Parts list for a simplified oil filter modification on a Wraith III chassis, requesting a cost comparison against the replaced parts.
| Identifier | ExFiles\Box 132\3\ scan0115 | |
| Date | 30th November 1938 | |
| 616. c. Rm. {William Robotham - Chief Engineer} c. Rm {William Robotham - Chief Engineer} /Southall. BY {R.W. Bailey - Chief Engineer} /Ald. {F. Allwood - Experimental Design} 1/G.30.11.38. WRAITH 111 CHASSIS. CRANKCASE AND BEARINGS. SECTION 5000. OIL FILTER. SECTION 5203. Please receive herewith one blueprint of each of the following :- S.CD.1038 Simplified Oil Filter for Sump. SECTION 5203. EX.S.1245 Filter Casing. 1 off. EX.S.1246 Filter Gauze. 1 off. EX.S.1247 Gauze 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. EX.S.1254 Cover Plate for Sump. 1 off. EX.S.1255 Joint Washer. 1 off. EX.S.1257 Modification to Lower Half Crankcase. The following standard parts are also required :- SECTION 5203. E.85287 Connection for Oil Feed Pipe. 2 off. EW.1787 Joint for Connection. 1 off. KC.161 Set Screw " ". 2 off. E.55401 Lock Plate " ". 1 off. KC.153 Set Screw for Oil Pipe Clip. 1 off. KB.5953 Lock Washer " ". 1 off. KB.1758 Rivet for Connection Flange. 4 off. SECTION 5000. KB.350 Stud for Sump Cover Plate. 6 off. Will you please give us a cost for the above parts, as compared with the following parts which this scheme replaces :- SECTION 5203. All Parts contained in LOP. EW.1417. SECTION 5000. E.51559 Stud for Oil Filter Cover. 6 off. | ||
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).