CA1127031A - Glass firescreen with air curtain for wood stoves and firplaces - Google Patents
Glass firescreen with air curtain for wood stoves and firplacesInfo
- Publication number
- CA1127031A CA1127031A CA351,232A CA351232A CA1127031A CA 1127031 A CA1127031 A CA 1127031A CA 351232 A CA351232 A CA 351232A CA 1127031 A CA1127031 A CA 1127031A
- Authority
- CA
- Canada
- Prior art keywords
- firescreen
- glass
- air intake
- frame
- diverting member
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/18—Stoves with open fires, e.g. fireplaces
- F24B1/191—Component parts; Accessories
- F24B1/192—Doors; Screens; Fuel guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B13/00—Details solely applicable to stoves or ranges burning solid fuels
- F24B13/004—Doors specially adapted for stoves or ranges
Abstract
ABSTRACT
A conventional firescreen made from a heat resistant glass, used for an open wood burning stove or fireplace, is known to be much more efficient in the prevention of heat loss than a firescreen made from a steel wire mesh or a perforated steel plate. However, the glass firescreen can easily become stained by soot and smoke which therefore requires numerous cleanings.
There is also the possibility of the glass shattering if a fire is allowed to become too large and hot. In this invention, the glass firescreen has an air intake diverting plate situated behind the glass plate at the lower and/or side portions of the glass frame allowing the formation of a moving air curtain over the rear surface of the glass which will protect the glass from the soot, smoke and excessive heat, and thereby assist in preventing said stain formation.
A conventional firescreen made from a heat resistant glass, used for an open wood burning stove or fireplace, is known to be much more efficient in the prevention of heat loss than a firescreen made from a steel wire mesh or a perforated steel plate. However, the glass firescreen can easily become stained by soot and smoke which therefore requires numerous cleanings.
There is also the possibility of the glass shattering if a fire is allowed to become too large and hot. In this invention, the glass firescreen has an air intake diverting plate situated behind the glass plate at the lower and/or side portions of the glass frame allowing the formation of a moving air curtain over the rear surface of the glass which will protect the glass from the soot, smoke and excessive heat, and thereby assist in preventing said stain formation.
Description
~Z'i~ 3~
GLASS FIRESCREEN WITH AIR CURTAIN FOR WOOD STOVES AND FIREPI~CES
Field of the Invention This invention relate~ to a glass firescreen ~or a stove or fireplace~ particularly an open wood burning ~tove or fireplace.
S Review of the Prior Art . _ The known firescreens made from a steel wire mesh or per-forated steel plate will prevent the escape of sparks and allows the viewing of the fully open fire but also aIlows air to be sucked up the c~imn~y unhindered, causing a large draft which pulls an unduly large part of the heat up the chimney and also feeds the fire which increases the speed of consumption of the fuelO A glass firescreen permits the desirable viewing of the fire, and transmission of radiant heat, and also reduces the amount of air reaching the fire~
It therefore does not have the problems mentioned above to the same extent, but requires frequent cleaning of the inner surface of the glass due to stains caused by soot and smoke. There is also the problem of the glass possibly shattering if the fire is allowed to become too large and hot.
It has been found that these disadvantages can be over-come by providing at least one air intake..diverting member such as a plate that runs along the whole length of one o~ the lower or side portions of the frame`where air is taken in for combustion~
The plate(s) will deflect intaken air upward or sid~ways toward the glass forming an air curtain to protect the inner surface of the glass from the soot, smoke and excessive heat~ decreasing the need for the cleaning of the scr~en.
.
~'~' ~
)3J~
Thus, a firescxeen fo~ place~ent within a $ixepl~ce surround comy~isin~;
a ~rame h~vin~ at least a lower edge and tWo side edges;
a heat resistant glass plate mounted by the frame;
mounting means to hold the frame in spaced relationship from said surround and to provide a continuous elongate air inlet slit along one edge of said frame, an air intake diverting member mounted by the frame behind the air inlet slit to provide over the rear surface of the glass plate a moving air curtain for inhibition o~ deposit thereon of soot and smok~ from the fire, said elongate slit providing an unencumbered air inlet duct for said diverting member.
Description of the DraWings Particular preferred embodiments of the invention will now be described, by way of example, with reference to the accom-panying drawings wherein:
FIGURE 1 is a front view of a removable glass firescrren for an open wood burning stove, FIGURE 2 is an enlarged sectional view taken on the line 2-2 of Figure 1, FIGURE 3 is an enlarged cross-section of the air intake diverting plate shown in Figure 2, while FIGURE 3a shows a divert-ing plate of different shape, FIGURE 4 is a front view of a glass firescreen for a wood stove or fireplace having the form of a door with hinges at one end, 3~L
FIGURE 5 shows ~ sectional view of a controlled air intake diverting plate in a ~ide open position, taken on the line 5-5 of Figure 4, while FIGURE 5a shows an alternate shape diverting plate, - 3a ~
~, ' :
~, 3~
FIGURE 6 show~ the controlled air intake diverting plate of Figure S in a closed position, FIGURE 7 is a front view of a dou~le-door gla~ fire~creen for ~ood stoves or fireplaces, and S FIGURE 8 i~ a front view of a double door gla~ firescreen for a fireplac~ having an unusually tall opening.
Descri tion of the Preferred Embodiments P _. _ The glass firescreen illu3trated in Figure 1, compri~e~
a h,eat resistant glass plate 1 held by a frame 2, and an air intake div'erting member constituted by plate 3 attached to brackeks 4 which with the hel~ of upper hook~ 5'hold the glass firescreen in place before the fireplace. Two handle~ 6 are pxovided at opposite ends of the frame 2 for the easy lifting and placingin position of the glass fire~creen. The ~lass plate sits- within the frame 2 on saddle plates 7 fastened by rivets 8 to the frame. At least part of the air supply for the stove passes up through the base sec~ion of the frame 2 and is diverted upward in the form of a moving cur-tain across the rear or inner surface of the glass by the air intake diverting plate 3 so as to i~hibit the deposition thereon of soot or smoke and to protec~ the glass against excessive hea~. The plate is inclined toward the rear face of the glass plate to provide a throt$1ed outlet opening to~ard the pla~e. A small gap is allowed between the stove and the screen running along all vf the sides of the screen in order to induce sufficient air in~ake to form a complete air curtain that shields the glas~0 The upper hooks 5 have air intake h~les to preven$ the blockage of the a~r supply from the top of the frame 2 and con~equent formation of stainsO
The to~al amoun~ of intake air to the ~tove will be controlled by ~ 7~
the damper of the stove ~ocated at the st~ve outlet pipe. The air in~ake diverting plate shown in Figure 3 i8 of L~hape, while that shown in Figùre 3a i~ of hal moon shapQ.
The invention can also be adapted to variou~ kind~ o~
glass firescreens for wood ~toves or fir~place~ as follow~:
T~e firescreen illustrated in Figure 4 i8 a ~ingle door firescreen with hin~es 9 at one ~ide. The air intake divertlng plate~ 10, shown most clearly in Figuxe 4, is movable by any ~uitable con`trol mechanism (not shown~ ~or the closing and opening of the air intake. Thï~ control mechani~m is attachea to the fixed frame part 11, which iB actually a section of a stove opening or the outer frame of a fireplace firescr~en. The open and closed posi-tions of the air intake diverting plate 10 are ~hown in Figure 5 and Figure 6 respectively. The shape of the air intake diver~ing plate in Figure 5 i~ also an L-shape while that in Figure 5a is also haif moon ~hape. The control mechanism of the air intake diverting plate will not be disclosed in this patent application~
The glass fire~creen illustrated in Figure 7 has the same air intaXe diverting plate arrangement as the screen shown in Figure 4, except that this is a double door firescreen. ~hiY
arrangement for an air intake diverting plate 12 can also be applied to a bi-fold four-door glass fire~creen.
The glass firescreen illustrated in Figure 8 is for an unusually tall firescreen opening and i8 provided with two, controlled, vertical air intake diverting plate~ 13 ~ituated one at each vertical edge of the fire~creen~
GLASS FIRESCREEN WITH AIR CURTAIN FOR WOOD STOVES AND FIREPI~CES
Field of the Invention This invention relate~ to a glass firescreen ~or a stove or fireplace~ particularly an open wood burning ~tove or fireplace.
S Review of the Prior Art . _ The known firescreens made from a steel wire mesh or per-forated steel plate will prevent the escape of sparks and allows the viewing of the fully open fire but also aIlows air to be sucked up the c~imn~y unhindered, causing a large draft which pulls an unduly large part of the heat up the chimney and also feeds the fire which increases the speed of consumption of the fuelO A glass firescreen permits the desirable viewing of the fire, and transmission of radiant heat, and also reduces the amount of air reaching the fire~
It therefore does not have the problems mentioned above to the same extent, but requires frequent cleaning of the inner surface of the glass due to stains caused by soot and smoke. There is also the problem of the glass possibly shattering if the fire is allowed to become too large and hot.
It has been found that these disadvantages can be over-come by providing at least one air intake..diverting member such as a plate that runs along the whole length of one o~ the lower or side portions of the frame`where air is taken in for combustion~
The plate(s) will deflect intaken air upward or sid~ways toward the glass forming an air curtain to protect the inner surface of the glass from the soot, smoke and excessive heat~ decreasing the need for the cleaning of the scr~en.
.
~'~' ~
)3J~
Thus, a firescxeen fo~ place~ent within a $ixepl~ce surround comy~isin~;
a ~rame h~vin~ at least a lower edge and tWo side edges;
a heat resistant glass plate mounted by the frame;
mounting means to hold the frame in spaced relationship from said surround and to provide a continuous elongate air inlet slit along one edge of said frame, an air intake diverting member mounted by the frame behind the air inlet slit to provide over the rear surface of the glass plate a moving air curtain for inhibition o~ deposit thereon of soot and smok~ from the fire, said elongate slit providing an unencumbered air inlet duct for said diverting member.
Description of the DraWings Particular preferred embodiments of the invention will now be described, by way of example, with reference to the accom-panying drawings wherein:
FIGURE 1 is a front view of a removable glass firescrren for an open wood burning stove, FIGURE 2 is an enlarged sectional view taken on the line 2-2 of Figure 1, FIGURE 3 is an enlarged cross-section of the air intake diverting plate shown in Figure 2, while FIGURE 3a shows a divert-ing plate of different shape, FIGURE 4 is a front view of a glass firescreen for a wood stove or fireplace having the form of a door with hinges at one end, 3~L
FIGURE 5 shows ~ sectional view of a controlled air intake diverting plate in a ~ide open position, taken on the line 5-5 of Figure 4, while FIGURE 5a shows an alternate shape diverting plate, - 3a ~
~, ' :
~, 3~
FIGURE 6 show~ the controlled air intake diverting plate of Figure S in a closed position, FIGURE 7 is a front view of a dou~le-door gla~ fire~creen for ~ood stoves or fireplaces, and S FIGURE 8 i~ a front view of a double door gla~ firescreen for a fireplac~ having an unusually tall opening.
Descri tion of the Preferred Embodiments P _. _ The glass firescreen illu3trated in Figure 1, compri~e~
a h,eat resistant glass plate 1 held by a frame 2, and an air intake div'erting member constituted by plate 3 attached to brackeks 4 which with the hel~ of upper hook~ 5'hold the glass firescreen in place before the fireplace. Two handle~ 6 are pxovided at opposite ends of the frame 2 for the easy lifting and placingin position of the glass fire~creen. The ~lass plate sits- within the frame 2 on saddle plates 7 fastened by rivets 8 to the frame. At least part of the air supply for the stove passes up through the base sec~ion of the frame 2 and is diverted upward in the form of a moving cur-tain across the rear or inner surface of the glass by the air intake diverting plate 3 so as to i~hibit the deposition thereon of soot or smoke and to protec~ the glass against excessive hea~. The plate is inclined toward the rear face of the glass plate to provide a throt$1ed outlet opening to~ard the pla~e. A small gap is allowed between the stove and the screen running along all vf the sides of the screen in order to induce sufficient air in~ake to form a complete air curtain that shields the glas~0 The upper hooks 5 have air intake h~les to preven$ the blockage of the a~r supply from the top of the frame 2 and con~equent formation of stainsO
The to~al amoun~ of intake air to the ~tove will be controlled by ~ 7~
the damper of the stove ~ocated at the st~ve outlet pipe. The air in~ake diverting plate shown in Figure 3 i8 of L~hape, while that shown in Figùre 3a i~ of hal moon shapQ.
The invention can also be adapted to variou~ kind~ o~
glass firescreens for wood ~toves or fir~place~ as follow~:
T~e firescreen illustrated in Figure 4 i8 a ~ingle door firescreen with hin~es 9 at one ~ide. The air intake divertlng plate~ 10, shown most clearly in Figuxe 4, is movable by any ~uitable con`trol mechanism (not shown~ ~or the closing and opening of the air intake. Thï~ control mechani~m is attachea to the fixed frame part 11, which iB actually a section of a stove opening or the outer frame of a fireplace firescr~en. The open and closed posi-tions of the air intake diverting plate 10 are ~hown in Figure 5 and Figure 6 respectively. The shape of the air intake diver~ing plate in Figure 5 i~ also an L-shape while that in Figure 5a is also haif moon ~hape. The control mechanism of the air intake diverting plate will not be disclosed in this patent application~
The glass fire~creen illustrated in Figure 7 has the same air intaXe diverting plate arrangement as the screen shown in Figure 4, except that this is a double door firescreen. ~hiY
arrangement for an air intake diverting plate 12 can also be applied to a bi-fold four-door glass fire~creen.
The glass firescreen illustrated in Figure 8 is for an unusually tall firescreen opening and i8 provided with two, controlled, vertical air intake diverting plate~ 13 ~ituated one at each vertical edge of the fire~creen~
Claims (10)
1. A firescreen for placement within a fireplace surround comprising;
a frame having at least a lower edge and two side edges;
a heat resistant glass plate mounted by the frame;
mounting means to hold the frame in spaced relationship from said surround and to provide a continuous elongate air inlet slit along one edge of said frame, an air intake diverting member mounted by the frame behind the air inlet slit to provide over the rear surface of the glass plate a moving air curtain for inhibition of deposit thereon of soot and smoke from the fire, said elongate slit providing an unencumbered air inlet duct for said diverting member.
a frame having at least a lower edge and two side edges;
a heat resistant glass plate mounted by the frame;
mounting means to hold the frame in spaced relationship from said surround and to provide a continuous elongate air inlet slit along one edge of said frame, an air intake diverting member mounted by the frame behind the air inlet slit to provide over the rear surface of the glass plate a moving air curtain for inhibition of deposit thereon of soot and smoke from the fire, said elongate slit providing an unencumbered air inlet duct for said diverting member.
2. A firescreen as defined in claim 1 in which the air intake diverting member is an L-shape plate.
3. A firescreen as defined in claim 1 in which the air intake diverting member is a half moon shape plate.
4. A firescreen as claimed in any one of claims 1 to 3 in which the air intake diverting member has a throttled outlet opening at an acute angle toward the glass plate.
5. A firescreen as claimed in any one of claims 1 to 3 wherein said mounting means includes brackets engageable with a horizontal portion of said surround to hold said frame above said horizontal portion.
6. A firescreen as claimed in any one of claims 1 to 3 wherein said mounting means comprises a hinge.
7. A firescreen as claimed in any one of claims 1 to 3 in which the air intake diverting member is movable to vary an outlet opening provided between the glass plate and said air intake diverting member.
8. A firescreen as claimed in any one of claims 1 to 3 and comprising a double door constituted by two heat resistant glass plates and two frames to hold the plates.
9. A firescreen as claimed in any one of claims 1 to 3 in which two air intake diverting members are one on each side of the frame.
10. A firescreen as claimed in any one of claims 1 to 3 and comprising a bi-fold four-door firescreen constituted by four heat-resistant glass plates and four frames to hold the plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA351,232A CA1127031A (en) | 1980-05-05 | 1980-05-05 | Glass firescreen with air curtain for wood stoves and firplaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA351,232A CA1127031A (en) | 1980-05-05 | 1980-05-05 | Glass firescreen with air curtain for wood stoves and firplaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1127031A true CA1127031A (en) | 1982-07-06 |
Family
ID=4116862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA351,232A Expired CA1127031A (en) | 1980-05-05 | 1980-05-05 | Glass firescreen with air curtain for wood stoves and firplaces |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1127031A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706647A (en) * | 1986-05-14 | 1987-11-17 | Wilkening Donald W | Air flow control for totally enclosed fireplace |
| FR2617270A1 (en) * | 1987-06-23 | 1988-12-30 | Supra Sa | High-temperature closed hearth, the fire of which may or may not be visible, in particular of the fireplace-hearth or stove type |
| FR2653534A1 (en) * | 1989-10-25 | 1991-04-26 | Labattu Michel | Ventilation device to be installed on the upper part of the window of a closed hearth |
| EP1336801A1 (en) | 2002-02-15 | 2003-08-20 | NISA Prodotti SA | Method and device for separating a fire from the outside with an air curtain |
| GB2402468A (en) * | 2003-06-06 | 2004-12-08 | Valor Ltd | Transparent barrier for a simulated solid fuel gas fire |
| EP1647773A1 (en) * | 2004-10-14 | 2006-04-19 | Reinhild Roland | A system for removably covering the front opening of the burning compartment of a closed fireplace |
| CN107726370A (en) * | 2017-10-27 | 2018-02-23 | 华北水利水电大学 | The anti-scald door body of separation of glasses formula warming stove |
-
1980
- 1980-05-05 CA CA351,232A patent/CA1127031A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706647A (en) * | 1986-05-14 | 1987-11-17 | Wilkening Donald W | Air flow control for totally enclosed fireplace |
| FR2617270A1 (en) * | 1987-06-23 | 1988-12-30 | Supra Sa | High-temperature closed hearth, the fire of which may or may not be visible, in particular of the fireplace-hearth or stove type |
| FR2653534A1 (en) * | 1989-10-25 | 1991-04-26 | Labattu Michel | Ventilation device to be installed on the upper part of the window of a closed hearth |
| EP1336801A1 (en) | 2002-02-15 | 2003-08-20 | NISA Prodotti SA | Method and device for separating a fire from the outside with an air curtain |
| GB2402468A (en) * | 2003-06-06 | 2004-12-08 | Valor Ltd | Transparent barrier for a simulated solid fuel gas fire |
| GB2402468B (en) * | 2003-06-06 | 2006-06-07 | Valor Ltd | Heating apparatus |
| EP1647773A1 (en) * | 2004-10-14 | 2006-04-19 | Reinhild Roland | A system for removably covering the front opening of the burning compartment of a closed fireplace |
| CN107726370A (en) * | 2017-10-27 | 2018-02-23 | 华北水利水电大学 | The anti-scald door body of separation of glasses formula warming stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |