Abstract

Further measurements of the coefficients of friction for leathers and rubber soling materials sliding on metal surfaces confirm previous findings. If the metal is replaced with concrete, wood, or linoleum, the coefficients of friction remain dependent on load and decrease quickly as the load increases. On concrete, wood, and linoleum, the coefficients of friction for rubbers in the presence of oil are not much lower than those for leathers in oil. On oily wood, concrete, and linoleum, leather soles are likely to be about as slippery as rubber ones.