Apparatus for molding particle boards of improved quality

Claim 1

AN APPARATUS FOR MOLDING BOARDS AND THE LIKE COMPRISING A PRESS INCLUDING A SERIES OF HOT PLATES HAVING OPPOSED SURFACES ARRANGED IN GENERALLY VERTICAL PARALLEL PLANES, MEANS SUPPORTING SAID HOT PLATES FOR MOVEMENT IN A GENERALLY HORIZONTAL DIRECTION PERPENDICULAR TO THE OPPOSED SURFACES AND TOWARD AND AWAY FROM ONE ANOTHER, MEANS FOR FORCING SAID PLATES TOGETHER TO CLOSE THE PRESS, FLEXIBLE METAL CAUL SHEETS ARRANGED IN PAIRS BETWEEN SAID HOT PLATES, THE SURFACES OF SAID SHEETS BEING GENERALLY FREE OF DIRECT FACE CONTACT WITH SAID HOT PLATES WHEN SAID PLATES ARE MOVED APART, MEANS AT THE TOP OF SAID HOT PLATES SUPPORTING SAID CAUL SHEETS, MEANS HOLDING SAID CAUL SHEETS, CLOSER TOGETHER AT THEIR LOWER ENDS THAN AT THEIR UPPER ENDS WHEN THE PRESS IS OPEN, MEANS PROVIDING A BOTTOM CLOSURE FOR THE SPACE BETWEEN SAID CAUL SHEETS, SAID CAUL SHEETS FLEXING AGAINST SAID HOT PLATES WHEN SAID PRESS IS CLOSED.