GB622842A - Improvements relating to electrical driving control means for conveyors - Google Patents

Improvements relating to electrical driving control means for conveyors

Info

Publication number
GB622842A
GB622842A GB2997946A GB2997946A GB622842A GB 622842 A GB622842 A GB 622842A GB 2997946 A GB2997946 A GB 2997946A GB 2997946 A GB2997946 A GB 2997946A GB 622842 A GB622842 A GB 622842A
Authority
GB
United Kingdom
Prior art keywords
conveyer
contacts
speed switch
relay
coil
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
GB2997946A
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.)
M & C Switchgear Ltd
Original Assignee
M & C Switchgear 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 M & C Switchgear Ltd filed Critical M & C Switchgear Ltd
Priority to GB2997946A priority Critical patent/GB622842A/en
Publication of GB622842A publication Critical patent/GB622842A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/54Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2811/00Indexing codes relating to common features for more than one conveyor kind or type
    • B65G2811/09Driving means for the conveyors
    • B65G2811/091Driving means for the conveyors the conveyor type being irrelevant
    • B65G2811/093Control means for automatic stop, start or warning variation during conveying operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Conveyors (AREA)

Abstract

622,842. Endless-belt conveyers. M. & C. SWITCHGEAR, Ltd., and MORRISON, R. Oct. 8, 1946, No. 29979. [Class 78 (i)] [Also in Group XXXVII] A conveyer in which a circuit controls the starting and stopping of the driving means and a speed switch is operated by the conveyer to be closed only when the speed is above a predetermined amount has a relay coil in the circuit and also in parallel with the speed switch and contacts which are opened by energisation of the coil, but which, when closed, short circuit the speed switch and a time lag device controlling the opening of the contacts for sufficient time to enable the speeding up of the conveyer to close the speed switch whereby also when the conveyer is caused to slow down the speed switch opens and breaks the control circuit stopping the conveyer. As shown in Fig. 1 the delivery conveyer K has a speed switch D and a driving motor G, controlled by a circuit including the normally closed contacts C<SP>1</SP> of a relay C. The circuit is connected to the mains through the coil of a relay B and a speed switch A of a receiving conveyer M and a current overtrip V. The coil of the relay C is in parallel with the coil of 'relay B, and the normally open contacts B<SP>1</SP> of relay B in series with contactor coil J are in parallel with the motor control circuit. In operation, the receiving conveyer M is driven to working speed the switch A closes and the coils are energised opening contacts C<SP>1</SP> and closing contacts B<SP>1</SP> thus starting the delivery conveyer K. A time lag on contacts C<SP>1</SP> enables the starting of the motor before the speed switch D is short circuited. If the receiving conveyer M is stopped the speed switch is opened and the relays are de-energised. The contacts B<SP>1</SP> open and the conveyer M is stopped. The contacts C<SP>1</SP> close to permit sequence restart. A manual switch F can eliminate sequence control. Any number of tributory conveyers feeding in parallel onto a common receiving conveyer may be sequenced in a similar manner. If the belt of conveyer K should break and the speed decreases, the speed switch D opens and the coils are de-energised. The contacts B<SP>1</SP> open and the conveyer stops. The contacts C<SP>1</SP> are maintained open by a latch connecting the two and can only be manually reengaged to permit normal working.
GB2997946A 1946-10-08 1946-10-08 Improvements relating to electrical driving control means for conveyors Expired GB622842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2997946A GB622842A (en) 1946-10-08 1946-10-08 Improvements relating to electrical driving control means for conveyors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2997946A GB622842A (en) 1946-10-08 1946-10-08 Improvements relating to electrical driving control means for conveyors

Publications (1)

Publication Number Publication Date
GB622842A true GB622842A (en) 1949-05-09

Family

ID=10300292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2997946A Expired GB622842A (en) 1946-10-08 1946-10-08 Improvements relating to electrical driving control means for conveyors

Country Status (1)

Country Link
GB (1) GB622842A (en)

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