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).
Use of laminated shim metal for liners in crankshaft bearings and connecting rods.
| Identifier | WestWitteringFiles\B\January1918\ Scan2 | |
| Date | 7th January 1918 | |
| To from R.{Sir Henry Royce} c. to EH. c. to DJ. 24 R12/W7.1.18. ORIGINAL X.2539. Re - Laminated Shim Metal for Liners. (Shims). X 3246. Regarding the sample sent to us by Rothermel, I see no reason why liners made from this laminated metal should not serve our purpose extremely well in the case of crankshaft bearings, and since we use rather a thick liner it would appear that only part of the liner might be lamina, as much as is used for adjustment. Whether we sweat this together or not the Works will decide but it would appear quite an easy matter to press the lamina on to a piece of metal like an existing liner in our own works. It might facilitate production. It would be necessary to put between the lamina and our liner a piece of tin foil and a quantity of flux or fluxite then press them together with moderate pressure and sufficient heat for soft soldering. A girl could do such an operation and the plates for soldering could be kept hot by some means such as a hydrogen air blow pipe. This is a matter that Mr. Hives and the Experimental Dept. could well take up and let us have a report. With reference to using similar material for connecting rods, you will remember that we adopted steel liners(which can be held on magnetic chucks and ground) because these can be as hard as the surface of the rod and therefore perhaps more stable than brass. Experimentally, this might be demonstrated to [word obscured by stamp] whether this is a necessary precaution or otherwise. [Stamp]: RECEIVED 12 JUN 1918 | ||