GB628336A - Improvements in apparatus for controlling the distribution of materials - Google Patents

Improvements in apparatus for controlling the distribution of materials

Info

Publication number
GB628336A
GB628336A GB536047A GB536047A GB628336A GB 628336 A GB628336 A GB 628336A GB 536047 A GB536047 A GB 536047A GB 536047 A GB536047 A GB 536047A GB 628336 A GB628336 A GB 628336A
Authority
GB
United Kingdom
Prior art keywords
hopper
operated
relays
probe
level
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
GB536047A
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.)
THOMAS FREDERICK HALFORD
Original Assignee
THOMAS FREDERICK HALFORD
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 THOMAS FREDERICK HALFORD filed Critical THOMAS FREDERICK HALFORD
Priority to GB536047A priority Critical patent/GB628336A/en
Publication of GB628336A publication Critical patent/GB628336A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34—Devices for discharging articles or materials from conveyor 
    • B65G47/46—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points
    • B65G47/51—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
    • B65G47/5195—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for materials in bulk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/14—Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2814/00—Indexing codes relating to loading or unloading articles or bulk materials
    • B65G2814/03—Loading or unloading means
    • B65G2814/0344—Control or feeding or discharging using level or weight measuring means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Control Of Conveyors (AREA)

Abstract

628,336. Endless-belt conveyers. HALFORD, T. F., and BAILLOT, A. G. Feb. 24, 1947, No. 5360. [Class 78 (i)] [Also in Group XXXV] Apparatus for conveying for example foundry sand comprises a conveyer 1 and several hoppers 5a, 5b, 5c, 5d, 5e each associated with means 9a-9e for discharging material from the conveyer into the hopper, and control means causing each discharging means to operate in sequence to discharge material into each hopper in turn. Further control means may be provided which, when the level of material in any hopper falls below a predetermined minimum, causes the corresponding discharge means only to be operated and which, when the level in any hopper exceeds a predetermined maximum, prevents delivery to this hopper. The endless belt conveyer 1 conveys sand from a source 6 past ploughs 9a, 9b, 9c, 9d, 9e which divert the sand into the hoppers but may be raised when electromagnets 12a, 12b, 12c, 12d, 12e are operated, surplus sand passing to a receiver 7 whence it is returned to the source 6. Two probes, comprising stainless steel rods mounted in insulators of glazed ceramic material at the upper end of each hopper, project vertically down into the hopper to different extents. The body of the hopper is earthed so that when the material reaches the level of a probe it is earthed to change the mode of operation of a relay system (see Group XXXV) controlling the sequential operation of the electromagnets 12a, 12b, 12c, 12d, 12e. The probes are arranged to vary the bias on the grid of a thermionic valve, the bias being changed more when the material reaches the level of the upper probe than when it reaches the lower probe. In the anode circuit of the valve are two relays, one more sensitive than the other so that one is operated when the material reaches the lower probe and the other when the material reaches the upper probe. These relays after the mode of operation of a series of relays including one corresponding to each plough, the latter relays being operated sequentially by means including an automatically periodically operated twoway switch, the relays locking when operated until released by an automatically operating interrupter switch. The time for which each electromagnet is caused to lower the corresponding plough is determined by a corresponding electric time-delay device.
GB536047A 1947-02-24 1947-02-24 Improvements in apparatus for controlling the distribution of materials Expired GB628336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB536047A GB628336A (en) 1947-02-24 1947-02-24 Improvements in apparatus for controlling the distribution of materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB536047A GB628336A (en) 1947-02-24 1947-02-24 Improvements in apparatus for controlling the distribution of materials

Publications (1)

Publication Number Publication Date
GB628336A true GB628336A (en) 1949-08-26

Family

ID=9794638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB536047A Expired GB628336A (en) 1947-02-24 1947-02-24 Improvements in apparatus for controlling the distribution of materials

Country Status (1)

Country Link
GB (1) GB628336A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655365A (en) * 1951-12-19 1953-10-13 Oglebay Norton And Company Apparatus for discharging solid material
US2868400A (en) * 1955-06-07 1959-01-13 Proctor & Schwartz Inc Method for feeding bulk material to plural supply locations
US2879905A (en) * 1956-07-27 1959-03-31 Foundry Equipment Ltd Charging of hoppers
US2931521A (en) * 1957-05-02 1960-04-05 Hartley Controls Corp Level control using alternating current through material of variable resistance
US3083423A (en) * 1961-09-18 1963-04-02 Hartley Controls Corp Automatic supplying, mixing, moisture control and delivery of granular material
US3172175A (en) * 1953-08-10 1965-03-09 Hartley Controls Corp Automatic supplying, mixing, moisture control and delivery of granular material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655365A (en) * 1951-12-19 1953-10-13 Oglebay Norton And Company Apparatus for discharging solid material
US3172175A (en) * 1953-08-10 1965-03-09 Hartley Controls Corp Automatic supplying, mixing, moisture control and delivery of granular material
US2868400A (en) * 1955-06-07 1959-01-13 Proctor & Schwartz Inc Method for feeding bulk material to plural supply locations
US2879905A (en) * 1956-07-27 1959-03-31 Foundry Equipment Ltd Charging of hoppers
US2931521A (en) * 1957-05-02 1960-04-05 Hartley Controls Corp Level control using alternating current through material of variable resistance
US3083423A (en) * 1961-09-18 1963-04-02 Hartley Controls Corp Automatic supplying, mixing, moisture control and delivery of granular material

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