consider that various modifications may be made without departing from the SCUIM of my invention as claimed.

I claim:

1. In combination with a window opening. a ventilator comprising an extensible frame formed of a plurality of panel n'iembers. reinforcing strips extendingalong theouter end and ying against the side faces of said panel members. and friction means covering the edges. of said reinforcing strips.

2. In combination. a. ventilator adapted for insertion in a window frame. said vent-ilator being extensible and having its edges engaging the window l frame .for holding it in any desired position. said edges comprising additional means protruding slightly at each side of the ventilator to obtain a substantially wide frictionalv surface engagement with the window frame, said means lilo permitting the holding force to react in the plane of said ventilator.

3. In COll'lblllatlOll, a ventilator adapted for insertion in a Window frame, said venti lator comprising a plurality of panels car ried in extensible engaging relation, reinforcing strips disposed at the outer ends of said panels, frictional material bent around said strips so as to cover the outer edge thereof, and retaining members for holding one edge of said frictional material against said reinforcing strips, said retaining members lying substantially from end to end of said reinforcing strips.

4. In combination, a ventilator adapted for insertion in a Window frame, the end edges of said ventilator engaging the sash members of the Window frame, and means extending along the opposite sides of said end edges for cushioning the same against the sash members, the cushioning action of said means being in the plane of said ventilator.

In combination, a ventilator adapted for insertion in a window frame, the end edges of said ventilator engaging sash members of the Window frame a pair of strips fastened at each end so that their outer vertical edges protrude slightly, and friction material mounted on said strips for covering said outer vertical edges.

In Witness whereof, I hereunto subscribe my name this 12thday of September, 1921.

ARTHUR A. CRAIG.

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