Bashforth 1845 Kelvin's analyser
Russell 1869
Roberts 1873a Kelvin 1872
Roberts 1873b press Kelvin 1873
Roberts 1879 Kelvin 1881 press
Ferrel 1883 press Inglis 1897 Kelvin, Bottomley & Baird
Roberts 1906 Harris/Fischer 1910 press Inglis 1918 Brazil 1910 press
Rauschelbach 1915 press KBB 7 machines press
Rauschelbach 1938 press
E German 1955 press LTI 3 machines 1943-1948
Doodson/Lege 5 machines 1948-1953 press
BRITISH GERMAN AMERICAN AUSTRALIAN