US2563272A - Ventilator - Google Patents

Description

Aug. 7, 1951 M. RACHLIN 2,563,272

' VENTILATOR Filed June 18, 1948 2 Sheets-Sheet 1 Max Rec/l4 //v,

1951 M. RACHLlN 2,563,272

VENTILATOR Filed June 18, 1948 2 Sheets-Sheet 2 Patented Aug. 7, 1951 UNITED STATES PATENT OFFICE VENTILATOR Max Rachlin, Flushing, N. Y. Application June 18, 1948, Serial No. 33,891

Claims. 1

This invention is directed to a ventilator adapt ed to be placed upon a chimney or flue that extends through the roof of a building.

It is an object of the invention to provide a ventilator of rugged construction and one that is inexpensive to manufacture, involving relatively few parts.

It is a particular object to provide a ventilator which will rotate quite freely, even in the absence of a strong wind.

A more detailed object of the invention is to provide a ventilator having a one-piece hood formed with a body of substantially conical form and having an integral wind vane extending thereabove.

A further object of the invention is to provide a bracket of such form that it may be attached to the hood at three spaced points so as to support the hood securely and in such manner that it will rotate freely.

A detailed object of the invention is to provide a spindle which is anchored at its lower portion in such a manner that the spindle is permanently maintained upon a vertical axis or, stated in other Words, the spindle and its base support are provided with definite means preventing wobbling thereof, such means insuring permanent stability of the spindle in .a predetermined axial path.

Another object of the invention is to provide a ventilator made of fewer parts than ventilators heretofore manufactured, one form of the present ventilator being made from five pieces.

Another object of the invention is to provide a ventilator with a hood, this hood being formed .by a relatively few simple bending operations, and in such manner that the vane is provided during the course of the bending operations.

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter full described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail one method and one product exemplifying my invention, such disclosed procedure and product constituting, however, but one of various applications of the principle of my invention.

In said annexed drawing:

Figure 1 is a partial central vertical section;

Figure 2 is a horizontal section on line 2-2;

Figure 3 is an elevation, looking from the right as viewed in Figure 1;

Figure 4 is an exploded view of the entire assembly of a modification of the ventilator shown in Figures 1 to 3;

Figure 5 is an elevation of the modified form.

Referring now to the drawings, and particularly Figs. 1 to 3, inclusive, it will be noted that I have provided a hood l which is substantially conical in shape and is provided with the usual opening formed by the edges 2 and 3. The lower portion of the hood is provided with a roll bead 4 to lend strength and rigidity to the hood structure and the upper portion is flattened toform a wind vane, generally indicated at 5, the vane comprising two portions 6 and '1. These portionsfi and 7 are secured together by means of rivets 8, 9 and lil, thus maintaining the vane in a straight plane and also serving to strengthen the body portion of the hood.

The hood is supported by means of a bracket of a very particular configuration. This bracket comprises a lower angularly extending part l5 which merges into a horizontal arm it, this horizontal arm being apertured to receive the spindle H, The arm [6 then extends upwardly, being connected to the-intermediate horizontall ex.- tending arm l9 by means of the vertical portion l8. The arm i9 is apertured similar to the arm l6 and merges into the angularly extending portion 20, which in turn merges into the upper horizontal arm 2 l. The upper horizontal arm is provided with a depression 22 in its lower surface so as to receive the pointed end 23 of the spindle 11. The bracket terminates in a vertically extending portion 24, the terminal part of which is twisted to form a fiat lug 25 that is received between the portions 6 and l of the wind vane 5. The rivet 9 serves to secure the bracket to the upper part of the hood and at the same time secures the portions 6 and 7 together to form the wind vane.

The angularly extending portion 29 of the bracket is secured to the hood by means of bolt 30 or any other securing means. Similarly the bolt 3| secures the lower angularly extending flange Hi to the hood I; A key 32 surrounds the spindle H to prevent upward movement of the bracket and assembled hood with respect to the spindle.

The spindle I1 is supported in such manner that wobbling or loosening is definitely prevented. This spindle is flattened to provide the lower base 33 and the flattened portion of the lower end of the spindle is pressed or otherwise deformed to provide a projection 34 which is preferably square in vertical section. The base 33 with its projection 34 is received between two cross bars 35 and ,36, the cross bar 36 being provided with a recess in which the projection 34 is received. As a consequence of forming the recess, a projection 31 is formed on the cross bar 36. The base 33 and the cross bars 35 and 36 are secured together in any desired manner, for example by a rivet 38. The ends of the cross bars are provided with flanges 39, 40, 4| and 42. These flanges are adapted to be secured to ring 50 which in turn may be secured to a chimney or flue member in the usual manner. v i v i n Referring now to the modification shown in Figures 4 and. 6, inclusive, it will be noted that this construction is somewhat similar to the pre; ferred form shown in Figures 1 and 2, inasmuch as in this construction there are only five parts; including an attaching collar, whereas the preferred form involves six parts if a Eolla'r is at tached to the flanges 39, 40, 4| Sand 42. The'hodd 50 of the modified form is slightly difierent in shape, although it may be said to be of generally coniform configuration with an integral wind vane rising from the top thereof. This vane is formed by the upper portions 52 and 53, but in this form of the invention these portions grease secured together along the base lines 54 and 55.

The hood 50 is secured to-the bracket generally indicated at 56 by means of the bolts 51 and -58, it being noted that only two bolts are requires, thus rendering assembly less difficult than is usually the case.

The bracket 56 comprises an upper hoiiaontal arm 51, an angularly extending portion ES-whii'ih contacts the interior of the hood, a lewler horizontal arm-59. The upper end of the spindle is enlarged to provide the pertion 60 so as were a as shown in'Figure-"l, is fastened below the-cross bar 64. Any number of washers may be placed on the portion 62 and above the cross bar 64 so as to regulate the height 6f the hood with respect to the cross bar. The cross harem is attached to the collar 65 and the collar 65 is attached td a chimney orother outlet l'n' the usual manner.

From the foregoing it=will be seen-that I have provided a ventilator which in one form isprovided with a relatively simple bracket-but-at the same time the hood and bracket snhetureare of such configuration that the entire assembly is extremely well-balanced. It will also be noted that the bracket is a th'r'ee point suspensiomth'us providing extreme durability andquiet operation, even in the event of high winds. I t willbe'fiifther noted that in preferred forms Fi g ll rs 1 150 3, the spindle ispermanently mounted in suchi'nanner that it will not wobble nor get out of alignment, or, stated in other words, it wn eihaiam its original vertical axial position throughact the life of the ventilator.

As for the modification-this semis-somewhat less expensive, but almost as durable as the'preferred form. In this case, only flvepiecesare necessary, exclusive of the bolts, where the ehtire ventilator. The vehnewr' of me aminetion is well-balanced arid is' obvieu'sly inexpensive, since thehood-is formederitirely-ofonepieee and is provided with a wlnd'van'e -eveh-thei gh a 1e11 of one piece.

Other forms maybe employed embodying the features of my invention instead-of the one' he're Number explained, change being made in the form or construction, provided the elements stated by any of the following claims or the equivalent of such stated elements be employed, whether produced by my preferred method or by others embodying steps equivalent to those stated in the following claims.

Ithereforeparticularly point out and distinctly claim as myinvention 4 '1. A ventilator comprising a hood, a vertical spindle, a bearing bracket and two horizontally extending cross bars, said bearing bracket comprising a continuous strip, having two horizontal being received between said horizontally extend;

ing cross bars, one of said cross bars having a depressiontherein, said projection being seated in said depression and securing means extending throughsaid cross bars and projection.

2. A ventilator as set forth in claim 1 wherein said projection and depression are square in ve lfi'eal section.

3. A ventilator comprising a hood, a vertical spindle and a bearing bracket, said hood having the upper portions thereof flattened to forma wind vane, said bracket comprising a continuous strip and including a lower horizontal arm, an intermediate horizontal arm and an upper horizontal arm, the lower armterminating in an angular-1y extendingflange with securing means extending through the same and said hood, the upper-hehze11ta-1' arm terminating in a vertical leg, the upper end of said vertical leg being twisted at right angles to the plane of said vertical leg to form a name,- said lug being received between the flattened: portions of said hood, and securing means extending through said lug and said hood portions. V I,

4. A ventilator as set forthin claim 3 wherein said-upper and intermediate arms are joined by an angularly extending portion and wherein se curing means extendthrough said last-named portion and said hoodi. V

-5. 'A-ventilator asset forth in claim i-wherein the first-named'se'euring means is located; adjacent the'lo'wer edge of said hood and wherein'the second-named securing means is located on the lower edge" of said vane and approximately centrally thereof and whereinthe last namedse curing means is located substantially intermediately er the other two. 7 H

MAX RACHLIN.

REFERENCES CITED Thefollowing references are of record in the file we: thislpatent:

UNITED STATES PATENTS U Name Date Egy Mar. 5,1907 Neiburger May 4,1909 V 1915 1927 1935 1940 Friedman 1Nov. 2611940

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