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).
Procurement and modification of .500' Barrel Drilling Machines.
| Identifier | ExFiles\Box 176\3\ img161 | |
| Date | 21th September 1940 | |
| To Rm.{William Robotham - Chief Engineer} from HPS{Horace Percy Smith - Experimental Factory Mgr}/Cy. HPS{Horace Percy Smith - Experimental Factory Mgr}/Cy.1/JW. 21.9.40. 2V .500" BARREL DRILLING MACHINES. I am returning your folder of information in respect of "Builders" equipment as I already have particulars and delivery dates of these machines from A.Herberts. Herbert's could deliver as many machines as we should require for 1,000 Barrels per week, by January, 1941. Certain modifications would be required to give the most satisfactory speeds and feeds for our barrels as the particulars of the Builders machines do not agree with B.S.A. practice, and should any machines be ordered the modifications should be incorporated before delivery. We have all the necessary information, should it be required. We have modified the Pratt & Whitney No.1.B machine at Glasgow. [Handwritten note]: folder in filing cabinet HPS{Horace Percy Smith - Experimental Factory Mgr}/Cy. [Signature] | ||