GB340977A - Improvements in or relating to a manner of and machinery for the extraction of stalk from tea - Google Patents
Improvements in or relating to a manner of and machinery for the extraction of stalk from teaInfo
- Publication number
- GB340977A GB340977A GB18643/29A GB1864329A GB340977A GB 340977 A GB340977 A GB 340977A GB 18643/29 A GB18643/29 A GB 18643/29A GB 1864329 A GB1864329 A GB 1864329A GB 340977 A GB340977 A GB 340977A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flaps
- selenium
- stalk
- rows
- separating
- 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
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
Landscapes
- Tea And Coffee (AREA)
- Branching, Merging, And Special Transfer Between Conveyors (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
340,977. Separating solid materials. ABBOTT, T. E., and BURN, H. H., 28, Dalhousie Square, Calcutta, India. June 17, 1929, No. 18643. Convention date, May 10. Void [Published under Sect. 91 of the Acts]. [Class 117.] Apparatus for separating tea from stalk by utilizing the difference in colour comprises means for feeding the particles in succession to a position in which they are examined by a light-sensitive device which selectively operates mechanical separating means. In the construction described, a series of lightsensitive devices 5, Fig. 1, is arranged transversely above an endless conveyer 4 consisting of a corresponding number of rows of pivoted flaps 26, Fig. 7, each adapted to support a particle and retained in its normal position by a spring latch 30 having a depending lug 32. Beneath each row of flaps is mounted a pin 10 forming part of the armature of a solenoid and adapted to be moved by the current in the photo-electric circuit into the path of the latch 30 so as to release the corresponding flap and allow it to discharge its content into a chute 11. A series of loose discs 12 resets the flaps in their normal position. The feeding device consists of a hopper 1 mounted on spring arms 2 and oscillated by a crank and connecting-rod. An adjustable discharge slot permits the particles to fall in a thin sheet on an inclined plate 3 which may have ridges and grooves to arrange them in rows in alignment with the flaps. The lightsensitive device may be in the form of an evacuated tube 34, Fig. 8, with an inner coating of silver 35 over which is deposited a coating 36, one atom thick, of cµsium, rubidium, selenium, potassium, sodium or lithium, which is exposed at one end 37 by omitting the silver layer. Alternatively, a metal, preferably copper, plate 41, Fig. 9, is coated with selenium 42 covered with gold leaf 43 cut away at the centre. The current passing in the circuit of the light-sensitive device is preferably amplified by the use of transformers and thermionic valves, the output current being utilized to energize the solenoid actuating the pins 10.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN340977X | 1929-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB340977A true GB340977A (en) | 1931-01-01 |
Family
ID=11076495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18643/29A Expired GB340977A (en) | 1929-05-10 | 1929-06-17 | Improvements in or relating to a manner of and machinery for the extraction of stalk from tea |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB340977A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104492731A (en) * | 2015-01-19 | 2015-04-08 | 无锡桑尼安科技有限公司 | Intelligent tea sorting system based on old leaf recognition |
CN107774583A (en) * | 2017-11-28 | 2018-03-09 | 安徽文尧智能光电科技有限公司 | A kind of tea color sorter of selection by winnowing slagging-off |
CN113500003A (en) * | 2021-07-12 | 2021-10-15 | 安徽老石人石业有限公司 | Stone material colour difference screening composing appearance |
-
1929
- 1929-06-17 GB GB18643/29A patent/GB340977A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104492731A (en) * | 2015-01-19 | 2015-04-08 | 无锡桑尼安科技有限公司 | Intelligent tea sorting system based on old leaf recognition |
CN104492731B (en) * | 2015-01-19 | 2016-12-28 | 盛泽明 | The intelligent Folium Camelliae sinensis sorting system identified based on Lao Ye |
CN107774583A (en) * | 2017-11-28 | 2018-03-09 | 安徽文尧智能光电科技有限公司 | A kind of tea color sorter of selection by winnowing slagging-off |
CN113500003A (en) * | 2021-07-12 | 2021-10-15 | 安徽老石人石业有限公司 | Stone material colour difference screening composing appearance |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2704079A (en) | Automatic machines such as cigarette making machines or the like | |
US2726762A (en) | Seed separating method and apparatus | |
GB340977A (en) | Improvements in or relating to a manner of and machinery for the extraction of stalk from tea | |
US2139903A (en) | Automatic weighing device | |
US2339835A (en) | Letter stripping means | |
DE3023100A1 (en) | HEATING DEVICE FOR A SLIDE OF A DEVICE FOR SORTING GRAINY MATERIALS BY COLOR | |
US2222895A (en) | Blank feeding mechanism | |
US2382168A (en) | Apparatus for sorting granular material according to its moisture content | |
GB875797A (en) | Improvements relating to the grading of articles, particularly eggs, according to weight | |
GB253029A (en) | Improvements in automatic weighing apparatus | |
GB780597A (en) | Apparatus for grading tablets, sweets or like pieces according to thickness | |
GB433527A (en) | Improvements in or relating to apparatus for counting and weighing a predetermined number of cigarettes | |
US2809751A (en) | Tablet grading means | |
SU107919A1 (en) | The method of mechanical sampling of rock from coal | |
SU494157A2 (en) | Color sorting and counting machine | |
GB400345A (en) | An improved machine for classifying or automatically sorting or separating plates or other articles or materials according to weight | |
US2930381A (en) | Automatic cigarette weight-adjusting device for cigarette-making machines | |
GB336555A (en) | Improvements relating to devices for automatically sorting articles | |
GB317491A (en) | Improvements in means for and method of separating cigarettes with tips of abnormal length | |
GB315318A (en) | ||
GB336328A (en) | Improvements in apparatus for grading eggs, fruit or the like | |
US2288379A (en) | Weighing mechanism feeder | |
US1346684A (en) | Automatic compensator for weighing-machines | |
SU373575A1 (en) | DEVICE FOR SELECTION OF SAMPLES OF BULK MATERIAL | |
GB332645A (en) | A new and improved method of and means for automatic sorting |