Blueprint and part changes for the Servo Motor Mechanism on Bentley B.50 and B.60 chassis.
| Identifier | ExFiles\Box 152\2\ scan0231 | |
| Date | 3rd October 1938 | |
| 129/H BY {R.W. Bailey - Chief Engineer} /Ald. {F. Allwood - Experimental Design} 4/G.3.10.38. c. Rm. {William Robotham - Chief Engineer} c. Rm {William Robotham - Chief Engineer} /JBD. {John B. Dixon - Fuel Systems} BENTLEY 111, B.50 and B.60 CHASSIS. SERVO MOTOR MECHANISM - SECTION 6180. Please receive herewith two blueprints of the following :- Ex.S.1063 Ball Cage for Pressure Plate - 1 off. The number off the following is increased from 16 to 23 :- .1875 dia. Balls - Pressure Plate. The following part is not required :- GB.3898 Ball Cage - 1 off. The above is as requested by memo Rm {William Robotham - Chief Engineer} /JBD. {John B. Dixon - Fuel Systems} 2/ JH.29.9.38. with the balls arranged in a spiral, so that they form a difficult line of contact on the shaft, to eliminate grooving on the shaft. Kindly produce 3 sets. Ald {F. Allwood - Experimental Design} BY {R.W. Bailey - Chief Engineer} /Ald. {F. Allwood - Experimental Design} | ||
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).