? ??????? ???????? ????? ??? ????? ?????? ???????, ??? ??????? ??? ???? ?? ????? ??????? ?? ???????? ??????? ?? ??????????:??? ???? ???????? ?????? ????????? ????????? ?????? ???????????? ? ??????????? ?? ???? ?????? ? ???????????? ????????.[5] The actually transportable engine was invented in 1839 by William Tuxford of Boston, Lincolnshire who com