US53701A - Improvement in the manufacture of railroad-rails - Google Patents
Improvement in the manufacture of railroad-rails Download PDFInfo
- Publication number
- US53701A US53701A US53701DA US53701A US 53701 A US53701 A US 53701A US 53701D A US53701D A US 53701DA US 53701 A US53701 A US 53701A
- Authority
- US
- United States
- Prior art keywords
- rails
- railroad
- improvement
- manufacture
- iron
- 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
- 238000004519 manufacturing process Methods 0.000 title description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 32
- 229910052742 iron Inorganic materials 0.000 description 16
- 239000003610 charcoal Substances 0.000 description 10
- 229940072033 potash Drugs 0.000 description 10
- 235000015320 potassium carbonate Nutrition 0.000 description 10
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 10
- XFXPMWWXUTWYJX-UHFFFAOYSA-N cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010775 animal oil Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000003760 tallow Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/64—Carburising
- C23C8/66—Carburising of ferrous surfaces
Definitions
- the invention consists in case-hardening railroad-rails. It is speedy in its action, and applicable to many purposes when the iron cannot be heated in connection with charcoalas in muffler, for instanceand at the same time it does the work more effectually than can be accomplished by the application of prussiate of potash alone.
- the compound used consists of vegetablecharcoal, one part; animal-charcoal, one part; prussiate of potash, one part. Animal oil or tallow may be substituted for the charcoal.
- case-hardenin g with charcoal is tedious and requires certain facilities for its ready application but by my process the heated iron, by a simple and direct application, is ease-hardened with almost or quite the facility that it is accomplished by prussiatc of potash, and in a much better manner as respects the toughness of the steel and its depth.
- the special application of the compound consists in hardening the end of railroad-rails, whereby they are rendered equal in endurance to the other portions of the rails. It is well known that, owing to their want of support and the incidents of slight differences in elevation, the ends of rails become battered and injured long before the balance of the rail is unfit for service. When desired the whole upper surface of the rail may be so treated.
- animal-charcoal vege table'charcoal, or other carbonaceous material, such as animal oil or tallow, and prussiate of potash, in about the proportions specified, and for the purpose of hardening railroad-rails, as set forth.
Description
UNITED STATES PATENT OFFICE.
ZADOK STREET, OF SALEM, OHIO.
IMPROVEMENT IN THE MANUFACTURE OF RAILROAD-RAILS.
Specification forming part of Letters Patent No. 53,701, dated April 3, 1866.
To all whom it may concern:
Be it known that I, ZADOK STREET, of Salem, in the county of Oolumbiana and State of.
Ohio, have made new and useful Improvements in Case-Hardening Iron Railroad-Rails; and I do hereby declare the following to be a full, clear, and exact description of the nature of the same, snfficient to enable one skilled in the art to which it is allied to use the same.
The invention consists in case-hardening railroad-rails. It is speedy in its action, and applicable to many purposes when the iron cannot be heated in connection with charcoalas in muffler, for instanceand at the same time it does the work more effectually than can be accomplished by the application of prussiate of potash alone.
The compound used consists of vegetablecharcoal, one part; animal-charcoal, one part; prussiate of potash, one part. Animal oil or tallow may be substituted for the charcoal.
I am aware that all these ingredients have been used in processes for case-hardenin g iron, but not combined together or applied as I propose, which is as follows: The bar or piece of iron being heated to a cherry-red, the compound is placed upon it, and the iron quickly absorbs the carbon therefrom, making the chemical change required for the conversion of iron intosteel. The common plan of using prussiate of potash makes a hard and very brittle but thin scale of steel on the surface of the iron, which is not satisfactory on several accounts. It is neither deep nor tough enough, and will not bear'blows.
The process of case-hardenin g with charcoal is tedious and requires certain facilities for its ready application but by my process the heated iron, by a simple and direct application, is ease-hardened with almost or quite the facility that it is accomplished by prussiatc of potash, and in a much better manner as respects the toughness of the steel and its depth.
The special application of the compound consists in hardening the end of railroad-rails, whereby they are rendered equal in endurance to the other portions of the rails. It is well known that, owing to their want of support and the incidents of slight differences in elevation, the ends of rails become battered and injured long before the balance of the rail is unfit for service. When desired the whole upper surface of the rail may be so treated.
Having described my invention, what I claim therein as new, and desire to secure by Letters Patent, is
The combination of animal-charcoal, vege table'charcoal, or other carbonaceous material, such as animal oil or tallow, and prussiate of potash, in about the proportions specified, and for the purpose of hardening railroad-rails, as set forth.
To the above specification of my improvement in case-hardening I have signed my hand this 9th day of February, 1866.
ZADOK STREET.
Witnesses EDWARD H. KNIGHT, W. F. HALL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US53701A true US53701A (en) | 1866-04-03 |
Family
ID=2123245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US53701D Expired - Lifetime US53701A (en) | Improvement in the manufacture of railroad-rails |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US53701A (en) |
-
0
- US US53701D patent/US53701A/en not_active Expired - Lifetime
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