US308108A - Mill-burr - Google Patents
Mill-burr Download PDFInfo
- Publication number
- US308108A US308108A US308108DA US308108A US 308108 A US308108 A US 308108A US 308108D A US308108D A US 308108DA US 308108 A US308108 A US 308108A
- Authority
- US
- United States
- Prior art keywords
- plates
- mill
- burr
- teed
- grinding
- 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
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- 150000001875 compounds Chemical class 0.000 description 6
- 230000000875 corresponding Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004575 stone Substances 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
- Our invention relates to improvements in metallic mill-burrs; and it consists in the construction of the parts, hereinafter described and claimed. a I v
- the objects of our improvements are, first, to bring the heaviest grinding at the nearest convenient point to the center of the grindingsurfaces; second, to allow 'none of the grain to escape unground; third, to facilitate easy renewal of any one portion of the grindingsurfaces without causing the renewal of the whole. WVe attain these objects by the means illustrated in the accompanying drawings, in which.
- Figure 1 is a plan view of one of our improved plates.
- Fig. 2 is a sectional elevation -of the metallic burr attached to a millstone.
- furrows B On the surfaces of the plates are furrows B, extending from the center C to within about oneeighth of an inch of the peripheries of the plates. From these furrows, and at an angle with them, are sets of furrows extending to within an eighth of an inch of the peripheries of the plates, by which arrangement there is I the furrows B B and thence to the smooth surfaces D at the outer edges of the plates, which, being close together, allow none of the particles to escape unground. When the edges of the burrs grow dull, the plates are run together, and by revolving them slowly the teeth or edges on both plates are sharpened.
Description
L. P. & G. TEED.
ILL BU'RB.
No. 308,108. 7 Patented Nov. 18, 1884.
. NITED STATES- PATENT OFFICE.
LORENZO I. TEED AND CHARLES TEED, OE ERIE, PENNSYLVANIA.
MILL-IBURR.
SPECIFICATION forming part of Letters Patent No. 308,108, dated November 18, 1884.
Application filed March 26, 1884. (No model.)
To all whom it may concern.-
Be it known that we, LORENZO P. Tenn and. CHARLES TEED, of Erie, county of Erie, and State of Pennsylvania,have invented a new and useful Improvement in Mill-Burrs; and We do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use it, reference being had to the accompanying drawings, forming a part thereof.
Our invention relates to improvements in metallic mill-burrs; and it consists in the construction of the parts, hereinafter described and claimed. a I v The objects of our improvements are, first, to bring the heaviest grinding at the nearest convenient point to the center of the grindingsurfaces; second, to allow 'none of the grain to escape unground; third, to facilitate easy renewal of any one portion of the grindingsurfaces without causing the renewal of the whole. WVe attain these objects by the means illustrated in the accompanying drawings, in which.
Figure 1 is a plan view of one of our improved plates. Fig. 2 is a sectional elevation -of the metallic burr attached to a millstone.
Similar letters refer to corresponding parts in bothviews.
Upon the surface of the millstone A are affixed our sectional plates B B, the surfaces of which have compound curves along the radii. In our arrangement we bring the convexity of the compound curve to within about three inches of the center C,which arrangement we consider the best, as it brings theheaviest grinding surfaces nearest together at this point, and therefore the heaviest grinding is done near the application of the power, and consequently does not need as much power as when the heavy grinding is done nearer the periphery of the grinding-surface.
On the surfaces of the plates are furrows B, extending from the center C to within about oneeighth of an inch of the peripheries of the plates. From these furrows, and at an angle with them, are sets of furrows extending to within an eighth of an inch of the peripheries of the plates, by which arrangement there is I the furrows B B and thence to the smooth surfaces D at the outer edges of the plates, which, being close together, allow none of the particles to escape unground. When the edges of the burrs grow dull, the plates are run together, and by revolving them slowly the teeth or edges on both plates are sharpened.
It is obvious that the operation of our improvements is not limited to the use of sectional plates, but is just as operative cast in one large plate.
Having described our invention, What we claim, and desire to secure by Letters Patent of the United States, is'- A millstone-burr composed of the sectional plates B, having compound convex and concave furrowed surfaces, the convex portions being close to the eye of the stone, and the fiat or smooth surfaces D on their outer edges, substantially as and for the purpose set forth and described.
In testimony that we claim the foregoing we append our signatures.
LORENZO I. TEED. CHARLES TEED.
WVitnesses:
Jos. HENDERSON, J OHN FERRIER.
Publications (1)
Publication Number | Publication Date |
---|---|
US308108A true US308108A (en) | 1884-11-18 |
Family
ID=2377276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US308108D Expired - Lifetime US308108A (en) | Mill-burr |
Country Status (1)
Country | Link |
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US (1) | US308108A (en) |
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0
- US US308108D patent/US308108A/en not_active Expired - Lifetime
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