Dressing grinding wheels, and the like

Claim 1

A SELF-CONTAINED UNIT FOR DRESSING THE CIRCULAR SURFACES OF GRINDING WHEELS, COMPRISING IN COMBINATION A BASE BLOCK HAVING A SMOOTH PLANAR MOUNTING SURFACE FOR SUPPORT ON A TABLE-LIKE ELEMENT, A PRIMARY ARM PIVOTALLY MOUNTED TO SAID BASE BLOCK FOR ROCKING MOVEMENT ABOUT A FIRST DEFINED AXIS LYING IN A PLANE WHICH INTERSECTS THE MOUNTING SURFACE OF THE BASE BLOCK, MEANS TO LOCK THE PRIMARY ARM AND THE BASE BLOCK TOGETHER IN ANGULARLY ADJUSTED POSITION, A SECONDARY LINK ELEMENT PIVOTALLY CONNECTED TO THE FREE END OF THE PRIMARY ARM FOR ANGULAR MOVEMENT WITH RESPECT TO THE PRIMARY ARM ABOUT A SECOND DEFINED AXIS SUBSTANTIALLY PARALLEL TO THE FIRST DEFINED AXIS, MEANS TO LOCK THE SECONDARY LINK AND THE PRIMARY ARM IN ANGULARLY ADJUSTED POSITION, A DRESSING UNIT CARRIER PIVOTALLY CONNECTED TO THE FREE END OF THE SECONDARY LINK ELEMENT FOR ROCKING MOVEMENT ABOUT A THIRD DEFINED AXIS SUBSTANTIALLY PARALLEL TO THE FIRST DEFINED AXIS AND THE SECOND DEFINED AXIS, MEANS TO LOCK THE DRESSING UNIT CARRIER AND THE SECONDARY LINK IN ANGULARLY ADJUSTED POSITION, A DRESSING UNIT HOLDER, A DRESSING UNIT AND CUTTING ELEMENT, MEANS TO PIVOTALLY CONNECT THE DRESSING UNIT TO THE DRESSING UNIT HOLDER FOR ANGULAR ADJUSTMENT ABOUT AN AXIS WHICH INTERSECTS THE PLANE WHICH INCLUDES THE DRESSING UNIT HOLDER, MEANS TO LOCK THE DRESSING UNIT IN ANGULARLY ADJUSTED POSITION WITH RESPECT TO THE DRESSING UNIT HOLDER, AND MEANS TO CONNECT THE DRESSING UNIT HOLDER TO THE DRESSING UNIT CARRIER COMPRISING MEANS CONSTITUTED TO SUPPORT THE DRESSING UNIT HOLDER TO THE CARRIER FOR BACK AND FORTH MOVEMENT OF THE DRESSING UNIT HOLDER WITHIN A PLANE WHICH INTERSECTS THE FIRST DEFINED AXIS, AND THE SECOND DEFINED AXIS, AND THE THIRD DEFINED AXIS.