US2247947A - Window ventilator - Google Patents

Description

July 1, 1941. w HENDERSON 2,247,947

WINDOW VENTILATOR Filed July 14, 1938 (k /wa w 2770mm K5 Patented July 1, 1

UNITED STATES PATENT OFFICE Y 2,247,947 WINDOWVENTILATOR ,Will iam Henderson, Mineola, N. Y. ApplicationJuly 14,1938,SerialNo. 219,1 15 Y '3 claims. (01. same 7 My invention relates to ventilators in windows, so constructed and arranged that controlled ventilation may be provided without moving a window sash. More particularly, I provide'a construction and an article of this character which has important advantageous characteristics compared with constructions which have heretofore been suggested. My invention involves improvements to provide ventilators that may be universally installed, without change in existing window panes and muntins, that will provide simplicity of construction, assure the screening of the air when the ventilator is open, permitof any desired adjustment of the volume of air, provide for manufacture of the several parts in the combination at far less cost, involve no obstruction to the light penetration, involve glass parts of simple and economical form, not liable to breakage, nor diflicult to produce,and in all a most economical, durable and easily manipulated ventilator which may be combined witha por-' tion only of a window pane, or supplant one en tire pane of glass, and in case of accidental damage, permit of simplicity and economy of replacement.

Furthermore, my construction involves part glass and part metal framing, and connections made of the metal parts of the structure made in a relatively simple and economical manner, and permit of assembly by simple implacement of parts. Also, there isobtained, by my invention, connection of the ventilator with the window pane or the muntins, in the simplest form-of the glazing art, insuring the same permanent weatherproofness as attained in'the glazing of a plane sheet of glass in the muntins of the sash; without mechanical devices. '1

My construction furthermore permits ofthe production of the complete assemibled'article that may be installed by any glazer, and therefore an article of practically universal use of manufacture and distribution for installation in any predetermined standard sizes.

My ventilator may be installed in casement windows as well as sliding sash windows? In particular, it provides for a suitable volume or air-flow which is prevented from blowing directly into the room, and therefore eliminates" the disadvantages necessitatingthe partial opening of a casement window, or the partial lifting or lowerand thus affects the vertical strata of air lying close to the window, and prevents or minimizes condensation on the window surface. By simple regulation of the volume of air, and as my'ventilator affords a large volume of air if desired, the advantages of temperature regulation in the room involve uniformity, without draft or condensation, on any metal parts or on the otherwise clear window panes.

In a preferred form of my construction, I pro: vide a frame to set in the plane of the window pane, occupying a portion, preferably the lower portion of the window pane, and with a came top to engage an edge of a window pane. When my device is intended for the upper sash; al'bottom frame extends substantially horizontal outward approximately the same distance-asthe height of the first frame, and from the top edge of the first frame to the outer edge of thehorizontal frame a plate of glass is glazed by suitable came, or other frame members connecting it at its top'and bottom to the other frames with a weatherproof joint, and at both horizontal. ends it is connected or glazed to the inclinededgeof the' end-closing members of the ventilator; These end-closing members may b'eitriangular pieces ofglass connected to the first vertical frame member and the inclined glass plate; but as the light penetration is essentially'provided by the'inclined plate of glass, the end members may be formed of sheet metal,-and in sodoing the sheet metal members may-be most economically formed with the came orlike connections, for assembly and support of the other members. 7 I Having thus atriangular light penetrable ventilator structure with an open frame bottom-substantially horizontal and protectedfrom the weather by the inclined glass plate, the opening at the bottom is formed with border ledges, on

screen by its weight in its functioning positionwhen the air current is permitted to enter; The

for cooperating member's between the inside of the triangular members'of the ventilating box,

and the ends of the tiltabl'e plate, yielding means and form so made as to loosely fit into the recess formed between the outer edge of the wire screen mat and the outer lower edge of the inclined glass plate,which therefore constitute,- in ef: feet, a hinged connection for the outeredge of the air-control plate andpermit' its ready ad- .justmfent to any angle desiredifor .ventilation', i"'v and, in particular, permits its insertion without ,7

detail mechanism of any sort, and therefore of simplicityv and the avoidance--oi any detail mechanism of.obviousdisadvantage,-

. Thusgthe airscreen-member as a unit,-,and the controlling adjustable tilting plate, for: air-regula tion mayfbe' completely madeseparate, packed,- shipped and handled separately; and inserted by'simple implacement in-theirfunctioning positions, after the main memxbenof the ventilator has been. installed. Furthermore, itv permits the replacement "of the wire screen, or the; cleaning of the'screen and tilting'control: plate with the greatest convenience; J 1 c a another form of my? construction, ;I provide a main vertical frame "adapted to: :fit'x'and -be glazed 1 directly to the muntins;1:in. placer of the ordinary simple plate of: glassia With this: frame I embody a glass sheet glazed to the top edge" and extending 'at a slight .1 angle," to;= provide the full light penetration of the 2 area between-the :mune tins. A'tg'the bottom of the frame I extend asub+ stan-tially horizontal frame to theouter: edge to which the inclined sheetof glassis-gl'azed; and the bottom frar'ne has,- as"in" the previous form, the surrounding ledges adapted for the reception of the'wire screen simply placed' thereinyanduori top of'the screen the tiltingair fiow-controlplate which is manipulated from 'thejnner accessible edge, and'hi'nges at its outer'edge i'nthe angle formed by the inclined plate and the bottom frame. As inthe previous forrn; the ends'of the control'plate ihterengage with' end walls between the; mainframe and the lateral edges of the inclined glass-sheet, in s'uc ha manner: as to-permit the automatic holding in position of the air fiow= I control *plate'at any desired angle when voluntarily raised bya'suitable and c'onvenie'nt handl'e in the for'm'of an overhanging hookor'knobat tachedatithe' inner edge'of the co ntrol plate. i In either form, a metal" plajtemaybe substi tu-ted forthe tilting air-control"plate', wi-th' suitable; and preferably friction inter-engaging means at itsends to'firmly hold it at any angle to which it has be'en voluntarily-moved in setting the ventil'ator into action. -5 It will b'e understood that when my ventilator is disposed with the inclined'plateextending'out: warclly of the window, the controlledscreen and ventilating provide for up-d-raft, with all the mechanism protected.

the form; shownli and described, it will be noted that when I use glass or' light. peiw'zious; materi'al'for the inclined i'a'ceortwall ofimy'ventil'atonbox the fact'that .Ixmayuse'or'dinary stock plate glass simplifies "andacheapens' the-con structiorr compared with; any specially formed and permits me to stamp or press out the different members, both the inclined side or face, the tiltable air-fiow-control shutter, and thetriangular ends of thebox and thereby-in some or all of these parts the construction is further simplified,

and is applicable in cases where ample light volume is attained through the balance of the window, and only ventilation and durability are .requirediof the ventilator. In further simplifying', for certain uses, I may omit the wire screen,

and;.,in: any; event, the air-control plate provides for the full opening of the bottom of the Ventilator, and therefore the practically 100 per cent passageofairwhen the plate; is open to permit ventilation, which'it willbe recognized isa characteristic y'differing entirely from sliding plates with perforations=orslots, which at best can only providefora maximum of one't-half.v the air-flow area, and; in other respects arei disad vantageous-andare relatively expensive.

While in preferred forms ,I havesshown-myaircontrolplate as fitting ens-its outer edge 'inua recess,'which irr-eifect is a hinge without detail mechanism, 4 I may embody my invention with the'inner edgewofthe, ai-r=-control plate suitably fitting into a recess; orunderan overhanging catcher two, andliftthe outer edge rofthe plate upward to secure the ventilation; In such construction preferably have theilower supporting or bottomframefor the plate inclined so that it; attaches 'to the iinclined.-'plate or facexmore nearly at right'angles, thus; permit-ting. the free upwardi swing of the-plate: without striking the inclined. face 'of the ventilator box; I may also have a widersupporting marg-inat the outer edge ofzthefbottom open frame andiin that-way the outeredge: of the tiltable plate freely moves upward and may be swung to the vertical :po'sitions atrthe'innerr side 'of -the' ventilator. box, with suitable ';means-: for holding" it in any predetermined position forv the desired :degree' of air-flow or in some *forms "I 'mayhave the outer inclined? pro tectingrplatezrof glass; or -otherwise,extendi from thebottom and curve "inward until it jo'ins with theother portion of the "ordinary; window pane, or fits into the *muntin; towhich it is glazed; This also permits the free swinging of the air-fiowcontrolplate about its'inner edge with the'outeri edge of theplate rising clear ofzthe" outer in'clined protecting face of the box. Forms or my inventionrarershown in: the" accompanyingdrawings, inW-l-richz- Fig;'I:is-a fragmentary view of a lower corner of a sashiinwhich' my ventilator device is shown embodiedin'tl'ie lower-"portion of one of the panes. H I i Fig; II'isa perspective view, on a larger scale,

' of the unit device with"all' theve'ntilator'mecha I .Fig. V is a plan; viewof the'air filter-screen;

also shown as I a separate part,

VIVI, Fig. II, showing on an enlarged scale various connections of the different members of the box with the air screen and the air-controlled cover or lid in open position. I r

Fig. VII is a fragmentary view, of a section on line VII-VII of Fig. ILshowing particularly detailsof one form of the end of the box when made of metal.

Fig. VIII is a perspective view of a'mo'dified' form in which the inclined light offset pane ex tends to the top of the opening for direct connection to the muntin.

As shown in the drawings, the complete assembled ventilating unit comprises the inclined glass member I, which is secured at its top edge to the horizontal frame member 2 of a frame which has the side members 3-3 to engage and be glazed to the muntins. A bottom member of the frame 4, provides for glazing at the bottom to the lower muntin edge, and on its inside is formed with a rib 5 which provides a ledge to hold the wire screen, 6, and, in turn, the air-flow-control plate I when the same is closed to stop ventilation. The offset 5 need not be used when the construction takes a form in which the border next to the window has the muntin in proper position to support the screen and the tiltable air-flow-control plate.

The tilting plate engages at its outer end the recess formed between the bottom edge of the inclined plate I and a rib 8 extending from the border member 5, which engages and is glazed to the lower edge of the inclined plate I. At the ends of the box, should the ends be made of metal, they can be offset at the bottom H] to form a ledge to support the wire screen mat, as well as the air-flow shutter. The ends also may be bent over to form an engaging border H to be glazed to the lateral edges of the inclined plate forming a weatherproof joint.

As shown in Fig. VIII, the inclined plate I is secured to the top border of the pane opening and the triangular box ends l2, when made of glass, are sealed at the inclined edge of member l so as to form a weatherproof joint, without the necessity of any metal binder, came or the like, thus simplifying the construction in the extreme. The glass end may also be used in like manner at l2 in the box form shown in Fig. II, etc.

When making the box ends of metal, I may provide an offset rib l3 which presses against the end edges of the tiltable shutter. This may be a separate spring member, or spring pegs may be attached to the shutter to form a yielding and friction contact, particularly when the box ends are made of glass. These serve to hold the airflow-control shutter at an angle when open, and securely closed when down against the wire screen.

It will be noted that the construction provides all the required tight-fit for the ventilating shutter, without the necessity of mechanism, such as metal hinges, but the inner edge of the glass shutter when rounded fits into the recess at the bottom of the inclined glass member, so that in effect it hinges at that point, and when closed it fits against the muntin or rib on the inside, and therefore is securely held and makes an air-tight closure for the bottom.

As shown in Fig. VI, the part of an ordinary glass pane A fits into a grooved member 2, and the same grooved member forms a pocket l5 across the entire pane, and into it is glazed the upper end of the inclined glass member. Similarly, the lower edge of the inclined fiat glass l is engaged by a longitudinal socket member 9, which can be formed with the extension 8 underneath inwardly to support the screen. U

While I prefer'to make the ventilating air-flowcontrol plate of a single fiat piece of glassyl may have border members around its edges in order to attach the handle, and also'to attach any members for friction contact in its adjusted posi-= tion. When of glass, I attach on-the inner side, for its operation, a clip which may be cemented to the glass; or more positively held by a drilled hole and pin, to which the knob or a lateral extending spring-operating clip It may be attached, A spring clip assures the yielding contact when suddenly opening the glass, so as not to break the inclined glass plate, or a rubber handle or latch can be suitably cemented to the glass. In some cases I may make the tilting control shutter of metal with suitable yielding means to positively hold it in its predetermined position, which in some cases is necessary in view of its lightness and possible displacement by the up-draft.

In all, it will be noted that my invention in volves a combination of constructions of extreme simplicity. It may be made as a box which any glazer can readily insert in the corresponding, standard size of window pane opening. I may also make it a full size of a pane as a substitute to fit directly into the muntins.

When using a fiat glass sheet, and. glass end members to the triangular box, I have a full light penetration not in any way deducting from the volume of light attained through the ordinary window pane. The same is substantially true of any modifications, but should it be desired to make some of the parts of metal the substitution for equivalent advantages may be made.

The particular advantages in the features of construction, for simplicity, cleanliness, ready assembly, and the very economical manufacture and installation, have heretofore been cited, and will hereinafter appear in my claims as important features of my invention.

Many variations may be made without departing from my invention, but what I claim and desire to secure by Letters Patent is: v

1. A window ventilator adapted for glazing in place of a portion or all of a Window pane, comprising a main frame for juxtaposition with the muntins of the window, an inclined flat glass plate glazed to one horizontal edge of said frame, vertical end members engaging said frame at the edge thereof to which said inclined fiat glass plate is glazed, and extending substantially in the same degree of inclination to said frame as does said inclined flat glass plate, said end members engaging also the ends of the inclined fiat glass plate, an auxiliary frame extending substantially at right angles to said main frame and defining a bottom opening to the space between said main frame and said inclined flat glass plate, a readily insertable air screen for the bottom opening, a tiltable control plate readily insertable and removable into said space to completely close said opening, and means for adjusting the tilting of said control plate to any desired degree and to automatically maintain it in such tilted position to permit ingress of air through the screen into the space defined by said main frame, and inclined flat glass plate.

2. A window ventilator as claimed in claim 1, in which the means for adjusting the tilting of the control plate comprises a pair of leaf springs secured at the ends thereof to the control plate in proximity to the edge of such control plate,

adapted to contact the interior surface of the inclined fiat glass plate; whereby said control plate is retained in any position of tilting, and

thereby control the flow of air through the screen.

3; AWindow ventilator adapted to be inserted in place of a pane in a'window structure, having amainframe to engage the muntins, a horizontal bottom. air flow aperture frame, glass plates 10 glazed: to said frames forming 'a protecting triangular box; and'a readily removable air-control plate, fitting over. the aperture of said horizontal frame with one offits edges freely engaging'the outer side of: the bottom frame, said air-control plate being readilyinsertable into and removable-

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