FR2359780A1 - Controlling pick up of molten metal ladle - in which dynamometers on lifting cables compare loads with reference to sound alarm if incorrect - Google Patents

Controlling pick up of molten metal ladle - in which dynamometers on lifting cables compare loads with reference to sound alarm if incorrect

Info

Publication number
FR2359780A1
FR2359780A1 FR7623037A FR7623037A FR2359780A1 FR 2359780 A1 FR2359780 A1 FR 2359780A1 FR 7623037 A FR7623037 A FR 7623037A FR 7623037 A FR7623037 A FR 7623037A FR 2359780 A1 FR2359780 A1 FR 2359780A1
Authority
FR
France
Prior art keywords
dynamometers
molten metal
incorrect
metal ladle
sound alarm
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.)
Granted
Application number
FR7623037A
Other languages
French (fr)
Other versions
FR2359780B1 (en
Inventor
Rene Golhen
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.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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 Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Priority to FR7623037A priority Critical patent/FR2359780A1/en
Publication of FR2359780A1 publication Critical patent/FR2359780A1/en
Application granted granted Critical
Publication of FR2359780B1 publication Critical patent/FR2359780B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/12—Trolleys or crabs, e.g. operating above runways having hoisting gear adapted to special load-engaging elements and not otherwise provided for

Abstract

The pick of a molten metal ladle is controlled by means of a dynamometer fitted into each cable of the lifting beam. If the load is out-of-balance above a preset level, possibly due to incorrect hole engagement, an alarm is activated. Each dynamometer is connected in opposition and into an amplifier receiving and amplifying the difference between the signals emitted by the dynamometers. The amplifier is connected to a visual indicator and to level comparators, their positive and negative levels respectively being adjustable by potentiometers. The outputs from these comparators operate relay windings to activate alarms.
FR7623037A 1976-07-28 1976-07-28 Controlling pick up of molten metal ladle - in which dynamometers on lifting cables compare loads with reference to sound alarm if incorrect Granted FR2359780A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7623037A FR2359780A1 (en) 1976-07-28 1976-07-28 Controlling pick up of molten metal ladle - in which dynamometers on lifting cables compare loads with reference to sound alarm if incorrect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7623037A FR2359780A1 (en) 1976-07-28 1976-07-28 Controlling pick up of molten metal ladle - in which dynamometers on lifting cables compare loads with reference to sound alarm if incorrect

Publications (2)

Publication Number Publication Date
FR2359780A1 true FR2359780A1 (en) 1978-02-24
FR2359780B1 FR2359780B1 (en) 1979-06-29

Family

ID=9176257

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7623037A Granted FR2359780A1 (en) 1976-07-28 1976-07-28 Controlling pick up of molten metal ladle - in which dynamometers on lifting cables compare loads with reference to sound alarm if incorrect

Country Status (1)

Country Link
FR (1) FR2359780A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080679A2 (en) * 1981-11-30 1983-06-08 Westinghouse Electric Corporation Apparatus for removing and/or positioning fuel assemblies of a nuclear reactor
FR2526775A1 (en) * 1982-05-14 1983-11-18 Clemessy Position control for lifting tongs - esp. for lifting slabs from stack in soaking pit
EP0155217A1 (en) * 1984-03-16 1985-09-18 Novatome Safety device for load-hoisting equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080679A2 (en) * 1981-11-30 1983-06-08 Westinghouse Electric Corporation Apparatus for removing and/or positioning fuel assemblies of a nuclear reactor
EP0080679A3 (en) * 1981-11-30 1985-08-28 Westinghouse Electric Corporation Apparatus for removing and/or positioning fuel assemblies of a nuclear reactor
FR2526775A1 (en) * 1982-05-14 1983-11-18 Clemessy Position control for lifting tongs - esp. for lifting slabs from stack in soaking pit
EP0155217A1 (en) * 1984-03-16 1985-09-18 Novatome Safety device for load-hoisting equipment
FR2561226A1 (en) * 1984-03-16 1985-09-20 Novatome SAFETY DEVICE OF LOAD LIFTING APPARATUS

Also Published As

Publication number Publication date
FR2359780B1 (en) 1979-06-29

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Legal Events

Date Code Title Description
ST Notification of lapse