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.)
Filing date
Publication date
Application filedfiledCritical
Priority to HUMO000909priorityCriticalpatent/HU169367B/hu
Priority to NL7507606Aprioritypatent/NL7507606A/xx
Priority to DD18742475Aprioritypatent/DD119143A5/xx
Publication of HU169367BpublicationCriticalpatent/HU169367B/hu
B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
B07B13/07—Apparatus in which aggregates or articles are moved along or past openings which increase in size in the direction of movement
