US410660A - Chimney-cowl - Google Patents

Description

(No Model.)

I. J. TURNER.

GHIMNBY GoWL.

N0. 410,660. Patented Sept. l0, 1889.

I l" OQQM@ @7X/UIMM @@MWM #ff/2% UNITED STATES PATENT OFFICE.

ISAAC JACKSON TURNER, OF PRINCETON, NEIV JERSEY.

CHlMNEY-COWL.

SPECIFICATION forming part of Letters Patent No. 410,660, dated September 10, 1889.

Application filed January 8, 1889. Serial No. 295,747. (No model.)

T0 all whom it may concern.'

Be it known that I, ISAAC JACKSON TURNER, a subject of the Queen of Great Britain, at present residing at Princeton, Mercer county, and State of New Jersey, have invented certain new and useful Improvements in Chimney Cowls or Ventilators, of which the following is a specification.

In an application for Let-ters Patent filed by me May l2, 1888, and serially numbered 273,714, I have shown and described a chimney-cowl in which improved means are employed for permitting the smoke from a chimney to have a ready exit and currents of air from the outside are prevented from entering the chimney, so as to cause a downdraft that would impede the exit of smoke' and upward currents of gas and air.

My present invention has the same general objects in view; but the details of construction of :my improved cowl or ventilator are somewhat different from those shown in my above-m entioned application, and devices are provided whereby the cowl may be opened to admit of cleaning the interior of the cowl and Y ilues and the opening at the top of the cowl may be adjusted to regulate the drafts.

In the accompanying drawings, Figure l is a vertical central section through my iinproved chimney cowl or ventilator, showing the adjusting devices in elevation. Fig. 2 is a similar view showing a modification. Fig. 3 is a perspective view, partly broken away, showing a hinged cap for the cowl; and Fig. 4 is a perspective view, partly broken away, of a modified form of cowl, showing it applied to a chimney.

The cowl shown in Fig. l consists of a cylindrical body portion or flue A, around the upper end of which is secured a cylindrical top piece or guard l5. The bottom b of the guard is formed with a downturned flange b', which fits closely the exterior of the flue A a short distance below its upper end. The outside ilange h2 of the guard extends above the upper edge of the flue.

The top plate or cap C is disk-shaped or circular, of slightly greater diameter than the guard B, and is provided with a bearing-ring c, which, when the cap is lowered sufficiently, bears against the upper edge of the iiue.

A deflector plate or disk D, of less diameter than the top plate or cap C, but of considerably greater diameter than the flue A, is supported from the cap C by hanger d. The plate D serves to deflect the smoke, air, dac., as they ascend from the flue A, and cause them to take the direction indicated by the arrows l--that is, the smoke, dac., strikes the plate D, is deflected at right angles, and then passes over the edge of the guard out under the cap C. This arrangement also prevents wind or drafts of air from the outside from passing into the chimney; for if air enters the cowl below the cap it strikes the top of the plate D and passes out at the opposite side, as indicated by arrow 2.

The cap C and the plate D are supported by a rod E, which extends vertically and centrally through the flue A and is guided and supported in brackets or cross-pieces F F', placed near the upper and lower ends of the flue. rlhe upper end of the rod Eis swiveled to the cap C and secured by nuts to the flanges e in any suitable way. The rod passes freely through the plate D and bracket F and the bracket F', which latter is provided with a female screw, with which a male screw e on the rod engages. The lower end of the rod is provided with a handle e2. By adjusting the rod the cap C and plate D may be raised and lowered to vary the opening between the top of the flue and the detlector-plate and between the top of the guard and the cap, thus regulating the draft to any desired degree, or, if desired, completely closing the cowl.4 In this inst-ance it is necessary to remove the cowl from the chimney in order to adjust the rod; but where the device is used as a Ventilator for cars, ships, dac., it may be adjusted from the inside Without removal.

In Fig. 2 I have shown devices for adjusting the rod withoutremoving the cowl. This figure also shows certain other modifications. The guard B is in this instance formed with a funnelshaped bottom l), the lower flanged edge of which fits closely around the flue A. The upper edge of the guard projects above the top of the fine, as in Fig. l. An annular defiector-flange G is formed on or secured to the exterior of the flue a short distance below its upper edge. The flange extends horizontally from the flue 01 body port-ion A to- IOO ward the flange of the guard B, but terminates before reaching it, leaving an annular opening between its outer edge and the vertical sides of the guard. The deflector D in this instance is provided with a downwardlyprojecting annular fiange D', which, when lowered sufficiently, rests on the top of the fiange G. The top plate or cap C is supported on the defiector-plate D by brackets c', which hold the cap a suitable distance away from the deflector. L-shaped guidebars g, secured to the guard B, fit into eyes g' of the deflector and permit of its being raised and lowered at will without lateral movement. The adj usting-rod E is supported at its lower end in a bracket F', in which it is free to turn, and also extends through a guidelbracket F, near the upper end of the fiue. The

upper end of the rod E is screw-threaded and extends freely through the defiector D and cap C and is pro vided with an adj listing-wheel H, which has a hub h, internalljT screw-threaded for engagement with the screw-threaded end of the rod E. The hub h is provided with an annular groove h', into which fits loosely a flan ged plate I, secured to the cap C, so that as the wheel is raised and lowered the cap C will be correspondingly moved. By this arrangement the cowl may be adjusted from the outside without removing it from the chimney. The course of the smoke, duc., from the chimney is indicated by arrows l. The course of outside currents entering the cowl is indicated by arrows 2. These currents, it will be observed, pass under the cap and over the top of the defiector.

In Fig. 3 the main body of the cowlis formed and shaped like that shown in Fig. 2-11 e., the flue or body portion A, guard B, flange G, cap C, and deflector D are the same; but the adjusting devices are dispensed with, and a bracket J is employed, which is hinged to guard B and holds the cap and defiector at a suitable elevation. J indicates a support for the cap when closed. By this arrangement the cowl may be opened to permit of the flues being cleaned, sliould it be so desired.

In Fig. 4 the cowl is made rectangular and the general con struction is considerably modified. The long flue or body portion A is dispensed with, but its place is taken by a short flue or body portion A', which extends around the edge of the fiues of the chimney. The guard B extends above the edge of the flue A', and also extends below the top of the chimney and closely fits around the top of the chimney, so as to hold the cowl in position.

' The guard B may be formed to fit any form of chimney. Alaterally-projecting fiange G connects the bottom of the flue A' with the guard. This flange rests on the top of the chimney. A deflector or flange below the top of the flue A' and above the ange G projects from the iiue A toward the guard B, but terminates before reaching it, so as to leave a passage between its outer edge and the inner side of the guard Thecap C extends over the guard B and is supported and held a suitable distance away by brackets B', secured to the edges of the cap and the guard. The defiector D ,is formed with a downwardlyprojecting fiange, as in Figs. 2 and 3, and is supported from the cap C, so as to leave a space between its upper side and the cap and between its under side and its downwardlyprojecting flange and the fiue A', the deflector-tlange G, and guard B.

A hole o may be formed in the guard B to allow water to run out.

Smoke issuing from the flues passes over the top of the flue A', down under the downwardly-projecting flange or deflector, and out over the upper edge of the guard B. Currents of air from the outside are prevented by the deliector from entering the fiues of the chimney, as above described. Outside' currents of air striking the cowl from any direction cause a strong upward draft in the fiue or ventilator.

I claim as my invention- 1. The combination, substantially as hereinbefore set forth, of the due or body portion, the guard around the upper edge of the iiue or body portion and extending above it, a fiat deflector or disk above the flue, and the imperforate top plate or cap above the defiector.

2. The combination, substantially as set forth, of the flue, the imperforate top plate or cap, and the fiat deflector below the cap and above the flue and held away from the cap.

3. The combination, substantially as hereinbefore set forth, of the flue, the guard around the upper end of the flue, the cap above the guard, and the defieotor, having a downwardly-projecting flange below the cap and above the flue.

4. The combination, substantially as hereinbefore set forth, of the fiue, the guard around the upper end of the flue, the imperforate top plate or cap above the guard, the flat defiector having a downwardly-proj ecting flange below the cap and over the flue, and the deflector-fiange G below the upper end of the flue.

5. The combination, substantially as hereinbefore set forth, of the flue, a guard around the upperA end of the flue, an adjustable cap above the guard, and an adjustable defiector 4 below the cap and within the guard.

6. The combination, substantially as hereinbefore'set forth, of the ue, the cap,`tl1e deiiector below the cap and above the fiue, the adjusting-rod, the supporting brackets, and device, substantially as described, on the rod for varyin g the distance between the deflectorV and the upper end of the flue.

7. The combination, substantially as hereinbefore set forth, of the fiue, the' guard around the upper end of the flue, the deflectorfiange around the upper end of the fiue within the guard, the deflector above the flue and having downwardly-projecting flanges, the

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cap above the deiector, the brackets which In testimony whereof I have hereunto subconn'ect the cap to the deiector, the adjustscribed my name. ing-rod, Ithe brackets in the flue in which it is mounted, the adjusting-Wheel adjustably ISAAC JACKbON lURNBR' secured to the adj Listing-rod, and the flanged Vitnesses:

plate connecting the adjusting-Wheel with D. W. MOCORD,

the cap. LLOYD B. WIGHT.-

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