US122728A - Improvement in construction of sieves - Google Patents
Improvement in construction of sieves Download PDFInfo
- Publication number
- US122728A US122728A US122728DA US122728A US 122728 A US122728 A US 122728A US 122728D A US122728D A US 122728DA US 122728 A US122728 A US 122728A
- Authority
- US
- United States
- Prior art keywords
- sieve
- cloth
- edge
- sieves
- improvement
- 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
- 238000010276 construction Methods 0.000 title 1
- 239000004744 fabric Substances 0.000 description 14
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
Definitions
- the nature of my invention consists in presenting a flat or rounded surface below the sieve-cloth just where its edge is turned down to be fastened to secure itto the sieve, instead of having the sieve-cloth rest against the raw edge of the tin, as in my patents heretofore obtained for improvements in metallic sieves.
- the object of this invention is to prevent the sieve-cloth from being cut or worn, and also to stiifen and strengthen the fastening of the wire-cloth and the body of the sieve.
- Figure 1 represents a bottom view of my sieve, and Fig. 2 a vertical central sectional view taken at 00 min Fig. 1.
- A is the metallic hoop forming the body of the sieve
- B is the sieve-cloth.
- the sievecloth is secured to the metallic hoop by turning over the lower edge thereof, and clasping the edge of the wire-cloth and swaging it, as clearly shown in the drawing at O; or it may be secured in any of the ways that I have shown and described in my patents heretofore obtained; but in all these patents the metal that clasps the edge of the sieve-cloth on the inside of the bottom of the sieve presents an edge at the bend in the sieve-cloth at D, upon which it rests, and by which it is liable to be more or less cut and worn.
- the object of my invention is to construct the upper edge of the piece that clasps-the edge of the sieve-cloth on the inside of the sieve, so that it shall present a flat or oval surface, to support the sieve-cloth at the point 0 in a metallic sieve, instead of a raw edge, as heretofore.
Landscapes
- Threshing Machine Elements (AREA)
Description
ROBERTJ.MANN
Inventor-f Patented Jan.16,-I872.
Improvement in Co-nstructionof Sieves.
W has? AM Murmur/100501110 to M X/ 03 0171153 mummy 1,1? ATENT FFI'CE.
ROBERT J. MANN, 0E BURLINGTON, IOWA.
IMPROVEMENT IN CONSTRUCTION OF SIEVES.
Specification forming part of Letters Patent No. 122,728, dated January 16, 1872.
SPECIFICATION.
I, ROBERT J. MANN, of Burlington, in the county of Des Moines and State of Iowa, have invented a new and useful Improvement in Metallic Sieves, of which the following is a specification, reference being hadto the accompanying drawing which forms a part hereof.
Nature and Object of my Invention.
The nature of my invention consists in presenting a flat or rounded surface below the sieve-cloth just where its edge is turned down to be fastened to secure itto the sieve, instead of having the sieve-cloth rest against the raw edge of the tin, as in my patents heretofore obtained for improvements in metallic sieves. The object of this invention is to prevent the sieve-cloth from being cut or worn, and also to stiifen and strengthen the fastening of the wire-cloth and the body of the sieve.
Deseriptionof the Drawing.
Figure 1 represents a bottom view of my sieve, and Fig. 2 a vertical central sectional view taken at 00 min Fig. 1.
General Description.
A is the metallic hoop forming the body of the sieve, and B is the sieve-cloth. The sievecloth is secured to the metallic hoop by turning over the lower edge thereof, and clasping the edge of the wire-cloth and swaging it, as clearly shown in the drawing at O; or it may be secured in any of the ways that I have shown and described in my patents heretofore obtained; but in all these patents the metal that clasps the edge of the sieve-cloth on the inside of the bottom of the sieve presents an edge at the bend in the sieve-cloth at D, upon which it rests, and by which it is liable to be more or less cut and worn. It will be observed that instead of this edge resting against the sieve-cloth at (J it is turned inwardly, as shown at E, and forms a flat or rounding surface beneath the sieve-cloth at thatpoint. Thisturnedover edge also stiifens and holds the parts that clasp the edge of the wire-cloth more firmly in place, so that when the sieve is roughly handled or a weight placed upon the sievecloth the edge of the wire-cloth will not be as liable to be loosened. If, instead of turning the edge at E inwardly and presenting a flat surface, it were turned quite over, simply presentin g an oval surface, the same results would be obtained.
The object of my invention is to construct the upper edge of the piece that clasps-the edge of the sieve-cloth on the inside of the sieve, so that it shall present a flat or oval surface, to support the sieve-cloth at the point 0 in a metallic sieve, instead of a raw edge, as heretofore.
Claim.
Witnesses:
FRANCIS F. WARNER, HEDNR. F. BRUNS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US122728A true US122728A (en) | 1872-01-16 |
Family
ID=2192166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US122728D Expired - Lifetime US122728A (en) | Improvement in construction of sieves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US122728A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214841A1 (en) | 2018-05-07 | 2019-11-14 | Smart Material Printing B.V. | Selective use of polyoxometalates against the infestation of eukaryote cultures, virus cultures and microorganism populations with mollicutes and selectively mollicute-inhibiting and -killing polyoxometalate-containing substances and methods |
-
0
- US US122728D patent/US122728A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214841A1 (en) | 2018-05-07 | 2019-11-14 | Smart Material Printing B.V. | Selective use of polyoxometalates against the infestation of eukaryote cultures, virus cultures and microorganism populations with mollicutes and selectively mollicute-inhibiting and -killing polyoxometalate-containing substances and methods |
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