As shown in FIG 1, the housing is fitted closely around the units, the amount of clearance being substantially that which is regarded as conventional, namely sufficient to permit rocking and vibration of {TAIL ~ the units} on their spring mountings without danger of striking {HEAD ~ the housing} 
As shown in FIG 1 , the housing is fitted closely around the units , the amount of clearance being substantially that which is regarded as conventional , namely sufficient to permit rocking and vibration of { TAIL ~ the units } on their spring mountings without danger of striking { HEAD ~ the housing }
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