Print hammer modules for high speed printers

Claim 1

A HAMMER MODULE COMPRISING, A FRAME CONSISTING OF FIRST AND SECOND SIDE PLATES AND A THIRD PLATE INTERMEDIATE SAID FIRST AND SECOND PLATES, A FIRST AND SECOND SHAFT POSITIONED IN PARALLEL SEPARATED LOCATIONS AND EXTENDING THROUGH SAID THIRD PLATE AND INTO SAID FIRST AND SECOND SIDE PLATES, A FIRST BEARING MOUNTED ON SAID FIRST SHAFT AND EXTENDING BETWEEN SAID FIRST AND THIRD PLATES, A SECOND BEARING MOUNTED ON SAID FIRST SHAFT AND EXTENDING BETWEEN SAID SECOND AND THIRD PLATES, A THIRD BEARING MOUNTED ON SAID SECOND SHAFT AND EXTENDING BETWEEN SAID FIRST AND THIRD PLATES, A FOURTH BEARING MOUNTED ON SAID SECOND SHAFT AND EXTENDING BETWEEN SAID SECOND AND THIRD PLATES, A FIRST PRINTING HAMMER MOUNTED ON SAID FIRST BEARING ON THE END ADJACENT SAID FIRST PLATE, A SECOND PRINTING HAMMER MOUNTED ON SAID SECOND BEARING ON THE END ADJACENT SAID THIRD PLATE, A THIRD PRINTING HAMMER MOUNTED ON SAID THIRD BEARING AT THE END ADJACENT SAID THIRD PLATE, A FOURTH PRINTING HAMMER MOUNTED ON SAID FOURTH BEARING AT THE END ADJACENT SAID SECOND PLATE, EACH OF SAID PRINTING HAMMERS HAVING A PRINTING HEAD AT ONE END THEREOF, SAID PRINTING HEADS BEING ALIGNED, EACH OF SAID PRINTING HAMMERS HAVING A SOFT MAGNETIC ARMATURE AT THE OTHER END THEREOF, SAID FIRST AND SECOND PRINTING HAMMERS BEING SUBSTANTIALLY STRAIGHT, SAID THIRD AND FOURTH PRINTING HAMMERS BEING SHAPED ABOUT THE SECOND SHAFT SO THAT THE ANGLE DEFINED BY SAID PRINTING HEAD, SECOND SHAFT, AND ARMATURE IS AN OBTUSE ANGLE, AND ELECTROMAGNETIC COILS POSITIONED ADJACENT EACH ARMATURE TO ACTUATE EACH PRINTING HAMMER SELECTIVELY.