US106923A - Improvement in liquid slating for forming black-boards - Google Patents
Improvement in liquid slating for forming black-boards Download PDFInfo
- Publication number
- US106923A US106923A US106923DA US106923A US 106923 A US106923 A US 106923A US 106923D A US106923D A US 106923DA US 106923 A US106923 A US 106923A
- Authority
- US
- United States
- Prior art keywords
- slating
- liquid
- boards
- improvement
- forming black
- 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 title description 14
- QDOXWKRWXJOMAK-UHFFFAOYSA-N Chromium(III) oxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000010454 slate Substances 0.000 description 6
- 229920001800 Shellac Polymers 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000006233 lamp black Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229940113147 shellac Drugs 0.000 description 4
- 235000013874 shellac Nutrition 0.000 description 4
- 239000004208 shellac Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 2
- 230000001771 impaired Effects 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VASIZKWUTCETSD-UHFFFAOYSA-N oxomanganese Chemical compound [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000008262 pumice Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/16—Writing inks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/10—Writing surfaces thereof
Definitions
- This invention consists in compounding alcohol, shellac, pulverized pumice stone, ironblack, lamp-black, manganese, and chrome-green, to form a liquid for coattng or slating black-boards, and for other purposes.
- dead-black color, non-reflective so that characters written or marked upon a board or wall coated with it may be seen with distinctuess from any point in a room regardless of the angle at which the light may strike such surface. It makes as smooth a surface as the best natural slate, and its smoothness is not easily impaired, whether writing upon it with chalk, crayon,
Description
dialled glam WILLIAM WI DUDLEY, OF
O ENTREVILLE, IN DIANA;
Letters Patent No. 106,923, dated August 30, 1870.
IMPROVEMENT IN LIQUID SLATING- FOR FORMING- BLACK-BOARDS, 8m.
The Schedule referred to in these Letters Pafent and making pa t f th same To all whom. it may concern Be it known that I, WILLIAM W. DUDLEY, of Oentreville, in the county of Wayne and State of Indiana, have invented a certain Compound called Liquid Slating, to be used for coating or slating blackboards, and for other similar purposes.
The nature ofthis invention consists in compounding alcohol, shellac, pulverized pumice stone, ironblack, lamp-black, manganese, and chrome-green, to form a liquid for coattng or slating black-boards, and for other purposes. I
To prepare this liquid slating, take about one gallon of alcohol to dissolve one and a quarter pounds of orange shellac, and mix two parts of this solution with one part of a compound prepared by the admixture of about one and a halt pounds of pulverized pinnice-stone; one and a half pounds of ivroy-blacky tln'ee-quarters of a pound of best lamp-black two ounces of manganese; four ounces of dark chrome green with a suificient quantity of alcohol, say about one-halt gallon, to give it the consistency of paste.
The combination, in about the proportions stated, forms the liquid slatiug ready for use.
It will be found that it possesses qualities far superior to any substance for similar purposes now in use, giving to the surface to which it may be applied, a
dead-black color, non-reflective, so that characters written or marked upon a board or wall coated with it may be seen with distinctuess from any point in a room regardless of the angle at which the light may strike such surface. It makes as smooth a surface as the best natural slate, and its smoothness is not easily impaired, whether writing upon it with chalk, crayon,
or slate=pencil; nor will it peel off by reason of exposure or after using it for some time.
It is applicable to pasteboard to form an elastic slate, and can, in that form, he used for'a great variety of purposes, which will readily suggest themselves to'any one skilled in the art.
What I claim as my invention, and desire to secure by Letters Patent, is-q The manufacture or preparation of'a compound, which is denominated liquid slating, of theingredients in subsiantiallythe proportions, and for the purposes set forth.
In testimony whereof I have signed my name to this sp dlfication in the presence of two subscribing witn es.
WILLIAM W. DUDLEY. Witnesses WM. H. LYNDE, HENRY 0'. Fox.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US106923A true US106923A (en) | 1870-08-30 |
Family
ID=2176399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US106923D Expired - Lifetime US106923A (en) | Improvement in liquid slating for forming black-boards |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US106923A (en) |
-
0
- US US106923D patent/US106923A/en not_active Expired - Lifetime
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