US834551A - Cowl and ventilator. - Google Patents

Description

f @Vi h1 moza Nm 834,551. v P ATENTED'CT. 30, 1906.

H. V. ACKBRT'. GOWL AND VENTILATOR.

APPLICATION FILED MAY 24, 190.6.

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attorney PATENTEDOCT 30, 1906.

H, v. ACKERT. CowL AND vENTIL-ATOR. APPLICATION TILED HAY24,1906.

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31400 [LOZ mr Nour.: pr'rxns co., wqsumarok: nrc.

` among others,

vention will proved cowl or ventilator v as the vertical tube,

while -the horizontal tube. alsoterminates unirsi) srArEs PATENT torsion.

HAROLD v.- Acknnr', or ROCHESTER, Naw YORK.

cowl'. AND VENT|LATOR Specification of Letters, Patent.

' Application nea may 24, i906. semi Np. 318.542.

Patented Oct. 30, 1906-.

To otZZ whom/t may concern;

Be it known that I, HAROLD V. Aoxnnr, of Rochester, in the countyof Monroe and Stateof New fYork, have invented a new and useful Improvement in Cowls and Ventilators, which improvement is fully set forth in the following specification' and shown in the accompanying drawings. This invention relates to certain new and useful improvements Vin chimney cowls or ventilators of that class designed to be. placed uponthe top of ya chimney for accelerating the draft and it has forits objects, to provide an improved evice of this general character having means for condensingthe wind, so as to cause it to increaseits velocity and produce an accelerateddraft upward through the chimney.

The ventilator com rises a vertically-disposed flue adapted to be arranged concentric with the upper portion of the chimney flue or passage and rotatable about the same anda horizontal tube of the same diameter the said two tubes form- Outside of the horizontal tube is a concentric band terminating in funnels,

with theI cowl removed.

Like numerals parts throughout Referring to of reference indicate like the several views. the drawings, 1 designates which theventilator is designed to b e supported.

2 designates a spindle upon which y the cowl is designed to revolve. This spindle is carried by the forked support 3, which is secured to the member 1, and its upper `end is preferably pointed, as shown, for an obvious purpose.

The cowl or ventilator is constructed as follows: 4 is a vertically-disposed tube of greater diameter than that of the flue 1 and disposed concentric therewith, so as to leave a passage 5 therearound, as seen clearly in Figs. 2 and 3. yThis vertical tube may be of any desired heigh ,but not necessarily so as to extend. a reat distance above the upper end of said u e.

At the upper end of thetube 4 is the hori` zontally-disposed tube 6, which is of substantially the same diameter as the said tube 4, but extending at as seen best in Fig. 3. This horizontal tube is practically short andvextends in .both directions from thetube ,4. At one end it terminates in the funnel or .flared mouth .7, as seen best in Fig". 3, while at the other end it has secured theretor the flared mouth or funnel 8 of the inner tube 9 l concentric therewith, the said funnel extended beyond the end. of the tube 6 and enlarged to an extent greater than the diameter of the tube 6, all as seen clearly in Fi 3. o

The spindTe 2 passes through the tube 9, as shown, and its upper end is pointed, as seen at 10, having a bearing on the plate 11, secured to the inner face of the upper portion or walll of the tube 6., while upon the under side of the tube 9 is a similar plate through which the said spindle also passes. These lates 11 and 12 prevent wear on the tubes, and the upper one serves to keep the end of funnels, the latter being a narrow rim within the funnel of the said band. The other fun-'g nel of the horizontal tube is provided with a' horizontal tube concentrically within the said horizontal tube. The upper portion revolveson al vertical spindle coaxial with the chimney Hue or passage and supported thereon. Means are provided for giving a broad bearing for the bearings of the spindle to prevent wear.` The funnels and the flaring portions soon to `be described serve to condense the wind at the front end of the ventilator where the wind enters, and slightly rarefy it where it passes out at the funnel as it leaves the device.

Other objects and advantages of the inhereinafter appear, and the novel features thereof will be specifically defined b`y\the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the nuthe spindle from wearing a hole through the merals of reference\ marked thereon, form a upper wall of the tube 6^. part of this specification, and in which- It will be noticed that there is a passage perspective view of my i in position. Fig.

Figure 1 is a for the air through the space between the tubes 6 and 9, as indicated by the arrow, lthis 2 is a substantially central vertical section space being open at one end, but closed at .the through the same. Fig. 3 is a vertical secother, 13, which closure is formed by the intion at right angles to Fig. 2. Fig. 4 is a clined portion of the funnel 8.`

the upper portion of a chimney or a flue upon right angles thereto,

perspective view of'the supporting-spindle IOO 14 is a funnel which embraces the funnel 7, without departing from the spirit of the inextending back of the latter, as seen at 15, vention or sacrificing any of its advantages. eaving a space 16 between the same, and What is claimed as new is this funnel is extended at its upper half to a 1. In a ventilator, concentric members 55 v with oppositelyisposed fiaring end poras s own, where it terminates in a funnel 17, tions, with means for condensing the wind at which extends, however, for only that porthe entrance and for rarefying it at its disseen in Figs. 1 and 3. Thus there is a pas- 2.bIn a ventilator, concentric members 0o ro sage from front to rear between the tube 6 with flaring portions atopposite ends ofthe and the .funnel 14 and the funnel 17, which ventilator, means within one end for con in Figs. 1 and 2. The rear portion of this site end for rarefying the air and enhancing bottom wall 18 flares outward, as seen at 19. an upward draft through the ffue. 65 'i 5 e passage 20, above referred to, is segmen- 3. In a ventilator, concentric members tal in shape, as seen clearly in Fig. 2. with oppositely-disposed funnels at the ends,

21' is a vane secured to the upper part of the annular space around the inner tube bethe funnel 14 for keeping the device in the ing closed at one end, and a flange at the opright position with reference to the wind and posite end of greater diameter than the space 7o 2o allowing it to be easily turned on the spindle between adjacent members as and for the as a vertical pivot by the wind. purpose specified.

he parts may be formed of galvanized 4. In aventilator, an inner tube with open iron or any other material suited to the purends, an outer tube concentric therewith, a pose. The diameter and other dimensions funnel on one end of the inner tube closing 75 25 of the device may be varied according to the the end ofthe outer tube, a funnel on tlie opuse to which the ventilator or cowl is to be posite end of the outer tube, a vertical tube put and the size ofthe flue in connection with supporting the outer tube, and a member which it is to be employed. having a funnel extended beyond the end of In use the device is placed upon the upper the funnel ofthe outer tube. 8o 3o end of the chimney or flue, as shown in Figs. 5. In a ventilator, an inner tube, an outer l, 2, and 3, firee to rotate upon the spindle as tube, funnels at opposite ends of the inner a pivot. The funnels 8 and 17 act to conl and outer tubes, a vertical tube sup )orting dense the wind, so to speak, causing it to inthe outer tube, and means at one en of the crease its velocity through the tube 9 and the ventilator for condensing vthe wind at that 8 5 3 5 passage 20, resulting vin an accelerated draft l end and means for rarefying the wind at the tube 9 and between the same and the tube 6 6. In a ventilator, inner and outer concenaround the discharge end of the tube 9. tric tubes, tunnels at opposite ends thereof, a

e conical flange 7 has its largest diameter vertical tube communicating with the space 9o 40 just a little larger than the diameter of the between said tubes, a member inclosing the annular portion connecting the unnels 14 outer tube and having funnels at opposite and 17, so that it covers the annular space beends, one of which extends for a portion only tween the said annular portion and the tube of the circumference ofthe outer tube.

6. By t 's means the wind coming through In witness whereof I have hereunto set my 95 v.45 said annular space is deflected by the said hand, this 21st day of May, 1906, in the presilange 7, tending to cause a slight vacuum, or `ence of two subscribing witnesses.

rather a rarefaction of the air, around the annular discharge-opening between the tubes HAROLD V' ACKERT 6 and '9, thus also enhancing the upward Witnesses: 5o vvdraft through the Hue 1. E. B. WHITMORE,

odifications in detail may be resorted to A. M. WHITMORE.

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