Coleman, William Francis, Rugg, Daniel Maltby · leaf 18
and sheaves.They are figured from the equation s = !^ D where E = 12,000,000 for plow steel rope. 8. About 1890 Andrew S. Biggart conducted a series of testson the wear of ropes bent over sheaves. He tried various makesand types of ropes of one and three quarters inch circiimferencearound sheaves… … -6- II. lyiETHOD OP TESTING. 9. GENERAL DESCRIPTION. The tests were made in theLaboratorv of Applied Mechanics of the University of Illinoisby the author^ as a thesis investigation under the directsupervision of Professor Herbert P. Moore. They consisted ofstatic bending stress tests of three sizes…