ES206881U - Tool to molete. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Knurling tool, which is constituted by a gripping handle in whose front end is determined jointly a head oriented transversely, which, coupled at their two free ends corresponding pressure arms slightly and symmetrically curved towards the center linked together by means of a bolt, under the circumstance that the intermediate section of the said bolt comprised between the two arms is surrounded by a helical spring that acts permanently on them keeping them with tendency to separate so that their operative position is adjusted by means of simple maneuvering exerted on the nut of the bolt, whereby the knurling wheels, mounted on the free ends of said arms, can be perfectly coupled in diametral position on the piece to be machined, is essentially characterized by the fact that the bolt head is hemispherical and sits in a corresponding concavity semi-spherical element provided for this purpose on the external face of the respective pressor arm, as an extension of the through hole pierced by the bolt itself, with the other arm having the same concavity in which a hemispherical washer located in front of the tightening nut is housed; forming part of it, and all this appropriately so that the seat is complete and adjusted for all the effective angular positions of the arms. (Machine-translation by Google Translate, not legally binding)