US4357A - Improvement in preparing caoutchouc previous to grinding - Google Patents
Improvement in preparing caoutchouc previous to grinding Download PDFInfo
- Publication number
- US4357A US4357A US4357DA US4357A US 4357 A US4357 A US 4357A US 4357D A US4357D A US 4357DA US 4357 A US4357 A US 4357A
- Authority
- US
- United States
- Prior art keywords
- grinding
- preparing
- caoutchouc
- previous
- improvement
- 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
- 229920001195 polyisoprene Polymers 0.000 title description 10
- 241000779819 Syncarpia glomulifera Species 0.000 description 10
- 229940036248 Turpentine Drugs 0.000 description 10
- 239000001739 pinus spp. Substances 0.000 description 10
- 229940108066 Coal Tar Drugs 0.000 description 6
- 240000002027 Ficus elastica Species 0.000 description 6
- 239000011280 coal tar Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 235000015096 spirit Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
Definitions
- A Into another vessel, B, constructed of either metal or wood, and having a perforated false bottom or grating, D, about two inches from the bottom, and a steam-tight cover, E-the capacity of this'vessel may be two hundred gallonsI place on said grating about one hundred pounds of India-rubber out into small pieces.
- These two vessels A and B are connected by a pipe, 0, leading from the top of A, and inserted under the grating of B. By the application of heat to the vessel it fit for grinding.
- A a decomposition of the crude turpentine or coal-tar is effected.
- WVhen crude turpentine is used, the vapor or gas is spirits of turpentine. naphtha is generated. Either of these vapors,
Description
UNITED STATES PATENT OF ICE.
J. W. HARMON, OF NEW YORK, N. Y.
IMPROVEMENT IN PREPARING CAOUTCHOUC PREVIOUS T0 GRINDING.
Specification forming part of Letters Patent No. 1.357. dated January 15,1846.
To It whom, it mag concern:
Be it known that I, JOSEPH W. HARMON, of the city, county, and State of New York, have invented a new and improved method of softening the article known in commerce as India-Rubber or Oaoutchouc, and preparing it for grinding; and I do declare that the following is a full and exact description.
To enable those skilled in the art to make and use my invention, I will proceed to describe the construction of the apparatus and its operation. 7
I construct a vessel, of metal, A, of one hundred gallons measure, with a steam-tight lidl Into this vessel A, I put one barrel of crude turpentine or coal-tar and about forty gallons of water. Into another vessel, B, constructed of either metal or wood, and having a perforated false bottom or grating, D, about two inches from the bottom, and a steam-tight cover, E-the capacity of this'vessel may be two hundred gallonsI place on said grating about one hundred pounds of India-rubber out into small pieces. These two vessels A and B are connected by a pipe, 0, leading from the top of A, and inserted under the grating of B. By the application of heat to the vessel it fit for grinding.
A, a decomposition of the crude turpentine or coal-tar is effected. WVhen crude turpentine is used, the vapor or gas is spirits of turpentine. naphtha is generated. Either of these vapors,
along with the steam whichis generated in the vessel A, passing through the tube 0 and under the false bottom of the vessel B, acts on the India-rubber, so as to soften it and render From one to three hours of exposure to the vapors of steam and naphtha or turpentine will be sufficient to effect the Y NVhen coal-tar is used, the vapor of
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US4357A true US4357A (en) | 1846-01-15 |
Family
ID=2064658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US4357D Expired - Lifetime US4357A (en) | Improvement in preparing caoutchouc previous to grinding |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US4357A (en) |
-
0
- US US4357D patent/US4357A/en not_active Expired - Lifetime
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