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).
Quotation from Peto & Radford Co. for large battery cells for the experimental electrical laboratory.
| Identifier | ExFiles\Box 61\1\ scan0015 | |
| Date | 16th January 1924 | |
| To Hy.{Tom Haldenby - Plant Engineer} from EFC. EFC2/T16.1.24. X.2065 - RE LARGE CELLS FOR EXPL.ELEC.LAB. With reference to the eight large cells required as our new reservoir battery, please note the following extract from a letter received from Mr. Minchin of the Peto & Radford Co., dated 15th January, ref. M/C.151:- "With reference to your request for "particulars for your large battery in your "laboratory, we have submitted details of "this to our Works who suggest that you do "not have a motor car type of cell at all, but "one of our F.A. type cells, which is a Plante "positive and box grid negative type of element. "It would be in a glass box, open, and it is "suggested that "Blancol" should be poured on "the surface of the acid. "The F.A.9 type of cell has a capacity of "200 ampere-hours at the 10 hour rate, and the "F.A.11, 250. "Our price for the F.A.9. is £3.1.4. per "cell, and for the F.A.11. £3.15.6. "We should suggest the latter but if you do "not wish to spend so much on it, the former "would no doubt do." "The life of these cells ought to be very "long." Handwritten text: X. 2065 8 x £3 " 15 " 6 EFC £30 " 4 " 0 | ||