B - Operations – Transporting – 60 – P
Patent
B - Operations, Transporting
60
P
340/144, 296/16,
B60P 3/22 (2006.01) A01C 23/00 (2006.01) G01F 23/36 (2006.01) F02B 1/04 (2006.01)
Patent
CA 1158279
ABSTRACT Tank wagons for transporting liquid material are disclosed having a suction pump (3) for drawing liquid material into the tank. Various devices are disclosed associated with the problem that liquid drawn into the tank should not reach the pump. In one form in addition to a valve (14,15) isolating the pump (3), electrodes (16,17) are provided which are short-circuited if liquid passes the valve, by the liquid, to energize a relay-operated switch to stop the engine (4) driving the pump (3). Also disclosed are indicators in the form of lamps or an acoustic horn, operated by short-circuiting of electrodes within the tank, to give an indication of the liquid level within the tank. In a further form a float within the tank actuates an ammeter outside the tank to give a signal representative of the liquid level within the tank.
351478
Fetherstonhaugh & Co.
Van Der Lely (c.) N.v.
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