US282728A - Edwin jenkins and alexandeb law - Google Patents
Edwin jenkins and alexandeb law Download PDFInfo
- Publication number
- US282728A US282728A US282728DA US282728A US 282728 A US282728 A US 282728A US 282728D A US282728D A US 282728DA US 282728 A US282728 A US 282728A
- Authority
- US
- United States
- Prior art keywords
- jenkins
- law
- edwin
- alexandeb
- liquid
- 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
- 239000007788 liquid Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 239000002253 acid Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000005484 gravity Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 206010015150 Erythema Diseases 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000000137 annealing Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/46—Salt baths
Definitions
- founders, and William Price also a subject of A temperature in a liquid, and the object is to I -metal.
- the par ticular point in the process is the temperature at which the metal is to be dipped into the liquid.v This point is just when it is reduced to a dull red heat, when the redness'is about to disappear.
- the liquid in which it is immersed may be of any character not known to be inimicable to the character of iron-such as acids or acid salts-but we have obtained the best results from a solution of trcacle and water at a specific gravity of 1.005.
- the castings can be taken from the chill or from the sand sufficiently hot for the process, We dip them directly into the liquid; but when they cannot retain the proper heat for the act of dipping, we reheat them in an oven or chamber a little beyond the necessary temperature, and then allow them to cool to the point of dull redness, as before described, when we plunge them into a liquid, as before stated, and allow them to cool, when theprocess is completed. 7
Description
UNITED STATES PATENT, OFFICE,
EDWIN JENKINs AND ALEXANDER LAW, OE MELBOURNE, AND WILLIAM PRICE, F OARLTON, vIoTORIA.
PROCESS OF ANNEALlNG CHILLED AND OTHER IRON CASTINGS.
SPECIFICATION forming part of Letters Patent No. 282,728, dated August 7,1883,
Application filed June 27, 1883. (No specimens To all whmn it may concern Be it known that we, EDWIN JENKINS and ALEXANDER LAW, both subjects of the Queen of Great Britain, residing at Exhibition Street, Melbourne, in the British colony of Victoria,
founders, and William Price, also a subject of A temperature in a liquid, and the object is to I -metal.
make them so that they can be punched, bored, tapped, and so on as readily as wrought At present they are too brittle for this kind of treatment; but by our process they are converted into such a condition as to be readily manipulated in this way. The par ticular point in the process is the temperature at which the metal is to be dipped into the liquid.v This point is just when it is reduced to a dull red heat, when the redness'is about to disappear. The liquid in which it is immersed may be of any character not known to be inimicable to the character of iron-such as acids or acid salts-but we have obtained the best results from a solution of trcacle and water at a specific gravity of 1.005.
best results.
\Vhen the castings can be taken from the chill or from the sand sufficiently hot for the process, We dip them directly into the liquid; but when they cannot retain the proper heat for the act of dipping, we reheat them in an oven or chamber a little beyond the necessary temperature, and then allow them to cool to the point of dull redness, as before described, when we plunge them into a liquid, as before stated, and allow them to cool, when theprocess is completed. 7
We have tried various kinds of liquids in which to dip the castings, and found them all to answer more or less Well so long as acids and acid salts were avoided; but we have found that the solution of treacle and water at the gravity we have mentioned gives the Ve do not, however, confine ourselves to any particular kind of liquid in which to dip the castings; but
\Vhat we believe to be new, and therefore claim as our improved process of annealing chilled and other iron castings, is-
The sudden immersion of such castings when at a dull red heat in aliquid, and in preferably a liquid consisting of treacle and water of a specific gravity of 1.005, substantially as and for the purposes herein described and eX- plaincd.
EDWVIN JENKINS. ALEXANDER LAW. WVILLIAM PRICE.
\Vitnesses: e
G,WV. KNoTTs, WALTER SMYTIIE BAYsToN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US282728A true US282728A (en) | 1883-08-07 |
Family
ID=2351937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US282728D Expired - Lifetime US282728A (en) | Edwin jenkins and alexandeb law |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US282728A (en) |
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0
- US US282728D patent/US282728A/en not_active Expired - Lifetime
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