GB461503A - Improvements in and relating to the separation of coal - Google Patents

Improvements in and relating to the separation of coal

Info

Publication number
GB461503A
GB461503A GB22834/35A GB2283435A GB461503A GB 461503 A GB461503 A GB 461503A GB 22834/35 A GB22834/35 A GB 22834/35A GB 2283435 A GB2283435 A GB 2283435A GB 461503 A GB461503 A GB 461503A
Authority
GB
United Kingdom
Prior art keywords
switches
circuits
brushes
valve
coal
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
Application number
GB22834/35A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Birtley Co Ltd
Original Assignee
Birtley Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Birtley Co Ltd filed Critical Birtley Co Ltd
Priority to GB22834/35A priority Critical patent/GB461503A/en
Publication of GB461503A publication Critical patent/GB461503A/en
Expired legal-status Critical Current

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
    • B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties

Landscapes

  • Control Of Direct Current Motors (AREA)

Abstract

461,503. Separating coal. APPLEYARD, K. C., POLLITT, S. D., and BIRTLEY CO., Ltd. Aug. 13, 1935, No. 22834. [Class 72] In the separating of coal as described in Specification 421,401, a plurality of coal separating paths in one or more machines operate through the agency of a single electric discharge tube. The discriminating fingers 5-9 in the form of resilient contacts, one pair of fingers for each path, are connected at one side to earth and at the other side to one set of slip rings 33 mounted on a shaft 32 on which is also mounted to two five-part commutators and a second set of slip rings 33, the rings 33 being connected to the commutator 10, and the rings 34 to the commutator 11. The commutators 10, 11 are provided with co-operating brushes 22-26 and 27-31 respectively, the brushes 27-31 being con. nected to the anode 2 of the valve 1, and the brushes 22-26 to the grid 3 of the valve. The brushes 27-31 are also connected to relay switches 35-39 which when actuated energize solenoids 40-44 which operate doors 45-49 for the passage of one of the separated materials, e.g. stone. The relays also control hold-on circuits by means of switches 60- 64 mechanically connected to the switches 35-39 so that the circuits remain closed for a longer period than is provided by the action of the valve. The power for operating the solenoids is a source of alternating current 50 of high voltage and the power for the relays from a battery 51 or a motor generator of suitable voltage by 100-800 volts. The relay coils 53-57, which may have resistancecapacity circuits 52 connected in parallel are connected at one end to the positive end of the battery through door limit switches 65 69, and at the other end to the slip rings 34 and also via auxiliary switches 60-64 and a rheostat 58 to the battery 51. In place of the switches 65-69 which open and break the circuits when the doors 45-49 are fully open, switches may be mounted inside the doors so that the passage of the pieces of the separated material breaks the circuits. The cathode 4 of the valve 1 is heated by a step-down transformer winding 59 for the current source 50. Specification 461,504, [Group XXXVIII], is referred to.
GB22834/35A 1935-08-13 1935-08-13 Improvements in and relating to the separation of coal Expired GB461503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22834/35A GB461503A (en) 1935-08-13 1935-08-13 Improvements in and relating to the separation of coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22834/35A GB461503A (en) 1935-08-13 1935-08-13 Improvements in and relating to the separation of coal

Publications (1)

Publication Number Publication Date
GB461503A true GB461503A (en) 1937-02-15

Family

ID=10185799

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22834/35A Expired GB461503A (en) 1935-08-13 1935-08-13 Improvements in and relating to the separation of coal

Country Status (1)

Country Link
GB (1) GB461503A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112452817A (en) * 2020-10-13 2021-03-09 陶必 Semi-automatic continuous simulation detection device for new energy battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112452817A (en) * 2020-10-13 2021-03-09 陶必 Semi-automatic continuous simulation detection device for new energy battery

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