| http://www.w3.org/ns/prov#value | - Figure 2 is a vertical cross section taken on lines 2-2 of Figure 1 showing the flashboard in its normal or raised position and illustrating the positions of the tripping devices and the releasing trigger. ' Figure 3 is a vertical cross sectional view along the lines 22 of Figure 1 illustrating the fiashboard and tripping mechanism in'its collapsed posit-ion.
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