The representation of FIGS 2 and 3 illustrates the bar 12 in a most forward position, in which {HEAD ~ the rear end} located stop pin 20 abuts a rear ledge of {TAIL ~ the lower support} 32 and prevents the biasing spring 76 from forwardly displacing the bar 12 out of contact with the housing 
The representation of FIGS 2 and 3 illustrates the bar 12 in a most forward position , in which { HEAD ~ the rear end } located stop pin 20 abuts a rear ledge of { TAIL ~ the lower support } 32 and prevents the biasing spring 76 from forwardly displacing the bar 12 out of contact with the housing
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