US1213173A - Fireplace. - Google Patents

Description

J.' D. EVANS.

FIREPLACE.

I APPLICATlQN FILED APR-17' 916. 1,213,173. Patented Jan. 23, 1917. 2 3- j 71/ Zin xi] JAMES D. EVANS, OF MONTGOMERY, ALABAMA.

FIREPLACE.

Specification of Letters Patent.

Patented Jan. 23, 1917.

' Application filed April 17, 1916. Serial No. 91,619.

To all whom 2'25 may concern Be it known that 1, JAMES D. EVANS, a citizen of the United States of America, and a resident of Montgomery, county of Montgomery, State of Alabama, have mvented certain new and useful Improvements in Fireplaces, of which the following is a full and clear specification.

The object of this invention is to provide a simple and improved heating apparatus of the fireplace type and the invention con- -70 from the front of the fireplace.

sists of certain novel features and combination of parts hereinafter set forth.

In the drawings-Figure l is a perspective view of the front of a fireplace constructed in accordance with my; invention; Fig. 2 is a vertical central section therethrough; Fig. 3 is a vertical section on the line 3-3 of Fig. 2; and Fig. 4 is a horizontal section on the line H of Fig. 2. Fig. 5 is a detail vertical section showing a slight modification.

The front plate a of the structure is'provided with a pair of grooved guideways b in which the vertical bars a slide, these bars being connected at their upper ends by the fire door (Z and at their lower ends by the ashpit door e,these two doors being separated by a space. The upper door is adapted to close the entrance of the fire-box opening f and the lower door is adapted to close the ashpit opening 9, the parts being so proportioned that when door d is closed the door 6 will likewise be closed, Or substantially closed, and vice versa. It is preferred that the parts shall be so proportioned that the upper door may be entirely closed without entirely closing the lower door, so as to thereby leave a small draft opening under the lower edge of the lower door, while at the same time entirely closing the upper door. When the two doors are closed, the space between the doors is coincident with the imperforate part it of the front wall a this part it constituting the front wall of the basket grate i, rigidly fastened to the inner face of the wall a.-

The grate consists of a back wall and end walls of suitable skeleton structure, preferably of brick or bars. The bottom of the grate j is preferably of the tilting type and is adapted to be operated by a suitablesrod urrounding the grate is a'masonry wall Z, this wall being spacedaway from the back and end walls of the grate, so as to thereby provide ample space all around the grate for draft purposes and also to provide ample space for hot water or hot air heating ap pliances, if it be desired to use such appliances.

Arranged above the fire-box is a flue-like heating drum or chamber m through which all the products of combustion pass on their way to the chimney flue a. On suitable ledges in this flue'are placed a number of movable plates 0 which may be so arranged as to force the products of combustion to take a circuitous course through the drum, so as to thereby extract therefrom a maximum of heat. The upper end of the heat drum is adapted to close by a sliding damper 32 which is adapted to slide backwardly' into place behind the heating drum. This damper is attached at its rear edge to a chain 9 carrying av weight 7 on its depend ing end. Another chain 8 connects the damper with the upper end of the double door frame, the chain extending from the damper out through a hole in the front plate a, over pulley t and thence down to the up per edge of the top door cl, to which it is secured. \Vith this construction, it will be observed that thedamper is openedsimultaneously with the" opening of the doors and likewise it is slid to a closed position when the doors are moved to closed position. In order to operate the damper independently of the doors, and to accomplish this by the same chain 8, I attach this chain to the door (Z through the medium of a small knoblike drum a mounted rotatably upon a rigid pin 1) fastened to said door, whereby the chain maybe pulled by winding it upon the knob-like drum n and thus slide the damper back and forth without reference to the position of the door. The counter-weight r serves to pull the door to open position when the chain is unwound from the knob, and this weight also tends to counter-balance the door structure, so as to thereby render it easy of movement up and down. The damper is mounted to slide upon anti-friction rollers w or in any other manner. To hold the drum knob a from turning when the damper chain is wound thereon, I place a spring a: between the knob and the face of the door or arrange it in any other suitable manner-so that it will exert a suflicient friction on the knob to prevent the pull of the chain from turning it.

It will be observed that the back and side walls of the heating drum m are supported I vary'the arrangement for guiding and supporting and gravitatingly operating the damper without departing from the spirit of the invention; for instance, I may, as shown in Fig. 5, arrange the damper in a vertical or other position so that it will normally tend to gravitate toopen position without the necessity of employing a separate In Fig. 5 is also shown a slightly modified arrangement of the plates -or partitions 1n the drum, the plates or partitions in this figure being designated by 0. In this figure it will be seen also that the top of the heating drum is closed and the damper opening is placed in the back wall of the drum; and also that the chain 3 is carried up over the top of the heating drum, instead of through the heating drum, as in Fig. 2, and run upon suitable pulleys mounted on the upper corners of the heating drum.

It will be observed that I do not confine myself to the specific details of construction shown and illustrated, as the same may be varied without departing from the spirit of my invention as expressed in the claims.

Having thus described my invention, what Iclaimist a I 1'.. In a heating appliance of the class set forth, a fireplace front wall, a grate behind the same, said wall having an opening above and also an opening below the grate, a heating drum or flue above the grate, a damper forthis drum or flue, a pair of connected doors adapted to simultaneously close the openings in said front wall above the grate and below the same, and means connecting said door structure with the damper, whereby they may be simultaneously operated.

2. In a heating appliance of the class set forth, a fireplace front wall, a grate behind the same, said wall having an opening above and also an opening below the grate, a heating drum or flue above the grate, a damper for this drum or flue, a pair of connected doors adapted to simultaneously close the openings in said front wall above the grate and below the same, and means connecting said door structure with the damper whereby they may be simultaneously operated, said means embodying devices whereby the damper may be adjusted to closed or open position independently of the movement of the doors.

3. In a heating appliance of the class set 'ings, a heat flue or drum above the forth, a front wall, a grate behind the same, an opening being provided in the front wall above'the grate andanother opening being provided in the front wall below the grate, a pair of connected doors adapted to simultaneously open or close said openings, the

proportions of the parts being such that the- I upper openingmaybe entirely closed without entirely closing the lower or draft openl. In 'a heating appliance of the class set forth, a front wall having a pair of separated draft openings, a grate supported behind the front wall at a point between said openings, guideways on the front face of said front wall, a door structure working up and down in said guideways and consisting of a pair of vertical side bars connected by two separated doors, one adapted to cooperate with the upper opening in the front wall and the other adapted to cooperate with the lower opening in the front wall, a heat flue structure above the door structure, a damper at the upper end of this heat flue structure adapted to normally open by gravi tation, a chain connecting the damper to the upper end of the door structure whereby the damper structure tends to counterbalance the door structure and whereby also when the door structure is raised to open the draft openings the damper normally opens to a corresponding degree.

'5. In a heating appliance of the class set forth, a front wall having a pair of separated draft openings, a door structure slidably mounted on this wall and embodying a ion pair of separated doors adapted to control said openings, a grate mounted behind the front wall in a position between said 0 enoor structure, a damper at the upper end of the heat flue normally tending to open, a chain connecting the damper to the upper end of the door structure, and means whereby the effective length of this chain may be shortened or lengthened to thereby permit the damper to be operated independently of the door structure and whereby also the damper tends to counterbalance the door structure and hold it in its adjusted position.

6. In a heating appliance of the class set forth, a front wall having a door opening therein, a grate behind the front wall, a door freely vertically slidable across said opening, a heating flue above the grate, a freely slidable damper for said heating fine, and means including a chain whereby the closing of said door simultaneously closes said damper, and vice versa, said means embodying a depending weight attached to the damper and tending to open the same and to also counterbalance the door, and also devices whereby the dampermay be adjusted. I

effective length of said chain.

7. In an appliance of the class set forth, a front Wall and a grate, said front wall being provided With a door opening, a slidable door for said opening, afiue, a damper therein and means tending to close the damper, and devices connecting the door with the damper whereby when the door is closed the damper Will be closed, said devices embodying a chain and a rotatable drum or spool mounted on the door, one end of the chain being Wound upon the drum, means being provided for frictionally holding the drum against rotation, whereby the damper may be opened and closed independently of the door and whereby also the effective length 1:'- of the chain may be varied for the purpose set forth.

In testimony whereof I hereunto afiix my.

signature.

JAMES D. EVANS.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents. wsshlngton, D. 0.-

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