US1447772A - Ventilating attachment for windows and the like - Google Patents

Description

2 SHEET -SHEET 1.

`O. P. ERHARDT.

VENTILATING ATTACHMENT FOR WINDOWS AND THE LIKE.

FILED FEB.. 26, 1918.

Mar. 6, 192.

Mar. 6, 1923,

0. E. ERHAHDT.

VENTILATING ATTACHMENT FOR WINDOWS NND THE LIKE.

2 SHEETS SHEET 2A FILED FEB. 26, 1918.

7 nu m A ff W Patent Mar. 6, 1923.

OSCAR P. EREARDT, OF WEST HAVEN, CONNECTICUT, ASSIGNOR TO THE C. GILBERT COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION F CONNECTICUT.

Application filed. February 26, 1918. Serial No. 219,529.

To all 'whom t may concern Be it known that OSCAR P. ERHARDT, a citizen of the United States, residing in West Haven, county of New Haven, and State of Connecticut, have invented certain new and useful Improvements in Ventilating Attachments for Windows and the like, of which the following is a full, clear, and exact description. 1

This invention relates to ventilators for windows and the like, and more particularly to an adjustable ventilator struct-ure provided with a po-wer driven fan adaptedv to be placed in a window frame.

One object of this invention is to provide an adjustable ventilator that may be easily and quickly mounted in different sized window frames. More specifically, one object is to provide a. longitudinally adjustable Ventilator which may be removably mounted in a window frame between either the upper or lower sash and the window frame.

Another object of this invention is to provide a ventilator for a window which may be easily removed from the Winde-w when it is desired to close the same.

Still another object of the invention is to provide an adjustable ventilator structure having a power driven fan, which is adapted to completely close thespace around the fan between the open window and the window frame so that the currents of air produced by the fan willvnot be permitted to travel in the path o-f a circle in and out of the window.

When it is desired to ventilate a room by means of a power driven fan this may be acf complished by placing the fan in the window so that it will either blow the fresh air into the room or blow the stale air out of the same. In either case if the room is to be quickly and thoroughly ventilated the fan must be so positioned that a continuous flow of air will pass through the same without producing currents of air which travel more or less in the path of a circle through the fan a number of times. That is, in order that the Ventilating fan may quickly and thoroughly ventilate the room, the space around the fan should beclosed to prevent the same air from passing through the fan a number of times. i

An important object of this invention, as above stated, is to provide an adjustable Ventilating attachment that may be quickly and easily adjusted t'o the width of the window or the like in which it is placed, in order to completely close the space around the fan between the window frame and the opened window.

To these and other ends, the invention consists of the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings,

Fig. 1 is a front View of a window showing my improved ventilator mounted there- 1n between the upper part of the window frame and the upper sash, which has been partly lowered;

Fig. 2 is a viewof the complete ventilator removed from the window, showing the opposite face to that shown in Fig. 1;

Fig. 3 is an edge View of the device shown in Fig. 2;

Fig. 4 is an enlarged sectional view, taken on the line 4--4 of Fig. 3, looking in the di# rection of the arrows;

Fig. 5 is a fragmentary sectional View, taken on line 5 5 of Fig. 4, showing the same in an enlarged scale; and

Fig. 6 is an end view of the electric motor and the brackets which support the same, the fan being removed.

In Fig. 1 of the drawing, I have shown an ordina-ry type of window, consisting of the window frame 10 and the upper and lower window sashes 11 and 12, respectively. In this figure, I have shown the upper sash 11 as being lowered and in the space between the top of the sash 11 and the upper portion of the window frame 10 I have shown my improved ventilator designated in its entirety by the numeral 13.

The body portion of my ventilator consists preferably of a rectangular shaped board or similar device 14, and a second rectangular shaped board or similar device 15 slidably secured to the member 14. The members 14 and 15 are preferably retained in slidable engagement by brackets 16 and 17. These two brackets are similar in construction so that only one need be described in detail. The bracket 17 consists preferably of a. long narrow strip ofA metal which extends across one face of the member 14. It is then bent ateach end at a` right angle to form the portions 17', which portions extend across the opposite edges of the members 14 and 15. The portions 17 are then bent at right angles forming thel portions 17, which latter portions are provided with screw holes to receive screws 17, These screws pass through the cnd portions 17 into the member 15 and rigidly secure the bracket 17 to the member 15. The length of the portions 17 of the bracket 17 should slightly exceed the combined thicknesscf the members 14 and 15 in order to provide a space between the portions 17 and 17, of the bracket large enough to permit the members 14 and 15 to slide freely therein. In order that the members 14 and 15 may be clamped in place after they have been properly adjusted the bracket 17 is provided with the clamping elements, designated in their entirety by the numeral 18. These elements are identical in structure and consist of a substantially C-shaped clampl 19 (see Fig. 5), which is fitted over the bracket 17. This member is provided with a drill h'ole which loosely receives the threaded portibn of the winged bolt 20, which bolt is provided with a threaded portion 21 having threaded engagement with the threaded opening formed through the bracket- 17 From he above description it will be seen that the bracket 17 and the similar bracket 16 retain the members 14 and 15 in sliding engagement with each other -so that they may be easily adjusted longitudinally as may be desired, and when the proper adjustment is obtained the members 14 and 1 5 may be easily and quickly clamped in this position by means of the clamping devices 18, since the winged bolt 20 may be rotated to force the inner end of the bolt 21 into contactwith one face of the clamp 19, and thus force the face of this member which contacts with the member 14 into clamping engagement with the same.

The bracket member 16, as above stated, is similar in structure to the bracket 17, but is not provided with the clamping devices 18, since the two clamping devices formed upon the bracket 17 will be sufficient to clamp the members 14 and 15 in the desired position. The bracket 16,'however, is necessary to retain the members 14 and 15 in sliding engagement with each other. This bracket 16 is preferably applied to the ventilating device 13 in the reversed position to the bracket 17, that is, the ends of this bracket 16 are rigidly secured to the member 14 by screws 17 a, as shown in Fig. 1, whereas the ends of the bracket 17 are secured to the member 15, as shown in Fig. 2.

The sliding member 14 has formed therein adjacent its outer end a relatively large circular opening 22' in which opening a power driven fan having the fan blades 23 is rotatably mounted. Any of the well known types of electrical fans may be used for this purpose, consisting 'of an electric motor having` current supply wires 24. In order to 'rigidly mount the motor 24 upon the member 11 so that the fan which is mounted upon one end of the armature spindle of the .motor may be properly positioned within the opening 22. I provide the motor 24 with a. supporting bracket consisting of a disklike plate which is rigidly secured to the inner end of the motor by any desired se` curing means.l such as screws 26. The 'disklike plate 25 preferably has a. plurality of supporting bars or straps 27 secured thereto by any desired securing means, such as rivets 28. These supporting bars extend outward from the member 25 in a radial direction and have their outer ends rigidly secured to the member 14, as shown in Figs. 1, 2 and 3. The means for securing the outer ends of the bars 27 to the member 14 consist preferably of bolts 29 which pass through the member 14, and through the drill holes BO'forined in the outerend of the members 27. These bolts 29 are provided with the usual washers 31 and threaded nut by means of which the straps 27 may be clamped in place upon the member 14. In order to provide a guard which will prevent objects from coming into contact with the rapidly rotating blades 23 of the fan, I have provided the wire mesh guard 33 upon one face of the member 14, although it will be obvious that this guard may be placed on either or both sides of-the fan if desir-. ,s able. The guard has an opening formed at its center sufficiently large to clear the rotating spindle of the motor, and the outer edges of the guard may be secured in place upon one face of the member 14 by the bolts 29 and washers 31 above mentioned asY shown in Fig. 1.

From the foregoing description` taken in connection with the drawings. it will be seen that my Ventilating attachment may be easily and quickly applied to any window, the width of which does not exceed the range or attachment permitted by my device, ,and it will also be seen that my ventilator may1 be applied either at the top or the bottom of the window, that is, it may be applied between the top of the upper sash and the upper part of the window frame, as shown in Fig. 1; or it may equally as well be applied in the lower part Vof the window between the lbottompart of the wlndow' fiume and the lower sash. It will also be apparent that when my device has been placed in a window and the members 14-and 15 have been adj usted longitudinally relatively to each other to insert their ends in the grooves formed in the oppositesides of the window fra-me in which the window sashes slide, and have been clamped in this position by the clamping means 18, my device will be rigidly secured within the window frame, so that there will be no danger gf the same being accidentally displaced therefrom.

Furthermore, should it be desired to use my improved ventilator to produce currents of air in the opposite direction from that in which the currents of air would be produced when my ventilator is placed in the window as shown in Fig. l, this may be easily done by reversing the position of the ventilator; that is, assuming that my ventilator when positioned within the window, as shown in Fig. l, operates to blow fresh air into the room, and it was desired to reverse the device so that it would blow the stale air out of the room, this may be easily done by simply turning my Ventilating attachment over so that it would assume the position shown in Fig. 2, and then placing the same back in the window.

From the above disclosure it will be apparent that I have devised a Ventilating attachment which may be easily and quickly mounted in and removed from a window frame, which is simple in construction, may be easily and inexpensively manufactured, and which is adapted to be used in windows of various sizes and shapes.

I have not attempted to describe the modifications of the construction whichl may be adopted without departing from the scope of the invention as defined in the claims.

What I claim is:

l. A Ventilating attachment for windows or the like comprising a pair of boards slidingly bracketed together and adapted to close a space between the window and the window frame, brackets for joining said boards together comprising a pair of straps respectively secured to one board and enciri cling the other, clamping means mounted upon one of said straps comprising a thumb screw and a substantially C shaped spring member, said screw passingthrough one portion of the spring member, screwing through the strap into contact with another portion of the spring member to force same against the encircled board, one of said boards being provided with a circular opening adjacent the end thereof, an electric fan mounted upon a surface of said board with the fan of same arranged to rotate within said opening substantially filling same and a Wire mesh guard over said opening substantially in the plane of the surface of said board, said fan arranged to force air from one side of the window to the other through the wire mesh covered opening.

2. A ventilating attachment for windows or the like comprising, a pair of boards slidingly bracketed together, one of said boards having a circular opening adjacent the end thereof, a wire mesh screen covering said opening, a motor, having a shaft extending through said screen, mounted upon said board central with said opening, a ring secured to said motor and flat strips having ends secured to said ring and extending radially therefrom in spaced relation, the opposite ends being secured to the board adjacent the edge of said opening and a fan mounted upon said extending shaft adapted to revolve within said opening in the board to draw air from one side of said board to the other, said fan substantially filling said opening and being between the inner and outer surfaces of said board.

3. In a Ventilating attachment for windows or the like, the combination of two boards slidably mounted one upon the other, each of said boards having a bracket mounted thereon which completely overlaps the other board, one of said brackets having a pair of clamping members thereon arranged to clamp against the upper and lower edges of the board overlapped, one of said boards having a circular opening adjacent an end thereof, a motor driven fan mounted concentric with said opening with the fan blade lying between the inner and outer surface of said board` a wire mesh guard over said opening and supporting means for said motor driven fan comprisinga number of radially extending straps secured to the frame of the motor and to the board adjacent the edge of said opening respectively.

In witness whereof, I have hereunto set my hand.

OSCAR P. ERHARDT.

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