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Machine translation
1. (WO1979000915) A LOW-PROFILE CRANE WITHOUT TOPPING TOWER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000915    International Application No.:    PCT/GB1979/000054
Publication Date: 15.11.1979 International Filing Date: 30.03.1979
IPC:
B66C 23/10 (2006.01), B66C 23/82 (2006.01)
Applicants:
Inventors:
Priority Data:
14220/78 11.04.1978 GB
Title (EN) A LOW-PROFILE CRANE WITHOUT TOPPING TOWER
(FR) GRUE BASSE SANS PYLONE D"ETETAGE
Abstract: front page image
(EN)A hoisting line (9) extends from a winch (8), over a second pulley (12) at the head end (3) of the jib (1) of a crane, around a movable pulley (14) and over a third pulley (13) at the head end (3) of the jib (1) to a depending load hook (18). The movable pulley (14) is supported by a topping line (7) which extends over a first pulley (11) at the tail end (2) of the jib (1), around a fifth pulley (15) fixedly mounted on the base (4) of the crane and is attached to the first pulley (11). Loading in the hoisting line (9) is therefore transferred to the topping line (7) extending between the first and fifth pulleys (11 and 15) and topping of the jib (1) about an axis (5) between the tail and head ends (2 and 3) is effected by a light-weight piston-cylinder assembly (6).
(FR)Un cable de levage (9) part d"un treuil (8), passe sur une seconde poulie (12) du cote de la tete (3) de la fleche (1) d"une grue, autour d"une poulie mobile (14) et par-dessus une troisieme poulie (13) du cote tete (3) de la fleche (1) et vers un crochet de charge (18). La poulie mobile (14) est supportee par un cable d"etetage (7) qui passe par-dessus une premiere poulie (11) du cote queue (2) de la fleche (1), autour d"une cinquieme poulie (15) montee fixe sur la base (4) de la grue et est attachee a la premiere poulie (11). La charge du cable (9) est ainsi transferee au cable d"etetage (7) s"etendant entre la premiere et la cinquieme poulies (11 et 15) et l"etetage de la fleche (1) autour d"un axe (5) entre la queue et la tete (2 et 3) s"effectue a l"aide d"un assemblage a piston-cylindre de petite charge (6).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)