Ball joint device

Claim 1

A BALL JOINT CONSTRUCTION PARTICULARLY FOR THE CONNECTION OF WHEEL GUIDE MEMBERS TO THE AXLE SPINDLE BOLT OF STEERING WHEELS OF MOTOR VEHICLES, COMPRISING A HOUSING HAVING A LINING WITH A SUBSTANTIALLY SPHERICAL BEARING SURFACE, A BALL JOINT MEMBER HAVING A SUBSTANTIALLY SPHERICAL EXTERIOR SURFACE IN SLIDING ENGAGEMENT WITH SAID BEARING SURFACE AND HAVING A BORE DEFINED THERETHROUGH, AN AXLE SPINDLE BOLT INSERTED INTO ONE END OF THE BORE OF SAID BALL JOINT, SAID SPINDLE BOLT HAVING A THREADED BORE DEFINED IN AN END THEREOF, A SECURING SCREW EXTENDING INTO THE BORE OF SAID BALL JOINT MEMBER FROM THE END OPPOSITE TO SAID AXLE SPINDLE BOLT AND THREADED INTO THE BORE OF SAID AXLE SPINDLE BOLT AND HOLDING SAID BALL JOINT MEMBER TO SAID AXLE SPINDLE BOLT, SEAL MEANS CONNECTED BETWEEN SAID HOUSING AND SAID SPINDLE BOLT AND HOUSING BEING PIVOTAL ON SAID BALL JOINT MEMBER AND HAVING AN ACCESS OPENING ALIGNABLE WITH THE SECURING SCREW FOR INSERTION AND REMOVAL THEREOF, AND SECURING SCREW FOR INSERTION DEFINED THERETHROUGH FOR INSERTING LUBRICANT FROM SAID ACCESS OPENING THROUGH SAID BORE SAID AXLE SPINDLE BEING PROVIDED WITH A LUBRICATING PASSAGE CONNECTED TO SAID BORE OF SAID SECURING SCREW ASND TO THE SPACE AROUND SAID AXLE SPINDLE BETWEEN SAID AXLE SPINDLE AND SAID HOUSING WITHIN SAID SEAL MEANS FOR DISTRIBUTING THE LUBRICATION.