INSTRUMENT FOR WRITING Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: sectional washers 2 having channel 3 located along the axle are mounted in body-reservoir 1. Sections 2 are in communication with channel 3 by means of holes 4 and between themselves and with atmosphere at the expense of gap 7. A section of greater dimensions communicating with atmosphere and non-communicating with channel 3 is located between capillary 5 and sections 2. Sectional washers 2 have chamferings made along the perimeter from the rear side. Spring-loaded needle 14 can be mounted in capillary 5. EFFECT: simpler design. 1 cl, 4 dwg