US1935254A - Ventilating device for window sashes - Google Patents

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Nov. 14, 1933. v SWANSON 1,935,254

VENTILATING DEVICE FOR WINDOW SASHES Filed July 29, 1932 IN VEA/'Tami' d/z www Patented Nov. 14,1933 I ytun'11.13.13 STATES Pll'rlazN'rl OFFICE; f

` Y. 1,935,254 u. vENTrLA'nNG vDEVICE Fon WINDOW sAsHEs 1 Y- A v Y charles Swanson velva, N Dak. Appiieatifm July 29, 1932 serial 1510.625588 's claims. (o1. eis-97) p My invention relates to improved ventilating devices for a window sash.r y y The main objectv of the invention is toprovide a highly leflicient ventilator incorporated as a :l part of a sash, eliminating the use of parts separately oi such sash, the device being adaptable for use while two sections of a window are closed and locked. Other objects and advantages, also the preferred construction of my device are hereinafter fully set Aforthreference being had to the accompanying'drawing, in which,-

Fig. 1 is an inside elevation of a window of the type involving two vertically slidable window sashes, the lower sash having my improved ventilator and only thelowe'r portion of the upper sash being shown, the latter in locked position with the lower sash. v'

Fig. 2 is an enlarged outside detail view of the lower part ofthe lower sash includingv my ventilator, a portion of the screen of the latter being omittedto reveal certain details.

Fig. 3'is an enlarged transverse sectional view through the ventilator part of the sash as on line 3 3, Fig. 1.

Fig. 4 is a perspective view of one of the removable deflector members of the ventilator.

Fig. 5 is an enlarged exterior detail view of the lower right hand corner of a window sash and the ventilator frame part thereof.

Referring to the kdrawing by reference numerals, I have illustrated my improved ventila-4 tor device as applied to the usualtwo-section type of window in which the upper and outer sash 6 is slidable vertically and adjacent to the lower, inner sash 7, both arranged to be locked together by a suitable lock 8.

lower sash.

My ventilator means are preferably located 5 Vin the lower part of the lower sash 7, below its pane 10, where an opening 11 about 4 inches high and about the same width as pane 10 is provided in the sash, the upper and lower edge parts thereof comprising upwardly and inwardly inclined edges 11A (Fig. 3),k the ends of said opening defined by vertical walls 12 each having a series of parallel and vertically spaced inclined grooves 13 directed inwardly and upwardly to removably retain a vertical tier of sheet metal deilector blades 14.

In the front or outer face of the sash and perimetrically of the Ventilator opening is provided a shallow recess 15 in which is suitably fixed as with screws 16 (Fig. 2) a screen frame 17 with a line mesh screen 17S, said frame be- 9 is the glassv pane of the upper sash and 10 the pane of theing preferably of metal. and'duadrangular to fit snugly in said Yrecess and lflush with the outer surface of the sash. f l

The deflector blades 14 comprise eachv a lower narrow, vertical flange 14A, the inclined body 50 portion 14k thereabove`and at the upper edge an upright flange 14B about at right angles to 14,k said latter flanges terminating at their opposite ends in spaced lrelation inwardly of the opposite ends of each blader to enable the blade to be slidably inserted with its opposite ends in horizontally registering grooves 13'and frictionally vretained therein. In Fig. 3, three deflectors 14 are showny in place and it will be .readily understood thatthe end parts of the screen frame 17 bear against all the lower flanges 14A of the deilectors .and holdnthem in place,'las-shown.. l l

18 Ais aquadrangular sheet' metal framer suit.- ably Viixed tolfthe -inner side of the sashV and its opening. concentric of the innerpart o'f the ventilatoropening, the .lower bar of saidframe preferably wide and carrying a fixed handle 19. At the top'edge of said lower bar is hinged as at 20 (Fig. 1)- the lower edge of a sheet metal lid 80` 21 normally closing the inner part of the ventilator, as` distinctly shown in Figs. 1 and 3, said lid being suitably re-enforced tol make it rigid. Suitable means of various kinds may be used to hold lid 2 in closed position and the ventilator 85V inoperative, and it will be readily seen that when it is desired to provide for inlet of air to a room through the ventilator, the lid 21 must be opened by swinging `its upper edge part inwardly and held in any desired angle.

For the latter purpose I have provided a depending hinged lock bar 22 hinged at 23 to the upper Abar of frame 18 the free end of said bar provided with a link 24 'and a cam lever 25 on thelink arranged to frictionally engage under 9,5 an inwardlyvf'projecting, fixed ear 21E (see Fig. 3) on the lower,` central part of the lid in such manner as to lock the bar 22 and press it against the face of the lid and thereby press the latter firmly to closed position.

The bar 22 is provided with a series of notches 22N, in its inner or lower edge, any of said notches adapted to frictionally engage and hold the upper free edge of the lid to retain the latter in any selected open position (see dotted presentation of lid and lock bar in Fig. 3).

In use, my ventilator device is set as desired to admit fresh air into a room. The window sashes are allowed to remain in their locked po-v sitions, and the lid 21 is tilted inwardly to any .1,10

desired angle. Air circulated freely through screen 17S is diverted upwardly by the inclined blades 14 and deflected further in outward direction by the ianges 14B causing the air cur-` rents to move in a rolling action as indicated by arrows 26 (Fig. 3) thence striking adjacent inclined areas above each blade are again deflected in rolling motion and inwardly as indicated by arrows 27. Thus the air enters the room in a rolling current but gently, its velocity being minif inized.V The lid 21 of course directs and deiiects said entering air currents upwardly.

The screen 17S is of ne mesh such thatrains and dust will not pass through. If it becomes clogged the screen frame is easily removedfor cleaning or replacement.

This ventilatorneed not necessarily be of the proportions illustrated. In locations exposed'to extreme cold and high winds the sash may be made with relatively small ventilators. In 'the type of my device shown the ventilator is unobstructive its screen frame, for example, being as shown flush with the respectivev outer surface of the sash. For a given size of window sash the glass pane is reduced in size but not sufficiently to be an objection as the ventilator part can be made in attractive nish and color to harmonize with the rest of the sashes. An important feature is that the two sashes of a window may be locked as heretofore but the ventilator is available for use making it possible for a house so equipped to be left unoccupied but properly ventilated.

Variations in construction and application of this'device may be embodied without departing from the scope and spirit of the invention. 1 a

Iclaim: A K 1. In a Ventilating device for awindow'sash having one end of its pane in spaced parallel relation to a horizontal end of the sash anda quadrangular opening provided between said end and the pane; an exterior screen member including a frame xed ina common plane with the above said lid and means in said bar to frictionf ally engage the upper edge of thelid in selective open positions. Y

2. The structure specied in claim 1, and means associated with the free-end of said bar to frictionally engage and hold the bar in depending position and bearing against the inner side of thev llid when the latter is in closed position.

3. In a Ventilating device for a window sash having one endv of its pane in spaced parallel relation to a horizontal end part of the sash and a quadrangular opening provided between said end and the pane; an exterior screen. member including a frame fixed in a common plane with the exterior face of .the sash and covering said opening, a number of vertically spaced elongated deectors removably mounted in said opening and retained in position by said screen frame, av lid member inwardly of the sash opening and normally closing the latter, hinge means for said lid at its lower edge and a pivotally suspended bar above said lid and Vmeans on the said bar to frictionally engage the upper edge of the lid in selective open positions, deiectors comprising each an elongated plate retained in the opening in an inclined plane, directed upwardly and inwardly, the lower front edge .part of each delector comprising a narrow vertical langeen-

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