Apparatus for collecting automatically fibrous materials suspended in air

Claim 1

APPARATUS FOR AUTOMATICALLY COLECTING DUST IN SUSPENSION IN AIR, COMPRISING IN COMBINATION, AT LEAST ONE HOLLOW BODY HAVING A BOTTOM, AIR PERVIOUS WALLS ENCLOSING A FIRST CHAMBER, IMPERVIOUS WALLS CONSTITUTING A CONTINUATION OF SAID PERVIOUS WALLS AND ENCLOSING A SECOND CHAMBER, AND A FREELY MOVABLE MEMBER FOR NORMAL CLOSING OF SAID BODY, A FAN MOUNTED WITHIN SAID HOLLOW BODY AND SEPARATING SAID FIRST CHAMBER FROM SAID SECOND CHAMBER, A REMOVABLE VESSEL MOUNTED UNDER SAID HOLLOW BODY FOR COLLECTING SAID DUST, MEANS FOR DRIVING SAID FAN IN A PREDETERMINED DIRECTION, AND CONTROL MEANS FOR MAKING SAID DRIVING MEANS OPERATIVE AND NONOPERATIVE, SAID FAN AND SAID MEANS FOR DRIVING SAID FAN BEING SO CONSTRUCTED AND ARRANGED, THAT WHEN SAID CONTROL MEANS MAKE SAID DRIVING MEANS OPERATIVE, TO FLOW A STREAM OF AIR UNDER PRESSURE FROM OUTSIDE SAID HOLLOW BODY TOWARDS SAID MOVABLE MEMBER THROUGH SAID PERVIOUS WALLS AND SAID FIRST AND SECOND CHAMBERS TO DISPLACE SAID MOVABLE MEMBER INTO A POSITION WHEREIN SAID HOLLOW BODY IS OPEN AND SUCKS DUST AGAINST SAID PERVIOUS SIDE WALL, AND WHEREBY WHEN SAID CONTROL MEANS MAKE SAID DRIVING MEANS INOPERATIVE, BUT BEFORE THE FAN BECOMES STATIONARY, TO REDUCE THE PRESSURE OF THE AIR STREAM TO REPLACE SAID MOVABLE MEMBER INTO ITS NORMAL POSITION AND TO FORCES THE REMAINING AIR STREAM FLOW WITHIN THE BODY FROM SAID SECOND CHAMBER TOWARDS THE OUTSDIE OF SAID HOLLOW BODY THROUGH SAID FIRST CHAMBER AND SAID PERVIOUS WALLS DUE TO WHICH DUST IS BLOWN OFF SAID HOLLOW BODY AND FALLS IN SAID VESSEL.