In cases of hire of labor or services, if the identical article, though materially changed by the labor bestowed, is to be returned, the title remains in the bailor. If the bailee furnishes a portion of the materials, the title to the entire structure is in the party furnishing the larger portion of the materials. If the bailor furnishes materials but the contract does not contemplate the use of that material specially, the title to the article constructed is in the bailee until it is delivered. If materials are furnished to the bailee for manufacture and the bailee and the bailor will each receive a share of the manufactured goods, the title remains in the bailor until the delivery to him of his portion of the manufactured goods.