CA1067775A - Fireplace - Google Patents
FireplaceInfo
- Publication number
- CA1067775A CA1067775A CA253,218A CA253218A CA1067775A CA 1067775 A CA1067775 A CA 1067775A CA 253218 A CA253218 A CA 253218A CA 1067775 A CA1067775 A CA 1067775A
- Authority
- CA
- Canada
- Prior art keywords
- casing
- chamber
- slits
- partition
- horizontal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Baking, Grill, Roasting (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A generally cylindrical casing is hollow, and is supported by a base so that the axis of the casing is horizontal. A vertical partition divides the casing into a fire chamber and a smaller exhaust chamber. The smaller chamber is vented to the outside atmosphere by a chimney. The partition does not completely isolate the chambers, but enables them to be interconnected through a small gap at its bottom. Extending rearwardly along the curved portion of the casing are two oppositely disposed parallel horizontal elongated air intake slits at the level of the bottom of the partition. The major portion of the section of the casing that surrounds the fire chamber is of glass. The base can have a horizontal shallow half cylindrical shell at its top which supports the casing and a vertical hollow intake duct extending from a bottom opening in the base to the slits to feed air thereto. Alternatively, one of the slits can be defined by the gap between a hinged lid and the casing providing access to the chamber.
A generally cylindrical casing is hollow, and is supported by a base so that the axis of the casing is horizontal. A vertical partition divides the casing into a fire chamber and a smaller exhaust chamber. The smaller chamber is vented to the outside atmosphere by a chimney. The partition does not completely isolate the chambers, but enables them to be interconnected through a small gap at its bottom. Extending rearwardly along the curved portion of the casing are two oppositely disposed parallel horizontal elongated air intake slits at the level of the bottom of the partition. The major portion of the section of the casing that surrounds the fire chamber is of glass. The base can have a horizontal shallow half cylindrical shell at its top which supports the casing and a vertical hollow intake duct extending from a bottom opening in the base to the slits to feed air thereto. Alternatively, one of the slits can be defined by the gap between a hinged lid and the casing providing access to the chamber.
Description
SUMMA~Y OF THE I~~ NTION
This invention is directed toward a small fire-place that is designed to be both an eff'icient source of heat and an item of decoration. It uses a fire that is fed by two oppositely directed rotating vortexes of . ~.
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:. 106~775 ; fresh air, and that thus Rwirls around in the fire chamber of the fireplace, producing a desirable visual appearance.
-- The invention uses a generally cylindrical hollow casing that has both ends closed and iB divided into a fire chamber and a smaller exhaust chamber located behind it. A partition separates the chambers, ; but leave~ a space between its lowest edge and the casing to allow smoke to pass from the fire chamber into the ; 10 exhaust chamber. The exhaust chamber is vented to the outside atmosphere by a chimney to void the combusted gases.
The casing can rest upon, and be spaced from a horizontally elongated hollow bottom cylindrical half section which forms the top of a supporting base. The base has a hollow intake duct extending from a bottom opening in the base along the space between the section and the bottom of the casing to a pair of oppositely dispoæed horizontally elongated parallel slits in the J-casing. Alternatlvely, the casing can have a hinged door or lid which forms part of the casing and which ,, .~!,, defines a gap with the casing which forms one of the slits.
These slits, which are coplanar with a horizontal plane passing through the bottom of the partition, allow air to enter the fire chamber.
The shape of the chamber cau~es the air to be swirled ;-~: ' ' .
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around violently into two oppositely directed rotating vortexeæ, raising combustion efficiency. In use, this ~-fireplace i8 so efficient that even when the casing ~urrounding t~e ~ire chamber is constructed of glass, the glass very seldom needs cleaning. The ~ire pro-duced in the fire chamber i8 always ln violent motion, ; ~
resulting in an attractive decorative effect.
'~
BRIEF DESCRIPTION OF TB DRAWINGS
Figure 1 is a perspective drawing of the invention.
Figure 2 i8 a view along llne 2-2 of Fig. 1.
Figure 3 i~ a view along line 3-3 of Fig. 2.
Flgure 4 i6 a view similar to Fig. 2 but illustrating the air flow in more detail.
Figure 5 is a detail view illu~trating the supporting and spacer geometry employed in the ca~ing and base connections. -Figure 6 æhows a modification of the invention.
. .
- Figure 7 is a view similar to Fig. 2 but showing another modification.
Figure 8 is a view of still another modification.
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:. DETAILED DESCRIPTION OF PREFERRED ~ BODI~OENTS
;;
Referring now to Figs. 1-6, a casing with a .
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. .
:
horizontal axi~ is generally cylindrical, hollow, and has closed end~. It is divided into a fire chamber 10 and an exhaust chamber 20 by a vertical partition 30.
The cas~ng surrounding the smaller chamber 20 i~ made of metal, while most of the casing surrounding the chamber 10 16 m~de of glass. The partition has a horizontal bottom edge 40, and in the space between that bottom edge and the c~sing, the exhaust gases created . . .
in the fire chamber can paEs into the exhaust chamber.
Chamber 20 can contain houeings 300 for removable drawers ~ wherein food can be heated in the drawer6 and then removed.
A curved glass lid 50 ls hinged to the casing ~ by hinge 60 and forms part of the curved portion of the ; casing. A thln horizontal slit 70 is formed between the bottom of the lid and the bottom section ~ of the casing.
This slit extends horizontally rearwardly parallel to the ''I'''J axis of the cylinder and terminates at the point where the partition i6 located. This slit 70 ~8 locat~d in the horizontal plane that includes the bottom edge of ~ -the partition. This slit a~ explained below allows air to enter the fire chamber even when the lid is in its most fully closed po6ition. Similarly, a panel 80 identical to the lid but not hingedly attached to the casing ~uts out in the same fashion Another thin horizontal slit 90 i~ formed which is parallel to and -'~ ;' .. ~. .
. .
~: 5 identical to slit 70. However, louver 100 i8 hlngedly attached to the casing section 202 by hinge 110 and can be moved up and down, to block off or open slit 90 as needed. Both these slits have the function of allowing ~-air to pass into the fire chamber to enable fuel 120 to be combusted therein.
` The exhau~t chamber i8 vented to the out~ide atmosphere through chimney 130. Below the chimney in the exhaust chamber are three like, parallel baffle~
140 that are supported by the partition.
The bottom of the ~ire chamber i8 lined with ;
,,.
fire clay 150, and the whole device i8 supported on horizontal surface 160 by the base 170. More par- ;
i v ticularly, the base ha~ a top section in the form of a horizontally elongated hollow bottom ha~l cylinder 200 whlch supports casing section 202 and yet i8 generally i ~paced therefrom. The base has a hollow vertical duct ,~` 204 which extenas upward~ from a screened air intake ~`
opening 206 in the bottom of the duct to the shell space 208 between cylinder 200 and sectlon 202. This space ln turn connects the top end of the duct 204 to the slits 70 and 90. By this means, outside air is drawn .. ;~ 0~o upward through ~he duct 204, space ~e~ and slits 70 and 90 into the combustion chamber~ Spacer bars 210 maintain proper spacing between the section 202 and - cylinder 200.
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Fuel iæ introduced into the fire chamber, lit, and allowed to burn with the lid closed. The air iæ
drawn into the fire chamber at relatively high velocity, - because of the narrownes~ of the slitæ. The fresh air taken lnto the fire chamber generally follow8 the arrows .:
in Fig. 4, formin~ two oppositely directed swirling vortexes 180 and thus generating violent, swirling -~
flames 190. The exhaust gases then pa6s under partition 30 into the exhaust chamber, where they can exit the device through the chimney. The baffles prevent a~hes from flying out the chimney, but the amount of ashes to be dealt with is very low, on coal-wood or any other fuel, because of the extreme efficiency of the combustion process.
... . .
In use, the louver i8 ad~usted ~o aæ to get the mo~t efficient combustion. It may be opened or ;;l closed a~ needed. It has been found that the combustion in the fire chamber is 80 efficient when the louver is properly adJusted that the inside surfaces of the glass portion of the casing æeldom, , .:
if even, need cleaning. ;
As shown in Fig. 7, the lid 50 can protrude ~-slightly outward to form slit 70. The duct 204 and spacer bars 210 of Fig~ 6 can be el~minated with the casing ~ itself having a bottom hall 350 ~upported on solid '' .
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base 370. The air flow pattern follows eseentially the same pattern inside the fire box.
The embodiment shown in Fig. 8 incorporates a rectangular horizontal cooking surface 400 that i8 bisected by the chimney. Thi~ surface is formed by the top of the exhau~t chamber and can be used to cook foods ;:. which require high cooking heats.
Although the invention ha~ been de~cribed with : particular reference to the drawings, the protection ~ought is to be limited only by the terms of the claims which follow. :
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This invention is directed toward a small fire-place that is designed to be both an eff'icient source of heat and an item of decoration. It uses a fire that is fed by two oppositely directed rotating vortexes of . ~.
:`., . ~'~
"' ' .
~, ,'' . .
~,f"
~' ' ' ' ' " ' .
.
.. . .
i, A ., .
.
' ~`
'',' '''`
, ~ ' ' ' ~ ' , . . .
.
:. 106~775 ; fresh air, and that thus Rwirls around in the fire chamber of the fireplace, producing a desirable visual appearance.
-- The invention uses a generally cylindrical hollow casing that has both ends closed and iB divided into a fire chamber and a smaller exhaust chamber located behind it. A partition separates the chambers, ; but leave~ a space between its lowest edge and the casing to allow smoke to pass from the fire chamber into the ; 10 exhaust chamber. The exhaust chamber is vented to the outside atmosphere by a chimney to void the combusted gases.
The casing can rest upon, and be spaced from a horizontally elongated hollow bottom cylindrical half section which forms the top of a supporting base. The base has a hollow intake duct extending from a bottom opening in the base along the space between the section and the bottom of the casing to a pair of oppositely dispoæed horizontally elongated parallel slits in the J-casing. Alternatlvely, the casing can have a hinged door or lid which forms part of the casing and which ,, .~!,, defines a gap with the casing which forms one of the slits.
These slits, which are coplanar with a horizontal plane passing through the bottom of the partition, allow air to enter the fire chamber.
The shape of the chamber cau~es the air to be swirled ;-~: ' ' .
; . . ,, : ~067775 :.
' .:
around violently into two oppositely directed rotating vortexeæ, raising combustion efficiency. In use, this ~-fireplace i8 so efficient that even when the casing ~urrounding t~e ~ire chamber is constructed of glass, the glass very seldom needs cleaning. The ~ire pro-duced in the fire chamber i8 always ln violent motion, ; ~
resulting in an attractive decorative effect.
'~
BRIEF DESCRIPTION OF TB DRAWINGS
Figure 1 is a perspective drawing of the invention.
Figure 2 i8 a view along llne 2-2 of Fig. 1.
Figure 3 i~ a view along line 3-3 of Fig. 2.
Flgure 4 i6 a view similar to Fig. 2 but illustrating the air flow in more detail.
Figure 5 is a detail view illu~trating the supporting and spacer geometry employed in the ca~ing and base connections. -Figure 6 æhows a modification of the invention.
. .
- Figure 7 is a view similar to Fig. 2 but showing another modification.
Figure 8 is a view of still another modification.
~t ~
:. DETAILED DESCRIPTION OF PREFERRED ~ BODI~OENTS
;;
Referring now to Figs. 1-6, a casing with a .
.;~
. .
:
horizontal axi~ is generally cylindrical, hollow, and has closed end~. It is divided into a fire chamber 10 and an exhaust chamber 20 by a vertical partition 30.
The cas~ng surrounding the smaller chamber 20 i~ made of metal, while most of the casing surrounding the chamber 10 16 m~de of glass. The partition has a horizontal bottom edge 40, and in the space between that bottom edge and the c~sing, the exhaust gases created . . .
in the fire chamber can paEs into the exhaust chamber.
Chamber 20 can contain houeings 300 for removable drawers ~ wherein food can be heated in the drawer6 and then removed.
A curved glass lid 50 ls hinged to the casing ~ by hinge 60 and forms part of the curved portion of the ; casing. A thln horizontal slit 70 is formed between the bottom of the lid and the bottom section ~ of the casing.
This slit extends horizontally rearwardly parallel to the ''I'''J axis of the cylinder and terminates at the point where the partition i6 located. This slit 70 ~8 locat~d in the horizontal plane that includes the bottom edge of ~ -the partition. This slit a~ explained below allows air to enter the fire chamber even when the lid is in its most fully closed po6ition. Similarly, a panel 80 identical to the lid but not hingedly attached to the casing ~uts out in the same fashion Another thin horizontal slit 90 i~ formed which is parallel to and -'~ ;' .. ~. .
. .
~: 5 identical to slit 70. However, louver 100 i8 hlngedly attached to the casing section 202 by hinge 110 and can be moved up and down, to block off or open slit 90 as needed. Both these slits have the function of allowing ~-air to pass into the fire chamber to enable fuel 120 to be combusted therein.
` The exhau~t chamber i8 vented to the out~ide atmosphere through chimney 130. Below the chimney in the exhaust chamber are three like, parallel baffle~
140 that are supported by the partition.
The bottom of the ~ire chamber i8 lined with ;
,,.
fire clay 150, and the whole device i8 supported on horizontal surface 160 by the base 170. More par- ;
i v ticularly, the base ha~ a top section in the form of a horizontally elongated hollow bottom ha~l cylinder 200 whlch supports casing section 202 and yet i8 generally i ~paced therefrom. The base has a hollow vertical duct ,~` 204 which extenas upward~ from a screened air intake ~`
opening 206 in the bottom of the duct to the shell space 208 between cylinder 200 and sectlon 202. This space ln turn connects the top end of the duct 204 to the slits 70 and 90. By this means, outside air is drawn .. ;~ 0~o upward through ~he duct 204, space ~e~ and slits 70 and 90 into the combustion chamber~ Spacer bars 210 maintain proper spacing between the section 202 and - cylinder 200.
.', .
.
, . .. . . .
~0677~5 :~
~ 6 ~ ~
... .. ..
Fuel iæ introduced into the fire chamber, lit, and allowed to burn with the lid closed. The air iæ
drawn into the fire chamber at relatively high velocity, - because of the narrownes~ of the slitæ. The fresh air taken lnto the fire chamber generally follow8 the arrows .:
in Fig. 4, formin~ two oppositely directed swirling vortexes 180 and thus generating violent, swirling -~
flames 190. The exhaust gases then pa6s under partition 30 into the exhaust chamber, where they can exit the device through the chimney. The baffles prevent a~hes from flying out the chimney, but the amount of ashes to be dealt with is very low, on coal-wood or any other fuel, because of the extreme efficiency of the combustion process.
... . .
In use, the louver i8 ad~usted ~o aæ to get the mo~t efficient combustion. It may be opened or ;;l closed a~ needed. It has been found that the combustion in the fire chamber is 80 efficient when the louver is properly adJusted that the inside surfaces of the glass portion of the casing æeldom, , .:
if even, need cleaning. ;
As shown in Fig. 7, the lid 50 can protrude ~-slightly outward to form slit 70. The duct 204 and spacer bars 210 of Fig~ 6 can be el~minated with the casing ~ itself having a bottom hall 350 ~upported on solid '' .
..
~; ~.,.
:..
~ : :
~067'7'75 . .
.. 7 .
.
base 370. The air flow pattern follows eseentially the same pattern inside the fire box.
The embodiment shown in Fig. 8 incorporates a rectangular horizontal cooking surface 400 that i8 bisected by the chimney. Thi~ surface is formed by the top of the exhau~t chamber and can be used to cook foods ;:. which require high cooking heats.
Although the invention ha~ been de~cribed with : particular reference to the drawings, the protection ~ought is to be limited only by the terms of the claims which follow. :
."., .
.
.
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,...................................................................... ..
....................................................................... .
.. . .
.",.................................................................... ...
".`'.:' :' . ,~ ;
.,`
,.
. ..................................................................... -'~
' ' ;' ', ' ' .-~. . ' ' ' . . t ~ :
~ . ' ' .' ~ ,, ' . ' ' . ..
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.
:
Claims (13)
1. A fireplace, comprising:
a hollow, generally cylindrical casing with horizontal axis and with closed ends and having two parallel elongated horizontal air intake slits parallel to the axis, said slits extending rearwardly along the curved surface of the casing to an end point inter-mediate the ends of the casing; and a base having a top disposed horizontally elongated hollow bottom cylindrical half section pro-vided with means for receiving and supporting the bottom portion of said casing, thereby forming a space between said section and said bottom portion which communicates with said slits, said base having a hollow vertical air intake duct connected between a bottom air intake opening in the base and said space to feed air from the outside of the base into the interior of the casing, said base supporting the casing upon a horizontal surface.
a hollow, generally cylindrical casing with horizontal axis and with closed ends and having two parallel elongated horizontal air intake slits parallel to the axis, said slits extending rearwardly along the curved surface of the casing to an end point inter-mediate the ends of the casing; and a base having a top disposed horizontally elongated hollow bottom cylindrical half section pro-vided with means for receiving and supporting the bottom portion of said casing, thereby forming a space between said section and said bottom portion which communicates with said slits, said base having a hollow vertical air intake duct connected between a bottom air intake opening in the base and said space to feed air from the outside of the base into the interior of the casing, said base supporting the casing upon a horizontal surface.
2. The fireplace of claim 1 further including:
a vertical partition placed at the end-point and dividing the casing into a fire chamber and an exhaust chamber, the partition restricting all communication between the chambers to an opening between the casing and the bottom of the partition.
a vertical partition placed at the end-point and dividing the casing into a fire chamber and an exhaust chamber, the partition restricting all communication between the chambers to an opening between the casing and the bottom of the partition.
3. The fireplace of claim 2 further including:
a chimney venting the exhaust chamber to the outside atmosphere.
a chimney venting the exhaust chamber to the outside atmosphere.
4. The fireplace of claim 3 wherein the two slits define a horizontal plane containing the bottom edge of the partition.
5. The fireplace of claim 4 wherein the exhaust chamber supports at least one horizontal baffle located below the chimney.
6. The fireplace of claim 5 wherein the major portion of the section of the casing that surrounds the fire chamber is constructed of glass.
7. A fireplace, comprising:
a hollow, generally cylindrical casing with horizontal axis and with closed ends and having two parallel elongated air intake slits parallel to the axis is extending rearwardly along the curved surface of the casing to an endpoint intermediate the ends of the casing, the slits allowing air to be taken into the interior of the casing;
a vertical partition placed at the endpoint and dividing the casing into a fire chamber and an exhaust chamber, the partition restricting all communication between the chambers to an opening between the casing and the bottom of the partition;
a base supporting the casing upon a horizontal surface; and a chimney venting the exhaust chamber to the outside atmosphere.
a hollow, generally cylindrical casing with horizontal axis and with closed ends and having two parallel elongated air intake slits parallel to the axis is extending rearwardly along the curved surface of the casing to an endpoint intermediate the ends of the casing, the slits allowing air to be taken into the interior of the casing;
a vertical partition placed at the endpoint and dividing the casing into a fire chamber and an exhaust chamber, the partition restricting all communication between the chambers to an opening between the casing and the bottom of the partition;
a base supporting the casing upon a horizontal surface; and a chimney venting the exhaust chamber to the outside atmosphere.
8. The device of claim 7 wherein a hinged lid forms part of the casing and wherein a gap between the lower end of the lid and the rest of the casing defines one of the air intake slits.
9. The device of claim 8 wherein the two slits define a horizontal plane containing the bottom edge of the partition.
10. The device of claim 9 wherein the exhaust chamber supports at least one horizontal baffle located below the chimney.
11. The device of claim 10 wherein the major portion of the section of the casing that surrounds the fire chamber is constructed of glass.
12. The device of claim 11 wherein the bottom of the fire chamber is coated with fire clay.
13. The device of claim 10 wherein the casing on the top of the exhaust chamber is elongated to form a horizontal cooking surface bisected by the chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA253,218A CA1067775A (en) | 1976-05-25 | 1976-05-25 | Fireplace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA253,218A CA1067775A (en) | 1976-05-25 | 1976-05-25 | Fireplace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1067775A true CA1067775A (en) | 1979-12-11 |
Family
ID=4106036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA253,218A Expired CA1067775A (en) | 1976-05-25 | 1976-05-25 | Fireplace |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1067775A (en) |
-
1976
- 1976-05-25 CA CA253,218A patent/CA1067775A/en not_active Expired
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