▁Ele ven ▁smaller ▁examples ▁were ▁built ▁in ▁ 1 8 5 4 ▁with ▁ ▁driving ▁whe els ▁intended ▁for ▁secondary ▁fast ▁main - line ▁trains ▁and ▁branch ▁lines ▁of ▁the ▁Southern ▁Division . ▁These ▁engines ▁were ▁originally ▁intended ▁by ▁Mc Con nell ▁to ▁be ▁a ▁ 7   ft - w heel ▁variant ▁of ▁his ▁Pat ent ▁class , ▁but ▁the ▁design ▁was ▁alter ed ▁by ▁order ▁of ▁the ▁direct ors ▁to ▁a ▁smaller ▁version ▁of ▁the ▁successful ▁Blo om ers . ▁Like ▁them , ▁the ▁design ▁was ▁closely ▁based ▁on ▁the ▁B ury , ▁Curt is ▁& ▁Kennedy ▁ 6   ft ▁single ▁of ▁ 1 8 4 8 ; ▁Mc Con nell ▁called ▁the ▁Small ▁Blo omer ▁design ▁' B ury ' s ▁Im pro ved '. ▁ ▁Seven ▁were ▁built ▁by ▁R ▁and ▁W ▁Haw th orn ▁and ▁four ▁by ▁V ul can ▁Found ry . ▁A ▁further ▁twenty ▁of ▁this ▁design ▁were ▁built ▁at ▁Wol ver ton ▁Works ▁between ▁ 1 8 5 7 ▁and ▁ 1 8 6 1 . ▁ ▁Num bers ▁originally ▁carried ▁were ▁an ▁ass ort ment ▁from ▁ 2 ▁to ▁ 3 8 1 , ▁ren umber ed ▁ 6 0 2 ▁( etc .) ▁up ▁to ▁ 9 8 1 ▁in ▁ 1 8 6 2 . ▁ ▁Two ▁were ▁with dra wn ▁in ▁ 1 8 6 6 ▁but ▁the ▁others ▁were ▁re built ▁between ▁ 1 8 6 8 ▁and ▁ 1 8 7 6 ; ▁the ▁last ▁one ▁was ▁scra