Abstract: An applicator dispenser has a container defining a tank with a lateral wall and a neck integral with a wiper. An applicator includes a cap having an outer shell and a threaded insert, and an axial wand fixedly attached to the insert and to an application means. The lateral wall of the tank forms at its upper part a straight skirt. The container has a closure component having an upper part forming the neck, a peripheral part engaging in a sealed way with the straight skirt, and a lower part engaging with the wiper forming a forward axial stop for the wiper. The wiper has a central part forming a swaged wiping part and a lateral part engaging with the lower part of the closure component.

Abstract: An applicator dispenser has a container defining a tank with a lateral wall and a neck integral with a wiper. An applicator includes a cap having an outer shell and a threaded insert, and an axial wand fixedly attached to the insert and to an application means. The lateral wall of the tank forms at its upper part a straight skirt. The container has a closure component having an upper part forming the neck, a peripheral part engaging in a sealed way with the straight skirt, and a lower part engaging with the wiper forming a forward axial stop for the wiper. The wiper has a central part forming a swaged wiping part and a lateral part engaging with the lower part of the closure component.

Abstract: Two pressure wheels are mounted on respective support parts and are pressed against respective edges of print medium by a common force-applying device such as a cable acting substantially equally on two mechanical devices on which the pressure wheels are mounted in order to transmit substantially identical forces thereto; each wheel may be mounted at one end of a lever which is hinged to the corresponding support part and which supports a pulley over which the cable passes.

Abstract: The structural base unit of the machine is made of a one-piece shaped beam (40) which extends along a first direction (Y) with a first portion (41) which, due to its own stiffness, supports and guides the carriage (12) carrying the writing head (11) along its translational motion in the first direction (Y), and with second and third portions (45) which defines supporting surfaces for the drum (20) driving the printing medium in a second direction (X) perpendicular to the first direction (Y). Guiding of the carriage (12) is ensured by rails (43, 44) formed integral with the beam or attached to it, and a slot (50) cut in the shaped beam (40) along the action area of the writing head for providing a passage for the printing medium and its engagement with the drum (20).

Abstract: The body of a writing member is movable in translation between a rest position and a work position, at least partly under the action of a magnetic force, and is permanently held against at least one guide element carried by the support, by means of a magnetic attraction force acting transversely relative to the direction of displacement in translation of the writing member.

Abstract: A development installation and storage device for an electrostatic printer which uses liquid developer is provided. The device includes a removable reservoir having a first compartment for liquid developer and a second compartment for concentrate of the liquid developers, the two compartments being separated by a wall and having respective openings adjacently disposed on each side of the wall. A connector on the reservoir connects the development station of the electrostatic printer with the first and second compartments through the respective openings, and a closing member is removably attached to the connector for tightly insulating the first and second compartments during transportation of the reservoir.

Abstract: A pencil device for a plotting machine comprises a housing (10) including a barrel (13) with a passage (13a) therethrough for receiving a lead (12) said passage having an exit for the lead at a forward end of said barrel; lead feeding means (11, 14, 15) located in said housing for containing spare leads and for continuously feeding the passage of said barrel with a lead; lead driving means (16, 17) for pressing the lead located in the passage against the recording medium during a writing operation; and means (36) for urging the forward end of the barrel in contact with the recording medium so that a consumed lead is replaced by a new lead without interrupting a trace being produced.