▁completed ▁and ▁then ▁sold ▁to ▁contract ors ▁in ▁ 1 8 4 3 ▁and ▁ 1 8 4 6 . ▁ ▁February ▁ 1 8 4 9 : ▁Cy clo ps '' ▁failed ▁to ▁stop ▁when ▁entering ▁, ▁resulting ▁in ▁a ▁collision . ▁The ▁tank ▁locomot ives ▁had ▁no ▁bra kes ▁at ▁that ▁time , ▁but ▁re lied ▁on ▁a ▁combination ▁of ▁the ▁guard ▁applying ▁the ▁bra ke ▁in ▁a ▁third ▁class ▁carriage ▁and ▁the ▁locomot ive ▁driver ▁using ▁his ▁revers ing ▁g ear . ▁T ank ▁locomot ives ▁subsequently ▁had ▁bra kes ▁fitted . ▁ ▁August ▁ 1 8 5 3 : ▁on ▁the ▁Dal key ▁At mos pher ic ▁section , ▁a ▁boy ▁lean ed ▁out ▁to ▁see ▁a ▁bal lo on ▁from ▁a ▁third ▁class ▁carriage ▁with ▁wa ist - high ▁sides ▁and ▁open ▁windows . ▁He ▁stuck ▁his ▁head ▁on ▁a ▁bridge ▁and ▁was ▁killed . ▁ ▁Gallery ▁ ▁See ▁also ▁▁ ▁History ▁of ▁rail ▁transport ▁in ▁Ireland ▁ ▁Track ▁gauge ▁in ▁Ireland ▁ ▁Tim eline ▁of ▁railway ▁history ▁ ▁Notes ▁references ▁and ▁sources ▁ ▁Notes ▁ ▁References ▁ ▁S ources ▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁( 1 ▁& ▁ 2 ▁W m . ▁IV , ▁Cap . ▁ 6 9 ) ▁ ▁Further ▁reading ▁ ▁External ▁links ▁▁ ▁The ▁Ne igh bour hood ▁of ▁Dublin : ▁The ▁History ▁of ▁the ▁Dublin ▁and ▁King st own ▁Railway ▁ ▁Category : Transport ▁in ▁County ▁Dublin ▁Category : D ún ▁La og ha ire ▁Category : R ail way ▁lines ▁opened ▁in ▁ 1 8