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).
Standardisation of parts report for a front brakes inertia balancer, also known as a bob weight scheme.
| Identifier | ExFiles\Box 85\1\ scan0214 | |
| Date | 26th September 1936 | |
| RR 755B (16ll) 85520 12-8-35 W.H.K. 2x800 COMPLETED 6.10.36. BENTLEY STANDARDISATION of PARTS. Description of Parts: FRONT BRAKES INERTIA BALANCER (BOB WEIGHT SCHEME). Origin: To prevent front Brake dry judders. Report of Experimental Test. This scheme is running satisfactorily on 6-B-IV in France. It has been extensively tested in England on the road, on the Bump Rig, and on the Vibrator rig. It eliminates brake judders. If properly fitted to a car it should also eliminate brake thumps andservo judders. It has so far exhibited no disadvantages. It ran satisfactorily in the Ulster T.T. COST TABLE: MATERIAL £ s. d.{John DeLooze - Company Secretary} | LABOUR £ s. d.{John DeLooze - Company Secretary} | CHARGES £ s. d.{John DeLooze - Company Secretary} | TOTAL £ s. d.{John DeLooze - Company Secretary} Cost of Old Part: 5 4 | 1 7 | 2 4 | 9 3 Cost of New Part: 12 10 | 8 5 | 12 7 | 1 13 10 Nett Increase: | | | 1 4 7 Signature from Cost Dept. that above is correct. G/Rh.{R. Hollingworth} 25.9.36. APPROVALS: INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 5-10-36. | Agreed Sg.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} | 2.10.36. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 1.10.36. | Agreed C. E.{Mr Elliott - Chief Engineer} | 1.10.36. | Agreed E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} | 30.9.36. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 1.10.36. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 1.10.36. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} As early as possible. SFT.{Mr Swift} | 1.10.36. | Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} | 30.9.36. | Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} | 29.6.36. | Agreed Hs.{Lord Ernest Hives - Chair} ADDITIONAL INFO: Date: 26.9.36. X No. 206. Drawing No. N.Sch.4865. using short lever GB.2390. [Circular stamp: 5 OCT 1936 with a clock face design] | ||