US1516794A - Chimney and ventilator top - Google Patents

Description

Nov. 25, 1924. 1,516,794

G. o. SAPP CHIMNEY AND VENTILA'IOR TOP Filed June 16, 1922 mm'm I M'fnes v M. 6M 3M 6mm,

Patented Nov. 25, 1924,

arias srares relaxes GEORGE O. SAPP, OF TALLULA, ILLINOIS.

CHIMNEY AND VENTILATOB TOP.

Application filed June 16, 1922.

To all whom it may concern:

Be it known that I, GEORGE O. SAPP, a citizen of the United States, residing at Tallula, in the county of Menard and State of Illinois, have invented certain new and useful Improvements in Chimney and Ventilator Tops, of which the following is a specification.

My invention relates to improvements in chimney or ventilator cowls and has for an object to provide for free discharge of smoke and gases, and to prevent downdraft.

Another object of my invention is to prevent water from getting into the chimney or smoke stack and also to prevent wind from interfering with the draft.

Still another object of my invention is to provide a chimney cowl or ventilator, which is simple in construction, durable and inexpensive to manufacture.

Other objects and advantages of the invention will become apparent during the course of the following description.

In the accompanying drawings forming a part of this application and wherein like numerals are employed to designate like parts throughout the several views;

Figure 1 is a top plan view of the cowl when ventilator cap is omitted,

Figure 2 is a side elevation, shown partly in cross section,

Figure 3 is a plan view of the blank from which the cap is formed,

Figure 4 is a plan view of the blank from which the semi-cylindrical conductors are formed, and

Figure 5 is a plan view of the blank from which the body or sleeve is formed.

In the drawings, wherein for the purpose of illustration is shown the preferred embodiment of the invention, the numeral 10 designates a sleeve or body, formed from blank A as shown in Fig. 5, and adapted to be secured to a chimney or smoke stack of any ordinary or suitable construction. Secured to the body 10 by means of bolts or rivets 11, is a series of semi-cylindrical conductors 12, formed from'a single blank B. These conductors extend beyond the top of the body 10 and terminate in scallops 13. The blank 0 in Fig. 3 is made into cap 14, having its edge turned down, so as to form Serial No. 568,787.

a peripheral flange 15. The cap is mounted by means of bolts or rivets 16, passing through the peripheral flange 15 of the cap, and the portion 17 lying between each of the semi-cylindrical conductors, at a point below the scallops 13 leaving a substantial space 18 between the cap 14: and the body 10.

If it is desired a second conical cap 19 may be used. This cap should be large enough to cover over the conductors and is riveted or bolted to the top of them.

Thus in use, the conductors are of suitable size to afford a free passage of gas and smoke in any kind of weather. In windy weather, assuming the wind to be blowing as indicated by the arrow H, in Fig. 2, the wind blowing over and around the scallop top of the conductor creates a vacuum and draws the smoke upward as indicated by arrow J. The. wind will also be caught by the scalloped conductor on the opposite side and blow down through the conductor past the top of the smoke pipe, and carry the smoke and gas out of the bottom of the conductor as indicated by the arrows K and L. The cowl will operate satisfactorily regardless of the direction of the wind, because there is a suflicient number of conductors to catch the wind. A second cap mounted on top of the scallops will make the cow] an efficient ventilator, which is rain and stormproof.

From the foregoing description taken in connection with the accompanying drawings, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains and while I have described the principal of operation of the invention together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and such changes may be made as are within the scope of the claimed invention.

Having thus fully described my invention, I claim.

In a chimney cowl, a cylindrical body, a seat bent to provide a plurality of seml-cylindrical smoke conductors provided with an upper scalloped edge, the lower portlon of said sheet fixed to the upper portion of said cylindrical body whereby the conducsheet thereby being disposed a distance tors extend above the body, a conical shaped above the first cap. 10 cap mounted on the inside of the sheet In testimony whereof I aflix my signature forming the conductors so as to be disposed in presence of two Witnesses.

a distance above the upper end of the eylin- GEORGE O. SAPP.

drical body, and a second conical shaped Witnesses: cap mounted on the upper ends of the scal- HENRY STUMPER, 10p formed on the scalloped edge of the ST LLA O. RANDALL.

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