公开(公告)号：US3582310A

公开(公告)日：1971-06-01

申请号：US3582310D

申请日：1968-11-04

Applicant: EMHART CORP

Inventor： AVERY CHARLES R ,  CALL JOHN H

IPC: C03B5/24 ,  C03B7/06 ,  C03B5/16

CPC classification number: C03B5/24 ,  C03B7/06

Abstract: THE FOREHEARTH HAS A CHANNEL THROUGH WHICH MOLTEN GLASS FLOWS TOWARD A FEED BOWL LOCATED AT THE DOWNSTREAM END THEREOF. THE CHANNEL STRUCTURE IS COOLED ALONG ITS CENTRAL PORTION BY AIR CIRCULATED THROUGH A LONGITUDINALLY EXTENDING PASSAGEWAY DEFINED ALONG THE CENTER LINE OF THE CHANNEL STRUCTURE. A PLURALITY OF BURNERS FIRE LATERALLY INTO THE SPACE ABOVE THE MOLTEN GLASS IN THE CHANNEL, AND A ROOF STRUCTURE DEFINES FLUES FOR CARRYING
OFF THE EXHAUST GASSES. THE ROOF STRUCTURE HAS INTERNALLY COOLED ARCH OR KEYSTONE BLOCKS WHICH DEFINE INDIVIDUAL CHAMBERS THROUGH WHICH COOLING AIR CAN BE CIRCULATED INDEPENDENTLY OF THE EXHAUST GAS FLUES TO COOL THE CENTER PORTION OF THE ROOF STRUCTURE, AND CONSEQUENTLY REDUCE TRANSVERSE TEMPERATURE GRADIENTS IN THE FOREHEARTH.