US466277A - Charles mortimer lindsey - Google Patents
Charles mortimer lindsey Download PDFInfo
- Publication number
- US466277A US466277A US466277DA US466277A US 466277 A US466277 A US 466277A US 466277D A US466277D A US 466277DA US 466277 A US466277 A US 466277A
- Authority
- US
- United States
- Prior art keywords
- lindsey
- mortimer
- charles
- steel
- particles
- 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
- 239000002245 particle Substances 0.000 description 18
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000005520 cutting process Methods 0.000 description 10
- 238000000227 grinding Methods 0.000 description 10
- 238000005498 polishing Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000005496 tempering Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010791 quenching Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000171 quenching Effects 0.000 description 2
- 230000001603 reducing Effects 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
- C04B35/1115—Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets
Definitions
- My invention consists in an improved article of manufacture for the grinding, cutting, or polishing of stone, metal, and other hard substances; and it consists in small particles formed by fracture or crushing of hardened steel, such particles being subsequently tempered to impart to them greater toughness and durability.
- Such substance possesses many advantages. It is hard, very durable,
- The'particles may be of various sizes, varying from a powder to grains of a size adapted to pass through a No. 10 sieve. Its manner of use is similar to that practiced with other substances of a like nature.
- the fine powder is used as emery-powder is commonly used, and the grains maybe used with grinding-wheels, saws, or otherwise.
- I take pieces of steel-good crucible steel is the best for the purposeand harden them, preferablybyheatim them to a temperature of about 2,500 Fahrenheit, suflicient to burn the steel, and quench it by plunging it in cold water or in a tempering solution, a suitable mixture for the purpose being a solution of two quarts of common salt and one pound of soda in a gallon of water.
- a suitable mixture for the purpose being a solution of two quarts of common salt and one pound of soda in a gallon of water.
- Such burning and hardening make the steel very hard and brittle, giving it a crystalline granular structure.
- the steel particles are thentempered in any-suitable way,but preferably by the following mode: They are placed in a pan or in a receptacle of any other suitable form and are there heated to a temperature of about 460 Fahrenheit, until the particles change in appearance 'to a straw color, and they are t-hen'cooled by subjecting them to cold air, preferably forced upon the particles'by means of a. blast-fan or pump.
- This tempering changes not only the appearance of the particles, giving them a dull metallic luster, but also greatly improves their character, rendering them tougher and much more able than before to resist the crumbling and reducing action of grinding and cutting.
- the particles, either before or after the tempering may be separated into lots of diiferent sizes by passing them through proper sieves. After tempering the material is ready for use.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Description
UNITED STATEs PATENT OFFICE.
CHARLES MORTIMER LINDSEY, OF PITTSBURG, PENNSYLVANIA, ASSIG NOR TO THE PITTSBURG CRUSHED STEEL COMPANY, LIMITED, OF SAME PLACE.
cu'r'rme, GRINDING, AND POLISHING MATERIAL.
SPECIFICATION forming part of Letters Patent No. 466,277, dated December 29, 1891.
Application filed April 16,1891. Serial No. 389,068. (lilo specimens.)
.To all whom it may concern:
Be it known that I, CHARLES MORTIMER LINDSEY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have 'inventeda new and useful Improvement in Cutting, Grinding, and Polishing Material, of which the following is a full, clear, and exact description.
My invention consists in an improved article of manufacture for the grinding, cutting, or polishing of stone, metal, and other hard substances; and it consists in small particles formed by fracture or crushing of hardened steel, such particles being subsequently tempered to impart to them greater toughness and durability. Such substance possesses many advantages. It is hard, very durable,
. and performs the work of cutting, grinding,
and polishing very rapidly. The'particles may be of various sizes, varying from a powder to grains of a size adapted to pass through a No. 10 sieve. Its manner of use is similar to that practiced with other substances of a like nature. For example, the fine powder is used as emery-powder is commonly used, and the grains maybe used with grinding-wheels, saws, or otherwise.
-I shall now describethe mode of man ufacture of this substance which I prefer to employ, premising, however, that the invention is'not limited to any particular process of hardening the steel nor to crushing or fracto ring machinery of any one pattern.
I take pieces of steel-good crucible steel is the best for the purposeand harden them, preferablybyheatim them to a temperature of about 2,500 Fahrenheit, suflicient to burn the steel, and quench it by plunging it in cold water or in a tempering solution, a suitable mixture for the purpose being a solution of two quarts of common salt and one pound of soda in a gallon of water. Such burning and hardening make the steel very hard and brittle, giving it a crystalline granular structure. I then place the steel under a hammer or crushing-machine and subject it to repeated blows until it isreduced to smallparticles, which may be of various sizes, from the form of a fine powder to that of grains such as above mentioned. The steel particles are thentempered in any-suitable way,but preferably by the following mode: They are placed in a pan or in a receptacle of any other suitable form and are there heated to a temperature of about 460 Fahrenheit, until the particles change in appearance 'to a straw color, and they are t-hen'cooled by subjecting them to cold air, preferably forced upon the particles'by means of a. blast-fan or pump. This tempering changes not only the appearance of the particles, giving them a dull metallic luster, but also greatly improves their character, rendering them tougher and much more able than before to resist the crumbling and reducing action of grinding and cutting. The particles, either before or after the tempering, may be separated into lots of diiferent sizes by passing them through proper sieves. After tempering the material is ready for use.
' I claim As a new article of manufacture, a cutting, grinding, or polishing material composed of tempered particles of fractured steel which has been crystallized byheatingto a burnt temperature and quenching, substantially as and for the purposes deseribed. I
In testimony whereof I have hereunto set my handthis 11th day April, A. D.'189l.
CHARLES MORTIMER. LINDSEY. Witnesses:
Enw. A. HEss, M. M. KANN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US466277A true US466277A (en) | 1891-12-29 |
Family
ID=2535141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US466277D Expired - Lifetime US466277A (en) | Charles mortimer lindsey |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US466277A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2666282A (en) * | 1951-04-19 | 1954-01-19 | Osborn Mfg Co | Method of conditioning metal sheets, strips, rods, and the like |
| US4190422A (en) * | 1977-05-24 | 1980-02-26 | Bethlehem Steel Corporation | Metallic abrasive produced from a steel mill waste material |
-
0
- US US466277D patent/US466277A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2666282A (en) * | 1951-04-19 | 1954-01-19 | Osborn Mfg Co | Method of conditioning metal sheets, strips, rods, and the like |
| US4190422A (en) * | 1977-05-24 | 1980-02-26 | Bethlehem Steel Corporation | Metallic abrasive produced from a steel mill waste material |
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