US120505A - Improvement in mill-stone dressings - Google Patents
Improvement in mill-stone dressings Download PDFInfo
- Publication number
- US120505A US120505A US120505DA US120505A US 120505 A US120505 A US 120505A US 120505D A US120505D A US 120505DA US 120505 A US120505 A US 120505A
- Authority
- US
- United States
- Prior art keywords
- stone
- mill
- improvement
- dress
- dressings
- 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 title description 20
- 230000000994 depressed Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 241000906091 Lethrinus miniatus Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 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
- Figure l of the drawing is a plan view of my dress.
- Fig. 2 is a plan view, showing a modification thereof.
- Fig. 3 is a side view.
- Fig. 4 is a sectional view of the Lipper stone reversed.
- My invention relates to mill-stone dress, and consists in the novel shape and arrangement of the grinding-furrows in the surfaces of the bedstone and runner, whereby advantageous results are produced.
- a ofthe drawing represents the bed-stone.
- B is the runner moving thereon, and provided with the central circularI opening or recess G.
- Extending outward from the central circular recess C are the grinding furrows c.
- Each furrow has two bounding walls, one, a, perpendicular, and the other, a', oblique to the face of the stone.
- the direction of the perpendicular wall of each main channel is tangential to the circular wall of the recess O, at its junction therewith.
- the channel has the same direction for about two-thirds the distance from the center ofthe stone to its perimeter.
- Gr Gr are the scraper-s, attached to the side of the runner, and designed to keep the outlets of the channels free.
- H represents the discharge-opening.
- the mill-stone dress herein described its V-shaped channels having their inner straight portions tangential to the eye but oblique to the radins, and their outer portions curved, as specied.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
UNITED STATES HENRY DOLMETOH, OF CANTON, PENNSYLVANIA.
IMPROVEMENT IN MILL-STONE DRESSINGS.
Specification forming part of Letters Patent No. 120,505, dated October 31, 1871.
To all whom t may concern:
Be it known that I, HENRY DoLMETcE, of Canton, in the county of Bradford and State of Pennsylvania, have invented a new and valuable- Improvement in Mill-Stone Dress and I do hereby declare that the following is a full, clear, and exact description of the construction and op eration of the same, reference being had to the annexed drawing making a part of this specification, and to the letters and iigures of reference marked thereon.
Figure l of the drawing is a plan view of my dress. Fig. 2 is a plan view, showing a modification thereof. Fig. 3 is a side view. Fig. 4 is a sectional view of the Lipper stone reversed.
My invention relates to mill-stone dress, and consists in the novel shape and arrangement of the grinding-furrows in the surfaces of the bedstone and runner, whereby advantageous results are produced.
A ofthe drawing represents the bed-stone. B is the runner moving thereon, and provided with the central circularI opening or recess G. Extending outward from the central circular recess C are the grinding furrows c. Joining each main furrow c, near its junction with the recess O, is a branch furrow, d, similar in every respect except in length. Each furrow has two bounding walls, one, a, perpendicular, and the other, a', oblique to the face of the stone. The direction of the perpendicular wall of each main channel is tangential to the circular wall of the recess O, at its junction therewith. The channel has the same direction for about two-thirds the distance from the center ofthe stone to its perimeter. At this point it deviates from the right line, and, gradually curving toward the parallel radius, iinishes the remaining third of its length. Gr Gr are the scraper-s, attached to the side of the runner, and designed to keep the outlets of the channels free. H represents the discharge-opening.
The operation of my dress is very satisfactory. On account of the oblique position of the channels and the perpendicular distance of their inner ends from the center of motion the grinding is rapid, even at the beginning of the channel; but lest some of the coarser particles should iind their way out, the motion of the grain in the channels is gently retarded by the curved portion thereof. As the relative velocity of this outer portion of the channel is the greatest its action is most efficient, and the comminuted matter is thoroughly pulverized thereby. In order to reap the full beneiit of my dress, the egress of the ground particles must be retarded by nothing but the curve of the channels; hence the necessity of the Scrapers. They are usually of leather, and their ends extend downward a short distance over -the edge of the bed-stone, the outer ledge lc being depressed for this purpose. Sometimes several parallel branches are joined to the main channel.
What I claim as my invention, and desire to secure by Letters Patent, is`
1. The mill-stone dress herein described, its V-shaped channels having their inner straight portions tangential to the eye but oblique to the radins, and their outer portions curved, as specied.
2. In combination, the runner B having the dress herein described, and the scrapers and the bed-stone A having a similar dress, and the depressed ledge k, as specified.
In testimony that I claim the above I have hereunto subscribed my name in the presence of Witnesses SAMUEL BENEDIGT,
HENRY J. BENEDICT. (57)
Publications (1)
Publication Number | Publication Date |
---|---|
US120505A true US120505A (en) | 1871-10-31 |
Family
ID=2189950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US120505D Expired - Lifetime US120505A (en) | Improvement in mill-stone dressings |
Country Status (1)
Country | Link |
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US (1) | US120505A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060036568A1 (en) * | 2003-03-24 | 2006-02-16 | Microsoft Corporation | File system shell |
US20060242164A1 (en) * | 2005-04-22 | 2006-10-26 | Microsoft Corporation | Systems, methods, and user interfaces for storing, searching, navigating, and retrieving electronic information |
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0
- US US120505D patent/US120505A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060036568A1 (en) * | 2003-03-24 | 2006-02-16 | Microsoft Corporation | File system shell |
US20060242164A1 (en) * | 2005-04-22 | 2006-10-26 | Microsoft Corporation | Systems, methods, and user interfaces for storing, searching, navigating, and retrieving electronic information |
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