There are four washers and four dryers in the laundry room.
The kilns are closed at the top, and the gases are drawn out by powerful air-pumps, washers being interposed be,, veen the kilns and the pumps for the purpose of purifying and cooling the gas.
Every winter the supply is exhausted by the washers, and every summer it is renewed by the river.
Two or three of these washers are connected in series according to the quantity of gas to be dealt with.
A common problem with endfloat is a lack of thrust bearings or washers at the ends of the slow motion shaft.