Method of making a cellular structural panel and product

Claim 1

THE METHOD OF MAKING A STRCTURAL PANEL INCLUDING LATERALLY SPACED SKINS OF HIGH STRENGTH, LIGHTWEIGHT STRUCTURAL MATERIAL AND A CELLULAR BODY OF PAPER THEREBETWEEN, WHICH COMPRISES MOISTURE IMPREGNATING SHEET PAPER STOCK, LOOPING SUCCESSIVE PORTIONS OF THE MOISTURE IMPREGNATED SHEET PAPER STOCK ABOUT A FIRST ROW OF FORMING MEMBERS AND ABOUT A SECOND ROW OF FORMING MEMBERS ARRANGED ALTERNATIVELY WITH THE MEMBERS OF THE FIRST ROW TO THEREBY RESPECTIVELY FORM INTEGRALLY CONTINUOUS FIRST AND SECOND ROWS OF CELL-FORMING WALLS, HEATING THE STOCK WHEN THE SAME IS LOOPED ABOUT SAID FORMING MEMBERS TO REMOVE THE MOISTURE CONTENT THEREOF AND SET SAID WALLS IN CELL FORMATION, REMOVING SAID CELL-FORMING WALLS FROM SAID FORMING MEMBERS, PRESSING THE ADJACENT CELL-FORMING WALLS OF EACH ROW INTO MUTUALLY SUPPORTING CONTACT ONE WITH THE OTHER, TREATING THE CELL FORMING WALLS WITH MEANS FOR RIGIDIFYING AND ADHERING THE SAME TOGETHER, ARRANGING A FACING SKIN ONE OVER EACH END OF THE CELLS AND ADHERING THE SAME TO CELL-FORMING WALLS AT EACH END THEREOF.