r ified ▁at ▁ 6 0 0 ▁V ▁DC ▁in ▁ 1 9 2 2 , ▁and ▁extended ▁to ▁Y atom i ▁the ▁following ▁year . ▁The ▁company ▁merged ▁with ▁Me it ets u ▁in ▁ 1 9 2 5 . ▁ ▁In ▁ 1 9 4 8 , ▁the ▁voltage ▁on ▁the ▁Y atom i ▁to ▁Ts ush ima ▁section ▁was ▁raised ▁to ▁ 1 , 5 0 0 ▁V ▁DC , ▁with ▁this ▁increase ▁extended ▁to ▁the ▁rest ▁of ▁the ▁line ▁in ▁ 1 9 5 2 . ▁The ▁K iso - Min ato ▁to ▁Tam ano i ▁section ▁closed ▁in ▁ 1 9 5 9 . ▁The ▁Ts ush ima ▁to ▁Mor ik ami ▁section ▁was ▁double - track ed ▁between ▁ 1 9 6 7 ▁and ▁ 1 9 7 4 . ▁ ▁References ▁This ▁article ▁incorpor ates ▁material ▁from ▁the ▁corresponding ▁article ▁in ▁the ▁Japanese ▁Wikipedia . ▁ ▁Category : R ail ▁transport ▁in ▁A ichi ▁Pref ect ure ▁Bis ai ▁Line ▁Category : R ail way ▁lines ▁opened ▁in ▁ 1 9 1 4 ▁Category : 1 0 6 7 ▁mm ▁gauge ▁rail ways ▁in ▁Japan <0x0A> </s> ▁The ▁Block house ▁Point ▁Light ▁is ▁a ▁l ighth ouse ▁at ▁Rock y ▁Point , ▁Prince ▁Edward ▁Island , ▁Canada , ▁on ▁the ▁western ▁shore ▁of ▁Char l ott et own ▁Har bour . ▁The ▁present ▁l ighth ouse , ▁constructed ▁in ▁ 1 8 7 6 , ▁replaced ▁older ▁l ighth ouses ▁at ▁the ▁site ▁which ▁are ▁believed