US254199A - Process of preparing the surfaces of grinding-rolls - Google Patents
Process of preparing the surfaces of grinding-rolls Download PDFInfo
- Publication number
- US254199A US254199A US254199DA US254199A US 254199 A US254199 A US 254199A US 254199D A US254199D A US 254199DA US 254199 A US254199 A US 254199A
- Authority
- US
- United States
- Prior art keywords
- rolls
- grinding
- preparing
- sand
- corundum
- 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
- 238000000034 method Methods 0.000 title description 18
- 239000000463 material Substances 0.000 description 20
- 239000004576 sand Substances 0.000 description 14
- 229910052593 corundum Inorganic materials 0.000 description 12
- 239000010431 corundum Substances 0.000 description 12
- 229910001651 emery Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000004513 sizing Methods 0.000 description 4
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
Definitions
- My invention consists, first, in an improved mode or process of preparing grinding-rolls for flouring-mills, consisting in pressing sand, emery, corundum, or other analogous or equivalent material into the surfaces of smooth metal rolls, whereby a peculiar indented surface is given to the rolls, which renders them very effect-ive in grinding line middlings to flour or in sizing coarse middlings; and, secondly, in'a process of indenting smooth metal rolls, consisting in passing sand, corundum, or other like or equivalent material between a pair of such yrolls closely adjusted together.
- a pair ot'smooth metal rolls are adjusted very close together and rotated so that their proximate surfaces run in the same direction, and a quantity-otL sand, emery, corundum, or other like material is then run through between the rolls in s uch4 rolls and form very even indentations therein.
- This simple process forms a dress on lthe rolls that especially adapts them to the grinding of line middliugs into liour and to the sizing of coarse middlings, the granulation being made very even, and the material not being fiattened so much as by smooth rolls.
Description
(No Model,l
W. N. COSGROYE.
PROCESS. 0F PREPARINGTHB SURFAGES 0Fv GRINDING ROLLS. No. 254,199. Patented Feb. 28,1882.
@N8-Mmm Y 2,
N. PETERS. Fnuwmhognpher, Wnshinginn, D. c.
the accompanying drawing, forming a part of .manner as to be pressed into the surface of the UNITED STATES PATENT OFFICE@ WILLIAM N. COSGROVE, OF FARIBAULT, MINNESOTA.
PROCESS OF PREPARIVNG THE SURFACES OF GRlNDlNG-ROLL'S.
SPECIFICATION forming part of Letters Patent No. 254,199, dated February 28, 1882. Application filed November 2, 1881. (No model.)
To all whom it may concern:
Be it known that I, WTLLIAM N. CosGRovE, of Faribault, in the county of Rice and State of Minnesota, have invented a certain new and Improved Process of Preparing the Surfaces of Grinding-Rolls; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to this specification, in which the figure represents a pair of rolls prepared in accordance with my invention.
My invention consists, first, in an improved mode or process of preparing grinding-rolls for flouring-mills, consisting in pressing sand, emery, corundum, or other analogous or equivalent material into the surfaces of smooth metal rolls, whereby a peculiar indented surface is given to the rolls, which renders them very effect-ive in grinding line middlings to flour or in sizing coarse middlings; and, secondly, in'a process of indenting smooth metal rolls, consisting in passing sand, corundum, or other like or equivalent material between a pair of such yrolls closely adjusted together.
In carrying out my invention a pair ot'smooth metal rolls are adjusted very close together and rotated so that their proximate surfaces run in the same direction, and a quantity-otL sand, emery, corundum, or other like material is then run through between the rolls in s uch4 rolls and form very even indentations therein. This simple process forms a dress on lthe rolls that especially adapts them to the grinding of line middliugs into liour and to the sizing of coarse middlings, the granulation being made very even, and the material not being fiattened so much as by smooth rolls.
From practical test I have found that a pair of rolls can he perfectly dressed in a few mnutes by running twenty or thirty pounds of sand between them.
I do not desire to be limited to the use. of sand, emery, or corundum, or any combination of these materials in carrying out myprocess, as other materials and combinations of materialsmay be effectively employed. Nor do I desire to be limited to the pressing of the material into the surfaces ofthe rolls by passing it between them, as the rolls to be dressed mayV be pressed against any kind or shape of surface covered with the indenting material with the same effect.
I claim as my invention- 1. The herein-described mode or process ofl dressingsmooth metal rolls, eonsistingin pressing sand, emery, corundum, and other analogous or equivalent material into the surfaces of said rolls to form an indented dress, as set forth.
2. The process of indenting smooth metal rolls, consisting in passing sand, emery, corundum, or other like equivalent material between a pair of such rolls closely adjusted together, substantially as described.
WILLIAM N. -COSGROVE' Witnesses:
MELVILLE CHURCH; FRED F. CHURCH.
Publications (1)
Publication Number | Publication Date |
---|---|
US254199A true US254199A (en) | 1882-02-28 |
Family
ID=2323495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US254199D Expired - Lifetime US254199A (en) | Process of preparing the surfaces of grinding-rolls |
Country Status (1)
Country | Link |
---|---|
US (1) | US254199A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2685315A (en) * | 1952-01-31 | 1954-08-03 | Toledo Scale Co | Slicing machine having a sand blasted gauge plate |
US3029155A (en) * | 1959-08-21 | 1962-04-10 | Continental Can Co | Enamel-powder resist systems |
US6086003A (en) * | 1993-07-20 | 2000-07-11 | Maschinenfabrik Koppern Gmbh & Co. Kg | Roll press for crushing abrasive materials |
-
0
- US US254199D patent/US254199A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2685315A (en) * | 1952-01-31 | 1954-08-03 | Toledo Scale Co | Slicing machine having a sand blasted gauge plate |
US3029155A (en) * | 1959-08-21 | 1962-04-10 | Continental Can Co | Enamel-powder resist systems |
US6086003A (en) * | 1993-07-20 | 2000-07-11 | Maschinenfabrik Koppern Gmbh & Co. Kg | Roll press for crushing abrasive materials |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US254199A (en) | Process of preparing the surfaces of grinding-rolls | |
US369431A (en) | George e | |
US875936A (en) | Abrading material. | |
US341867A (en) | andrews | |
US1029406A (en) | Buffing-roll. | |
US172079A (en) | Improvement in grinding-disks | |
US424763A (en) | Hermon e | |
US115293A (en) | Improvement in polishing ores to aid in amalgamating the precious metals | |
US591225A (en) | Tumbling-star | |
US155461A (en) | Improvement in compositions for grinding and polishing wheels | |
US107752A (en) | Improvement in rolled sheet-iron | |
US294911A (en) | Pbiob | |
US458243A (en) | Knife | |
US792050A (en) | Emery or other grinding or abrasive wheel. | |
US225884A (en) | Felt dental disk | |
US326645A (en) | Process of forming the edges of axes | |
US608877A (en) | Abrading-wheel | |
US258076A (en) | Polishing apparatus | |
US111956A (en) | Improvement in millstones | |
US842993A (en) | Process of attaching an abrading-surface to metal. | |
US145913A (en) | Improvement in processes of preparing felt for weather-strips, packings | |
US76386A (en) | Improvement in paint-mills | |
USD30628S (en) | Design for a metal plate | |
US241351A (en) | Pateick geaham | |
US1534708A (en) | Glazing cast iron |