The right hand end of the pressure shaft 34 has {HEAD ~ a support 35 secured thereto} for supporting the base of a pressure arm having a pressure foot at the leading end positioned above and facing the sub foot dog 14 so that {TAIL ~ the pressure arm} can rotate about a vertical axis 
The right hand end of the pressure shaft 34 has { HEAD ~ a support 35 secured thereto } for supporting the base of a pressure arm having a pressure foot at the leading end positioned above and facing the sub foot dog 14 so that { TAIL ~ the pressure arm } can rotate about a vertical axis
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