US130590A - Improvement in blast-furnaces - Google Patents
Improvement in blast-furnaces Download PDFInfo
- Publication number
- US130590A US130590A US130590DA US130590A US 130590 A US130590 A US 130590A US 130590D A US130590D A US 130590DA US 130590 A US130590 A US 130590A
- Authority
- US
- United States
- Prior art keywords
- furnaces
- blast
- improvement
- cover
- furnace
- 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
Links
- 239000007789 gas Substances 0.000 description 8
- 238000004880 explosion Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/08—Top armourings
Definitions
- This invention consists in providing a cover or shutter to the top of the furnace in such a manner as to prevent the escape of the gases ordinarily, but so arranged and counterbalanced as to be easily lifted by the workmen when charging the furnace, and also to give but little resistance to any explosion of gases underneath it.
- Figure 1 is a sectional "iew of the upper portion of a furnace.
- Fig. 2 is a plan of the cover or shutter.
- the cover is represented at A, and may be made of cast-iron or of. sheet-metal, such as boilerplate, which may be strengthened or per portion of the funnel a bracket, F, is attached, to which is pivoted a lever, G, for lifting and supporting the shutters A A, and 1 which is connected therewith either by chains or rods, as at H H, and the weight of the entire cover is counterbalanced by a weight, as at'K, attached in any convenient manner to the end of the lever or the operating rod or chain, as at L, Fig. 1.
- the shutters When the furnace is to be charged with a fresh supply of ore or fuel, the shutters are raised up out of the way, as represented in Fig. 1, and then, after the operation of charging is completed, they are dropped down to rest upon and close the mouth of the furnace, and to prevent the ordinary escape of the gases. But it is evident withsuch a construction being hinged to a sliding bar, or one that can slide easily, and then, both being counterbalanced to a certain extent, that should any violent explosion of the gases occur the whole cover will be easily raised, and thereby permit the escape of the pressure that might otherwise injure the furnace.
- the bar to which the shutters are hinged may be arranged to slide in other ways than here shown, as by having its ends forked or curved around rods that might serve as guides and it is also manifest that there are various methods of arranging the counterbalance; but
- a counterbalanced cover for a blastfurnace substantially as described, and for the purposes set forth.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Description
P. PQPARROTT'.
Improvement in Blast-Furnaces.
No. 130,590 Patented Aug; 20, 1872 Fig.1.
\NiT'NESSES PATENT OFFICE.
PETER P. PARROTT, OF GREENWOOD IRON WORKS, NEW YORK.
IMPROVEMENTlNBLAST-FURNACES,
Specification forming part of Letters Patent No. 130,590, dated August 20, 18 72.
Specification describing certain Improvements in Blast-Furnaces, invented by PETER P. PARRoTT, of Greenwood Iron Works, in
$18 kcounty of Orange and State of New Nature and Object. This invention consists in providing a cover or shutter to the top of the furnace in such a manner as to prevent the escape of the gases ordinarily, but so arranged and counterbalanced as to be easily lifted by the workmen when charging the furnace, and also to give but little resistance to any explosion of gases underneath it.
Drawing.
Figure 1 is a sectional "iew of the upper portion of a furnace. Fig. 2 is a plan of the cover or shutter.
The cover is represented at A, and may be made of cast-iron or of. sheet-metal, such as boilerplate, which may be strengthened or per portion of the funnel a bracket, F, is attached, to which is pivoted a lever, G, for lifting and supporting the shutters A A, and 1 which is connected therewith either by chains or rods, as at H H, and the weight of the entire cover is counterbalanced by a weight, as at'K, attached in any convenient manner to the end of the lever or the operating rod or chain, as at L, Fig. 1.
When the furnace is to be charged with a fresh supply of ore or fuel, the shutters are raised up out of the way, as represented in Fig. 1, and then, after the operation of charging is completed, they are dropped down to rest upon and close the mouth of the furnace, and to prevent the ordinary escape of the gases. But it is evident withsuch a construction being hinged to a sliding bar, or one that can slide easily, and then, both being counterbalanced to a certain extent, that should any violent explosion of the gases occur the whole cover will be easily raised, and thereby permit the escape of the pressure that might otherwise injure the furnace. It is also evident that the bar to which the shutters are hinged may be arranged to slide in other ways than here shown, as by having its ends forked or curved around rods that might serve as guides and it is also manifest that there are various methods of arranging the counterbalance; but
I claim- 1. A counterbalanced cover for a blastfurnace, substantially as described, and for the purposes set forth.
2. The combination of the cover for ablastfurnace with a sliding bar, substantially as described, and for the purposes set forth.
PETER P. PARROTT.
Witnesses:
J ABEZ BoDEN, J N0. A. RoNEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US130590A true US130590A (en) | 1872-08-20 |
Family
ID=2200008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US130590D Expired - Lifetime US130590A (en) | Improvement in blast-furnaces |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US130590A (en) |
-
0
- US US130590D patent/US130590A/en not_active Expired - Lifetime
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