US2232027A - Ventilator - Google Patents

Description

Feb. 18, 1941. T E. R. GUNTER 7 2,232,027

VENTILATOR Filed March 10, 1939 4 Sheets-Sheet 1 co w 0 9 \V a F a roar, 2

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lg. 0 q O a 0 000 0 o a a N EDWARD R. GUNTER Patented at; 18, 1941 I 2,232,027

UNITED STATES PATENT orr ca VENTILATOR V Edward R. Gunter, Dulmque, Iowa, assignor to William H. Klaucr, Dubuque, Iowa Application March 10, 1939, Serial No} 261,098 11 Claims. (01. 98-42).

. The invention relates to ventilators and parprovided with a cross piece which braces and ticularly to ventilators of the ridge type. supports in part the storm band of the ventilator,

The ordinary type of roof ventilator is genand the provision of means for preventing this erally cylindrical in cross section. Such'ventiframework from carrying water into the educlators for small buildings are quite effective. tion pipe. For larger buildings, however, in order to pro- Still another object of the invention is to produce proper ventilation, such large numbers of videa novel damper construction, which when these ventilators are required that the presence closed is eifective to prevent the entrance of of one is apt to interfere with the flow of air to moisture.

another. The present invention relates to a Further objects and advantages of the inven- 10 ventilator of the ridge type which is designed tion will appear more fully from the following to overcome this difficulty by covering in a sindescription, par y w en taken in conj ncgle device a large-ventilating aperture. tion with the accompanying drawings which A primary object of the invention is to proform a-part thereof. vide a ridge type of ventilator which is effective In the drawings: I 5 whatever may be the direction of the wind flow- Fig. 1 is a perspective view of a ventilator ing past it. Ridge ventilators heretofore known embodying my invention;

have been effective when the wind flows trans- Fig. 2 is a side elevation of a part of a ventiversely to the length thereof, but when thewind lator, with parts broken away; flows at an angle or parallel to the length thereof Figs. 3 and 4 are cross sections on the lines -2 such ventilators are not ordinarily effective. 3-3 and respectively 0 2: The present invention provides in such a vens- 5 and 6 a detail Views of the damper tilator upstanding .transverse dividing walls operating mechanism. which serve as b t l means for angular wi d The ventilator is intended to be applied on so as to insure proper ventilating action no matan elongated rectangular p ni 2 in a roof 4- 25 ter what may be the direction of the wind. It may b a ged at the ridge of the roof, or

Another object of the invention is to prevent at any other Suitable p It comprises a downwardly inclined winds from interfering with its pr p elements an eduction p pe 5 0f the proper action of the ventilator. Such winds the same dimensions as the opening in the roof,

.30 ordinaril h only li ht, downward l preferably an elongated rectangle in cross secbut ina long ridge ventilator this slight downtion, a cap member 3, a divider o ng a ward angle is suificient when the wind is blow- P Of the cap member, Storm bands ing longitudinally of the ventilator to introduce bailiing plates I4, lips l6 and dampers is. air into the eduction pipe and thus prevent AS will be apparent from the drawings, t e

85 ventilation. The present invention pr vid cap 8 and divider 10 form a cover for the educmeans for avoiding this difliculty. tion pipe 6 so as to prevent water from falling A further feature of the invention is that the vertically thereinto- The Storm b n s H are same means ar utilized f th tw purposes substantially semi-cylindrical in shape, or outmentioned above, namely, to provide ventilation wardly c y extend inwardly Sufficientwhatever may. be the direction of the flow of y far at the pp r, e ds, as indicated at 20, to 40 the wind and to prevent interference with venerOSS lines drawn through the upp es o tilation by downwardly inclined air currents. the eduction P p and the Outer edges of the p A furth r bj ct f th i ti id i so that the direct entrance of rain into the educthe provision of a novel means for increasing tion pipe from the sides is prevented. Howthe suction effect of a ventilator by air which ever, the upper edges 20 are at considerable dis- 45 is deflected to the bottom thereof. This is actances below the upper edge 22 of the divider l0, complished by directing such air upwardly and The lower edges 24 of the storm bands [2 outwardly within the ventilator so as to cause terminate at. substantial distances away from a rapid current, of air and thus reduce the presthe eduction pipe 6. Along the upper longi- .50 sure to withdraw air from the eduction pipe. tudinal edges of the eduction pipe 6 are pro- A further object of the invention is to provided the lips l6 extending outwardly substanvide a novel framing arrangement for a ridge tially as far as the edges 24 of the ,storm bands ventilator which is simple and yet strong. Parl2, these .lips having slight downward inclinaticularly, this involves the supporting of the cap tions. member by a framework, such framework being j From this construction it is obvious that air 65 striking below the vertical center of either storm The shaft 48 carries a segmental gear 52 meshband will be deflected downwardly between the ing with a worm 54 mounted on a shaft 56. This storm band and the roof and will enter the space shaft may be turned through a chain 58 engagbetween the storm band and the eduction pipe ing a sprocket 60 secured on the shaft. By pullunder considerable pressure. It will be deflected ing the chain in opposite directions it is evident 5 by the lip I6, and will flow at a high velocity that the damper may be opened or permitted to up along the inside of the storm band to the 'close. a space above the cap, the direction of this flow At times snow or rain may in some way enter being indicated by the arrows (Fig. 3). This beneath the cap 8. To prevent water from enhigh velocity flow of air will cause a suction tering the eduction pipe, the dampers are arwhich will increase the effectiveness of the venranged substantially to seal the same. For this tilator. purpose, the inner edges of dampers i8 have up- Spaced along the ventilator are a number of wardly turned flanges 12 which engage into optransverse baflies [4, having their upper edges posite sides of an inverted channel member 14 15, 21 located higher than the upper edges 20 of the carried by block 16 on cross members 40. The

storm bands. These plates extend from the diouter edges of dampers l8 form downwardly vider In out as far as the upper edges of the turned flanges 18 which engage over the upper storm bands, and downwardly to the cap 8. edges of eduction pipe 6.

When air flows transversely of the ventilator or Cap member 8 is provided opposite cross frame perpendicular to the length thereof these baiiles members 30 and 86 with upwardly turned edge 20 have-no effect. Howeve whenever the air flows portions 80 which prevent water from falling on at an angle, 'or even longitudinally of the venthe cross members and trickling therefrom into tilator, the baffles l4, particularly since they ex.- the eduction pipe.

tend above the storm bands, provide a series of While I have described herein one embodiment obstacles against which the wind strikes and of my invention, I wish it to be understood that 25 which thus cause low pressure areas along the I do not intend to limit myself thereby except .length of the ventilator. These low pressure within the scope of the appended claims.

areas serve, of course, to draw the air from the I claim: eduction pipe 6. Thus whatever the direction of 1. In a ventilator having an eduction pipe, a

the wind may be the ventilator will be efiective storm band arranged laterally of the eduction so to exhaust air from the building on which it is pipe, and a cap above the eduction. pipe, such applied. The -end walls 29 of the ventilator also storm band extending above the lower edge of the extend upwardly as high as the battles, so as to cap and below the upper edge of the eduction provide additional obstacles. Furthermore, even pipe, baiiie means arranged at an angle to said 5 if the wind should have a slight downward instorm band between the storm band and the cap clination, it will not enter the eduction pipe since and extending upwardly at least to the upper the bafiles M will stop its flow, and their obstadg of th st rm d and suffi i tlv h h to cle effect will produce a suction to draw air from p v e a Series Of low e u areas along the the ventilator. length of the ventilator when the wind flows ion- The various parts heretofore described are s ud na y f- 40 sup rted-by a novel type of frame, including one n a ventilator h n a du ti n pipe, a type offraming located in the same transverse Storm d arranged laterally 0f the eduction planes as the obstacle bafiles and another type P p and a p above the eduction P p $11611 intermediate such planes. The first type of Storm band extending above e lower d e o frame (Fig. 3) includes uprights 28 extending the p a d below the upp d e of the eduction 45 upwardly from opposite sides of the eduction P p Vertical baflle'means arranged t an angle pipe, on the top of which is carried the cap mem- & Said Storm hand between the storm band and her 8. A series of transverse frame members 30 the p and extending above the pp d e o are secured to the uprights 28 just below the the storm band.

cap. On the outer ends of these transverse A ridge Ventilator o p s an eduction 50 members are arcuate frame members 32 against ipe of elongated cross section, a cap above said which the storm bands of corrugated metal are eduction pipe, a storm band on one side of said secured. The lower ends of members 32 are coneduction pipe extending above the lower edge of nected by brackets 34 to the eduction pipe, while said cap member and below the upper edge of 5 their upper ends are connected by a transverse said eduction pipe, and upwardly directed baffle member 36 to each other and to the top of the means in said ventilator extending transverse to divider In. An upright 31 secured to cross memthe longitudinal axis of said eduction pipe and ber 30 serves to support the top of the divider extending upwardly at least to the upper edge In. This gives a simple and strong framing for of the storm band and sufliciently high to pro- 0 the ventilator. vide a series of low pressure areas along the The intermediate frames (Fig. 4) are comlength of the ventilator when the wind flows posed of uprights 62 secured to brackets 64 carlongitudinally thereof. ried by the eduction pipe. Cross members 66 se- A ridge Ventilator Comprising n eduction cured to the uprights support storm band supp of elongated Cross Section. a c p above said 05 ports 68 which are connected at their lower ends e ct o pi e, st m bands on oppo ite sides of to brackets 64 and at their upper ends to each Said i n pip ex ending above the lower other by member 10. edge of said cap and below the upper edge of The eduction pipe may be closed by the dampsaid eduction pipe, and vertical baiiie means exers l8 (Figs. 5 and'6) which are pivoted at 38 tending across the Space between the ppe 70 on cross pieces 40 connected to the uprights 28 edges f id torm bands transverse to the lon- 7 and are strengthened by angle irons II. The gitudinal axis of said eduction pipe, said bafile dampers are operated by links 42 connected to means extending above the upper edges of the angle irons 4| andthrough a pivoted link H to storm bands.

- a lever 46 rigid on a shaft 48. Shaft 48 is mount-- 5. A ridge ventilator comprising an eduction ed through brackets on the cross members 38. pipe of elongated substantially rectangular cross 75 section, a cap above said eduction pipe, outwardly convex storm bands on opposite sides of said eduction pipe extending above the lower edge of said cap and below the upper edge of said eduction pipe, and vertical bafile means extending across the space between the upper edges of said storm bands transverse to the longitudinal axis of said eduction pipe, said baffle means compris ing plates extending above the upper edges of the storm bands.

6. A ridge ventilator comprising an eduction pipe of elongated cross section, a cap above said eduction pipe, outwardly convex storm bands on opposite sides of said eduction pipe extending above the lower edge of said cap and below the upper edge of said eduction pipe, a divider extending upward from the central portion of said cap parallel to said storm bands, and vertical plates extending across the space between the upper edges of said storm bands transverse to the longitudinal axis of said eduction pipe, saidplates extending above the upper edges of the storm bands and downwardly to said divider and 7. A ridge ventilator comprising an eduction pipe of elongated cross section, a cap above said eduction pipe, outwardly convex storm bands on opposite sides of said eduction pipe extending above the lower edge of said cap and below the upper edge of said eduction pipe, bafile means ex tending across the space between the upper edges of said storm bands transverse to the longitudinal axis of said eduction pipe, said baffle means comprising plates extending above the upper edges of the storm bands, the lower edges of said storm bands being spaced from said eduction pipe, and lips on said eduction pipe above said spaces, whereby air entering said spaces is deflected outwardly along the inner surfaces of the convex storm bands.

8. A ridge ventilator comprising an eduction pipe, frame members extending upwardly above said eduction pipe, means for connecting the frame members to the eduction pipe, a cap supported on said frame members, cross frame members supported by said upwardly extending frame members, and storm bands supported partially on said cross frame members, said storm bands extending above the lower edge of said cap and below the upper edge of said eduction pipe, means for connecting the lower ends of said storm bands to said eduction pipe, and means for connecting the upper ends-of said storm bands to each other.

9. A ridge ventilator comprising an eduction pipe, frame members secured to and extending upwardly above said eduction pipe, a cap supported on said frame members, cross frame members supported by said upwardly extending frame members, said cap having upwardly extending portions at its edges above said cross frame members and storm bands supported para tially on said cross frame members.

10. In a ridge ventilator, a pivoted longitudinally extending damper member having along its inner edge an upwardly directed flange, and a longitudinally extending inverted channel member, said flange fitting within said channel member when the damper is in closed position.

11. In a ridge ventilator, an eductionpipe, pivoted dampers, the inner edges of said dampers having upwardly directed flanges thereon, an inverted channel member, the outer edges of said dampers having downwardly turned flanges, the inner flanges engaging in said channel member and the outer flanges engaging the outside of the eduction pipe when the damper is in closed position.

EDWARD R. GUN'I'ER.

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