US1102023A

US1102023A - Ventilator for windows.

Info

Publication number: US1102023A
Application number: US76528513A
Authority: US
Inventors: Raymond L Eggleston
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-05-03
Filing date: 1913-05-03
Publication date: 1914-06-30
Anticipated expiration: 1931-06-30

Description

R. L. EGGLESTON.

VENTILATOR FOR WINDOWS.

APPLICATION FILED MAY a, 1913.

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' WITNESSES M52 1%!!326 zi ayiiza yy j 71 ATTORNEYS COLUMBIA PLANOIJRAPH 60-.WASHINOTON. D. c.

R. L. EGGLESTON. VENTILATOB. FOR WINDOWS. APPLICATION FILED HAYS, 1913. 1,102,023 Patented June 30,1914.

I 3 SHEETS-SHEET 2.

ATTORNEYS.

R. L. EGGLBSTON.

VENTILATOR FOR WINDOWS.

APPLICATION FILED MAY a, 1913.

Patented June 30, 1914.

I 3 SHEETS-SHEET 3 3 plied to or removed from the window frame from entering the room.

the plane of the lower sash in order to per- TED STATES PATENT FFTQFZ.

RAYMOND L. EGGLESTON, OF HOUGHTON, MICHIGAN.

VENTILATOR FOR WINDOWS.

To all whom it may concern Be it known that I, RAYMOND L. EooLn- STON, a citizen of the United States, and a resident of Houghton, in the county of Houghton and State of Michigan, have invented a new and Improved Ventilator for \Vindows, of which the following is a full, clear, and exact description.

This invention relates to a ventilator in the nature of an attachment that is applied to a window frame at the sill thereof so as to allow air to enter a room when the lower sash is partially raised, and the invention relates more particularly to a combined screen and ventilator of this character.

The invention has for its general object to improve and simplify the construction of devices of the nature referred to so as to be comparatively simple and inexpensive to manufacture, capable of being readily apand adapted to be held in such position that the lower sash can be readily opened or closed while the device is in site, while at the same time preventing flies, dirt and dust Another object of the invention is the provision of a novel arrangement of slats which are adapted to be held in open position by a spring means so arranged as to permit the slats to close when the air is, blowing at an objectionably high velocity, there being employed in connection with the slats a locking device capable of holding the slats completely or only partially closed without interfering in the latter case with the automatic closing of the slats under the. wind pressure.

Another object is the employment of a simple, novel and effective means on one. or both ends of the device for engaging in the guideways of the window frame for the upper sash, so as to hold the device out of mit the'same to be opened or closed while the ventilator and screen device remains in position.

With these objects in view, and others as will appear as the description proceeds, the invention comprises various novel features of construction and arrangement of parts which will be more fully described hereinafter and set forth with particularity in the claim appended hereto.

In the accompanying drawings, which Specification of Letters Patent.

Application filed May 3, 1913.

illustrate one embodiment of the invention,;

Patented June 30, 1914:.

Serial No. 765,285.

and wherein similar reference characters are employed to designate corresponding parts throughout the several views, Figure 1 is a view of the combined ventilator and screen applied to a window and observed from within the room; Fig. 2 is a similar view showing the device from the outside; Fig. 3 is an enlarged vertical section of the combined ventilator and screen taken on the line 33 of Fig. 4 withthe slats locked in closed position; Fig. 4 is a sectional view 011 the line ie-4L of Fig. 3, showing the window frame engaging device on the end of the ventilator; Fig: 5is a sectional view on the line 5-5 of'Fig. 1 with the slats in open position; Fig. 6 is a detail sectional view on the line 66 of Fig. 3 Fig. 7 is a sectional view showing the arrangement of the slat opening spring; Fig. 8 is a fragmentary perspective view of the window frame engaging device on the end of the ventilator; and Fig. 9 is a perspective view of the slat closing lock.

Referring to the drawing, A designates the window frame in which is positioned the screen ventilator B that rests on the sill 1 of the window frame and is positioned behind the lower sash C.

The combined screen and ventilator B is so designed that it can be fitted in place without requiring any alteration in the window frame or the application of any devices thereto for holding the ventilator, and furthermore, the ventilator is readily removble from the window frame.

The ventilator comprises a rectangular frame consisting of upper and

lower rails

1 and 2 and end rails or stiles 3. The inner is provided with vertically-extending end plates? fastened to the stiles 3, so as to accommodate between them the slats 8 that control the area of opening of the ventilator.

Extending between the vertical end plates 7 is a downwardly inclined water shedding strip or plate 9 which abuts the upper rail 1 and overhangs the slats 8, thereby preventing snow, rain or dust from entering the room through the ventilator. On the bottom rail 2'is provided a stop strip 10 with which the lower slat 8 is adapted to engage when in closed position, the upper slat being adapted to engage the under surface of the shedding plate 9 when the slats are closed.

The slats are each pivoted at 11 on the end plate 7, and a link member 12 or bar is pivotally connected to each slat at 13 adjacent the upper corner of the slats at one end. Flexible sealing strips 14 of leather or other material are applied on the upper outer edges of the slats and on the stop strip 10 so that when the slats are in closed position it is practically impossible for dust to enter through the ventilator, as clearly shown in Fig. 3.

The slats are adapted to be held yieldingly in open position by a spring 15 which has one end connected with the lower slat 8 at one corn-er and the opposite end connected with one of a series of hooks 16 on the frame of the ventilator, these hooks roviding for adjustment of the tension of the spring so that the slats can be made to close automatically under any desired wind preswhen in open position are inclined so that;

a substantial area is exposed to the wind which effects the closing of the slats when the pressure exceeds the tension of thespring. then the slats are in the open po sition shown in Fig. 10 air can freely ente through the ventilator by passing along the slats, as will be readily understood.

In order to lock the slats completely or partially closed the locking device is ar ranged in such a position as to engage one of the slats. This locking device, shown clearly in Figs. 3 and 9, consists of a slide 17 that is set into a groove or chamber 18 in the inner surface of one of the stiles of the ventilator frame, and on this slide is a rearwardly-extending tongue which passes through an opening 20 in the ventilator frame and projects outwardly therefrom at a point where it engages the lower slat 8.; The slide 17 moves back and forth on a plate 5 25 set into the chamber 18 and fastened to the frame, there being a slot 22 in the plate 21 to register with the opening 20 for al-g lowing the slide 17 to move freely up and down. The locking device is held in position by a spring 23 fastened at its lower end 241, 3, to the ventilator frame, the spring being preferably of wire and having. 1ts straight portion vertically disposed and engaged in a recess 25 in the side of the tongue 19, thereby preventing the tongue as the device does not act so freely as to slip down under the tension of the slat opening spring 15. It is to be understood that in any open position of the slats the wind acting on the latter will, when greater than the tension of the spring 15, close the slats so as to prevent air from entering the room when the velocity of the wind is too high.

The ventilator B is designed to assume a position which will not interfere with the closing of the lower sash, and for this purpose window frame engaging devices 0 are provided on the end of the frame of the ventilator. Each window frame engaging device comprises, as shown in Figs. 4-, 6 and 8, a U-shaped member 26 which spans or receives the end of the ventilator frame and is as long as the stile thereof. The sides 2'? of the U-shaped member 26 have inwardly-bent flanges 28, the member 26 being of sheet metal, which flanges engage flanges 29 that project from opposite sides of the stile 3 or end of the ventilator frame, said flanges 29 being formed by the edges of a plate 30 fastened to the end surface of the stile 3. The U-shaped member 26 carries a strip 31 that is secured to the side 32 of the member 26 "and extends laterally from the latter so as to engage in the guideway or groove 38 for the upper sash of the window frame A. The member 26 is urged outwardly from the end of the ventilator frame by a spring or equivalent de- Vice 3% which is seated in an opening or recess 35 in the stile 3, there being a guide pin 36 fastened to the member 26 and sliding through a passage 37 in the stile 3. In order to disengage the device C from the window frame it is merely necessary to press the said device inwardly against the tension of the spring 34-, thereby disengaging the strip 31 from the upper sash groove 83 of the window frame, and when this disengagement is effected the ventilator can be bodily removed. The upper sash groove engaging strips 31 of the device G are so positioned that the inner face of the ventilator frame will be practically flush with the outer surface of the lower sash, so that when the lower sash is in open position, as shown in Fig. 5, the upper rail of the ventilator frame will engage the lower rail of the lower sash and thereby prevent flies from entering between the sash and ventilator.

From the foregoing description taken in connection with the accompanying drawings, the advantages of the method of operation and of the apparatus shown will be readily understood by those skilled in the art to which the invention appertains, and while I have described the apparatus which 1 now consider to be the best embodiment thereof, I desire to have it understood that the apparatus shown is merely illustrative, and that such changes may be made when desired as are within the scope of the appended claim.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent:

A ventilator comprising a frame, horizontally disposed slats pivoted therein on horizontal axes, and said slats being connected together, the frame having a vertically-disposed opening, a member slidable in the opening and disposed in. engagement with one of the slats and movable transversely to the axis thereof,means tending to move the slats in one direction and opposing the movement of the said member, said member having a groove disposed parallel with the line of movement thereof, and a wire element fixed on ,the frame and engaging 20 in the groove for forming the sole retaining means for the said member and permitting the latter to slide.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RAYMOND L. EGGLESTON.

Vitnesses FRANK BELFREY, BERT OBENHOFF.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Yatents, Washington, D. G.