Published September 20, 1985 | Version v1
Patent Metadata-only

Safety mechanism of a lifting machine

Creators

Description

The lifting machine has at least one winch supporting a chain which passes around a chain pulley in a roller block attached to the load. At least one locking mechanism prevents the rotation of the pulley within the block. The locking mechanism can moves between an out-of-operation position and a locking position. A control system includes load sensors associated with the winch sensing the weight of the load acting through the chain. If one part of the chain should break, the load sensors detect this, and the locking mechanism is activated. The invention applies, more particularly, to the handling winches in a fast neutron nuclear power plant

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

L'invention concerne un dispositif de securite d'un appareil de levage comportant au moins un treuil a chaine et une moufle portant une poulie a chaine. Le dispositif comporte au moins un moyen de blocage de la poulie par rapport a la moufle mobile entre une position hors service et une position de blocage. Un ensemble de commande comprenant au moins un capteur de charge sur lequel s'applique le poids de la charge par l'intermediaire des brins de la chaine permet de declencher le blocage de la poulie en cas de rupture d'un des brins de la chaine. L'invention s'applique, en particulier, aux treuils de manutention dans une centrale nucleaire a neutrons rapides

Additional details

Additional titles

Original title (French)
Dispositif de securite d'un appareil de levage d'une charge

Publishing Information

Imprint Pagination
17 p.
IPC:
Int. Cl. B66c15/02.
IPC
Int. Cl. B66c15/02.
Patent number
FR patent document 2561226/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
17083351
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S42: ENGINEERING;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
FAST REACTORS; REACTOR COMPONENTS; SAFETY; SPECIFICATIONS; WINCHES
Descriptors DEC
EPITHERMAL REACTORS; EQUIPMENT; REACTORS

Optional Information

Secondary number(s)
FR patent application 8404054.