US173129A

US173129A - Improvement in cold-air ducts for hot-air furnaces

Info

Publication number: US173129A
Authority: US
Publication date: 1876-02-08
Anticipated expiration: 1893-02-08

Description

N. N. MANN. GOLD-AIN-DUcTs'FONHOT-AINFUNNAcEs. No.173,1z9.

Patented Feb. 8, 1876.

l 12 van 207'.-

NJETES. PHOTO-UTMOGRAPHER, WASHINGTON. 11C.

- the original feature of this invention.

UNITED STATES NEWTON M. MANN, OF ROCHESTER, NEW YORK. Y

PATENT OFFICE.

IMPROVEMENT IN coLD-AIR Duc'rs FoR Hor-AIR FuRNAcEs.

Specification forming part of Letters Patent No. 173,129, dated February 8, 1876; application led November 29,1875.

To all whom t mag/concern:

Be it known that I, NEWTON M. MANN, of Rochester, county of Monroe, State of New York, have invented Cold-Air Duets of Heaters and Furnaces, of which the following is a specification: A

The device referred to is to be known as The King of the Winds, an automatic reg nlator of the drafts of furnaces and other heaters.

The opening A represents the mouth of the duct, at which the air is ordinarily received; B, the continuation of the duct to the furnace.

It is commonly found that when the wind blows from a direction opposite that in which the mouth of the duct is turned the action of the furnace is more or less reversed and hot,air drawn out through the duct. The prompt arrest of this tendency by a self-acting valve, which closes the outward passage and at the same time opens another passage, through which the furnace can be Supplied with air, is This valve E is hung on pivots near its center, so that, when at rest, it just drops of its own weight and forms a part of the side of the duct. The half toward the mouth of theduct serves only for equipoise, and the duct behind this part is ceiled up. The outward suction 0f a wind blowing from a direction opposite that to which the4 mouth of the duct is turned draws this valve'up so as to entirely cut off the outward passage G, and, by the same movement, opens another passage,` F, through which the supply of air maybe freely kept up to the fur-- To complete the regulation of the draft in the cold-air duct the valve O is added. It is 'nearly balanced by the weight D suspended on a bent rod, and equalizes the supply of air by partially closing the duct under pressure of the wind blowing in.

The principle of this valve is not new, and the claim of originality is made only on its combination with the valve E, for the purpose j herein set forth. v

I disclaim any application of this appliance to a stove-pipe or fire-draft of any sort.

I claim as my invention--k 1. The vself-acting valve E, substantially as described, in combination with the duct B, to prevent an outwardand provide for an inward current of air when the draft of the wind is outward. v

2.v The combination of the self-acting valve E with the self-acting valve C and the ductA B, for the purpose of regulating the supply of air to the heating-chamber of furnaces, steam or other heaters, as above set forth.

NEWTON M. MANN.