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).
Investigation comparing the sideways yoke movement between Bentley III and Packard cars.
| Identifier | ExFiles\Box 127\1\ scan0355 | |
| Date | 9th May 1938 guessed | |
| BENTLEY III & PACKARD YOKE MOVEMENT. The sideways movement of the yokes on the above two cars has been investigated and the following data have been obtained:- The movement of the top bearing of the yokes in the direction of their axes amounted to .117" for the B.III and .085" for the Packard. This was for a load variation of 1200 lbs at the wheel in both cases. The following items show where this movement comes from. from. B.III. Packard. A.{Mr Adams} Yoke piece bending ................... .040" .014" B. Needle bearing end play and diametral clearance ............. .015" .016" B.2. Bending of pivot pin, housing distortion, etc. .................. .012" .005" C. Sideway movement of the yoke as a whole ......................... .029" .026" D.{John DeLooze - Company Secretary} Twisting in neck of lower lever ... .002" .0025" X. & E.{Mr Elliott - Chief Engineer} Fidgeting in joint of lower lever and torque arm. ................... .019 .020 _______ _______ Total = .117 .0835. The accompanying print Fig.1 shows, by means of the letters, more clearly where the movement is coming from. The last item 'X' may need some explanation. The Packard has a pressed steel torque arm, the forward end of | ||