ROTAMETER Russian patent published in 1995 - IPC

FIELD: measuring equipment. SUBSTANCE: rotameter has housing 1 with conical passage, supplying branch pipe 2, discharging branch pipe 3, fixed perforated plates 4,5, by-passing pipe 6 whereto float 7 is secured, and changeable washer 9. Perforated plates 10,11 are interposed between branch pipes 2,3 and plates 4,5 for permitting rotation in horizontal plane. A multi-path ball switch can be mounted instead of the supplying branch pipe. The bottom part of the by-passing pipe is rolled out and provided with spherical bore which abut on a ball. The housing of the switch has spring ring of round cross-section, cover, spring which interact with the bushing, seal, branch pipes for supplying fluid to be measured, and spindle. EFFECT: heightened accuracy of measuring. 5 cl, 3 dwg