Yes, it was in 1930, Crystal Palace v. Hall Green. He described what happened, “In the middle of a match race with Huxley [in the second half], the breather on my crankcase worked loose. I put my left hand down to feel if the oil was coming out. Instead the primary chain whipped off the tops of two fingers. On talking the glove off there were the tops inside! The blood was pumping out, but grabbing my left wrist with the other hand I stopped the flow by pressure and walked across to the ambulance tent, which at the Palace, was situated in the middle of the grass centre. I was soon fixed up.”