US2340386A - Lapping tool - Google Patents
Lapping tool Download PDFInfo
- Publication number
- US2340386A US2340386A US454995A US45499542A US2340386A US 2340386 A US2340386 A US 2340386A US 454995 A US454995 A US 454995A US 45499542 A US45499542 A US 45499542A US 2340386 A US2340386 A US 2340386A
- Authority
- US
- United States
- Prior art keywords
- lap
- finishing
- lapping tool
- mercury
- weight
- 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
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
- B24B37/12—Lapping plates for working plane surfaces
- B24B37/14—Lapping plates for working plane surfaces characterised by the composition or properties of the plate materials
Definitions
- my invention is an improvement upon that of Arch W. Harris as described in his application of even date, Serial No. 454,996, which application discloses what is known as an intermediate lap for finishing hard metal rolls and the like.
- My invention comprises a modification of the lap ofthe said application to provide a finishing lap capable of producing'a highly uniform and smooth finish or polish as a final finish upon hardened steel and the like.
- the finishing lap like the aforesaid intermediate lap, is deliquescent, and may be used with water containing the abrasive grain for producing a final highly polished finish following the use of said intermediate lap.
- My finishing lap and composition may contain from about 1% to 3% by weight 01 the group metal with from 28% to 33% of mercury by weight, the balancebeing lead. The addition of the mercuryimparts the proper quality to the composition and tool for successful operation for the purposes stated.
- a composition containing about 3% metallic sodium, 33% mercury, and 64% lead may be employed with fine abrasive grain and water to produce an excellent smooth and uniform finish.
- a finishing lap consisting of lead containing from about 1% to 3% by weight of one of the group consisting of metallic sodium, potassium and calcium, and from 28% to 33% mercury by weight, molded into block form, characterized by possessing deliquescence when employed in the presence of water.
- a finishing lap consisting of lead containing about 3% sodium and 33% mercury by weight, molded into block form, characterized by possessing deliquescence when employed in the presence of water.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
Patented Feb. 1, 1944 LAPPING TOOL Foster F. Hillix, Lakewood, Ohio, assignor to The American Steel and Wire Company of New Jersey, a corporation of New Jersey No Drawing. Application August 15, 1942,
Serial No. 454,995
2 Claims. (Cl. 51-309) This invention relates to improvements in lapping tools and the like.
More particularly, my invention is an improvement upon that of Arch W. Harris as described in his application of even date, Serial No. 454,996, which application discloses what is known as an intermediate lap for finishing hard metal rolls and the like.
My invention comprises a modification of the lap ofthe said application to provide a finishing lap capable of producing'a highly uniform and smooth finish or polish as a final finish upon hardened steel and the like.
For this purpose, to a composition of lead and .one of the group consisting of metallic sodium, potassium or calcium, I have added mercury, whereby the resulting alloy affords an excellent lap when molded into block form for finishing operations upon hardened steel metal-working rolls and the like. The said finishing lap, like the aforesaid intermediate lap, is deliquescent, and may be used with water containing the abrasive grain for producing a final highly polished finish following the use of said intermediate lap.
My finishing" lap and composition may contain from about 1% to 3% by weight 01 the group metal with from 28% to 33% of mercury by weight, the balancebeing lead. The addition of the mercuryimparts the proper quality to the composition and tool for successful operation for the purposes stated.
As a specific example of such a "finishing lap, a composition containing about 3% metallic sodium, 33% mercury, and 64% lead may be employed with fine abrasive grain and water to produce an excellent smooth and uniform finish.
Various modifications and changes are contemplated within the scope of the following claims:
I claim:
1. A finishing lap consisting of lead containing from about 1% to 3% by weight of one of the group consisting of metallic sodium, potassium and calcium, and from 28% to 33% mercury by weight, molded into block form, characterized by possessing deliquescence when employed in the presence of water.
2. A finishing lap consisting of lead containing about 3% sodium and 33% mercury by weight, molded into block form, characterized by possessing deliquescence when employed in the presence of water.
FOSTER F. HILLIX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US454995A US2340386A (en) | 1942-08-15 | 1942-08-15 | Lapping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US454995A US2340386A (en) | 1942-08-15 | 1942-08-15 | Lapping tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2340386A true US2340386A (en) | 1944-02-01 |
Family
ID=23806931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US454995A Expired - Lifetime US2340386A (en) | 1942-08-15 | 1942-08-15 | Lapping tool |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2340386A (en) |
-
1942
- 1942-08-15 US US454995A patent/US2340386A/en not_active Expired - Lifetime
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