US1752913A - Window ventilator - Google Patents

Description

April 1, 1930. H. H. LEE

WINDOW VENTILATOR Filed Dec. 10, 1927 V gmxz'nb v Hannah H. Lee

$13 MI-M;,a

attomaqs Patented Apr. 1, 19307 UNITED STATES PATENT OFFICE HANNAH H. LEE, '1. PAUL, MINNESOTA, ASSIGNOR OI ONE-THIRD '1'0 FRANCES R.

MARKER/.1, 01 8'1. PAUL, MINNESOTA wmnow vnnrrnaron Application filed December 10, 1927. Serial No. 238,121.

My invention relates to window ventilators and has for its object to provide a device which ma be readily installed in a window and whic' when installed serves to permit 5 the passage of fresh air into the room without allowing snow or rain to enter and at the same'time preventing a stiff breeze or wind from blowin directly into the room. Another object 0 the invention resides m 10 providin a curved deflector within the ventilator a apted to catch the snow and ra n so as to exclude the same from the interior of the room.

Another object of the invention resides in providing latching members secured to the upper and lower portion of the ventilator adapted to engage beneath the window S111 and to engage su1table latch lu s attached to the lower sash by means of w oh the venzo tilator may be locked in place in such a manner as to prevent the raising of the window from the exterior.

In the drawings:

Fig. 1 is a perspective view illustrating an '28 embodiment of my invention applied to a double hung window.

Fig. 2 is a transverse sectlonal view drawn on line 2--2 of Fi 1.

In the use of o i ary window ventilators so considerable inconvenience arises due to the' fact that a considerable portion of the snow and rain during foul weather in frequently driven into the rooms injuring furniture and fittingswithin the same. In addition, considerable lack of safety is involved in the use of such ventilators due to the fact that no means are available whereby the lower sash may be locked to prevent the intrusion of strangers. With 111 invention the snow and rain is entirely exc uded from passage into the 'room proper and at the same time the ventilator maybe securely latched to the window sill and lower sash so that the lower sash cannot be opened from the exterior.

For the purpose of illustrating the application of my invention, I have. shown a double hung window A. which comprises a frame 10 formed with stiles 11 and 12 and rovided with the usual window sill 13.-

I0" stiles 11 and 12 vmay be constructed in the usual manner with stops 14, 15 and 16 to provide the usual runway for the two sashes of the window of which only the lower sash 17 has been illustrated in this application. The window sill 13 has been illustrated with the usual stool 18 secured to the same which overhangs the apron 19, as best shown in Fig. 2. The sash 17 is constructed with a lower transverse rail 20 and stiles 21 which are grooved to receive the usual window pane m 22. Although my invention may be used with difl'erent forms of windows, yet the same is particularly adapted for use in conjunction with a window of the type above described, and the particular window shown has been 5 used simply for the purpose of illustrating the application of the invention.

My im roved window ventilator proper consists o a case B which is constructed with end walls 23 and 24 connected together by means of a front wall 25 and a bottom 26. This construction may be made of sheet iron soldered or seamed together in any suitable manner with the front wall 25 inclining away from the bottom 26 and with the upper portion of the end walls 23 and 24 substantially horizontal. The uppermost portion of the ventilator B is closed by means of a screen 27 which may be formed with a suitable frame 28 in which the same is mounted. so This screen is hingedly connected to the ventilator by means of a hinge 50 secured to a flange. 29, which is turned up from the front wall 25 and bent inwardly into the plane of said screen. This screen, when closed, rests upon similar flanges .51 and 52 bent in from the upper edges of the end walls 23 and 24 and upon a bar 53 extending across said flanges and secured to the same at their outer ends. The ventilator is so designed that the bottom 26 is adapted to rest upon the stool 28 of the window sills 13 while the furthermost edge 30 of screen 27 is adapted to lie beneath the lowermost edge of the rail 20 of window 17 It will be noted that the rearmost portion of the ventilator is open so that air may circulate through the same and into the room proper through the screen 27 when the device is mounted within the window as shown in the drawings. 10o

For attaching the ventilator to the window two latches 31 and 32 are employed which are riveted to the front wall 25. These latches are formed with hooks 33 adapted to engage through the window. The latches 31 and 32 are constructed of spring'material so that the same may be withdrawn outwardly a distance sufiicient to permit of the disengagement of the hooks 33 with the window stool so as to allow the ven ilator to be raised upwardly and removed rom the .window when the sash 17 is sufiiciently raised. Although I have shown latches for this purpose, catches or other types of fastening devices may be used instead.

In conjunction with the latches 31 and 32 I employ two similar latch members 35. These latch members are attached to the flanges 51 and 52 of the case B and to the bar 53 and extend upwardly along the stiles 21 of the sash 17. These latches are U-sliaped and are constructed with hooks 36 similar to the hooks 33 of latches 31 and 32, which hooks are adapted to engage latch lugs 37 attached to the stiles 21 of the lower sash at the proper location. The ends of the latches 35 are bent upwardly as indicated in Fig. 2 to form clips 38 which engage the outermost surface of the lower edge of the rail 20 of sash 17 and serve to hold the upper portion of the ventilator from movement through the window. The latches 35 are constructed of spring material simi lar to the latches 31 and 32 and are adapted to move outwardly to clear the latch lugs 37 so that the sash 17 may be raised when desired.

h In ap lying the device tothe window, the sash opened a suflicient distance and the ventilator inserted into the opening formed with the lip 34 engaging the rearward edge of the stool 18. The device is then forced downwardly over the said stool, latches 31 and 32 yielding to permit the same to be brought into proper relation as shown in Fig. 2. The lower sash is next lowered until the latch lugs 37 strike the latches 35 which force the said latches inwardly a sufiicient amount to allow the window to slide in place. The ventilator is preferably held in proper position while this movement of the sash takes place so as to revent the ventilator from merely being tlpped forwardly. As soon as the lowermost edge of the rail 20 engages the curved tip 39 of each of the clips 38, said window becomes firmly fitted between said clips and latches 35, as shown in Fig. 2.

The device is now firmly attached within the window and the raisin of the lower sash from the exterior is entlrely prevented.

the removal of the device the operation is reversed. Latches 35 are first withdrawn and the lower sash opened, after which the latches 31 and 32 maybe withdrawn and the devicecompletely removed.

For the purpose of excluding the rain and snow from the interior of the room I employ a curved deflector 40 which is attac ed to the front wall 25 intermediate the upper and lower edges thereof. This defiector serves to reverse the' direction of a strong gust of wind following the wall 25 and thereby prevents the entranceof snow or rain having'a tendency to be blown into the room. At the same time this deflector serves to break up strong air currents allowing the air entering the room to circulatein a uniform and regular manner.

By hingedly connecting the screen 27 to the case B the same may be conveniently raised when. the latches 35 ha v e been disengaged. This permits of covering; thescreen with a cloth which is held .iii place ihetween the frame 28 and the caserlBj and serves as a dust filter for purifying the air entering the room. At the same time the amount of --air entering the room is cut down so as to eliminate decided draughts when the device is used in extremely cold weather.

Although I have shown in the drawings ny ventilator designed for one size of openmg, yet it can be readily understood that thedevice may be made in different sizes, or that a construction may be employed whereby the ventilator is constructed in two sections adapted to telescope together so as to cause the ventilator to fit within any size of opening within certain limits. Such forms of construction being well-known in the art, it

has 'not been thought necessary to illustrate the same in detail in this application.

My invention is highly advantageous in that it provides a simple and effective device for ventilating bedrooms and other rooms,

'where an abundance of fresh air is desired from the exterior without the possibility of snow or rain entering the room. The device" .15 perfectly safe in that the lower sash cannot be opened once the ventilator is closed, due to the latches employed for holding the ventilator attached to the window sill and for holding the lower sash attached to the ventilator. The ventilator'is extremely simple and effective in operation and will not readily get out of order. My invention can be constructed at a nominal cost so that the same may be profitably marketed.

Changes in the specific form of my invention, as herein disclosed, may be made with in the scope of what is claimed without departlng from the spirit of my invention.

Having described my invention, a what I claim as new and desire to protect by Letters Patent is:

1. A ventilator for application to a double hung window, comprising a case having a bottom, a front wall and end walls, said case being open at the rear and upper portion thereof, a screen secured to the upper portion of said case, said case being adapted to be positioned with the bottom thereof resting upon the window sill and with the upper edge of said screen immediately below the lower rail of the lower sash, a spring latch attached to said front wall having a hook adapted to engage beneath the window sill for holding said ventilator from upward movement, a clip attached to the upper portion of said ventilator, a spring latch attached to the upper part of the ventilator, a latch lug secured to the window sash adapted to co-operate with said latch for preventing the raising of said lower sash, a downwardly extending lip formed on the bottom of said case engaging with the outermost edge of the window sill and co-operating with said first named latch for holding the lower portion of said case immovable through said window, and a similar lip formed on the upper portion of said screen co-operating with the outer portion of the lowermost edge of the lower sash for holding the upper portion of said ventilator a (firom movement inward through said win- 2. A ventilator for application to a double hung window comprising a case adapted to be inserted within the opening formed upon raising the lower sash, said case being open at the top, a perforate closure for said opening hinged to the case and having the movable edge thereof disposed beneath the lower sash, and means for simultaneously attaching the said case to said lower sash and restraining said closure from opening.

In testimony whereof I have aflixed my signature to this specification.

HANNAH H. LEE.

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