From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph charting the average coefficient of friction and temperature of Ferodo bonded asbestos lining over one hour.
Identifier | ExFiles\Box 32\2\ Scan075 | |
Date | 8th May 1925 guessed | |
AVERAGE CO-EFFICIENT OF FRICTION OF FERODO BONDED ASBESTOS LINING. SPEED & WORK CONSTANT WITH THE TEMPERATURE RISE FROM 70° TO 525° FAH. IN ONE HOUR. Left Y-Axis: VALUE OF μ. Right Y-Axis: DEGS. FAHR. Bottom X-Axis: TIME MINS. Line Labels: TEMPERATURE F° VALUE OF μ Test Parameters: PERIPHERAL SPEED OF DRUM 1000 FT / MIN. WORK DONE. 1 H.P. HOUR PER SQ. IN. LINING. Handwritten text (bottom center): F/Ches/7 Handwritten text (bottom right): 169 | ||