E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
E04G21/12—Mounting of reinforcing inserts; Prestressing
E04G21/121—Construction of stressing jacks
B—PERFORMING OPERATIONS; TRANSPORTING
B66—HOISTING; LIFTING; HAULING
B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
B66D3/00—Portable or mobile lifting or hauling appliances
B66D3/02—Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction
Landscapes
Engineering & Computer Science
(AREA)
Architecture
(AREA)
Mechanical Engineering
(AREA)
Civil Engineering
(AREA)
Structural Engineering
(AREA)
Hand Tools For Fitting Together And Separating, Or Other Hand Tools
(AREA)
Procede d'introduction d'une tige de percage dans le trou de coulee d'un four a cuve,machine de percage et pince prevue pour une telle machine
Procédé d'introduction d'un tige de perçage dans le trou de coulée d'un four à cuve, machine de perçage et pince grévue pour une telle machine