Process and apparatus for manufacture of shellac

申请号 US73210247 申请日 1947-03-03 公开(公告)号 US2525970A 公开(公告)日 1950-10-17
申请人 LOCKE SPIER & COMPANY 1928 LTD; 发明人 NATHAN SPIER NORMAN; EMANUEL PHILLIPS;
摘要
权利要求
  • 3. APPARATUS FOR OBTAINING SHELLAC IN A FINELY DIVIDED FORM WITH A LOW MOISTURE CONTENT, COMPRISING A CENTRIFUGE BOWL HAVING FINE PERFORATIONS IN ITS SIDE WALLS, IN WHICH SHELLAC IN A PLASTIC STATE IS PLACED, MEANS FOR ROTATING THE BOWL AT A HIGH SPEED, A HOT AIR PIPE UNDER THE BOWL AND HAVING HOLES FOR DIRECTING JETS OF HOT AIR AGAINST THE PERIPHERAL PART OF THE BOWL, A HOT AIR PIPE ABOVE THE BOWL AND HAVING HOLES FOR DIRECTING JETS OF HOT AIR ON TO THE SHELLAC IN THE BOWL, A BLOWER AN AIR HEATER FOR SUPPLYING HOT AIR TO THE HOT AIR PIPES AND A CASING AROUND THE CENTRIFUGE BOWL HAVING PROJECTIONS EXTENDING INWARDLY THEREOF AND ADAPTED TO CATCH THE ENDS OF THE THREADS OF SHELLAC WHICH ARE EXPELLED HORIZONTALLY AS THE BOWL ROTATES AND ASSIST IN BREAKING THEM OFF.
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