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).
Test log sheet recording the operational data of various electrical cutouts under different conditions.
| Identifier | WestWitteringFiles\F\May1921\ Scan61 | |
| Date | 20th May 1921 | |
| OPERATION OF CUTOUTS. Table with columns: Maker, Cutout Type or Number, Condition, Battery disconnected (Operated at Volts, amps), Battery connected (Operated at Volts, Shunt amps), Reverse series amperes, Remarks, Date Tested. Row 1: Maker: Lucas Cutout Type or Number: Special Condition: Cold. Battery disconnected - Volts: 12.4, amps: .05 Battery connected - Volts: 7.1, Shunt amps: .06 Reverse series amperes: 2.0 - .05 - 2.6 Remarks: Before R.R. Adj. Adjustment Date Tested: 12.5.21 Row 2: Maker: Smith Cutout Type or Number: Eureka + copper Condition: Hot Battery disconnected - Volts: 15.0, amps: .11 Battery connected - Volts: 8.5, Shunt amps: .06 Reverse series amperes: 13.1 - .10 - 2.5 Remarks: Before R.R. Adj. Adjustment Date Tested: 12.5.21 Row 3: Maker: Smith Cutout Type or Number: 7914 Condition: Cold Battery disconnected - Volts: 13.2, amps: .055 Battery connected - Volts: 7.8, Shunt amps: .03 Reverse series amperes: 12.2 - .045 - .5 Remarks: Before R.R. Adj. Adjustment Date Tested: 12.5.21 Row 4: Maker: Smith Cutout Type or Number: copper only Condition: Hot Battery disconnected - Volts: 14.1, amps: .05 Battery connected - Volts: 8.6, Shunt amps: .03 Reverse series amperes: 12.7 - .045 - .5 Remarks: Before R.R. Adj. Adjustment Date Tested: 12.5.21 Row 5: Maker: Smith Cutout Type or Number: 11846 Condition: Cold Battery disconnected - Volts: 13.0, amps: .085 Battery connected - Volts: 8.7, Shunt amps: .055 Reverse series amperes: 12.3 - .08 - 1.0 Remarks: Before R.R. Adj. Adjustment Date Tested: 12.5.21 Row 6: Maker: Smith Cutout Type or Number: Copper only Condition: Hot Battery disconnected - Volts: 15.0, amps: .08 Battery connected - Volts: 9.4, Shunt amps: .05 Reverse series amperes: 12.2 - .08 - .7 Remarks: Before R.R. Adj. Adjustment Date Tested: 12.5.21 Row 7: Maker: Smith Cutout Type or Number: 11846 Condition: Cold Battery disconnected - Volts: 12.25, amps: .085 Battery connected - Volts: 8.0, Shunt amps: .055 Reverse series amperes: 12.1 - .085 - 1.1 Remarks: After R.R. Adj. Adjustment Date Tested: 20.5.21 Row 8: Maker: Smith Cutout Type or Number: Eureka + copper Condition: Hot Battery disconnected - Volts: 13.7, amps: .085 Battery connected - Volts: 8.8, Shunt amps: .055 Reverse series amperes: 12.4 - .08 - 1.1 Remarks: After R.R. Adj. Adjustment Date Tested: 20.5.21 Row 9: Maker: Smith Cutout Type or Number: 7914 Condition: Cold Battery disconnected - Volts: 12.4, amps: .06 Battery connected - Volts: 7.3, Shunt amps: .035 Reverse series amperes: 12.1 - .035 - .5 Remarks: After R.R. Adj. Adjustment Date Tested: 20.5.21 Row 10: Maker: Smith Cutout Type or Number: copper Condition: Hot Battery disconnected - Volts: 13.3, amps: .06 Battery connected - Volts: 7.3, Shunt amps: .035 Reverse series amperes: 12.6 - .055 - .6 Remarks: After R.R. Adj. Adjustment Date Tested: 20.5.21 Row 11: Maker: C.A.V. Cutout Type or Number: D Condition: Cold Battery disconnected - Volts: 13.4, amps: .17 Battery connected - Volts: 12.2, Shunt amps: .16 Reverse series amperes: 12.4 - .16 - .6 Remarks: Before R.R. Adj. Adjustment Date Tested: 20.4.20 Row 12: Maker: C.A.V. Cutout Type or Number: D Condition: Hot Battery disconnected - Volts: 16.0, amps: .17 Battery connected - Volts: 15.0, Shunt amps: .16 Reverse series amperes: 14.1 - .15 - 1.9 Remarks: Before R.R. Adj. Adjustment Date Tested: 20.4.20 Row 13: Maker: C.A.V. Cutout Type or Number: D Condition: Cold Battery disconnected - Volts: 12.4, amps: .155 Battery connected - Volts: 11.1, Shunt amps: .14 Reverse series amperes: 12.1 - .15 - 1.7 Remarks: After R.R. Adj. Adjustment Date Tested: 20.4.20 Row 14: Maker: C.A.V. Cutout Type or Number: D Condition: Hot Battery disconnected - Volts: 14.4, amps: .15 Battery connected - Volts: 13.5, Shunt amps: .145 Reverse series amperes: 13.4 - .145 - .8 Remarks: After R.R. Adj. Adjustment Date Tested: 20.4.20 Footer Text: R R C 03420 J1 (2) T.L. Ptd. C2-18 C 3428 26.4.21. | ||