US665229A - Non-conducting lining or covering. - Google Patents
Non-conducting lining or covering. Download PDFInfo
- Publication number
- US665229A US665229A US3657598A US1898036575A US665229A US 665229 A US665229 A US 665229A US 3657598 A US3657598 A US 3657598A US 1898036575 A US1898036575 A US 1898036575A US 665229 A US665229 A US 665229A
- Authority
- US
- United States
- Prior art keywords
- covering
- fiber
- lining
- flax
- conducting
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
Definitions
- My invention relates to the manufacture of an improved non-conducting lining for refrigerator-cars,cold-storage apartments, heated surfaces, and the like; and the object is to provide a cheap, effective, and durable lining of this character.
- the invention consists in a lining or covering formed of the purified cellulose fiber of the flax and a suitable filler, as will be hereinafter more fully described, and particularly pointed out in the claims.
- the percentage, by weight, of the ingredients found by practical tests to be the best for the above uses is one of fiax fiber to, two
- the chemical treatment preferred, to which the cellulose fiber is subjected is a chemical treatment of a combination under certain ratios or proportions of caustic soda and sulfur in solution, which naturally wets the fiber or any material into the composition of which it enters.
- the flax fiber and the vegetable tissue are first made wet and then mixed together before being treated chemically, as above stated, and when applied as a covering to steam-pipes or as a lining for refrigerators or cold-storage compartments or apartments forms a perfect non-conductor of heat or cold to and from the article which has been lined or covered with said non-conducting material.
- the filler which is preferably a partially-disintegrated vegetable tissue, in which the lignins and resins are present, after which the mass is drained, molded, pressed into any desired shape, and dried.
- the resulting material is light, porous, very strong and flexible, and is very desirable for the above uses, and is one that overcomes many, if not all, of the difficulties of and objections to other materials used for the above purposes, inasmuch as it is selfsustaining and odorless.
- the material When the material is to be used as a nonconducting covering for insulating heated surfaces, I prefer to substitute as a filler some fireproof material in place of the disintegrated vegetable tissue, as per the above percentage of weights, or the material itself may be rendered fireproof or waterproof by proper treatment with any recognized agent employed for such purposes.
- the fiber of the flax is cylindrical and hollow, and the chemical treatment to which it is previously subjected preserves its strength and structure, thoroughly removes the lignose, lignin, lignone, and lignireose, as well as the gums and carbohydrates whichincrust and impregnate the cell walls and interstices, as well as the hollow inside of the tube of a raw or untreated cellulose fiber, and which by their presence greatly reduce its non-conductivity.
- each hollow cylindrical fiber of the flax becomes an air-cell infinitely small; but the innumerable aircells thus present in a mass of this fiber makes it a most perfect non-conductor of heat and cold.
- heated surfaces consisting of a mixture of degummed and delignated cellulose fiber of flax combined with a filler of partially-disintegrated vegetable tissue,substantially as specified.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
UNITED STATES PATENT FFICE.
GEORGE KELLY, OF MINERAL POINT, WISCONSIN.
NON-CONDUCTING LINING OR COVERING.
SPECIFICATION forming part of Letters Patent N 0. 665,229, dated January 1, 1901.
Application fil d October 18, 1898. Renewed November 15, 1900. serial No. 36,575. (No specimens.)
To all whom, it may concern.-
Be it known that I, GEORGE KELLY, a citizen of the United States, residing at Mineral Point, in the county of Iowa and State of Wisconsin, have invented certain new and useful Improvements in Non-Conducting Linings or Coverings; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to the manufacture of an improved non-conducting lining for refrigerator-cars,cold-storage apartments, heated surfaces, and the like; and the object is to provide a cheap, effective, and durable lining of this character.
To this end the invention consists in a lining or covering formed of the purified cellulose fiber of the flax and a suitable filler, as will be hereinafter more fully described, and particularly pointed out in the claims.
The percentage, by weight, of the ingredients found by practical tests to be the best for the above uses is one of fiax fiber to, two
of disintegrated vegetable tissue; but this proportion may be varied somewhat, according to'the uses to which the material is to be put, without departing from the spirit of my invention.
In preparing my improved lining I first take the above-named purified cellulose fiber and by means of suitable-and usual devices for a like purpose treat it until it is finely separated. The chemical treatment preferred, to which the cellulose fiber is subjected, is a chemical treatment of a combination under certain ratios or proportions of caustic soda and sulfur in solution, which naturally wets the fiber or any material into the composition of which it enters. The flax fiber and the vegetable tissue, such as woodpulp, are first made wet and then mixed together before being treated chemically, as above stated, and when applied as a covering to steam-pipes or as a lining for refrigerators or cold-storage compartments or apartments forms a perfect non-conductor of heat or cold to and from the article which has been lined or covered with said non-conducting material. I then add the filler, which is preferably a partially-disintegrated vegetable tissue, in which the lignins and resins are present, after which the mass is drained, molded, pressed into any desired shape, and dried. The resulting material is light, porous, very strong and flexible, and is very desirable for the above uses, and is one that overcomes many, if not all, of the difficulties of and objections to other materials used for the above purposes, inasmuch as it is selfsustaining and odorless.
When the material is to be used as a nonconducting covering for insulating heated surfaces, I prefer to substitute as a filler some fireproof material in place of the disintegrated vegetable tissue, as per the above percentage of weights, or the material itself may be rendered fireproof or waterproof by proper treatment with any recognized agent employed for such purposes.
Owing to the peculiarities of the cellulose fiber derived from the flax, it is evident that a material of which this is a component part will have a greater strength and resiliency with less weight than any of the wood or straw pulp mixtures on account of the greater length and strength of its fiber and the filaments composing them, the stalks of the flax being out into appropriate lengths for the purpose, the fiber maintaining its length and strength in said cuts of said stalks thus previouslyprepared. Thehigh non-conductivity of this fiber (or any material into the composition of which it enters) is a fact sequent upon its structure and treatment. The fiber of the flax is cylindrical and hollow, and the chemical treatment to which it is previously subjected preserves its strength and structure, thoroughly removes the lignose, lignin, lignone, and lignireose, as well as the gums and carbohydrates whichincrust and impregnate the cell walls and interstices, as well as the hollow inside of the tube of a raw or untreated cellulose fiber, and which by their presence greatly reduce its non-conductivity. By this treatment each hollow cylindrical fiber of the flax becomes an air-cell infinitely small; but the innumerable aircells thus present in a mass of this fiber makes it a most perfect non-conductor of heat and cold.
Having thus fully described my invention,
heated surfaces, or for refrigerator-surfaces, or the like, consisting of a mixture of degummed and delignated cellulose fiber of flax combined with a filler of partially-disintegrated vegetable tissue,substantially as specified.
In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.
GEORGE KELLY.
Witnesses:
PHIL ALLEN, J 1., FRANK E. HANSOOM.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3657598A US665229A (en) | 1898-10-18 | 1898-10-18 | Non-conducting lining or covering. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3657598A US665229A (en) | 1898-10-18 | 1898-10-18 | Non-conducting lining or covering. |
Publications (1)
Publication Number | Publication Date |
---|---|
US665229A true US665229A (en) | 1901-01-01 |
Family
ID=2733785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3657598A Expired - Lifetime US665229A (en) | 1898-10-18 | 1898-10-18 | Non-conducting lining or covering. |
Country Status (1)
Country | Link |
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US (1) | US665229A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486601A (en) * | 1946-04-27 | 1949-11-01 | Jesse M Irwin | Process of producing a molding powder |
US2552597A (en) * | 1947-07-09 | 1951-05-15 | Donald F Othmer | Process of making a molded article from lignocellulose |
US2587930A (en) * | 1947-07-30 | 1952-03-04 | Cascades Plywood Corp | Method of and apparatus for extruding |
US2692206A (en) * | 1951-05-11 | 1954-10-19 | Donald F Othmer | Process of making water-resistant molded lignocellulose |
US3892706A (en) * | 1969-02-06 | 1975-07-01 | Jetzer Eng Ag | Method of processing refuse for conversion into shaped bodies |
-
1898
- 1898-10-18 US US3657598A patent/US665229A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486601A (en) * | 1946-04-27 | 1949-11-01 | Jesse M Irwin | Process of producing a molding powder |
US2552597A (en) * | 1947-07-09 | 1951-05-15 | Donald F Othmer | Process of making a molded article from lignocellulose |
US2587930A (en) * | 1947-07-30 | 1952-03-04 | Cascades Plywood Corp | Method of and apparatus for extruding |
US2692206A (en) * | 1951-05-11 | 1954-10-19 | Donald F Othmer | Process of making water-resistant molded lignocellulose |
US3892706A (en) * | 1969-02-06 | 1975-07-01 | Jetzer Eng Ag | Method of processing refuse for conversion into shaped bodies |
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