FLOW INDICATOR-COUNTER FOR VACUUM-OPERATED MILK LINE Russian patent published in 1995 - IPC

FIELD: agricultural engineering. SUBSTANCE: milk flow indicator-counter has chambers open to each other via valve 3. The chambers are measuring chamber 4 and receiving chamber 2 provided with float 6. Hose 5 connects measuring chamber 4 to the milk line. The device is provided with counting mechanism 11. Stem 7 connects the float to valve 8 mounted between chamber 2 and branch pipe 9. A pulser connected to the latter is also connected to counting mechanism 11 and air-operated relay 12. The latter is in communication with variable vacuum tube 13. As the level of milk in receiving chamber 2 rises, float 6 floats up to move stem 7. The stem opens valve 8 to connect it with pulser 10. The latter sends pulses to counting mechanism 11 and the air-operated relay, and the relay makes chamber 4 open to the atmosphere or the vacuum line. The valve rises to separate measuring chamber 4 from receiving chamber 2, and air forces milk through hose 5 into milk line 1. As vacuum is let in measuring chamber 4, valve 3 opens to let milk fill chamber 4. EFFECT: higher efficiency. 3 cl, 1 dwg