US308317A

US308317A - Chimney-cowl

Info

Publication number: US308317A
Authority: US
Publication date: 1884-11-18
Anticipated expiration: 1901-11-18

Description

No Model.)

M LUDWIG, JAMES S. & JOHN S. BARBER.

CHIMNEY GOWL.

No. 308,317. Patented Nov. 18, 1884.

WITNESSES: Z INVENTOR:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

MARTIN LUDW'IG, JAMES S. BARBER, AND JOHN S. BARBER, OF BELOIT,

' KANSAS.

CHlMNEY-COWL.

EPECIFICATION forming part of Letters Patent No. 308,317, dated November 18, 1884.

Application filed December 8, 1883. (No model.)

To all whom it may concern Be it known that we, MARTIN LUDWIG, JAMES S. BARBER, and Joan S. BARBER, of Beloit, in the county of Mitchell and State of Kansas, have invented a new and useful Improvement in Ohimney-Oowls, of which the following is a full, clear, and exact description, reference being bad to the annexed drawings, forming part of this specification.

This invention consists of the novel construction, hereinafter described and claimed, whereby a stationary chimney-cowl is adapted to prevent downward currents of air in the chimney when the wind is blowing from any direction whatever.

In the drawings, Figure 1 is a side elevation of our improved chimney-cowl. Fig. 2 is a vertical section of the same, and Fig. 3 is a bottom View.

A indicates the flue or cylinder of the cowl by which the device is to be attached to a chimney or pipe.'

Attached to the upper edge of and arranged around the cylinder A is a zigzag flange,.B, or series of bent plates forming such a flange.

and to the shoulders C of this flange is secured acap, D. The lower ends or points, E, of the flange project downward and outward from the cylinder A, forming passages F, leading up ward by the flange B and spiral folds G. This upward deflection of air-currents causes an upward draft in the chimney, which carries off the smoke, no matter from What direction the wind blows orupon what part of the cowl it strikes.

We are aware that a zigzag flange for de fleeting air-currents upward has been used in chimney-cowls in connection with a'closc cap, or one having no openings above its base, and that a conical cap formed of a spirally-arranged plate has been used in connection with an inner close cap or hollow cone having no opening above its base. These constructions we disclaim. In our invention the cap forms a chamber, J, with the cylinder or chimney, which chamber communicates directly with the chimney-flue and with the spiral opening I in the cap, and the opening I is so formed that the current of air and smoke may escape from the cap in a nearly horizontal direction, preventing any danger of the smoke being dellected down the chimney.

\Vhat we claim is- The combination of the cylinder or chimney A, the flanges B, secured around the top of said cylinder to guide currents of air upward, and the open spiral cap D, forming an open chamber, J, communicating with the flue and with the spiral opening I in the cap, said cap having blocks H arranged between its folds to form said opening, and said opening extending nearly horizontally outward through the cap, substantially as shown and described.

MARTIN LUDVVIG. JAMES S. BARBER. JOHN S. BARBER. Witnesses:

T. J. MORRIS, T. B. LAMB.