COUNTING MECHANISM Russian patent published in 1995 - IPC

FIELD: instruments. SUBSTANCE: device has digit-carrying drums 2, 5, 8, 11 and 14 according to number of digits, and driving gears 6, 9, 12, 15. Drums are rotated around geometrical axis 21, driving gears are rotated around geometrical axis 32. Each driving gear is located between adjacent digit- carrying drums, their geometrical axes are parallel. Counting mechanism has several sections. Each section (except first one) has housing 4, 7, 10 and 13, digit-carrying drum 5, 8, 11, 14 and driving gear 6, 9, 12, 15, while first section has housing 1 closed by face 3 and digit-carrying drum 2. Each digit-carrying drum 5, 8, 11, 14 and each driving gear 6, 9, 12, 15 have two pins 16 and 17 and 26 and 27; second pin 17 of drum from first section is engaged with whole 20 of face 3. All members of counting mechanism are made from same material, each digit-carrying drum with corresponding pins is made as a single member, each driving gear with its pins is made as a single member too. EFFECT: simplified design, facilitated manufacturing, in particular, simplified assembling, possibility for automatic assembling, increased range of working temperature. 2 cl, 11 dwg