US511740A - Process of manufacturing retarders for plaster - Google Patents
Process of manufacturing retarders for plaster Download PDFInfo
- Publication number
- US511740A US511740A US511740DA US511740A US 511740 A US511740 A US 511740A US 511740D A US511740D A US 511740DA US 511740 A US511740 A US 511740A
- Authority
- US
- United States
- Prior art keywords
- plaster
- manufacturing
- same
- retarders
- mixture
- 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
- 239000011505 plaster Substances 0.000 title description 22
- 238000004519 manufacturing process Methods 0.000 title description 12
- 238000000034 method Methods 0.000 title description 12
- 239000000203 mixture Substances 0.000 description 20
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 8
- 235000015450 Tilia cordata Nutrition 0.000 description 8
- 235000011941 Tilia x europaea Nutrition 0.000 description 8
- 239000004571 lime Substances 0.000 description 8
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 4
- 239000002956 ash Substances 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000011507 gypsum plaster Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 239000006071 cream Substances 0.000 description 2
- -1 dour Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000000979 retarding Effects 0.000 description 2
- 238000003756 stirring Methods 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
- C04B24/14—Peptides; Proteins; Derivatives thereof
Definitions
- My invention relates to a process of combining certain ingredients in the manufacture of a setting-retarder for wall plaster; and my invention consists in certain features of novelty hereinafter described and pointed out in the claim.
- plaster when the same has been prepared to the proper consistency for using, it shortly begins to solidify or harden, and becomes unfit for use.
- I prepare a mixture which, when applied to the plaster proper retards the solidification to a greater or less degree, according to the amount of the mixture used, so the plaster can be prepared beforehand to be used at any length of time required after the same has been prepared.
- the steps taken and proportions used in my process are substantially as follows: One hundred pounds of lime is first air-slaked and kept in an air-tight receptacle for at least six months in order to add strength to the lime. Then I mix water with the lime, bringing the same to the consistency of cream, to which mixture I add fifty pounds of flour, fifty pounds of liquid glue and five pounds of wood ashes, bringing the mixture to the consistency of thick paste; after which, I place the same over a slow fire, stirring and. mixing it thoroughly until the compound has become dry, after which, I pulverize the same to a fine powder.
- the above mentioned compound or composition of material is to be used with plaster of paris and sand to make a wall plaster, the proportions being ten per cent. of the above mixture to every one hundred pounds of plaster of paris and sand, or changed according to circumstances, depending on the time it is desired to use the plaster after the same has been prepared. I can thus prepare my plaster to prevent solidification or hardening of the same and keep it in a plastic condition until it is desired touse the same. If considerable time is to elapse between the mixing and the using, then a greater amount than ten per cent. of the mixture described should be added to the plaster; but if intended to be used at once, ten per cent. of the mixture will hold the plaster in proper condition until it has been used.
- I claim as my invention- The process of manufacturing a retarding mixture, consisting of air-slaking lime, keeping the same in an air-tight receptacle for a considerable period, then mixing the same with water, dour, liquid glue and wood ashes to the consistency of thick paste, and then drying the same over a slow fire and thoroughly mixing the same until it becomes dry; substantially as herein described.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials For Medical Uses (AREA)
Description
UNITED STATES PATENT OFFICE.
JAMES R. MCILVRIED, OF KANSAS CITY, MISSOURI, ASSIGNOR TO THE AMERICAN SILIOAN COMPANY, OF OMAHA, NEBRASKA.
PROCESS OF MANUFACTURING RETARDERS FOR PLASTER.
SPECIFICATION forming part of Letters Patent No. 511,740, dated December 26, 1893.
Application filed October 4, 1892. Serial No. 447,818- (No specimens.)
T at whom it may concern:
Be it known that I, JAMES R. MCILVRIED, of Kansas City, in the county of Jackson and State of Missouri, have invented a certain new and useful Process of Manufacturing Retarders for Plaster, of which the following is a full, clear, and exact description.
My invention relates to a process of combining certain ingredients in the manufacture of a setting-retarder for wall plaster; and my invention consists in certain features of novelty hereinafter described and pointed out in the claim.
It is well known in manufacturing plaster that when the same has been prepared to the proper consistency for using, it shortly begins to solidify or harden, and becomes unfit for use. I prepare a mixture which, when applied to the plaster proper retards the solidification to a greater or less degree, according to the amount of the mixture used, so the plaster can be prepared beforehand to be used at any length of time required after the same has been prepared. I
The steps taken and proportions used in my process are substantially as follows: One hundred pounds of lime is first air-slaked and kept in an air-tight receptacle for at least six months in order to add strength to the lime. Then I mix water with the lime, bringing the same to the consistency of cream, to which mixture I add fifty pounds of flour, fifty pounds of liquid glue and five pounds of wood ashes, bringing the mixture to the consistency of thick paste; after which, I place the same over a slow fire, stirring and. mixing it thoroughly until the compound has become dry, after which, I pulverize the same to a fine powder.
The above mentioned compound or composition of material is to be used with plaster of paris and sand to make a wall plaster, the proportions being ten per cent. of the above mixture to every one hundred pounds of plaster of paris and sand, or changed according to circumstances, depending on the time it is desired to use the plaster after the same has been prepared. I can thus prepare my plaster to prevent solidification or hardening of the same and keep it in a plastic condition until it is desired touse the same. If considerable time is to elapse between the mixing and the using, then a greater amount than ten per cent. of the mixture described should be added to the plaster; but if intended to be used at once, ten per cent. of the mixture will hold the plaster in proper condition until it has been used.
I claim as my invention- The process of manufacturing a retarding mixture, consisting of air-slaking lime, keeping the same in an air-tight receptacle for a considerable period, then mixing the same with water, dour, liquid glue and wood ashes to the consistency of thick paste, and then drying the same over a slow fire and thoroughly mixing the same until it becomes dry; substantially as herein described.
JAMES R. MOILVRIED.
Witnesses:
JAMES E. KNIGHT, i F. E. MULLETT.
Publications (1)
Publication Number | Publication Date |
---|---|
US511740A true US511740A (en) | 1893-12-26 |
Family
ID=2580562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US511740D Expired - Lifetime US511740A (en) | Process of manufacturing retarders for plaster |
Country Status (1)
Country | Link |
---|---|
US (1) | US511740A (en) |
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0
- US US511740D patent/US511740A/en not_active Expired - Lifetime
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