GB728047A - Improvements in or relating to a method and apparatus for grading materials in sieves comprising superimposed screens - Google Patents
Improvements in or relating to a method and apparatus for grading materials in sieves comprising superimposed screensInfo
- Publication number
- GB728047A GB728047A GB16144/51A GB1614451A GB728047A GB 728047 A GB728047 A GB 728047A GB 16144/51 A GB16144/51 A GB 16144/51A GB 1614451 A GB1614451 A GB 1614451A GB 728047 A GB728047 A GB 728047A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screens
- extension
- screen
- mesh
- spacing
- 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
Links
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
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/282—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens their jigging movement being a closed or open curvilinear path in a plane perpendicular to the plane of the screen and parrallel or transverse to the direction of conveyance
-
- 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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
728,047. Sifting apparatus. HARVENGT, E. July 6, 1951 [July 8, 1950], No. 16144/51. Class 117. In a sieve comprising several superimposed screens A-E of progressively decreasing mesh from top to bottom of the series, and constructed in reciprocating units 1, 4 of one or more screens, the material to be separated is first fed to an extension 8 of the uppermost screen A having a mesh smaller than that of the screen A and " through " material from it by-passed to a lower screen or screens D-E of the series, preferably in a direction opposite to that of travel of the material on the screens A-E, by an inclined plane 9b. The plate may be in two relatively sliding parts 9a, 9b (with the lower adjustable in inclination about a pivot 11), so that the quantity of fine material passing through the extension 8 may be variably apportioned between the upper screens B-C and lower screens D-E. Alternatively, the portion of the extension 8 adjacent the screen A (Fig. 4) may be in the form of longitudinal bars of spacing 16 equal to the mesh of the screen A and the upper sliding member 9a formed with longitudinal bars contacting the bars of extension 8 and of spacing equal to the mesh of extension 8, both spacing apertures being coincident, so that the effective areas of the screen A and extension 8 are relatively adjustable and fully utilized. Moreover, different portions of material may be separated out initially and by-passed to different lower screens,
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE728047X | 1950-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB728047A true GB728047A (en) | 1955-04-13 |
Family
ID=3879067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16144/51A Expired GB728047A (en) | 1950-07-08 | 1951-07-06 | Improvements in or relating to a method and apparatus for grading materials in sieves comprising superimposed screens |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB728047A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1976649A1 (en) * | 2005-12-13 | 2008-10-08 | Sandvik Intellectual Property AB | Screening arrangement |
| RU2813608C1 (en) * | 2023-07-04 | 2024-02-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уральский государственный горный университет" | Vibrating screen |
-
1951
- 1951-07-06 GB GB16144/51A patent/GB728047A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1976649A1 (en) * | 2005-12-13 | 2008-10-08 | Sandvik Intellectual Property AB | Screening arrangement |
| EP1976649A4 (en) * | 2005-12-13 | 2013-03-06 | Sandvik Intellectual Property | Screening arrangement |
| RU2813608C1 (en) * | 2023-07-04 | 2024-02-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уральский государственный горный университет" | Vibrating screen |
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