US140762A - Improvement in the manufacture of steel plates - Google Patents
Improvement in the manufacture of steel plates Download PDFInfo
- Publication number
- US140762A US140762A US140762DA US140762A US 140762 A US140762 A US 140762A US 140762D A US140762D A US 140762DA US 140762 A US140762 A US 140762A
- Authority
- US
- United States
- Prior art keywords
- steel
- manufacture
- ingots
- steel plates
- improvement
- 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
- 229910000831 Steel Inorganic materials 0.000 title description 13
- 239000010959 steel Substances 0.000 title description 13
- 238000004519 manufacturing process Methods 0.000 title description 8
- 238000005266 casting Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000015943 Coeliac disease Diseases 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
Definitions
- my invention relates to the manufacture of steel ;and consists in running the metal from a steel-melting furnace or Bessemer converter into molds so that the ingot or in gots formed have a recess or recesses cast in them; and in the manufacture of mild steel plates such as are usually employed for boiler plateif the ingots are cast without recesses, cutting the ingot into any suitable size, and reducing the pieces to plates or sheets, as will be more fully set forth hereafter.
- the steel In the manufacture of steel by the Bessemer converter or steel-melting furnaces the steel is either cast in single ingots or in groups. In casting several single ingots the difficulties are various-the steel may clog in the nozzle, causing a skull in the ladle, or the Stoppers may burn or break, causing a Waste of steel. In casting groups of ingots, the connection between the center and other ingots, called sprues, are waste, as also a portion or all of the center ingot.
- the advantage of run' ning the whole heat from a Bessemer convert er or melting-furnace into one or only a few in gots is greater than in higher grades of steel.
- the steel is then run into a mold or molds, and the ingots may have a recess or recesses cast in them, and then, by means of falling Weights, circular saws, or other suitable instruments, may be divided into pieces, or the ingots vmay have the recesses formed in them after being cast and then be divided.
- the in gots may be first partially rolled, then cut, and placed in the furnace again, and finished in the ordinary Way.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
UNITED STATE OGDEN BOLTON, JR., OF PITTSBURG, PENNSYLVANIA.
IMPROVEMENT IN THE. MANUFACTURE OF STEEL PLATES.
Specification forming part of Letters Patent No. 140.762, dated July l5, 1873; application filed March 7, 1873.
To all whom it may concern:
Be it lknown that I, OGDEN BoLroN, J r., of Pittsburg, county of Allegheny, and State of Pennsylvania, have invented certain new and useful Improvements in the Manufacture of Steel Plates or Sheets, of which the following is a specification:
The nature of my invention relates to the manufacture of steel ;and consists in running the metal from a steel-melting furnace or Bessemer converter into molds so that the ingot or in gots formed have a recess or recesses cast in them; and in the manufacture of mild steel plates such as are usually employed for boiler plateif the ingots are cast without recesses, cutting the ingot into any suitable size, and reducing the pieces to plates or sheets, as will be more fully set forth hereafter.
The accompanying drawings show plan views of ingots cast with recesses.
In the manufacture of steel by the Bessemer converter or steel-melting furnaces the steel is either cast in single ingots or in groups. In casting several single ingots the difficulties are various-the steel may clog in the nozzle, causing a skull in the ladle, or the Stoppers may burn or break, causing a Waste of steel. In casting groups of ingots, the connection between the center and other ingots, called sprues, are waste, as also a portion or all of the center ingot.
To obviate these diicultiesI cast a heat from either a steel-melting furnace or Bessemer converter into one or more ingots, a, having recesses B formed in them. These recesses are formed by corresponding projections in the mold or molds. Where one mold only is used for the Whole heat the steel may be run direct from the furnace or converter. These ingots can then be broken up or cut, bymeans of circular sawsor other suitable instruments, into pieces.
In the manufacture of soft steel, such as is used for boiler-plate, the advantage of run' ning the whole heat from a Bessemer convert er or melting-furnace into one or only a few in gots is greater than in higher grades of steel. The steel is then run into a mold or molds, and the ingots may have a recess or recesses cast in them, and then, by means of falling Weights, circular saws, or other suitable instruments, may be divided into pieces, or the ingots vmay have the recesses formed in them after being cast and then be divided.
Where the ingots are cast double or more than double the size required for a plate the in gots may be first partially rolled, then cut, and placed in the furnace again, and finished in the ordinary Way. l
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
l. The method described of casting an in got of steel with a recess or recesses, substantially as set forth. e
2. The method described of manufacturing soft-steel plates, substantially as specified.
In testimony' that I claim the foregoing as my invention I affix my signature this 17th day of February, 1873.
OGDEN BOLTON, JR.
Witnesses:
JOHN S. HoLLINesHEAD, HARVEY LIsT. Y
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US140762A true US140762A (en) | 1873-07-15 |
Family
ID=2210176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US140762D Expired - Lifetime US140762A (en) | Improvement in the manufacture of steel plates |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US140762A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3092470A (en) * | 1959-07-29 | 1963-06-04 | Continental Can Co | Preparation of sheet stock having longitudinal external weakenings therein and product thereof |
| US3157474A (en) * | 1959-08-07 | 1964-11-17 | Continental Can Co | Preparation of expandable laminate stock and billet therefor |
-
0
- US US140762D patent/US140762A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3092470A (en) * | 1959-07-29 | 1963-06-04 | Continental Can Co | Preparation of sheet stock having longitudinal external weakenings therein and product thereof |
| US3157474A (en) * | 1959-08-07 | 1964-11-17 | Continental Can Co | Preparation of expandable laminate stock and billet therefor |
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