Writer instrument of multiple units. (Machine-translation by Google Translate, not legally binding)

摘要

Writer instrument, of multiple units, characterized in that it comprises an elongated tubular cylinder having a rear end and a hole in the front writer end thereof and includes front and rear conical cylinder sections, capable of rotating relative to each other, a transversely extending spindle element positioned proximate the rear end of said cylinder, a pair of elongated writing elements capable of reciprocating longitudinally in said cylinder between advanced positions projecting through said holes and retracted positions, a flexible member elongate placed in said cylinder back from said hole and passing through a U-shaped path that extends around a supporting face of said spindle element facing said rear end and extending forward thereof and having ends opposite coupled with writers elements respect it is possible to move along with them, whereby the movement of one of said writing elements in one direction effects the movement of the other writing element in an opposite direction, and drive means capable of being manually operated to move longitudinally in a selective manner. To said writing elements and comprising a first guide member capable of rotating with said front cylinder section and having a pair of longitudinally extending guide slots and supporting said spindle element, respective cam follower members connected with each end of said flexible member and which are capable of sliding into respective guide grooves, means which engage each of said follower members with a respective writer element and a cylindrical cam capable of rotating with said rear cylinder section and which applies to said followers to move in this way what ngitudinally to dichoselementos writers in the opposite direction with a relative rotation of said cylinder sections. (Machine-translation by Google Translate, not legally binding)