US515222A - Treating metal castings - Google Patents
Treating metal castings Download PDFInfo
- Publication number
- US515222A US515222A US515222DA US515222A US 515222 A US515222 A US 515222A US 515222D A US515222D A US 515222DA US 515222 A US515222 A US 515222A
- Authority
- US
- United States
- Prior art keywords
- solution
- casting
- treating metal
- metal castings
- castings
- 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
- 238000005058 metal casting Methods 0.000 title description 5
- 238000005266 casting Methods 0.000 description 17
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
- B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
Definitions
- My invention relates to a method of treating metal castings to render them impervious to air and water; and my invention consists in features of novelty hereinafter fully described and pointed out in the claims.
- My invention consists in immersing the castings in a solution of a silicate.
- a solution of any silicate may be used, though I prefer a solution of silicate of soda.
- I have found, by practical experience, that when a casting hasbeen immersed in a solution of a silicate and the solution heated to boiling point and allowed to gradually cool before the casting is removed, these minute holes or openings are effectually and permanently closed, and thus a casting which would otherwise have to I be discarded is made available for use, and
- the method of treating metal castings herein described which consists in immersing the same in a solution of a silicate, then boiling the solution while the casting remains immersed therein, and finally allowing the solution to cool before the casting is removed, as specified.
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
UNITED STATES P TENT .OFFICE.
HENRY HEIL, OF ST. LOUIS, MISSOURI.
TREATING METAL CASTINGS.
SPECIFICATION forming part of Letters Patent No. 515,222, dated February 20, 1894.
Application filed March 13. 1893- Serial No. 465,747. (No specimens.)
To all whom it may concern:
Be it known that I, HENRY HEIL, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Treating Metal Castings, of which the following is a full, clear, and exact description.
My invention relates to a method of treating metal castings to render them impervious to air and water; and my invention consists in features of novelty hereinafter fully described and pointed out in the claims.
It is the experience of every manufacturer of the class of machinery wherein air or liquid are employed that a very'large loss is sustained annually by castings otherwise good but for having minuteholes or openings,which permit of the passage of the air or water, and thus render the castings worthless. This probably is particularly so in the manufacture of air brakes, and it is known that hundreds of thousands of dollars worth of castings are discarded annually for this cause. I have discovered a method, comparatively inexpensive, whereby this difficulty is avoided.
My invention consists in immersing the castings in a solution of a silicate. A solution of any silicate may be used, though I prefer a solution of silicate of soda. I have found, by practical experience, that when a casting hasbeen immersed in a solution of a silicate and the solution heated to boiling point and allowed to gradually cool before the casting is removed, these minute holes or openings are effectually and permanently closed, and thus a casting which would otherwise have to I be discarded is made available for use, and
is placed in practically asgood condition as if the holes or perforations did not exist.
In carrying out my invention, I boil the solution while the casting is immersed therein,
hich causes the solution to thoroughly permeate the pores of the casting, then allow the solution to cool before withdrawing the castings, which, causes thesolution in the pores to be less liable to escape than would be the case if the casting was removed while the solution was hot, and then wiping the casting after being taken from the solution, to remove the solution from its surface before the solution hardens.
I claim as my invention 1. The method of treating metal castings herein described, which consists in immersing the same in a solution of a silicate, then boiling the solution while the casting remains immersed therein, and finally allowing the solution to cool before the casting is removed, as specified.
2. The method of treating metal castings herein described, which consists in immersing the same in a solution of a silicate, then boiling the solution while the casting remains immersed therein, then allowing the solution to cool, then removing the casting, and finally wiping the casting to remove the solution from its surface, as specified.
HENRY I-IEIL.
In presence of- ALBERT M. EBERSOLE, E. S. KNIGHT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US515222A true US515222A (en) | 1894-02-20 |
Family
ID=2584030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US515222D Expired - Lifetime US515222A (en) | Treating metal castings |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US515222A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522523A (en) * | 1946-06-24 | 1950-09-19 | Corning Glass Works | Graded glass seal |
| US3214287A (en) * | 1962-11-02 | 1965-10-26 | Thomas G Mosna | Method of and composition for impregnating porous metal castings |
| US3525399A (en) * | 1968-08-23 | 1970-08-25 | Exxon Production Research Co | Technique for insulating a wellbore with silicate foam |
-
0
- US US515222D patent/US515222A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522523A (en) * | 1946-06-24 | 1950-09-19 | Corning Glass Works | Graded glass seal |
| US3214287A (en) * | 1962-11-02 | 1965-10-26 | Thomas G Mosna | Method of and composition for impregnating porous metal castings |
| US3525399A (en) * | 1968-08-23 | 1970-08-25 | Exxon Production Research Co | Technique for insulating a wellbore with silicate foam |
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