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).
Series of four graphs plotting the percentage efficiency of a Bowden cable against angle in degrees, tested at four different loads.
| Identifier | ExFiles\Box 92\4\ scan0043 | |
| Date | 21th December 1934 guessed | |
| 1444 PERCENTAGE EFFICIENCY 500 LBS. 300 LBS. DEGREES PERCENTAGE EFFICIENCY 50 LBS. 25 LBS. BOWDEN CABLE GRAPHS OF EFFICIENCY AGAINST ANGLE AT VARIOUS LOADS ANGLE - DEGREES. | ||