US26631A - treadwell - Google Patents

Description

J. GL'TREADW ELL.

Stdve Ventilator.

'Patented Deb. 27, 7.859.

I wmza JOHN G. TREADWELL, OF ALBANY, NEW YORK.

srovE.

Specification of Letters PatentNo. 26,631, dated December 27, 1859.

To all whom it may concern:

Be it known that I, J NO. G. TREADWELL, of Albany, in the county of Albany and State of New York, have invented certain new and useful Improvements in Ventilating-Stoves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- T Figure 1 represents a planof a stove embracing my improvements. Fig. 2 repre sents a vertical section of the same on the line m m of Fig. 2, showing the draft and ventilating fines. i l

The nature of my invention consists in the arrangement of two flues of unequal capacity, in connection with the employment of.

two dampers by means of which said flues may be used independent of each other,the smaller one as a smoke flue, and the larger one as a ventilating flue which may be closed without orby converting it into a smoke flue,-for the purpose of regulating the heat of the stove and ventilating the room in which it is placed.

By reference to the accompanying draw:

ings my invention will be readily understood. In the present instance the stove to which my improved ventilator is attached, is arranged in such relation to the ventilating and draft flues that the draft is conducted from above the fire down below the fire box, but the fines may be arranged to communicate with the stove above the fire.

The fire box A is separated from the ash box B in the usual manner by a grate.

C represents the cast iron frameon which the cylindrical body of the stove is constrncted, between which and the fire box surrounded by it, is a space of requisite dimensions through which the draft from the fire is established in the direction of the arrow, by the communication of the fines therewith. i

The ventilating flue E is secured to the bottom of the stove and passes up through the center of the smoke pipe or draft flue, communicating with the external air through an opening in the bottom of the stove, and is provided with a slidin valve or damper 0 at this point, by means of which the draft is regulated or entirely out off.

The opening 9 in the side of the ventilating.

flue extends acrossits entire width, and isyj. 1 closed by the damper a. Through this opening the ventilating flue communicates with i the draft flue H, and when closed the space between the exterior of the ventilatingflne q and the surroundingsmoke pipe forms janl i the smoke flue around the ventilating flueisv independent draft flue. .The spaceywithin insufiicient of itself to create and establish a strong draft fromthe fire the objectof it.

being, when used independent of the yentilatingflne, only tocarry 01f theprodncts of combustion from a slow fire but when a the ventilating flue isconvertedintmthe smoke flue by 1 means of the damper em-x s ployed for that purpose the smoke flue, thus enlarged, is snflicient to carry pifthevprod! fire-and when the communication between. the twois cut off by the damper; thedraft from the fire, through the independent 4 means the heat of the stove is regulated and y t an independent ventilating draftestablished from the room which may be shut ofiwith- H i smoke flue is greatly diminished,bywhich out affecting the stove draft.

A projectinglipb is formed on the inter a ucts of combustion from a lively burning J rior of the ventilating flue which serves as a rest for the damper (a) when the ventilat I ing draft is cut off, in which caseit will be seen, the ventilating flueis converted intola draft flue. The ventilatingffluel may be opened into the draft fluewithout closingits 1 communication with the. exterior crane; I

stove, as represented in the drawings b Having thus fully described.myinvention 1 190 what I claim as new and desire to se 51 Letters Patent isi i it Arranging the dampers a," and c,withthe a. ventilating fine E, and with the" draftwflue,- in such a manner that theventiIatinggfIue j may be opened orclosed,iwhile the draftflue is either open or closed for; viceversa, the

damper a, beingmade tosubserve a double a purpose substantially as set forth; I

Witnesses: 1.

S. T. SAvAeE, pp SAMUEL G.

JNo. a: TREADWELL. ff i

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