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).
Instruction sheet detailing the parts required to produce a modified experimental Condenser for the 40/50 Chassis.
| Identifier | ExFiles\Box 45\3\ Scan027 | |
| Date | 2nd February 1921 | |
| H.H. & Co. (100 T) S.H. 705. 10-12-20 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2947 To AMCo. C. to EFC. Da.{Bernard Day - Chassis Design} BY/EHT. EXPERIMENTAL X 4054 BY/WER5/EF16. 2. 2. 21. RECEIVED FEB 10 X 4054. CONDENSER. 40/50 CHASSIS - SECTION 7370. In accordance with "N" Scheme 746 we are instructing the necessary details to enable you to produce several of the modified Condensers in order that the new scheme may be tried out. Please receive herewith two blue prints of each of the following new details:- Piece No. Title. Material. No.Off. D.1674 Terminal Stud. D/M 216. 1 off. D.1675 Casing Insulation. Micanite 1 off. D.1676 Clamping Plate. B 215. 1 off. D.1677 -do- -do- 1 off. D.1679 -do- -do- 1 off. D.1680 Condenser Plate. Tinfoil 155 off. D.1681 Condenser Insulation Mica. 158 off. To complete the Condenser the following parts taken from a standard Condenser will also be required. F.7371 Condenser Securing Piece B 215. 1 off. F.7372 Contact Spring BZ/51 1 off. F.7373 Distance Washer. S/DS 202 1 off. F.7374 Terminal Stud. D/M 216 1 off. F.7375 Stud for Spring B 215 1 off. F.7380 Lock Nut for F.7375. S/M 201B 1 off. F.7386 Taper Pin S/M 201B 1 off. F.7939 Countersunk Head Screw B 215 4 off. D.1402 Nut. B 215. 1 off. The last detail is not a standard part. Standard Thackeray Washer K.3803 2 B.A. Used on Terminals S/S 2 off. Standard Lock Nut. K.4308 2 B.A. Used on Terminals Brass. 2 off. If the new details are compared with those which they supersede on the standard Condenser (See L.O.P. F.7938) it will be found that several of the standard parts can be modified to suit the new details. The Earthed Connection to the Frame is the same as | ||