US610196A - Fireplace-heater - Google Patents

Description

Patented Sept. 6, I898.

N0. 6l0,l96.

J. B. ULDEBSHAW.

FIREPLACE HEATER.

(Application filed Dec. 11, 1597.

(No Model.)

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J OIIN B. OLDERSIIAVV, OF BALTIMORE, MARYLAND.

FIREPLACE-AH EATER.

SPECIFICATION forming part of Letters Patent No. 610,196, dated September 6, 1898. Application filed December 11, 1897. Serial No. 661,519. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN B. OLDERSHAW, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Fireplace-Heaters, of which the following is a specification.

This invention relates to improvements in fireplace stoves or heaters of that kind for which Letters Patent of the United States were granted me November 29, 1887, No. 373,846.

The invention consists of two features, and will first be described, and then pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical section of the stove on a line'taken through the front door and extending diametrically to the back. Fig. 2 is an inverted plan of the top and cross-section on the line 2 2 of Fig. 1. Fig. 3 is a diametrical crosssection of the top on the line 3 3 of Fig. 2. Fig. 4 is an inverted plan of the bottom of the stove.

The stove-front A, feed-door B, ash-drawer opening 0, air-drum D, two hot-air chambers E and F in the top, and smoke-fines f, g, and h are like the same parts in my Letters Pat ent above mentioned.

My present improvements comprise the magazine Gr without any dome. Around the exterior of this is a flange 0, having holes d for the passage upward of smoke and products of combustion to a chamber 6 above the magazine. The short smoke-flue f is in the crown or top Z of this chamber. Now one feature of my invention consists of the false top or supplemental top N of smaller diameter than the crown Z and secured just below the latter, leaving a space or passage 0 between, and is below the short smoke-flue f. The crown or top Z is of course tight and fast as a close cover on the cylinder m, and said crown here forms the bottom of the lower hotair chamber F. The false top or supplemental top N is circular, and being smaller than the crown forms an annular opening 19 for smoke and hot air, leading up from the chamber e to the space 0 and thence to the flue f.

As an entirety, the supplemental top N is circular. A part of itto wit, the two sidesis stationary; but it has a central section fixed to the crown for the end of the slideplate N toabut against when said plate is in position. By removing the central slide-plate N access may be had to the space 0 above the stationary sides, and said space may be cleaned of ash-dust and soot, and also the flue f may be cleaned. The supplemental top N may be termed a spreader,. because it serves to divert the ascending products of combustion and cause them to take to the circular wall of the heater before they can enter the space 0 and escape from the combustion-chamber. The circular wall will thereby be more intensely heated and heat will be radiated into the air of the room.

The base T of the stove below the ashdrawer has two plates to 11, one above the other, and an air-space w is between them, as shown in Figs. 1 and 4. On top and at the front the upper plate It has inlets or openings w to admit the cool air from the room into the space, and at the rear the upper plate 11, has an opening y communicating with the air-drum D,

which leads upward to the air-chamber F in the top. This space to forms a separate and distinct air-flue. Thus provision is made for a rapid circulation by the cool air of the room entering at openings at, passing through the space w in the base, then out at opening 'y up the air-drum D to top chamber F, the air being heated in this circuit, then out at the front of the stove.

Having thus described myinvention, what I claim is-- 1. In a fireplace-l1eater, the combination of a fire-pot; a combustion-chamber, e, in the upper part of the heater; an open-top magazine, Gr, below the combustion-chamber and depending into the fire-pot and having a top exterior flange, c, which separates the firepot from the combustion-chamber, said flange provided with smoke-holes, cl; an exit-flue, f, in the crown; and afalse or supplemental top smaller than saidcrown, and secured to the latter by lugs so as to form between the two a space or passage, 0, and also form around the edge of said supplemental top an annular 1o sagesaid supplemental top being composed of two stationary sides having parallel guides and a central section, N, which slides between said two sides in the guides thereon, as set forth.

In testimony whereof I affix my signature I 5 in the presence of two witnesses.

JOHN B. OLDERSHAVV. Witnesses:

CHAPIN A. FERGUSON, THos. O. BAILEY.

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