March 3, 1959 C. W. CALKINS 2,875,959 TILTED AXIS MULLER- Filed May 10, 1957 _jO '--: 0 75 51 0 ..Ji .34 33 50 - '14 GI 25 INVENTOR. ,?4 .23 CJ..t,q£ LES· J1( C;t:;LKINS BY ~ -d:I,~