Apparatus for hot wax carbon printing

Claim 1

IN A HOT WAX CARBON PRINTING MACHINE, THE COMBINATION COMPRISING: A WAX FOUNTAIN; FIRST HEARING MEANS TO MAINTAIN THE WAX IN SAID FOUNTAIN AT A FIRST ELEVATED TEMPERATURE TO RENDER IT FLOWABLE BUT OF RELATIVELY HIGH VISCOSITY; A ROTATABLE DIP ROLLER MOUNTED TO DIP WAX FROM SAID FOUNTAIN; A DOCTOR ROLLER ROTATABLY MOUNTED ADJACENT SAID DIP ROLLER TO RECEIVE WAX THEREFROM; A ROTATABLE BLANKET ROLLER; A ROLLER TRAIN ASSOCIATED WITH SAID DOCTOR AND BLANKET ROLLERS TO TRANSFER WAX FROM THE FORMER TO THE LATTER; A PLATE ROLLER ROTATABLY MOUNTED ADJACENT SAID BLANKET ROLLER AND ADAPTED TO ENGAGE IT; SECOND HEATING MEANS FOR HEATING THE WAX FILM CARRIED BY SAID PLATE ROLLER TO A SECOND TEMPERATURE HIGHER THAN SAID FIRST TEMPERATURE TO RENDER SAID WAX HIGHLY FLUID AND OF RELATIVELY LOWER VISCOSITY; AND AN IMPRESSION ROLLER ROTATABLY MOUNTED ADJACENT SAID PLATE ROLLER AND ADAPTED TO SUPPORT A SHEET OF PAPER TO BE PRINTED BY SAID PLATE ROLLER.