US1645293A - Electric furnace resistor - Google Patents
Electric furnace resistor Download PDFInfo
- Publication number
- US1645293A US1645293A US480262A US48026221A US1645293A US 1645293 A US1645293 A US 1645293A US 480262 A US480262 A US 480262A US 48026221 A US48026221 A US 48026221A US 1645293 A US1645293 A US 1645293A
- Authority
- US
- United States
- Prior art keywords
- resistor
- electric furnace
- refractory
- furnace
- supported
- 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 - Lifetime
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/62—Heating elements specially adapted for furnaces
- H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
Definitions
- the device embodying my invention provides a heating" element for an electric-resistance furnace which may be easily and quickly installed or removed.
- An electric furnace comprising a plu rality of walls enclosing a furnace chamber, a plurality of ahn d, spaced refractory 'members-located in certain of said walls and extending into said chamber, a notched refractorybar supported by certain of said refractory members, a second notched refractory bar located in opposite parallel-spaced relation to said first bar and a metallic resistor helically wound HIOUIN said two bars and supported in the notched portions of one of said bars.
- An electric furnace comprising a plurality of walls enclosing a furnace chamber. a notched refractory bar supported in said chamber in spaced relation to said walls. a helically-wound resistor member supported in the notches of said bar and means engaging said resistor member for maintaining the lower portions of said resistor loops in spaced operative relation in said furnace chamber under all operating conditions.
- An electric furnace comprising a plurality of refractory walls encl sing a furnace chamber, an elongated single member of refractory electric-insulating material supported in said chamber in spaced relation to one of said walls, a resistor member of substantially flattened helical-shape dependmg from said elongated member, and a second elongated single member, of refractory electric-insulating material, engaging the lower ends of the helices of said resistor member and supported thereby.
Landscapes
- Resistance Heating (AREA)
Description
1,645,293 Oct. 11 1927. T. A.
ELECTRIC FURNACE RESISTOR Filed June 25. 1921 WITNESSES: f E. INVENTOR Emmi/6'. Paid ATTORNEY 'efi'ective to maintain the vertically extending portions of the helix in a taut condition during the operation of the furnace. As the metal used for the resistor is of a chara'cter adapted to withstand relatively high temperatures and has a relatively large coefficient of linear expansion, this provision for maintaining a ribbon resistor taut is an important element of my invention.
It may furtherbe noted that, by the use of the device embodying my invention, I am able to so wind the resistor member that the [lat surface of a-ribbon is available for radiating the heat generated into the furnace chamber.
It may further be noted that the device embodying my invention provides a heating" element for an electric-resistance furnace which may be easily and quickly installed or removed.
Various mmlilications may be made in the device embodying my invention without departing from the spirit and scope thereof, arid I desire that only such limitations shall be placed thereon as are imposed by the prior art or are specili ally set forth in the appended claims.
I claim my invention:
1. An electric furnace comprising a plu rality of walls enclosing a furnace chamber, a plurality of ahn d, spaced refractory 'members-located in certain of said walls and extending into said chamber, a notched refractorybar supported by certain of said refractory members, a second notched refractory bar located in opposite parallel-spaced relation to said first bar and a metallic resistor helically wound HIOUIN said two bars and supported in the notched portions of one of said bars.
2. An electric furnace comprising a plurality of walls enclosing a furnace chamber. a notched refractory bar supported in said chamber in spaced relation to said walls. a helically-wound resistor member supported in the notches of said bar and means engaging said resistor member for maintaining the lower portions of said resistor loops in spaced operative relation in said furnace chamber under all operating conditions.
3. An electric furnace comprising a plurality of refractory walls encl sing a furnace chamber, an elongated single member of refractory electric-insulating material supported in said chamber in spaced relation to one of said walls, a resistor member of substantially flattened helical-shape dependmg from said elongated member, and a second elongated single member, of refractory electric-insulating material, engaging the lower ends of the helices of said resistor member and supported thereby. I
In testimony whereof, ll have-hereunto subscribed my name this 20th day of June,
THOMAS A. REID.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US480262A US1645293A (en) | 1921-06-25 | 1921-06-25 | Electric furnace resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US480262A US1645293A (en) | 1921-06-25 | 1921-06-25 | Electric furnace resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1645293A true US1645293A (en) | 1927-10-11 |
Family
ID=23907285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US480262A Expired - Lifetime US1645293A (en) | 1921-06-25 | 1921-06-25 | Electric furnace resistor |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1645293A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983003517A1 (en) * | 1982-04-02 | 1983-10-13 | Haglund, John, Helge | Suspension device for resistor elements in furnaces |
| WO2003096750A1 (en) * | 2002-05-07 | 2003-11-20 | Sandvik Ab | Device for stabilizing a multi-legged resistor element |
-
1921
- 1921-06-25 US US480262A patent/US1645293A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983003517A1 (en) * | 1982-04-02 | 1983-10-13 | Haglund, John, Helge | Suspension device for resistor elements in furnaces |
| US4604754A (en) * | 1982-04-02 | 1986-08-05 | Bulten-Kanthal Ab | Suspension device for resistor elements in furnaces |
| WO2003096750A1 (en) * | 2002-05-07 | 2003-11-20 | Sandvik Ab | Device for stabilizing a multi-legged resistor element |
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