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Publication numberUS908576 A
Publication typeGrant
Publication dateJan 5, 1909
Filing dateApr 18, 1908
Priority dateApr 18, 1908
Publication numberUS 908576 A, US 908576A, US-A-908576, US908576 A, US908576A
InventorsDaniel J Kelly
Original AssigneeDaniel J Kelly
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 908576 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


Patented Jan. 5, 1909.



Specification 0! Letters 1atent.

Patented Jan. 5, 1909.

Application flied April 18, 1908. Serial No. 427,958.

To all whom it may concern:

Be it known that I, DANIEL J. KELLY, a citizen of the United States, residing at (hi cago, in the county of Cook and State of Illimore, have invented certain new and useful Improvements in Ventilators, of which the followin is a specification, reference being had to t 1e accompanying drawin s.

This invention relates to wine ow ventilators of the detachable type and consists of the novel features of construction and the combination and arrangement of parts hereinafter full r described and claimed.

f he object of the invention is to provide a simple and practical window ventilator which will permit fresh air to enter the room but at the same time'effectively exclude dust and prevent direct drafts; which may be readily adjusted to control the ventilationand which may be uickly and easily arranged in and removed rem the window frame. 7 i

A further object of the invention is to provvide an im roved filler strip for use 11 on the top of the ower sash of the window w en the ventilator is arranged in the bottom of the frame, so as to prevent the entrance of air and dirt between the two sashes.

The above and other objects of the invention are attained'in its preferred embodiment illustrated in the accompanying drawings, in

which Figure l is a perspective view of the ini roved ventilator, looking toward the outer side of the same; Fig. 2 is an elevation of the inner side of the ventilator showing it in its normal or open position in full lines and in a collapsed or -l'oh ed position in dotted lines; Fig. 3 is a vertical. section through-a window frame showing the ventilator arranged in the same; and Fig.4 is a detail sectional perspective of a portion of the lower sash and the im roved filler strip. 7 l

n the drawings I denotes a portion of a window frame having upper and lower sit-shes 2, 3 arranged for slidinp movement helwecn the usual stop strips or heads 4.

The improved ventilator may be arranged either at the top or at thebottom of the win dow frame, but it is n'el'emblvarranged at the bottom beneath the. lower sash 3, as will be understood upon rel'ercni'c to Fig; 3 of the drawings. The ventilator is in thoiform of a rectangular frame of any suitable height and of a length corres )ondin to thewuidth ol' the sash so that it wi l] be of vactively "retainerl in the guideways for the latter formedby the.

stop strips 4of the window frame. T0 ormit the ventilator frame to be readily app ed folda'ble or collapsible and of four bars or sections 5, ti, 7, 8, pivotally connected at 9 so that the frame may be folded to the shape of a rhomboid, as shown in dotted lines in Fig. 2, to reduce its length and permit it to be inserted between the stop strips 4 on the opposite sides of tlie window frame. The sections 7, S of the ventilator frame form its ends and they are arranged to overlap the ends of the other two sections 5, 6 which form the top and bottom of such frame, the pivots 9 passinp through said overla ping ends of the sections and being preferab y in the form of rivets. To further reduce the length of the frame when it is collapsed or folded into the form of a rhomboid the inner corners of the .top and bottom sections 5, 6 are preferably beveled, as shown at 10.

Arranged over the opening in the ventilator frame is a screen or covering 11 of woolen cloth or other suitable fabric which will permit the fresh air to pass freely through the same but ntthe same time revent direct drafts and effectively exe ude dust and dirt. The edge of this covering 11 is tacked or otherwise secured to the'inner edges of the four sections of the frame, as clearly shown in Fig. 2. Uwingto the flexit bility of the covering 11 it will not interfere with the folding or eolla sing movement of the frame when the venti ator is placed in or removed from the window.

= in order to prevent the entrance of drafts and dust between the top of the ventilator and the bottom of the sash 3, a strip12 of canvas or the-like is tucked or otherwise sei as shown.

room to be effectively controlled and t0 prosnow, in. guard or solid closure 13 is provided for the opening: in the frame. This closure is in the form of a board 01" upon the outer side of the frameand preferit ily hinged to the top section 5 of the frame so as to swing out\vtirdly"nnd upwardly. Said closure 13 is of substantiallyrectangut'ect the cloth ooverin 1.1 from rain and P i v to and removed from the window it is made cured to the upper edge of the top section 5,

in order to permit the ventilation of the plate arranged lar shape and has its'top and botttfnr'edges q hwxda o... i

l4 beveled downwardly and outwardly" olyin -the nwlitt lireotion"to-horrespond with the which latter said closure is adapted to swing when moved to a vertical position. These beveled edges of the closure and the top and bottom strips effectively revent water and snow from working throug the ventilator frame when the closure is in its vertical or closed position to cover the opening in the frame and to protect the fabric covering 11. The closure 13 is united to the top section 5 b strap hinges 16, the lower leaves of whic are secured to angle metal reinforcing plates 17 arranged upon the ends of the closure 13, as shown in Fig. 1 and their upper leaves are secured to metal reinforcing strips 18 which partially surround the top section 5. Similar reinforcin strips or lates 19 are arranged upon the ottom section 5 to partially surround the same. Said metal parts 17, 18, 19 are employed when the closure and frame of the ventilator are constructed of wood and serve to effectively strengthen the same and prevent the parts from war ing and also to strengthen the connection 0 the hinges 16.

In order to ermit the closure 13 to be 0 erated and a justed from the inside of t e room when the ventilator is in position in the window, two operating cords 20, 21 are provided. These cords ass throu h guide openings 22, 23 forme respective in the top and bottom sections 5, 6 at their center and the outer ends of said cords are connected to a screw eye or the like 24 arran ed upon the outer face of the closure 13 ad acent to its bottom or free edge. The up er cord 20 asses through a guide prefers ly in the orm of a screw eye 25 arranged upon the outer face of the top section 5. Any suitable means may be provided for securing the free or inner ends of the cords, particu arly the upper one 20, so as to retain the closure 13 at any adjusted position, but as illustrated, a screw eye or hook 26 is arranged upon the center of the inner side of the top section 5 and either or both of the cords may be tied or otherwise secured to such fastening 26. It will be seen that when the up er cord 20 is drawn upon the closure 13 wil e swung upwardly and outwardly and may be retained in such position b engaging said cord with the fastening 26. y varying the angle of the closure 13 the amount of ventilation will be effectively controlled. When the cord 20 is released from the fastening 26 the closure 13 will drop by gravity to its closed osition in which it may be retained by awing upon the lower cord 21 and engaging it With the fastening 26.

For the purposc of closing the space between the uppenand lower sasheswhen the ventilator is In position beneath the lower one a filler strip or member 27 is provided.

This filler strip is flexibly or hingedly secured "to the top of the lower sash 3andis ada ted to bear a tinst theglass of'the upper sas r, as

clearly shown in Fig. 3 of the drawings. It

eoauve is preferably constructed, as shown in Fig. 4, of a piece of zinc or other sheet metal 28 and a piece of canvas or fabric 29. In making it thefabric is folded upon itself and its edges are inserted beneath a fold made in the metal. This fold is then ressed down and another fold is made in t e metal, thereby effectivel interlocking the canvas and metal. he metal is then folded once more upon itself in the o posite direction so that the doubled edge 0 the fabric projects beyond the last mentioned fold in the metal and may be tacked to the top of the window sash 3 and serve as a hinge or flexible connection for the metal, which latter bears against the window glass, as will be readily understood upon reference to the drawin s. From the foregoing it will be seen that the invention provides an exceedingly simple, practical and handy ventilator which may be quickly and easily ap lied to and removed from a window, which elude dust and dirt and prevent direct drafts, and which may be easily adjusted to vary the ventilation or to stop it entirely without removing the ventilator from the window. The ventilator may be used in houses or buildings of any description, but it is especially suited for sick rooms, hos itals, schools and the like where drafts are angerous and dust injurious.

While the preferred embodiment of the invention is shown and described in detail, it will be understood t at the invention is not limited to the spec' c construction set forth and that various chan es in the form, pro,- portion and minor detai may be resorted to without dc arting from the spirit or sacrificing any 0 the advantages of the invention.

Having thus described the invention what is claimed is:

1. A window screen or ventilator comprising a covered frame composed of pivotally connected sections and adapted to be folded in a vertical plane to permit it to be arranged between the stop strips ofa window frame.

2. A window screen or ventilator comprising an open frame com osed of pivotally conneeted sections, where the frame will fold or eolla se longitudina y to permit it to be inserter between the stop strips of a window frame and a flexible covering for said open frame.

3. A window screen or ventilator comprising a rectangular frame having top, bottom and and sections pivotally connected, whereby the frame will fold to the shape of a rhomboid, and a flexible covering for said frame, subtantially as and for the purpose set fort l. r a v A window screenonventilator comprising a recta i ularframe having. top, bottom and 'end s .tlons with theirends overla iping, pivots uniting the overlapping ends 0 said sections, the eorners of [he top and bottom l lapse in a longitudinal plane to permit it to sections being beveled and n llexihle eovering for said frame.

5. A window ventilator comprising an open rectangular frame having its top and bottom sections or bars formed with their opposing edges beveled outwardly and downwardly, a swinging closure hinged to the top bar to swing outwardly and upvtairdly and having its top and bottom edges beveled to eorres end with the opposing beveled edges of suit top and bottom bars, said top and bottom burs being formed with openings, cords assed through said 0 enings and eonneetet at their ends to the cliisure and means for securing the inner ends of said cords to retain the closure in an adjusted position.

6. A window screen or ventilator comprising an open frame composed of pivotally connected sections and adapted to fold or eolbe inserted between the stop strips on the opposite sid s of a window frame, a porous covering for the opening in said frame, and a, solid elosure for the opening in said frame.

7. A window sereen or ventilator comprising on open l'ranie eoinposed of pivotull eonneeted seetions and ads ited to [old or collapse in it longitudinal plane to permit it to be inserted between the stop strips on the opposite sides of n window lrzuno, a porous covering for the opening in said frame, a solid elosure for the opening in said frame hingedly eonneeted to one of its sections and means for operating said closure.

MlenEAL McNionoLs, MARGARET ltlcDoNoL'on.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4593492 *Aug 28, 1984Jun 10, 1986Peter LumenelloRemovable window security guard
Cooperative ClassificationA47H2/00