Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL107482CpublicationCriticalpatent/NL107482C/xx
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C7/00—Digesters
D21C7/14—Means for circulating the lye
B—PERFORMING OPERATIONS; TRANSPORTING
B66—HOISTING; LIFTING; HAULING
B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
B66C13/00—Other constructional features or details
B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins