US128213A - Improvement in furnace smoke-consumers - Google Patents

Description

B, H. DEAR.

l Improvement n-Furnace Smoke-ConsumersAIA :y N@ 128,213, Patented :u-ne 25,1872.

WQZ//f l UNITED STATES PATENT OEEICE.

BARTON H. DEAR, OF DES MOINES, IOWA.

IMPROVEMENT IN FURNACE SMOKE-CONSUMERS.

Specication forming part of Letters Patent No. 128,213, dated June 25, 1872A; antedatcd June l5, 1872.

SPECIFICATION.

I, BARTON H. DEAR, of Des Moines, in the county of Polk and State of Iowa, have invented a Self-Operating Smoke-Consumer for Furnaces, of which the following is a specification:

My invention is a self-operating smokeconsumer for all kinds of furnaces. It consists in laying one or more conducting and distributing pipes underneath the boiler in such va manner that the pipe or pipes will conduct hot Aair and distribute it in the fire and smoke, and aid in the burning and consumption of all the gaseous and combustible material that would otherwise be carried off and wasted.

The drawing is a perspective view, showing three pipes passing from the front to the rear of the furnace and boiler, and then bending upward and returning forward again, as hereinafter described.

A A is theboiler, which may vary in dimensions. Part of the front and lower end is cut away to show the distributing-pipes. B B represent two conducting-pipes starting neai` the bottom of the wall at the rear end ofthe ash-chamber, under the grate-bars, and passing backward through the bridge-wall to the rear end of the furnace, where they are turned upward and forward and connected with distributing-pipes. These pipes may be four or fiveV inches in diameter, or may vary in size as desired, and may be contracted as they approach the distributing-pipes b b. b b are the distributing-pipes returning forward. They aresmaller in diameter than the conductingpipes, and may also vary in size as desired. They are inclined upward, and at the front end they are about four inches from the bottom of the boiler. The distance from the Athe pipes b b, and extends across from one to the other. Its distance from the fuel and regrate, and also from the bottom of the boiler, may be varied. It is perforated on its top,

and from these openings the hot air escapes and mingles with the smoke and soot and gas. The air, when it rst enters the conductingf pipes, is heated to a certain degree by the iire ward toward the furnace-fire. They are perforated like the pipe D. No smoke or soot or gas can pass over these V-shaped pipes without coming in contact with the hot air escaping from them. One or more of these may be n used, and their distances from the furnacefire and from each other may vary. The dotted lines indicate how they may be made in a curved form to perform the same function; or they may be straight. Air-chambers are provided at the front and rear ends of my distributing-pipes such as are in common use in furnaces..- Movable covers or dampers may be placed over or in the ends of the conducting-pipes B B and O in such a manner that the pipes may be partly or altogether closed wheneverdesired.

I am aware that various modes of conducting hot air for similar purposes have been in use. I claim, however, that my manner of laying self-operating pipes underneath the boiler, as set forth, to be new and economical, and greatly advantageous.

Claim.

I claim as my inventionv l A smoke-consumer for furnaces, composed of the conducting-pipes B B and O, the pipes b b and c, the distributing-pipe D,.and the V- shaped pipes H H or their equivalents, applied and operated substantially as described.

BARTON H. DEAR.

Witnesses:

Trros. HATToN, J r., TYLER SCovILLE.

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