In this connection, if the clasp assumed a longitudinal position, i.e., a position in which the coupled direction is perpendicular to the users body, {HEAD ~ the tension} on the clasp would act as {TAIL ~ a force} effective to pull apart the metallic parts on the lever principle if the body surface has a sharp curve 
act as
In this connection , if the clasp assumed a longitudinal position , i.e. , a position in which the coupled direction is perpendicular to the users body , { HEAD ~ the tension } on the clasp would act as { TAIL ~ a force } effective to pull apart the metallic parts on the lever principle if the body surface has a sharp curve
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH