method and means of production and the use of armor to attack in one piece.plastic grinding wheels tangenziali incorporating such armor and armor and amount tangenziali obtained with such process and means

摘要

The method for the production and use of plastic attachment supports consists in preparing a support injection-moulded in one piece incorporating the protective tabs of the dovetail coupling, in which the tabs are joined to the body of the support by breakable bridges. These tabs are immobilized in conditions of prebreakage in respect of stresses whether directed in the descending or ascending direction. The support 1, which has two planes, the lower 10 of which being in the shape of an isosceles trapezium and the upper 11 being of dovetail strength, and is internally hollow, with a lattice 12 having the dual function of reinforcing the support and being an anchor, comprises according to the present invention a pair of tabs 4, 4' joined to the body at least on the side adjacent to the dovetail by means of no more than a few, relatively minuscule bridges 40 separated by slits 41. IMAGE