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).
Blueprint drawing for a Spring - Harmonic Balancer.
| Identifier | ExFiles\Box 125\1\ scan0311 | |
| Date | 12th June 1930 | |
| REQUISITIONED PRINT ROCKWELL C-44 TO C-48 TEST 100%. REFER TO HEAT TREAT SPECIFICATION No. 24 FLOW LINES OF METAL TO BE PARALLEL TO LONG DIMENSION OF SPRING. NOTICE DECIMAL DIMENSIONS MUST BE MAINTAINED. .010 EACH WAY CAN BE ALLOWED ON DIMENSIONS NOT OTHERWISE SPECIFIED. FORM 2070 Dimensions: A 1.417 1.422 .754 .756 .0265 .0275 CHANGE RECORD DATE: 10-8-30, MARK: A, CHANGE RECORD: WAS 1.420-1.425, ORDER NO.: G54359 DATE: 6-12-30, MARK: , CHANGE RECORD: FOR PREVIOUS CHANGES REFER TO OLD DRAWING DATE: 6-12-30, MARK: , CHANGE RECORD: TRACED-NO CHANGES CADILLAC MOTOR CAR Co. DETROIT, MICH. PART NAME: SPRING - HARMONIC BALANCER MATERIAL: CAD. #1080 STEEL DR: STEWART TR{Capt. F. W. Turner - Finance}: FISH CH. D'rs{Sir Henry Royce's Secretary} O.K. ENG'S O.K. CK{Mr Clark}: WHEELER CK{Mr Clark}: (Tunis) DATE: 6-12-30 | ||