US285118A - ethell - Google Patents
ethell Download PDFInfo
- Publication number
- US285118A US285118A US285118DA US285118A US 285118 A US285118 A US 285118A US 285118D A US285118D A US 285118DA US 285118 A US285118 A US 285118A
- Authority
- US
- United States
- Prior art keywords
- furrows
- ethell
- stone
- series
- millstone
- 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
- 239000004575 stone Substances 0.000 description 12
- 210000000887 Face Anatomy 0.000 description 2
- 240000001973 Ficus microcarpa Species 0.000 description 2
- 240000008529 Triticum aestivum Species 0.000 description 2
- 230000001154 acute Effects 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000021307 wheat 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
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/12—Shape or construction of discs
Definitions
- This invention relates to millstone-clress; ancl it consists in a new and improved dress, Whi0h Will be 'fully understoocl from the description, when taken in connection witl1 the annexed drawings.
- the working-surface 0f the 'stone is slightly concave, anti centrally tl1rough the stone is the eye A.
- Surrounding the eye are radial .furrows B, which are equiclistant ancl concentric to the axis 0f the stone. These furrows are the shallovest 0f all the furrows 011 the facel 0f the stone, and they have aeute edges b, especially designed for crushing the wheat or other grains preparatory to the grinding process.
- Surrounding the furrows B is another series 0f furrows, O, wl1ich at their inner ends are one-half as wide as the outer ends of the furrows B, and deeper. In otl1er words, the
- furrows B, and tl1ey have acute edges c,-whieh radiat-e fron1 the center of the stone.
- the furrows O are planes inclining from the angles 01 edges c, as shown in Fig. 4.
- the last series 0f furrows, D is tangent t0 a cirole described within the circumferenee f the stone, and they are deeper than the two inner series of furrows.
- These furrows D perf01n1 the grincling operation, 2L11(1 they have aeute eclges d.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Earth Drilling (AREA)
- Road Repair (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
(Model.)
J. J. ETHELL.
MILLSTONE.
N0. 285,118. Patent-ad Sept. 18, 1883.
UNITED STATES PATENT OFFICE JOHN J.ETHELL, OB ST. LOUIS, MISSOURI.
MILLSTONE.
SPECIFICATION forming part of Letters Patent N0. 285,118, dated September 18, 1853.
Applicntion filed May 11. 18E3 (Model.)
T0 all whom 2125 may concern:
Be it known that I, JOHN J. ETHELL, of St. Louis, Missouri, have made a new and useful Improvement in Millstones, 0f which the following is a full, elear, and ex2tct description, reference being had to the annexed drawings, 1 naking part of this specification, in Whlch Figure 1 is a faee view of a millstone having the improvement; F1'g. 2, a section on the line 2 2 of Fig. l, and Fig. 3 a section 011 the line 3 3 of Fig. l. Fig. 4 is a section through Fig. 1 in the plane indicated by dotted lines y y- The same letters of referenee denote the same parts.
This invention relates to millstone-clress; ancl it consists in a new and improved dress, Whi0h Will be 'fully understoocl from the description, when taken in connection witl1 the annexed drawings.
The working-surface 0f the 'stone is slightly concave, anti centrally tl1rough the stone is the eye A. Surrounding the eye are radial .furrows B, which are equiclistant ancl concentric to the axis 0f the stone. These furrows are the shallovest 0f all the furrows 011 the facel 0f the stone, and they have aeute edges b, especially designed for crushing the wheat or other grains preparatory to the grinding process. Surrounding the furrows B is another series 0f furrows, O, wl1ich at their inner ends are one-half as wide as the outer ends of the furrows B, and deeper. In otl1er words, the
furrows B, and tl1ey have acute edges c,-whieh radiat-e fron1 the center of the stone. Like the furrows B, the furrows O are planes inclining from the angles 01 edges c, as shown in Fig. 4. The last series 0f furrows, D, is tangent t0 a cirole described within the circumferenee f the stone, and they are deeper than the two inner series of furrows. These furrows D perf01n1 the grincling operation, 2L11(1 they have aeute eclges d. They are continuous with the furrows B ancl o ne-half the number of flllfS C, as sl1own in Fig. l, forming obtuse .angles at the junctions With the furrows O. This skirt Series 0f furrows incline downward from the lands 01' grinding-faces E, as shown in Fig. l, which faces are all in the same plane. The
series 0f furrows O number just double the furrows are deepei* than the furrows B, as well as series O.
Having describecl my inventi 0111, what I claim seribed.
JOHN J ETHELL'. Witnesse'sr G. D. M001)Y, T110s. L. J ONES.
Publications (1)
Publication Number | Publication Date |
---|---|
US285118A true US285118A (en) | 1883-09-18 |
Family
ID=2354319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US285118D Expired - Lifetime US285118A (en) | ethell |
Country Status (1)
Country | Link |
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US (1) | US285118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170320063A1 (en) * | 2014-10-29 | 2017-11-09 | Valmet Technologies Oy | Blade Element for Refiner |
-
0
- US US285118D patent/US285118A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170320063A1 (en) * | 2014-10-29 | 2017-11-09 | Valmet Technologies Oy | Blade Element for Refiner |
US10464068B2 (en) * | 2014-10-29 | 2019-11-05 | Valmet Technologies Oy | Blade element for refiner |
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