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).
Design modifications for the connecting rods on a 40/50 HP chassis.
| Identifier | WestWitteringFiles\C\March1919\ Scan2 | |
| Date | 6th March 1919 | |
| To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} Copy to EFC. 3 ORIGINAL 6th March, 1919. E2/G6319. [STAMP: 7 MAR 1919] X.3400 RE CONNECTING RODS - 40/50 H.P. CHASSIS. [STAMP: RECEIVED] In reply to your memo BY16/T28219, would you kindly note the following points in connection with scheme No.357:- (1) The lightening hole in the connecting rod bolt should have a nice cigar shaped finish at the bottom, instead of the sharp shouldered drill hole shewn - [DIAGRAM of a cigar-shaped hole] (2) Three oil pipe clips should be used, one about 1.80" from the centre of the small end for steadying the joint made by the oil pipe, and the middle one about 5.9 from the back end, and the remaining one about 3.2" from the big end. It is considered that the oil pipe joint at the big end does not merit so much attention as there is a fair thickness of metal for securing the pipe. The function of the two lower clips is therefore to carry the inertia load due to the weight of the pipe itself moving about. Would you please incorporate these two points in the rod and proceed. It will be unnecessary to send a further blue print. E.{Mr Elliott - Chief Engineer} | ||