Production test log for Phantom II type dynamo machines with 56 coil armatures, recording output, volts, and brush settings.
| Identifier | ExFiles\Box 60\1\ Scan288 | |
| Date | 14th May 1929 | |
| Top Right Reference: X.7660 Top Center Title: PRODUCTION TEST. Handwritten Subtitle: P II type machines with 56 coil armatures and thinner stampings Type Line: Rolls Royce. E.A.C. DYNAMO 6088 do. (NARROW BRUSH MACHINES OF THE SS. {S. Smith} TYPE) Other stamped/written numbers: x7660, x6073. TABLE DATA HEADERS: Date. | Dynamo number. | (1) Remarks. | (2)(3)(4) Remarks. | (5) Output at 1300 r.p.m. [Amperes. 13.0 to 14.0 | Volts. (18.0 +- 1)] | (6) O.C. Volts at 650 r.p.m. [> 13.6] | (7)(8)(9)(10) Remarks | Brush setting angle. ROW 1: Date: 14-5-29 Dynamo number: XI.15.SSX (1) Remarks: First completely inverted machine produced. Made by Prodtn. for an exhil car. B=9° C=122° OK (2)(3)(4) Remarks: OK (5) Output: 13.8 Amperes | 18.0 Volts (6) O.C. Volts: 13.6 (7-10) Remarks: OK 20 - 59 - 79 Brush setting angle: B = 10°, C = 122.5 ROW 2: Date: 30-5-29 Dynamo number: XI.35.SSX (1) Remarks: Only observations on output and heating made. (2)(3)(4) Remarks: — (5) Output: 13.8 Amperes | 18.0 Volts (6) O.C. Volts: 13.9 (7-10) Remarks: 21.5 - 58.5 - 80 Brush setting angle: C = 121° ROW 3: Date: 9-7-29 Dynamo number: VK.55.SSX (1) Remarks: Only observations on output and heating made. (2)(3)(4) Remarks: — (5) Output: 14.1 Amperes | 18.0 Volts (6) O.C. Volts: 15.4 (7-10) Remarks: 18.5 - 50 - 68.5 Brush setting angle: C = 122° ROW 4: Date: 10-1-30 Dynamo number: XK.35.SS {S. Smith} (1) Remarks: Only observations on output and heating made. (2)(3)(4) Remarks: — (5) Output: 13.7 Amperes | 18.0 Volts (6) O.C. Volts: 13.7 (7-10) Remarks: 17 - 59 - 76 Brush setting angle: C = 121.5° ROW 5: Date: 21-1-30 Dynamo number: AH.35.SS {S. Smith} (1) Remarks: Tested for fault. Brush clearance between negative holder & comm only about .010" (2)(3)(4) Remarks: O.K. (5) Output: 13.0 Amperes | 18.0 Volts (6) O.C. Volts: 13.1 (note: 13.6 volts at 650 rpm) (7-10) Remarks: OK 71° Brush setting angle: C = 122° | ||
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).