F - Mech Eng,Light,Heat,Weapons – 25 – D
Patent
F - Mech Eng,Light,Heat,Weapons
25
D
62/84
F25D 31/00 (2006.01)
Patent
CA 1181250
ABSTRACT A method of and an arrangement for cooling particularly of atmosphere and/or machines in underground mining, includes a high pressure liquid circuit and a low pressure liquid circuit in which two liquids having different temperatures and pressures are circulated and which are connected for direct and continuous exchange between the liquids by a three-chamber pipe feeder having chambers with blocking elements arranged at the ends of the chambers and operative in cooperation with manometers for taking charge of pressure increase and pressure decrease of the liquids in the chambers. -1-
402279
Fetherstonhaugh & Co.
Ruhrkohle Aktiengesellschaft
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