GB465059A - Improvements in and relating to the automatic control of three phase alternating current slip-ring motors operating centrifugal or other pumps - Google Patents

Improvements in and relating to the automatic control of three phase alternating current slip-ring motors operating centrifugal or other pumps

Info

Publication number
GB465059A
GB465059A GB2988335A GB2988335A GB465059A GB 465059 A GB465059 A GB 465059A GB 2988335 A GB2988335 A GB 2988335A GB 2988335 A GB2988335 A GB 2988335A GB 465059 A GB465059 A GB 465059A
Authority
GB
United Kingdom
Prior art keywords
pumps
relating
alternating current
switch
automatic control
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
GB2988335A
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.)
RAGNAR ANDREW BOELLING HILLEST
Original Assignee
RAGNAR ANDREW BOELLING HILLEST
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 RAGNAR ANDREW BOELLING HILLEST filed Critical RAGNAR ANDREW BOELLING HILLEST
Priority to GB2988335A priority Critical patent/GB465059A/en
Publication of GB465059A publication Critical patent/GB465059A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

465,059. Liquid controllers. HILLESTAD, R. A. B. Oct. 29, 1935, No. 29883. [Class 38 (iii)] . [Also in Group XXXV] Electrodes 9 in a container are connected to an A.C. motor 1, driving a pump withdrawing fluid from the container, in such a way as to cause the speed of the motor to increase with rise of liquid level and vice versa. The electrodes may dip into electrolyte in a tank floating in the liquid. A switch 8 may connect the rotor circuit to a starting switch Z until the motor is up to speed, whereupon the switch 8 connects the electrodes to the rotor circuit. An interlock is included to prevent the operation of the starter unless the switch 8 be in its correct position.
GB2988335A 1935-10-29 1935-10-29 Improvements in and relating to the automatic control of three phase alternating current slip-ring motors operating centrifugal or other pumps Expired GB465059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2988335A GB465059A (en) 1935-10-29 1935-10-29 Improvements in and relating to the automatic control of three phase alternating current slip-ring motors operating centrifugal or other pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2988335A GB465059A (en) 1935-10-29 1935-10-29 Improvements in and relating to the automatic control of three phase alternating current slip-ring motors operating centrifugal or other pumps

Publications (1)

Publication Number Publication Date
GB465059A true GB465059A (en) 1937-04-29

Family

ID=10298731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2988335A Expired GB465059A (en) 1935-10-29 1935-10-29 Improvements in and relating to the automatic control of three phase alternating current slip-ring motors operating centrifugal or other pumps

Country Status (1)

Country Link
GB (1) GB465059A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277988B (en) * 1961-08-29 1968-09-19 Carl E Ryden Arrangement for the automatic speed control of an electric pump motor with the help of a fluid resistance
GB2303226A (en) * 1995-07-13 1997-02-12 Itt Ind Ltd Liquid level control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277988B (en) * 1961-08-29 1968-09-19 Carl E Ryden Arrangement for the automatic speed control of an electric pump motor with the help of a fluid resistance
GB2303226A (en) * 1995-07-13 1997-02-12 Itt Ind Ltd Liquid level control system

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