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).
List of parts and blueprints for the Wraith III chassis crankcase, bearings, and oil filter.
| Identifier | ExFiles\Box 132\3\ scan0117 | |
| Date | 6th December 1938 | |
| HPS.{Horace Percy Smith - Experimental Factory Mgr} c. Rm.{William Robotham - Chief Engineer} C. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} 616. BY/Ald.{F. Allwood - Experimental Design}5/G.6.12.38. WRAITH III CHASSIS. CRANKCASE AND BEARINGS, SECTION 5000. OIL FILTER, SECTION 5203. Please receive herewith two blueprints of each of the following, with an extra two prints of parts marked @ :- S.CD.1038 Simplified Oil Filter for Sump. Section 5203. Ex.S.1245 Filter Casing. 1 off. Ex.S.1246 Filter Gauge. 1 off. Ex.S.1247 Gauge Stiffener. 1 off. Ex.S.1248 Stiffening Ring. 1 off. Ex.S.1250 Oil Feed Pipe. 1 off. Ex.S.1251 Clip for Feed Pipe. 1 off. @ Ex.S.1258 Flange for Pipe Connection. 1 off. Ex.S.1259 Assembly of Filter. 1 off. SECTION 5000. @ x Ex.S.1252 Pedestal for Feed Pipe Clip. 1 off. Ex.S.1254 Cover Plate for Sump. 1 off. x Ex.S.1255 Joint Washer for Cover Plate. 1 off. Ex.S.1256 Modification to Lower Half Crankcase. @ y Ex.S.1257 " " " The following standard parts are also required :- SECTION 5203. E.85287 Connection for Feed Pipe. 2 off. EW.1787 Joint for Connection. 1 off. KC.161 Set Screw " " 2 off. E.55401 Lock Plate for Connection. 1 off. KB.2953 Lock Washer for Oil Pipe Clip. 1 off. KC.151 Set Screw " " " " 1 off. KB.1758 Rivet for Connection Flange. 4 off. SECTION 5000. KB.350 Stud for Cover Plate. 6 off. x KB.253 Stud for Pedestal. 2 off. x K.9006 Washer " " 2 off. x K.4307 Nut " " 2 off. | ||