US61949A - Harvlin paddock - Google Patents
Harvlin paddock Download PDFInfo
- Publication number
- US61949A US61949A US61949DA US61949A US 61949 A US61949 A US 61949A US 61949D A US61949D A US 61949DA US 61949 A US61949 A US 61949A
- Authority
- US
- United States
- Prior art keywords
- iron
- harvlin
- paddock
- articles
- hardening
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 60
- 229910052742 iron Inorganic materials 0.000 description 30
- 235000002639 sodium chloride Nutrition 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 240000002799 Prunus avium Species 0.000 description 2
- 235000015115 caffè latte Nutrition 0.000 description 2
- 235000019693 cherries Nutrition 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229950008597 drug INN Drugs 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate 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
Description
@nitrh girth-5 iglstimt @ffirr.
IMPROVEMENT IN HAEDENING IRON.
din gdgihulc nfrrnh in in ilgrsc lattes 33mm in making put at the 5mm.
TO ALL WHOM IT MAY CONCERN:
Be it known that I; HARVLIN PADDOCK, of St. Johnsbury, in the county of Caledonia, andState of Vermont, am inventor of a certain new and useful Improvement in Hardening Iron; and Ido hereby declare that the following is a full and exact description thereof. i
It has long been common to harden iron by producing a condition approximating to that of steel on the surface, and then plunging it into water, or otherwise suddenly cooling it. My invention operates, as Ibelieve, by analogous means, but the material which I employ is difi'erent, and I obtain a better result. I can harden articles of iron, sooner and more evenly, than by the ordinary means of case hardening. I will first describe in detail what I consider the best meansof carrying out my invention, and will afterwards designate the point which I believe to be new. V
I take the finished articles of iron, the parts of gunlocks for example, and deposit them-in a tight case, by preference cast iron, and fill'the interstices with the following compound, or so arrange the material in layers that the compound shall be in contact with the greater portion of the surface of each article: one quart of fresh hard-wood charcoal, pulverized; one quart of filings or chips of cast iron or steel; two table-spoonsful of.
salt. To the above ingredients may be added'a'large or small quantity of prussiste of pota sln but Ido not eonsidcnthe presence of the prussiute essential. Having completely filled and tightly closed the case,'I-heat the case and its contents for a few hours, holding it at a' cherry red heat or a. little higher, after which the whole may be removed, and the iron articles, either immediately or at, some subsequent heating, plunged into. cold water or oil.
In making articles of a form-which allows drawing under the hammer or through rollers as a final operation, I prefer to produce th-eproper condition of the surface by the means above described, and then to condense the metal slightly by rolling or drawing under the'harnmer at 'the proper temperature immediately previous to the plunging in the water. I have hardened, with some success, by the employment of cast-iron chips inn finely divided state, and pulverized charcoal enclosed, together with the articles to be hairdened, without the salt, but
I esteem it much better to use the salt. I have made very good files in some of my experiments with this mode of hardening soft iron; also a very hard and enduring tool or cutter used in a lathe for turning iron; I have welded iron articles, which have beefi thus prepared, successfully without the use of borax The process of treating with my compound; may be oontinuedfurther, by the use of a greater quantity and a. longer heating until the hardness, insteadof affecting the surface, shrill pervade the entire masses of iron. In either case the action is more rapid, and the result is a. better quality of hard iron or steel than with the usual hardening material.
Having now fully described my invention, what 'I claim as new, and desire to secure by Letters Patent, is
as follows 4 v v v I claim the within-described process of hardening iron with the employment of carbonate of iron and carbon msterialjor hardening iron when used substantially as herein set forth.
in a finely divided state, applied in the manner substantially as herein set forth.
I also claim the combination of common salt, carbonate of iron, and carbon in a finelydivided state, n
HAIWLIN rupees.
Witnesses:
Guns. F. SPAULDING, Tnoms Srooman.
Publications (1)
Publication Number | Publication Date |
---|---|
US61949A true US61949A (en) | 1867-02-12 |
Family
ID=2131486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US61949D Expired - Lifetime US61949A (en) | Harvlin paddock |
Country Status (1)
Country | Link |
---|---|
US (1) | US61949A (en) |
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0
- US US61949D patent/US61949A/en not_active Expired - Lifetime
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