US309150A - Emile p - Google Patents
Emile p Download PDFInfo
- Publication number
- US309150A US309150A US309150DA US309150A US 309150 A US309150 A US 309150A US 309150D A US309150D A US 309150DA US 309150 A US309150 A US 309150A
- Authority
- US
- United States
- Prior art keywords
- powder
- cement
- emile
- binders
- ground
- 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
- 239000000463 material Substances 0.000 description 20
- 239000000843 powder Substances 0.000 description 20
- 239000011230 binding agent Substances 0.000 description 12
- 238000000465 moulding Methods 0.000 description 10
- 239000004568 cement Substances 0.000 description 8
- 235000019738 Limestone Nutrition 0.000 description 6
- 239000011398 Portland cement Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 239000006028 limestone Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 4
- 229910052570 clay Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011449 brick Substances 0.000 description 2
- 235000012970 cakes Nutrition 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- -1 culm Substances 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000000266 injurious Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 239000002023 wood 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
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
Definitions
- Portland cement manufactured by what is known among those skilled in the industry as IO the dry process is a product of the following composition: Limestone and clay, chalk or clay, or other similar materials are ground in the raw condition into powder. This powder is then wetted and made into bricks or I 5 cakes,which,after being dried on dryingfloors or steam-tables, are placed by hand within kilns,where they are burned to clinker. This clinker is subsequently ground, and is in its ground condition ready for the market.
- my invention consists in the provision of means whereby the cementpowder maybe kept in a granulated condition before it goes upon the rolls or molds, thus insuring perfect molding.
- Such result I find 40 can be accomplished by the use of what may be termed binders, composed of coke-dust, coal, culm, raw cement-rock, raw limestone, or other similar material larger in size than the powder with which they are to be mixed.
- binders which are preferably of material having rough surfaces,are mixed with the cement-powder before the molding operation. The entire mass is then moistened in such de gree only as not to affect the granulated condition.
- the moistened granulated material is then fed onto rolls or other molding machinery,the molded lumps then burned to a clinker in kilns, and then ground into cement.
- the effect of the binders is to render the fine ground powder more granular, and to prevent it when moistened from getting into such pasty condition as would cause it to stick in the molds. They have, moreover. the further mechanical function of acting as binders, wedges, or ties, holding the material together when being molded and after it is molded.
- IVhite coal, culm, coke dust, or sawdust may, byreason of their advantageous form, and also because they leave no injurious material behind after the burning to affect the quality of the cement, be used as binders. I do not confine myself to them alone, as cut wood shavings,cut straw,cut hay,and other kindred material may also be employed.
- the object of my invention may be attained by taking from the crushers where the raw cement materials are crushed a suitable portion of the crushed stone or chalk in 7 5 its rough condition before grinding, and adding it before moistening and molding to the cement-powder, the object in all cases being to incorporate with such powder rough material of larger size than the granules of powder, to act as binding-wedges.
Description
lint-ran hra'rns PATENT rerun...
EMILE F. LOISEAU, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO J. PERCY KEA'IING, TRUSTEE.
ART OF MANUFACTURING PORTLAND CEMENT.
SPECIFICATION forming part of Letters Patent No.309,150, dated December-9,1884,
Application filed June 19, 1884. (No specimens.)
T on whom it may concern: I
Be it known that I, EMILE F. LOISEAU, of the city and county of Philadelphia, and State of Pennsylvania, have invented .a new and useful Improvement in the Art of Manufacturing Portland Cement, of which the following is a specification.
Portland cement manufactured by what is known among those skilled in the industry as IO the dry process is a product of the following composition: Limestone and clay, chalk or clay, or other similar materials are ground in the raw condition into powder. This powder is then wetted and made into bricks or I 5 cakes,which,after being dried on dryingfloors or steam-tables, are placed by hand within kilns,where they are burned to clinker. This clinker is subsequently ground, and is in its ground condition ready for the market.
I am aware that under Letters Patent No. 292,329, granted January 20, 1884, to Robert W. Lesley and James M. \Villcox, egg-shaped, hexagonahor rounded lumps or balls obtained by compressing moistened cement-powder l1 ave been substituted for the square-sided pieces formerly used, and with great advantage. In their process, however, where the material is 'too finely ground or too much moistened, it
often clogs and sticks to the rolls and molds used, thus causing delays and imperfect mold- My invention has for its object the obviating of this difficulty, and is an improvement upon the invention referred to.
Generally stated, my invention consists in the provision of means whereby the cementpowder maybe kept in a granulated condition before it goes upon the rolls or molds, thus insuring perfect molding. Such result I find 40 can be accomplished by the use of what may be termed binders, composed of coke-dust, coal, culm, raw cement-rock, raw limestone, or other similar material larger in size than the powder with which they are to be mixed. These binders,which are preferably of material having rough surfaces,are mixed with the cement-powder before the molding operation. The entire mass is then moistened in such de gree only as not to affect the granulated condition. The moistened granulated materialis then fed onto rolls or other molding machinery,the molded lumps then burned to a clinker in kilns, and then ground into cement. As will be readily perceived, the effect of the binders, by reason of theirlarger size, is to render the fine ground powder more granular, and to prevent it when moistened from getting into such pasty condition as would cause it to stick in the molds. They have, moreover. the further mechanical function of acting as binders, wedges, or ties, holding the material together when being molded and after it is molded.
IVhite coal, culm, coke dust, or sawdust may, byreason of their advantageous form, and also because they leave no injurious material behind after the burning to affect the quality of the cement, be used as binders. I do not confine myself to them alone, as cut wood shavings,cut straw,cut hay,and other kindred material may also be employed.
IVhen it is not desirable to use the above materials, the object of my invention may be attained by taking from the crushers where the raw cement materials are crushed a suitable portion of the crushed stone or chalk in 7 5 its rough condition before grinding, and adding it before moistening and molding to the cement-powder, the object in all cases being to incorporate with such powder rough material of larger size than the granules of powder, to act as binding-wedges.
Having thus described my invention and the best known means of carrying it into effect, what I claim, and desire to secure by Letters Patent, is-
The granulation of cementpowder before the molding operation by the addition thereto of binders or wedges of larger size than the grains composing the powder, and composed, preferably, of coke-dust, coal, culm, or raw cement or limestone,substantially as set forth.
In testimony whereof I have hereunto signed my name this 17th day of June, A. D. 1884.
EMILE F. v LOISEAU.
In presence of J. BONSALL TAYLOR,
W. G. Srnliwnnrnen.
Publications (1)
Publication Number | Publication Date |
---|---|
US309150A true US309150A (en) | 1884-12-09 |
Family
ID=2378314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US309150D Expired - Lifetime US309150A (en) | Emile p |
Country Status (1)
Country | Link |
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US (1) | US309150A (en) |
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0
- US US309150D patent/US309150A/en not_active Expired - Lifetime
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