US82497A

US82497A - currier

Info

Publication number: US82497A
Authority: US
Publication date: 1868-09-29
Anticipated expiration: 1885-09-29

Description

-J J. CURRIER.

' Chimney Cow 'No. 82,497. I Patented Sept. 29, 1868..

N. PETERS, FHOTO-LITHOGRAPHER, WASHINGTON, D C.

JOHN J. GUERIER, 0 F GLOUCESTER, MASSACHUSETTS.

Letters Patent No. 82,497, dated September 29, 1868.

IMPROVEMENT IN CHIMNEY-BOWLS.

filly: Stlgshnle rtfrmh in it time Esters 33mm in making part at the 2mm.

TO ALL PERSONS TO WHOM THESE PRESENTS MAY'COME:

Be it known that I, JoI IN J. OURRIER, of Gloucester,in the county of Essex, and State of Massachusetts, have :nvent'ed a new and useful Ventilator or Chimney-Cap; and I do hereby declare the same to be fully described in the following specification, and represented in theaecompanying drawings, of which- Figure-1 is a side elevz tion, and

Figure 2 a vertical section of it.

In such drawings, A denotes a conduit or tube, open at each end, and having a hollow conical frustum, B,

extended downward from its upper end, and arranged concentrically with respect to the said tube, the said frustutn, at its smaller base, being fastened to the tube A, and corresponding in diamcter with the top of the said tube, -Abovc, and concentric with the said frustum B, is another hollow conic frustum,'C,there being'a space, 0, between thc two, entirely around the frustum B. The said frusturn C is open at its upper end, as shown at a, and above the said opening a horizontal disk or cover, E, is arranged, it being supported by a series of posts or rods, 11, extending up from the frustuin O. Y

At its larger base or lower edge the frustum G is united to the larger base of another such frustum, D, which is inverted, extends below the frustum G, and encompasses the tube A, and at its lower end has a diameter larger than that of the tuhe'A, in order that there may be an annular opening or passage, 0, between the lower edge of the fr'ustum D and the outer surface of the tube. V g I The slope of the side of each frustum I generally arrange at an angleof forty-five degrees with: the axis of the tube. I

Without the frustum or guard 13, arranged with respect to thetube A, the frusta G D, and the cover-plate E, arrangcd together asdcscribed, it frequently happens that a current oi wind, while passing across or through theflventilator, will beso met by a counter-current, induced through the opening 0, as to arrest the upwardcurrent through the tube, and frequently directit downward, so as to cause the chimney'on which the, cap or ventilator may be placed, to discharge smoke into the room from which its flue may proceed. Thc whole combination and arrangement of frusta with the tube and the cover E are found to operate perfectly, and whatever mafbe the direction of the wind upon 'the ventilator, no reversal of the upward currenbof smoke or air, that may be passing up the tube, can or will take place. i

After passing lip through the pipe A, the smoke will next rush through the openi-ng'a, and be discharged against the plate E, which will deflect it laterally into the atmosphere, and any current of wind which may strike the ventilator fromany direction, will tend to promote or increase the upward fiowage of the smoke in the tube, or its discharge"therefrom, as experiment will thoroughly demonstrate.

I make no claim to the arrangement of the cover E, and either or both of the frusta D, with the tube A, but

What I do claim as my invention, is I The combination, as well as the arrangement, of the three frusta B C 'D, the cover E, and the tube A, the

whole being connected so as 'tooperate substantially as described.

JOHN J. OURRIER.

Witnesses:

R. 11. Ever, F. P. HALE, Jr.