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).
Progress report on the manufacture of trial laminated road springs for the 'Goshawk 11'.
| Identifier | ExFiles\Box 52\2\ Scan010 | |
| Date | 8th November 1921 | |
| Hs. {Lord Ernest Hives - Chair} from Wd. {Mr Wood / Mr Whitehead} c. to Wor. {Arthur Wormald - General Works Manager} c. to By. {R.W. Bailey - Chief Engineer} c. to EP. {G. Eric Platford - Chief Quality Engineer} c. to Hy. {Tom Haldenby - Plant Engineer} c. to Roy. {Sir Henry Royce} c. to Ms. [Stamp: RECEIVED NOV 1921] X4629 Wd {Mr Wood / Mr Whitehead} 2/NJ8.11.21. X4629 "Goshawk 11" - Laminated Road Springs. Mine Wd {Mr Wood / Mr Whitehead} 1/NJ4.11.21 Following receipt of Mr. Hives' note, Hs {Lord Ernest Hives - Chair} 3/LG5.11.21, and the conversations I had with Wor. {Arthur Wormald - General Works Manager} on the 5th inst. and By. {R.W. Bailey - Chief Engineer} on the 7th inst., I went to Thos. Firth & Sons Ltd. this morning to ascertain exactly what progress they have made towards the production of the trial sets of springs for "Goshawk 11" which they have in hand. It is necessary first of all to correct the statement in mine Wd {Mr Wood / Mr Whitehead} 1/NJ4.11.21 that Firths are manufacturing three sets of springs to prints F.50595 and F.50596, each set to be of a different class of steel. They are actually manufacturing six sets of springs to the prints mentioned, three sets of Chrome Vanadium Spring Steel and three sets of Silico Manganese Steel. These will be supplied to us free of cost for testing purposes. The position today is that Firths have rolled and ground sufficient Chrome Vanadium Spring Steel and Silico Manganese Spring Steel to manufacture the six sets of springs. Each set of each class of steel will be produced of a slightly different hardness. So far as the remaining operations for the manufacture of the springs are concerned, the position is as follows:- Firths have had cast and will finish machining on Thursday night, 10th inst. three hardening dies for 30", 31" and 32" radii respectively. These will be tested on Friday, 11th inst. If the leaves hardened on these dies are in every way satisfactory and free from distortion, Firths will immediately order all the remaining dies required to manufacture the six complete sets of springs. The total number of dies required is 21 for springs to the prints above-mentioned. So far as the dies for forging the solid eye are concerned, these have been completed and trial main plates (top leaves) have been forged. The dies for the clips have been made and trial clips forged. I have brought three sample clips with me and same are sent herewith to By. {R.W. Bailey - Chief Engineer} The dies for the rolled eyes are in course of manufacture and should be completed in about 7 to 10 days. (contd) | ||