GB512698A - Improvements in and relating to machines for screening or grading stones, sand, gravel, grain, potatoes and such like - Google Patents
Improvements in and relating to machines for screening or grading stones, sand, gravel, grain, potatoes and such likeInfo
- Publication number
- GB512698A GB512698A GB824438A GB824438A GB512698A GB 512698 A GB512698 A GB 512698A GB 824438 A GB824438 A GB 824438A GB 824438 A GB824438 A GB 824438A GB 512698 A GB512698 A GB 512698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screens
- links
- shaft
- connecting rods
- rods
- 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
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
512,698. Sifting apparatus. HENDERSON, G. March 17, 1938, No. 8244. [Class 117] Sifting apparatus comprises two horizontal screens at different levels pivotally connected to a frame by links and vibrated by connecting rods driven from a shaft having a series of eccentrics in such a manner that one screen is raised and moved forward while the other is lowered and moved backwards, the screens also being supported by pairs of upper and lower cushioning springs which are compressed alternately as the screens vibrate. In the form shown, the screens 2, 3 are supported in framework 1 by links 20 and have lugs 15 secured to springs 16, 17 secured to the frame. The screens are vibrated by a shaft 6 through connecting rods 10, the eccentric part of shaft 6 to which one pair of rods 10 is connected being 180 degrees in advance of the eccentric parts to which the rods of the other screen are connected. Rubber sleeves surround the pivot pins of links 20 and the connections of the connecting rods 10 to the screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB824438A GB512698A (en) | 1938-03-17 | 1938-03-17 | Improvements in and relating to machines for screening or grading stones, sand, gravel, grain, potatoes and such like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB824438A GB512698A (en) | 1938-03-17 | 1938-03-17 | Improvements in and relating to machines for screening or grading stones, sand, gravel, grain, potatoes and such like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB512698A true GB512698A (en) | 1939-09-22 |
Family
ID=9848756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB824438A Expired GB512698A (en) | 1938-03-17 | 1938-03-17 | Improvements in and relating to machines for screening or grading stones, sand, gravel, grain, potatoes and such like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB512698A (en) |
-
1938
- 1938-03-17 GB GB824438A patent/GB512698A/en not_active Expired
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