US278272A - Roller-mill - Google Patents
Roller-mill Download PDFInfo
- Publication number
- US278272A US278272A US278272DA US278272A US 278272 A US278272 A US 278272A US 278272D A US278272D A US 278272DA US 278272 A US278272 A US 278272A
- Authority
- US
- United States
- Prior art keywords
- ribs
- roll
- roller
- rolls
- mill
- 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
- 210000000614 Ribs Anatomy 0.000 description 34
- 235000013339 cereals Nutrition 0.000 description 16
- 238000010276 construction Methods 0.000 description 8
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 235000007319 Avena orientalis Nutrition 0.000 description 2
- 244000075850 Avena orientalis Species 0.000 description 2
- 240000005979 Hordeum vulgare Species 0.000 description 2
- 235000007340 Hordeum vulgare Nutrition 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 235000005824 corn Nutrition 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
Definitions
- My invention relates to that class of rollernlills described by mein Letters Patent of the United States No. 271,518, granted to me January 30, 1883, in which two rolls or cylinders, each having spiral grooves and ribs, and rotating toward each other at preferably differ ent speeds, are used to produce a more perfeet granulation of the grain, and to remove at the first break the crease-dirt and germ, and to prevent the further grinding of the same with the crushed grain by receiving and protecting both in suitably-formed grooves or pockets;
- My present improvements consist in a special form of dress for the rolls, by which the crushing and granulation of all kinds of grain may be accomplished, but which is specially adapted for the coarser grains, such as corn, oats, barley, &c.
- Figure 1 is a perspective View of aroll having spiral grooves and ribs of my improved construction.
- Fig. 2 is a section of the face of one of the rolls.
- Fig. 3 is an outline of a portion of the two rolls in proper relative position when they are moving at the same speed in the direction indicated by the arrows.
- Fig. 4 is a similar view, showing the relative positions of the ribs and pockets when one roller is moving faster than the other, as I prefer to use them.
- each rib has aplain outer face, a, and two sides, I) c, perpendicular to said face, thus giving two sharp cutting-faces to each rib.
- the upper side, I), of each rib is made of full depth, and the lower side, 0, of partial depth, and they are connected .at their lower edges with the opposite sides of adjacent ribs by an inclined surface, (I, thus making a pocket having all the advantages which are given by the concave-sided pocket shown in my Letters Patent above referred to, without sacrificing the additional advantage of the two sharp cutting-edges.
- This construction of pocket permits of its being given a sufficient depth to receive and p'rotectlarge kernel grains.
- the relative proportions of the sides, faces, and distances apart of the ribs shown in the drawings are suitable ones for the objects required, though they maybe slightly varied, if
- One roll, A is rotated, preferably, at a more rapid speed than the other roll, B, a speed of the roll A double that of the roll B being aproper one.
- This differential motion may be imparted by any suitable or wellknown means, which therefore is unnecessary to be shown or describedherein.
- the rolls are to be so situated in reference to each other that the distance between theiradjacent working-faces may be a suitable one for the size of the grain to be granulated, as the object is not to grind or pulveriZe the grain, but merely to crush and split it, and so remove the dirt, germ,- and otherimpurities.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Description
(N0 Model.) 2 Sheets-Sheet 1.
' S. B. RIOKERSON.
ROLLER MILL.
No. 278,272. I Patented May 22,1883.
(No Model.) 2 sheets -sheet 2.
S. B. RIGKERSQN.
ROLLER MILL.
No. 278,272. Patented May 22,1883.
: .Qies) 1 Jr /fiO?) ww/mzm 1M g N. PETERS, HMvLMof P Vin-Wan. D.c.
UNITED STATES PATENT OFFIC J SHERMAN B. RIOKERSON, OF GRAND RAPIDS, MICHIGAN.
ROLLER-MILL.
SPECIFICATION forming part of Letters Patent No. 278,272, dated May 22, 1883.
I Application tiled March 0, 1883. (No model.)
To all whom it may concern:
Be it known that I, SHERMAN B. ltloKER- SON, a citizen of the United States, residing at Grand Rapids. in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Roller-Mills; and 1 do hereby 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 that class of rollernlills described by mein Letters Patent of the United States No. 271,518, granted to me January 30, 1883, in which two rolls or cylinders, each having spiral grooves and ribs, and rotating toward each other at preferably differ ent speeds, are used to produce a more perfeet granulation of the grain, and to remove at the first break the crease-dirt and germ, and to prevent the further grinding of the same with the crushed grain by receiving and protecting both in suitably-formed grooves or pockets;
My present improvements consist in a special form of dress for the rolls, by which the crushing and granulation of all kinds of grain may be accomplished, but which is specially adapted for the coarser grains, such as corn, oats, barley, &c.
In the accompanying drawings, which make part of this specification, Figure 1 is a perspective View of aroll having spiral grooves and ribs of my improved construction. Fig. 2 is a section of the face of one of the rolls. Fig. 3 is an outline of a portion of the two rolls in proper relative position when they are moving at the same speed in the direction indicated by the arrows. Fig. 4 is a similar view, showing the relative positions of the ribs and pockets when one roller is moving faster than the other, as I prefer to use them.
Similarletters designatecorresponding parts in allthe figures.
The ribs and grooves of both rolls are similarin construction. Each rib has aplain outer face, a, and two sides, I) c, perpendicular to said face, thus giving two sharp cutting-faces to each rib. The upper side, I), of each rib is made of full depth, and the lower side, 0, of partial depth, and they are connected .at their lower edges with the opposite sides of adjacent ribs by an inclined surface, (I, thus making a pocket having all the advantages which are given by the concave-sided pocket shown in my Letters Patent above referred to, without sacrificing the additional advantage of the two sharp cutting-edges. This construction of pocket permits of its being given a sufficient depth to receive and p'rotectlarge kernel grains. The relative proportions of the sides, faces, and distances apart of the ribs shown in the drawings are suitable ones for the objects required, though they maybe slightly varied, if
found desirable. One roll, A, is rotated, preferably, at a more rapid speed than the other roll, B, a speed of the roll A double that of the roll B being aproper one. This differential motion may be imparted by any suitable or wellknown means, which therefore is unnecessary to be shown or describedherein. The rolls are to be so situated in reference to each other that the distance between theiradjacent working-faces may be a suitable one for the size of the grain to be granulated, as the object is not to grind or pulveriZe the grain, but merely to crush and split it, and so remove the dirt, germ,- and otherimpurities. By this (lifferent speed of rotation and the construction of the ribs and grooves the falling grain is caught between the upper cutting-edges of the ribs of the slow-moving roll and the lower cuttingedges of the ribs of the fast-moving roll, is rubbed and crushed between the faces of the ribs of the rolls, and then falls into the pockets below, where itis protected from grinding or further crushing. When the workingedges become worn or dull by use, by changing the speeds of the rolls so that B becomes the fast roll and A the slow roll the edges hitherto not worn will become the workingedges, thus getting a double wear from the same roll.
What I claim as my invention is-' 1. In a roller-mill, the described roll provided with ribs and grooves, each rib having aplain outer face and two straight perpendicular sides, the upper side being of full depth and the lower side of partial depth, each side being connected at the bottom with an inclined surface, substantially as and for the purpose herein specified.
2. The combination of the two rolls, each provided with a dress composed of grooves. the other roll, substantially as and for the m and ribs, each of the ribs having a plain outer pose herein specified. surface and two perpendicular sides, the up- In testimony whereof I affix my signature in SHERMAN B. RICKERSON.- \Vitnesses:
I. E. MIDDLETON, J. H. BLACKWOOD.
of partial depth, and connected at their hottoms with inclined surfaces, arranged and operated so that the lower cutting edg'e of one roll will first strike the upper cutting-edge of per side being of full depth and the lower side I presence of two Witnesses.
FAT Mai
Publications (1)
Publication Number | Publication Date |
---|---|
US278272A true US278272A (en) | 1883-05-22 |
Family
ID=2347492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US278272D Expired - Lifetime US278272A (en) | Roller-mill |
Country Status (1)
Country | Link |
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US (1) | US278272A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4848683A (en) * | 1986-12-09 | 1989-07-18 | Ing. Shoji Co., Ltd. | Crushing members used in pulverizers |
US8484824B2 (en) | 2010-09-01 | 2013-07-16 | Flsmidth A/S | Method of forming a wearable surface of a body |
-
0
- US US278272D patent/US278272A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4848683A (en) * | 1986-12-09 | 1989-07-18 | Ing. Shoji Co., Ltd. | Crushing members used in pulverizers |
US8484824B2 (en) | 2010-09-01 | 2013-07-16 | Flsmidth A/S | Method of forming a wearable surface of a body |
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