US318957A - Art of recutting files - Google Patents
Art of recutting files Download PDFInfo
- Publication number
- US318957A US318957A US318957DA US318957A US 318957 A US318957 A US 318957A US 318957D A US318957D A US 318957DA US 318957 A US318957 A US 318957A
- Authority
- US
- United States
- Prior art keywords
- files
- recutting
- art
- bath
- sawdust
- 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
- 239000002253 acid Substances 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L Copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000010699 lard oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 238000010792 warming Methods 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/06—Sharpening files
Definitions
- Nhen files are discarded in machine and other shops, they are generally covered to a greater or less degree with oil and loaded to a greater or less degree with fine metallic particles.
- the first step in treating them is to clean the teeth of the files with a wire brush, so as to remove, substantially, all of said fine metallic particles.
- the next step is to place the files in a solution of hot water and sal-soda for a few minutes, in order to remove the oil, after the fashion that is common in removing
- the next step in the treatment of the files is to dry them in sawdust-,and afterward remove what sawdust remains clinging to them with a brush of bristles or the like.
- the next step in treating the files is to immerse them in a saturated solution of blue vitriol (sulphate of copper) and copperas (protosulphate of iron) in water until the files present to the eye the general appearance of a copper surface.
- the files are then taken from this bath and placed in another bath composed of sulphuric acid and wateryof sub stantially the strength used for pickling castings-say one-fifth acid to four-fifths waterand there allowed to remain in this acid bath until the surface of the files looks black to the eye. ened by warming the bath.
- the essential steps in this process are the coating of the file with copper and the subsequent submission to the acid bath;
- the working of this bath may be hast-
Description
-oil from metallic articles.
UNITED STATES Pn'rnnr Cement LUKE CHAPMAN, 0F COLLINSVILLE, CONNECTICUT.
ART OF RECUTTING FILES.
SPECIFICATION forming part of Letters Patent No. 318,957, dated June 2, 1885.
Application filed March 11, 18%5. (No specimens.)
To all whom it may concern.-
Be it known that I, LUKE CHAPMAN, of Collinsville, in the county of Hartford and State of Connecticut, have invented a certain new and useful Improvement Applicable to the Recutting of Files, of which the following is a description.
This is an improvement applicable to the recutting of the steel files used by machinists and other mechanics after they have been once used as long as it is generally profitable to use them. It is not intended by the practice of this improvement to wholly create new teeth upon such files, but to so treat the teeth of files that are worn and blunted by use that they shall be resharpened and fit for further use.
Nhen files are discarded in machine and other shops, they are generally covered to a greater or less degree with oil and loaded to a greater or less degree with fine metallic particles. The first step in treating them is to clean the teeth of the files with a wire brush, so as to remove, substantially, all of said fine metallic particles. The next step is to place the files in a solution of hot water and sal-soda for a few minutes, in order to remove the oil, after the fashion that is common in removing The next step in the treatment of the filesis to dry them in sawdust-,and afterward remove what sawdust remains clinging to them with a brush of bristles or the like. The next step in treating the files is to immerse them in a saturated solution of blue vitriol (sulphate of copper) and copperas (protosulphate of iron) in water until the files present to the eye the general appearance of a copper surface. The files are then taken from this bath and placed in another bath composed of sulphuric acid and wateryof sub stantially the strength used for pickling castings-say one-fifth acid to four-fifths waterand there allowed to remain in this acid bath until the surface of the files looks black to the eye. ened by warming the bath.
On taking the files from the acid bath they may well be dipped in weak lime-water to neutralize any acid remaining upon them after which they are dried in sawdust. In taking them from the sawdust it is well to brush off any sawdust which remains clinging to them with a brush of bristles or the like, after which they should be oiled, which may well be done by dipping them into warm lard-oil,
and allowing so much of the oil as will to drain away from them. The files are now ready for use.
The essential steps in this process are the coating of the file with copper and the subsequent submission to the acid bath; and
I claim as my improvement- The art of recutting files which consists in coating the file with copper,and then submitting it to the action of an acid bath, substantially as herein described.
LUKE CHAPMAN.
Witnesses:
A. O. TANNE-R, H. B. WILLIaMs.
The working of this bath may be hast-
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US318957A true US318957A (en) | 1885-06-02 |
Family
ID=2388102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US318957D Expired - Lifetime US318957A (en) | Art of recutting files |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US318957A (en) |
-
0
- US US318957D patent/US318957A/en not_active Expired - Lifetime
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