Method of lining a bearing shell

Claim 1

IN A METHOD FOR THE PRODUCTION OF LINED BEARING THE STEPS OF, HEATING A BEARING SHELL HAVING A LAYER OF TINNING MATERIAL BONDED THERETO TO A TEMPERATURE SUFFICIENT TO SOFTEN THE TINNING MATERIAL TO A SEMI-SOLID CONDITION, AND THEN SPRAYING A RELATIVELY THIN LAYER OF BABBITT ONTO THE LAYER OF TINNING MATERIAL WHILE THE TINNING MATERIAL IS IN SUCH SEMI-SOLID CONDITION TO EFFECT A FUSION OF THE BABBITT WITH THE TINNING MATERIAL WHEREBY THE APPLIED BABBITT AND THE TINNING MATERIAL ARE FIRMLY BONDED TO THE BEARING SHELL THE LAYER CONSISTING OF THE FUSED TINNING AND BABBITT MATERIAL BEING BETWEEN .004 AND .006 INCHES IN THICKNESS, AND THE INNER PORTION OF SAID BABBITT LAYER IS FUSED WITH SAID TINNING MATERIAL AND THE OUTER PORTION OF SAID BABBITT LAYER COMPRISES BABBITT MATERIAL ONLY AS THE TINNING AND BABBITT LAYERS COOL, THE THICKNESS OF THE APPLIED BABBITT LAYER BEING SUCH THAT THE FORCE OF SHRINKAGE DEVELOPED BY THE APPLIED BABBITT LAYER AS SAID BABBITT LAYER COOLS IS INSUFFICIENT TO AFFECT THE BOND BETWEEN THE TINNING MATERIAL AND THE BEARING SHELL.