US221371A - Improvement in grinding-mills - Google Patents
Improvement in grinding-mills Download PDFInfo
- Publication number
- US221371A US221371A US221371DA US221371A US 221371 A US221371 A US 221371A US 221371D A US221371D A US 221371DA US 221371 A US221371 A US 221371A
- Authority
- US
- United States
- Prior art keywords
- concave
- cylinder
- dress
- grinding
- mills
- 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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- 230000000875 corresponding Effects 0.000 description 4
- 210000000481 Breast Anatomy 0.000 description 2
- 230000036536 Cave Effects 0.000 description 2
- 102100002378 RTTN Human genes 0.000 description 2
- 101700029166 RTTN Proteins 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 230000013707 sensory perception of sound Effects 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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
- B02C18/186—Axially elongated knives
Definitions
- My invention relates, particularly to that class of grinding-mills in which a rota-tin g cylinder works against a fixed breast or con cave; and it consists in an improved dress to be given such cylinder and concave, as hereinafter described.
- Figure l is a perspective view, the dress being shown as applied spirally.
- Fig. 2 is a cross-section transverse of the cylinder and concave;
- Fig. 3 a view of the concave with dress matching the cylinder shown in Fig. 1.
- Fig. 4 represents a cylinder with straight dress, and
- Fig. 5 a correspond ing concave.
- the mechanism is mounted upon a strong frame, A, which may be of any approved construction.
- A In suitable hearings to upon this frame is journaled the cylinder B, which turns against or in the concave O.
- This concave is so mounted upon the frame that it may be adjusted nearer to or farther from the cylinder, in order to grind high or low, and also so mounted that it may be tipped to vary the angle between it and the circumferential face of the cylinder.
- slots 1) are made in each end of the concave, or in flanges formed thereon, through which clamps or setscrews 0 are passed, holding the concave to the frame.
- adjusting-screws c To the rear of the concave in the framework, or in suitable lugs d projecting therefrom, are set adjusting-screws c, by which the concave is advanced or retracted to determine the space between it and the cylinder.
- the cylinder B is driven by any suitable connection with a prime motor, as by means v71 In Fig. 1 it is shown as applied spirally,
- the dress which I have described presents no sharp cutting, rasping, or tearing edges, and no reent-rant angles in which the material may lodge and remain. lts action is a pinching and crushing one, in contradistinction to cutting and grinding.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
J. STEVENS. Grinding-Mill.
Patented Nov. 4, 1879,.
UNITED STATES PATENT OEEIoE.
JOHN STEVENS, OF NEENAH, WISCONSIN.
IMPROVEMENT IN GRINDING-MILLS.
Specification forming part of Letters Patent No. 221,371, dated November 4, 1879; application filed June 13, 1879.
To all whom it may concern Be it known that I, J OHN STEVENS, of Neena h, in the county of Vinnebago and State of Visconsin, have made certain new and useful Improvements in Mills for Grinding and Reducing Grain and other Materials, of which the'following is a specification.
My invention relates, particularly to that class of grinding-mills in which a rota-tin g cylinder works against a fixed breast or con cave; and it consists in an improved dress to be given such cylinder and concave, as hereinafter described.
In the drawings, Figure l is a perspective view, the dress being shown as applied spirally. Fig. 2 is a cross-section transverse of the cylinder and concave; Fig. 3, a view of the concave with dress matching the cylinder shown in Fig. 1. Fig. 4 represents a cylinder with straight dress, and Fig. 5 a correspond ing concave.
The mechanism is mounted upon a strong frame, A, which may be of any approved construction. In suitable hearings to upon this frame is journaled the cylinder B, which turns against or in the concave O. This concave is so mounted upon the frame that it may be adjusted nearer to or farther from the cylinder, in order to grind high or low, and also so mounted that it may be tipped to vary the angle between it and the circumferential face of the cylinder. For these purposes slots 1) are made in each end of the concave, or in flanges formed thereon, through which clamps or setscrews 0 are passed, holding the concave to the frame.
To the rear of the concave in the framework, or in suitable lugs d projecting therefrom, are set adjusting-screws c, by which the concave is advanced or retracted to determine the space between it and the cylinder.
ell forward beneath the concave at each end wedges f, orequivalcnt devices, are placed, by which, when the clamps are loosened, the concave may be tipped to vary the angle be tween its face and the cylinder. These adjustments and the resulting compound adjustment, it is obvious, may be obtained by various equivalent devices, as cams or eccentrics, and in various manners, which will be readily apparent.
The cylinder B is driven by any suitable connection with a prime motor, as by means v71 In Fig. 1 it is shown as applied spirally,
being given about a quarter-turn in the length of the cylinder. The corresponding concave shown in Fig. 3 has the dress similarly applied, but with the spirals running in such direction that, when brought together, the dress of the cylinder will cross that of the concave.
A somewhat similar effect might be produced by. making the spirals on one faster, or with a more rapid pitch, than on the other; but this I do not deem so desirable.
In Figs. 4.- and 5 I have represented the dress as applied in straight lines longitudinally of the cylinder and concave. This form may sometimes he used with advantage.
The dress which I have described presents no sharp cutting, rasping, or tearing edges, and no reent-rant angles in which the material may lodge and remain. lts action is a pinching and crushing one, in contradistinction to cutting and grinding.
It is not necessary to the efficient operation of the cylinder and concave provided with my improved dress that they should be used with the particular adjusting devices or be capable of each of the relative adjustments hereinbefore described.
I claim as my invention 1. The herein-described dress for cylinder and concave, consisting of a series of parallel rounded flutes with rounded dividing-ridges, substantially as set forth.
2. The combination of a cylinder having a dress composed of a series of parallel rounded flutes with rounded dividing-ridges and a concave having a similar dress, substantially as described.
JOHN STEVENS. Witnesses:
ALFRED GALPIN, GEo. B. LEONARD.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US221371A true US221371A (en) | 1879-11-04 |
Family
ID=2290768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US221371D Expired - Lifetime US221371A (en) | Improvement in grinding-mills |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US221371A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413790A (en) * | 1980-10-02 | 1983-11-08 | Draiswerke Gmbh | Mixer for bulk materials, especially for fibrous suspensions |
| US4730776A (en) * | 1985-10-08 | 1988-03-15 | Karl Mengele & Sohne Gmbh & Co. | Displaceable and lockable chopper cutting edge |
| US5996457A (en) * | 1997-07-15 | 1999-12-07 | Deltronic Labs Inc. | Apparatus for destruction of tickets and the like |
| US20140061340A1 (en) * | 2012-09-06 | 2014-03-06 | Charles A. Castronovo | Compact high-security destruction machine |
-
0
- US US221371D patent/US221371A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413790A (en) * | 1980-10-02 | 1983-11-08 | Draiswerke Gmbh | Mixer for bulk materials, especially for fibrous suspensions |
| US4730776A (en) * | 1985-10-08 | 1988-03-15 | Karl Mengele & Sohne Gmbh & Co. | Displaceable and lockable chopper cutting edge |
| US5996457A (en) * | 1997-07-15 | 1999-12-07 | Deltronic Labs Inc. | Apparatus for destruction of tickets and the like |
| US20140061340A1 (en) * | 2012-09-06 | 2014-03-06 | Charles A. Castronovo | Compact high-security destruction machine |
| US9463465B2 (en) * | 2012-09-06 | 2016-10-11 | Charles A. Castronovo | Compact high-security destruction machine |
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