US617657A - Stove or furnace - Google Patents

Stove or furnace Download PDF

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US617657A
US617657A US617657DA US617657A US 617657 A US617657 A US 617657A US 617657D A US617657D A US 617657DA US 617657 A US617657 A US 617657A
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stove
chamber
grate
fuel
fire
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B5/00Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/04Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves the air or gas passing downwards through the bottom of the stove of fire grate

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  • This invention relates to stoves and furnaces; and it consists in the construction and arrangement of parts hereinafter fully set forth, and pointed out particularly in the claims.
  • the objects of the invention are to provide a magazine-feed to supply fuel to the fire, to protect said fuel from the intense heat of the fire until it reaches the fire-pot proper, to providemeans for relieving the grate from ashes and for presenting fresh fuel to the fire by a simple rotation of said grate, to provide for maintaining a rapid circulation of air through the heating-chamber of the stove and a discharge of heated air into the room or into the heat-conveying pipes, at the same time drawing the cold air from the floor when the device is used in a stove, and to provide means whereby the gases liberated from the burning coal are consumed as well as a great portion of the smoke or visible products of combustion.
  • FIG. 1 is a vertical central section through a stove or heating apparatus embodying my invention.
  • Fig. 2 is a horizontal section, as on line 2 2 of Fig. 1.
  • Fig. 3 is an inverted plan of the bottom of the stove.
  • Fig. 4; is a horizontal section, as on line 4 e of Fig. 1.
  • A designates the body of the stove, which may be of any desired shape, but which is herein shown as being of a cylindrical body, oval in form. Within this body is a sinuous dividing-partition B, which separates the interior of said body horizontally.
  • This partition extends from the inner wall of the stove at a suitable pointabove the fire-box and curves inward and downward, as at a, to a point some distance above the grate, where a return-bend is made therein, as at a, from which point said partition extends upward parallel to the wall aand curving inward from all sides unites in the arch or dome 1), thereby forming a circular magazine-chamber O between the outer wall a of said partition and the wall of the stove and a combustion-ch amberD within the center of the stove, both of which chambers communicate with the fire-space, also forming in the upper portion of the stove a hot-air chamber E, having a circular depending portion 6, which surrounds the base of said combustion-chamber.
  • a suitable base F adapted to contain the ash-pan F and provided with the draft-openings d.
  • Crossing the center of this base is a horizontal rod G, which is suitably attached at its ends thereto and provided at or near its longitudinal center with a vertically-extending pintle c, adapted to form a journal.
  • H designates a circular grate which fits within the bottom of the stove and is provided with a central socket f, which receives the pintle c and forms a pivot or bearing, upon which said grate rotates.
  • a cogged ring it, which is adapted to be engaged by abeveled pinion h, mounted on a short shaft I, journaled in the base of the stove and adapted to receive on its outer end a crank I, by means of which said shaft is rotated and said grate revolved.
  • a series of conical projections J Formed integral with the grate H and mounted upon the upper face thereof near its outer edge is a series of conical projections J, having a semicircular base which curves inward to the line of openings through said grate.
  • the outer faces of these conical projections or bodies J are curved concentric with the wall of the stove, which is recessed, as at g, to receive said conical bodies, so that the apexes thereof shall stand within the line of the inner face of the wall of said stove to pre vent a wedging of the fuel between said conical bodies and the stovenvall.
  • the fuel is supplied to the magazine-chamber 0 through the inwardly-swin gin g doors K which open through the wall of the stove, and of which there may be three or more, as shown in Fig. 2. It is necessary to have a sufficient number of these fuel-doors to enable the fuel to be evenly distributed within the magazinechamber, so that it shall form a solid circular body within said chamber, as shown at L in Fig. 1.
  • the lower end of the magazine-chamber C is open, as shown, and communicates. with the grate and fire-pot, so that the fuel contained therein is constantly supplied to the fire which is burning upon said grate.
  • the rotary grate With its conical projections J, is employed.
  • the rotation of said grate through the medium of the crank I will cause said conical projections to engage the unconsumed fuel lying between them and in advance of the direction of their travel and force said fuel inward, the space in the wake of said traveling projections being occupied by fresh fuel from above, which drops down after the passage of said conical bodies, whereby the fuel is crowded in toward the center of the grate and caused to heap up thereon to a line approximate the lower bends a of the sinuous partition B, insuring at all times the presence in the fire-pot of a sufficient amount of live fuel to maintain a strong fire, while by the rotation of said grate in the operation of crowding inward the unconsumed fuel as described the ashes are caused to fall through said grate into the ash-pan, keeping said grate free and insuring a sufficient supply of air to amply support combustion.
  • M designates a series of pipes which pass through the base of the stove and whose upper ends are provided with a right-angled bend which extends through the fuel-magazine and communicates with the interior of the heating-chamber of the stove at the bottom of the depending portion 6 thereof, whereby provision is made for the passage of a current of cold air, which is drawn from the floor into the heating-chamber, in which it is quickly and intensely heated and from which it passes through the service-pipe N, through which pipes the heated air may be conveyed to any desired point where the device is serving as a furnace, the direction taken by said air in its passage through said chamber being inclicated by feathered arrows in Fig 1.
  • the pipes N leading from the heating-chamber may be short nipples, from which the heated air discharges into the room.
  • the flue-pipe O which carries away the products of combustion, communicates with the upper portion of the combustion-chamber D, as clearly shown in Fig. 1.
  • the return-bend ct of the dividing-parti tion which forms the lower wall of the heating-chamber stands adjacent to the fire within the fire-box, and therefore this portion of said wall becomes intensely heated.
  • the temperature of said wall is somewhat reduced by the discharge of the cold-air pipes into the lower portion of said chamber at this point, whereby excessive heating of said wall is obviated and at the same time the advantage is obtained of the discharge of the coldair currents into theheating-chamber at the point of the highest temperature.
  • the coal burns strongly in the center immediately above the grate l-I, while the fuel is supplied from around the sides, the point of strongest combustion being through the center of the fire-pot, which is directly in line with the combustion-chamber D. Therefore the smoke and gases liberated from the coal before reaching the flue must pass over or through the fire and into the combustionchamber, in which passage they are nearly or quite consumed, thereby reducing the emission of smoke to a minimum and utilizing all of the products of the fuel for the generation of heat.
  • the lower draft-openings in the stove may be closed and the draft-openings m in the fuel-doors K may be opened, so that the air-draft which supplies combustion will be compelled to pass downward through the fuel-chamber, thereby carrying into the fire any gas which may have accumulated in said chamber and preventing its escape into the room.
  • the sinuous dividing-partition B forming, as it does, a portion of the heating-chamber e between the combustion-chamber and magazine-chamber, said magazine-chamber is protected from the direct heat of the fire and the cooking of the coal in the magazine is obviated.
  • Opening through one side of the stove is a passage-way P, which communicates with the combustion-chamber and which is closed by the door B. This opening affords access to the interior of the combustion-chamber and the fire-pot.
  • the combination of the body of the stove, the dividing-partition therein forming within the stove an outer annular magazine-chamber located around its inner wall, and an inner combustion-chamber centrally located with respect to said magazine, the grate below said magazine and said combustion-chamber and means for forcing the fuel inward to said combustion-chamber.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)

Description

9 9 m 1 n a 1 d e t n e t a P N o s m B 0 Dn F 7 5 j n 6 0 N STOVE 0R FURNACE.
(Application filed July 12, 1897.)
(No Model.)
WITNESSES 1 By fliiorneys m: Noam: PEYERS co, PHOTO-LITHQ, wxsumarov, n c
'the county of Genesee, State of Michigan,
UNTTED STATES PATENT Erica.
EDGAR D. KENNEDY, OF DETROIT, AND BERNARD J. STURN,
FENTON, MICHIGAN.
STOVE OR FURNACE.
SPECIFICATION forming part of Letters Patent No. 617,557, dated January 10, 1899.
Application filed July 12,1897. Serial No. 644,260. (No model.)
To (ti/Z whom it may concern:
Be it known that I, FRANK ROBINSON, a citi zen of the United States, residing at Flint, in
have invented certain new and useful Improvements in Stoves or Furnaces; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.
This invention relates to stoves and furnaces; and it consists in the construction and arrangement of parts hereinafter fully set forth, and pointed out particularly in the claims.
The objects of the invention are to provide a magazine-feed to supply fuel to the fire, to protect said fuel from the intense heat of the fire until it reaches the fire-pot proper, to providemeans for relieving the grate from ashes and for presenting fresh fuel to the fire by a simple rotation of said grate, to provide for maintaining a rapid circulation of air through the heating-chamber of the stove and a discharge of heated air into the room or into the heat-conveying pipes, at the same time drawing the cold air from the floor when the device is used in a stove, and to provide means whereby the gases liberated from the burning coal are consumed as well as a great portion of the smoke or visible products of combustion. These objects are attained by the construction illustrated in the accompanying drawings, in which- Figure l is a vertical central section through a stove or heating apparatus embodying my invention. Fig. 2 is a horizontal section, as on line 2 2 of Fig. 1. Fig. 3 is an inverted plan of the bottom of the stove. Fig. 4; is a horizontal section, as on line 4 e of Fig. 1.
Referring to the letters of reference, A designates the body of the stove, which may be of any desired shape, but which is herein shown as being of a cylindrical body, oval in form. Within this body is a sinuous dividing-partition B, which separates the interior of said body horizontally. This partition extends from the inner wall of the stove at a suitable pointabove the fire-box and curves inward and downward, as at a, to a point some distance above the grate, where a return-bend is made therein, as at a, from which point said partition extends upward parallel to the wall aand curving inward from all sides unites in the arch or dome 1), thereby forming a circular magazine-chamber O between the outer wall a of said partition and the wall of the stove and a combustion-ch amberD within the center of the stove, both of which chambers communicate with the fire-space, also forming in the upper portion of the stove a hot-air chamber E, having a circular depending portion 6, which surrounds the base of said combustion-chamber. Below the body of the stove is a suitable base F, adapted to contain the ash-pan F and provided with the draft-openings d. Crossing the center of this base is a horizontal rod G, which is suitably attached at its ends thereto and provided at or near its longitudinal center with a vertically-extending pintle c, adapted to form a journal.
H designates a circular grate which fits within the bottom of the stove and is provided with a central socket f, which receives the pintle c and forms a pivot or bearing, upon which said grate rotates. Upon the under face of said grate is a cogged ring it, which is adapted to be engaged by abeveled pinion h, mounted on a short shaft I, journaled in the base of the stove and adapted to receive on its outer end a crank I, by means of which said shaft is rotated and said grate revolved.
Formed integral with the grate H and mounted upon the upper face thereof near its outer edge is a series of conical projections J, having a semicircular base which curves inward to the line of openings through said grate. The outer faces of these conical projections or bodies J are curved concentric with the wall of the stove, which is recessed, as at g, to receive said conical bodies, so that the apexes thereof shall stand within the line of the inner face of the wall of said stove to pre vent a wedging of the fuel between said conical bodies and the stovenvall.
The fuel is supplied to the magazine-chamber 0 through the inwardly-swin gin g doors K which open through the wall of the stove, and of which there may be three or more, as shown in Fig. 2. It is necessary to have a sufficient number of these fuel-doors to enable the fuel to be evenly distributed within the magazinechamber, so that it shall form a solid circular body within said chamber, as shown at L in Fig. 1. The lower end of the magazine-chamber C is open, as shown, and communicates. with the grate and fire-pot, so that the fuel contained therein is constantly supplied to the fire which is burning upon said grate.
To provide for removing the ashes of the consumed fuel and for providing fresh fuel to the fire as required, the rotary grate, with its conical projections J, is employed. The rotation of said grate through the medium of the crank I will cause said conical projections to engage the unconsumed fuel lying between them and in advance of the direction of their travel and force said fuel inward, the space in the wake of said traveling projections being occupied by fresh fuel from above, which drops down after the passage of said conical bodies, whereby the fuel is crowded in toward the center of the grate and caused to heap up thereon to a line approximate the lower bends a of the sinuous partition B, insuring at all times the presence in the fire-pot of a sufficient amount of live fuel to maintain a strong fire, while by the rotation of said grate in the operation of crowding inward the unconsumed fuel as described the ashes are caused to fall through said grate into the ash-pan, keeping said grate free and insuring a sufficient supply of air to amply support combustion.
M designates a series of pipes which pass through the base of the stove and whose upper ends are provided with a right-angled bend which extends through the fuel-magazine and communicates with the interior of the heating-chamber of the stove at the bottom of the depending portion 6 thereof, whereby provision is made for the passage of a current of cold air, which is drawn from the floor into the heating-chamber, in which it is quickly and intensely heated and from which it passes through the service-pipe N, through which pipes the heated air may be conveyed to any desired point where the device is serving as a furnace, the direction taken by said air in its passage through said chamber being inclicated by feathered arrows in Fig 1. When the device is serving as a stove, the pipes N leading from the heating-chamber may be short nipples, from which the heated air discharges into the room. By this arrangement it will be observed that a rapid circulation of air is maintained, the cold air being drawn from the floor, passed through the heatingchamber, and discharged into the room.
The flue-pipe O, which carries away the products of combustion, communicates with the upper portion of the combustion-chamber D, as clearly shown in Fig. 1.
The return-bend ct of the dividing-parti tion which forms the lower wall of the heating-chamber stands adjacent to the fire within the fire-box, and therefore this portion of said wall becomes intensely heated. The temperature of said wall, however, is somewhat reduced by the discharge of the cold-air pipes into the lower portion of said chamber at this point, whereby excessive heating of said wall is obviated and at the same time the advantage is obtained of the discharge of the coldair currents into theheating-chamber at the point of the highest temperature.
As will be seen on referring to Fig. 1, the coal burns strongly in the center immediately above the grate l-I, while the fuel is supplied from around the sides, the point of strongest combustion being through the center of the fire-pot, which is directly in line with the combustion-chamber D. Therefore the smoke and gases liberated from the coal before reaching the flue must pass over or through the fire and into the combustionchamber, in which passage they are nearly or quite consumed, thereby reducing the emission of smoke to a minimum and utilizing all of the products of the fuel for the generation of heat.
lVhen the fire shall have attained sufficient headway, the lower draft-openings in the stove may be closed and the draft-openings m in the fuel-doors K may be opened, so that the air-draft which supplies combustion will be compelled to pass downward through the fuel-chamber, thereby carrying into the fire any gas which may have accumulated in said chamber and preventing its escape into the room. It will also be seen that by reason of the sinuous dividing-partition B, forming, as it does, a portion of the heating-chamber e between the combustion-chamber and magazine-chamber, said magazine-chamber is protected from the direct heat of the fire and the cooking of the coal in the magazine is obviated.
Opening through one side of the stove is a passage-way P, which communicates with the combustion-chamber and which is closed by the door B. This opening affords access to the interior of the combustion-chamber and the fire-pot.
Having thus fully set forth my invention, what I claim as new, and desire to secure by Letters Patent, is
1. In a stove or furnace, the combination of the body of the stove, the dividing-partition therein forming an outer annular magazinechamber and an inner combustion-chamber centrally located with respect to said magazine, the rotary grate carrying the conical bodies which project inwardly from the wall of the stove below said magazine whereby by the rotation of the grate the fuel is forced in ICC ward thereon and means for rotating said grate.
2. In a stove, the combination with the r0.- tary grate carrying the inwardly-projecting bodies which are mounted upon the margin of said grate, the annular magazine-chamber located around the wall of the stove adapted to feed fuel onto the outer margin of said grate, the combustion-chamber located centrally within said magazine-chamber, and means for rotating said grate whereby the fuel may be forced inward into the combustion-chamber to supply the fire at the center of the grate.
3. In a stove, the combination of the body of the stove, the dividing-partition therein forming within the stove an outer annular magazine-chamber located around its inner wall, and an inner combustion-chamber centrally located with respect to said magazine, the grate below said magazine and said combustion-chamber and means for forcing the fuel inward to said combustion-chamber.
In testimony whereof I affix my signature in presence of two witnesses.
FRANK ROBINSON.
Witnesses:
DAVID A. CLARK, LESTER H. HENDERSON.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4858711A (en) * 1971-11-22 1973-08-17
US5839375A (en) * 1996-04-02 1998-11-24 Kimberlin; John R. Apparatus for burning organic material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4858711A (en) * 1971-11-22 1973-08-17
US5839375A (en) * 1996-04-02 1998-11-24 Kimberlin; John R. Apparatus for burning organic material

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