A device for disentangling and spreading short steel fibers used for the reinforcement or crack prevention of concrete or mortar employed for civil engineering works, building constructions or the like. The device comprises a hopper for storing short steel fibers which has a bottom opening which is connected...http://www.google.ca/patents/US4167248?utm_source=gb-gplus-sharePatent US4167248 - Device for disentangling and spreading short steel fibers
