Horizontal earth boring machine

Claim 1

A MANUALLY PORTABLE POWER OPERATED HORIZONTAL DRILLING APPARATUS COMPRISING A SUPPORTING FRAME WITH SUPPORT MEANS ATTACHED THERETO, A SOURCE OF POWER MOUNTED UPON SAME FRAME AND INCLUDING A GENERALLY HORIZONTAL ROTATABLE POWER SHAFT, A DRILL SPINDLE, SAID POWER SHAFT AND DRILL SPINDLE HAVING LONGITUDINALLY SPACED ADJACENT ENDS, MEANS SUPPORTING AND JOURNALING SAID SPINDLE UPON SAID FRAME FOR ROTATION ABOUT AN AXIS IN SIDEBY-SIDE RELATION AND GENERALLY PARALLEL TO THAT OF SAID POWER SHAFT, A REDUCTION GEAR ASSEMBLY CONNECTING SAID ADJACENT ENDS, SAID SPINDLE HAVING A PASSAGE EXTENDING LONGITUDINALLY THEREINTO FROM SAID SPINDLE ADJACENT END AND TERMINATING INWARDLY OF THE OTHER SPINDLE END, A WATER JACKET COMPRISING A HOLLOW BODY SURROUNDING SAID SPINDLE IN SEALED ENGAGEMENT THEREWITH AND DEFINING A WATER CHAMBER THEREABOUT, MEANS ESTABLISHING CONTINUOUS COMMUNICATION BETWEEN SAID PASSAGE AND WATER CHAMBER, MEANS SUPPLYING WATER INTO SAID WATER CHAMBER, A HOLLOW DRILL STRING SECURED TO AND DRIVEN BY SAID SPINDLE AND HAVING COMMUNICATION WITH SAID SPINDLE PASSAGE, A DRILL BIT INCLUDING JET ORIFICES SECURED TO THE OUTER END OF SAID DRILL STRING, SAID DRILL STRING HAVING SUFFICIENT LATERAL FLEXIBILITY TO ENABLE SAID DRILL BIT AND DRILL STRING TO OPERATE IN A SUBSTANTIALLY HORIZONTAL POSITION BELOW GROUND WHEN SAID POWER SHAFT IS POSITIONED SUBSTANTIALLY HORIZONTALLY ABOVE GROUND AND WHILE SAID APPARATUS IS BEING MANUALLY SUPPORTED AND MOVED ALONG THE GENERAL DIRECTION OF SAID DRILL STRING, SAID WATER JACKET BEING SPACED FROM SAID LIES BETWEEN SAID SPINDLE ADJACENT END AND SAID SPINDLE SUPPORTING AND JOURNALING MEANS.