Rolls-Royce Archives
| Identifier | Entry | ||
| 01-page01 | Log sheet for brake tests conducted on experimental vehicle 25-EX, detailing settings and performance over multiple days. | ||
| View original record | (1) 87360 BRAKE TESTS. 8.1.32. 25-EX. Foot Pedal 4 3/8". Front Toggles. O.S. 1 1/4" N.S. 1 1/8". Rear Arms. O.S. 1" N.S. 1 3/8". Cold. 55 miles light running. 65 miles light running. 9.1.32. 11.1.32.… | ||
| 01-page02 | Brake and foot pedal adjustments, with before and after measurements, and noting a noise. | ||
| View original record | 12.1.32. Foot Pedal 3 1/4". Front toggles O.S. 1 1/2" N.S.1 1/2" Rear Arms. O.S. 2 3/4" N.S. 2 1/4" Brakes adjusted. Rear foot brake taken up two notches each side. Front toggles taken up 2 notches… | ||
| 01-page03 | Brake test results for chassis 25-EX, detailing setup, stopping distances, and mileage over several days. | ||
| View original record | H/S BRAKE TESTS. 25-EX. 21. 1. 32. Chassis received from fitters. Milleniun. Cast. Iron Ribbed Drums. Fitted front and back. Servo Cams. 35º Foot Pedal 5¼" Front Toggles OS ⅞ NS ⅞" Rear Arms. OS ⅝ NS… | ||
| 01-page04 | Automatic brake adjustment for an epicyclic 3rd speed gearbox, suggesting a material change from cotton duck to Ferodo. | ||
| View original record | HS. ) FROM DA. BY. } E. ) X7360 DA1/13.1.32. X. 7310 X. 7360 C. to SG. WOR. EPICYCLIC 3rd. SPEED GEARBOX. AUTOMATIC BRAKE ADJUSTMENT. The cotton duck appears to be upsetting the operation of this… | ||
| 01-page05 | The wear of different brake lining materials in a P.2 gearbox with an epicyclic third gear. | ||
| View original record | COPY. To R. From Hs. c. to Sg. Wor. c. to E. Da. c. to By. x7360 Hs.6/MJ.19.1.32. K7310 P.2 GEARBOX WITH EPICYCLIC THIRD. When the gearbox was dismantled after the last run, we reported rapid wear on… | ||
| 01-page06 | Modifications and suggestions for the Epicyclic 3rd Speed Box. | ||
| View original record | HS. } FROM DA. BY. } x7360 DA1/M29.1.32. Copy to - E. EPICYCLIC 3rd. SPEED BOX. X.7310 X.7360 One of the suggestions is to increase the force of the spring working the ratchet. We understand that you… | ||
| 01-page07 | Technical memo about creating an inspection hole for the brake lever and a scheme for a gear pre-selection valve. | ||
| View original record | (2) more clearance to the end of the connecting rod attached to the brake lever, and this could be done by cutting an inspection hole in the casing immediately opposite the end of the brake lever. It… | ||
| 01-page08 | Design of a hydraulic control system for an epicyclic change gear with friction brakes. | ||
| View original record | HS. ) FROM R. DA/HDY. (At Le Canadel.) R2/M24.2.32. Sent from WW. 26.2.32. K.7310 K.7360 X7360 C. to SG. WOR. RG. C. to By. E. C. to Mr. CLAREMONT. CHANGE GEAR. EPICYCLIC WITH FRICTION BRAKES. I think… | ||
| 01-page09 | Merits and drawbacks of synchromesh versus epicyclic gear systems. | ||
| View original record | HS. DA/HDY. } FROM R. (At Le Canadel). K7360 R1/M24.2.32. Sent from WW. 25.2.32 C. to SG. MOR. BY. C. to RG. E. C. to Mr. CLAREMONT. CHANGE GEAR. X.7310 X.7360 I thank HS. for his memo. on the above.… | ||
| 01-page10 | Discussion of various schemes for gearboxes, brakes, and control systems, including epicyclic gears and fluid flywheels. | ||
| View original record | (2) Amongst many scheme in mind, two or three items seem of value: (1) That the brakes in an epicyclic gearbox shall be arranged to be self servoing in one direction so that the braking is ample to… | ||
| 01-page11 | Effectiveness of front-wheel braking and comparing performance with Talbot cars. | ||
| View original record | x7360 RECEIVED PN.2/WT2.3.32. S/W. Hs...from PN. Copy to [REDACTED] Rolls-Royce Brakes. Referring to the attached Bt.1/PH.2.3.32 I do not know whether any of you has had recent experience with the… | ||
| 01-page12 | Criticisms of the braking proportions and performance compared to other cars like Talbot. | ||
| View original record | Copy. 87360. Bt.1/PH2.3.32. To PN. Rolls-Royce Brakes. I have had criticisms lately from users of our cars as to the braking. It is not suggested that our brakes are functioning less efficiently than… | ||
| 01-page13 | Brake performance, front wheel braking proportions, and comparisons with other cars. | ||
| View original record | PN. From Hs/Gry. c. to Sg. c. to Bt. Hs/Gry.7/MA.4. 3. 32. ROLLS ROYCE BRAKES. Replying to your Pn.2/TT.2.3.32, we are of the opinion that the proportion of braking on the front wheels of our cars is… | ||
| 01-page14 | Rear brake shoe material for the 20/25 model, addressing rubbing issues and proposing pressed steel shoes. | ||
| View original record | R. From Hs/Rm. c. to Sg. Wor. c. to By. E. c. to Da. Hdy. c. to Mx. c. to EP x5360 Hs/Rm.2/MJ.29.7.32. rubins x5360 x5360 BRAKE STRAP MATERIAL. We have known for some time that if the 20/25 was driven… | ||
| 01-page15 | Comparative test report on 25 HP brakes, comparing cast iron and aluminium brake straps following complaints of seizing. | ||
| View original record | Hs/Rm. From F.Dodd. Hs/Rm.FD.21.7.32. 25 HP. BRAKES. Owing to a number of complaints of rear brakes seizing up due to fast driving and very frequent application of the brakes, we have carried out some… | ||
| 01-page16 | Brake testing, comparing aluminum and cast iron straps and different drum types. | ||
| View original record | -2- Hs/Rm.FD.21.7.32. Cont'd. We found that the brakes were rubbing with the alum, straps after we had completed 45 brakes, whereas with the cast iron ones they were well clear. The reason for the… | ||
| 01-page17 | Graph comparing the loss of pedal movement due to brake shoe heating for standard aluminum versus cast iron shoes on a 20/25 model. | ||
| View original record | LOSS OF BRAKE CLCE DUE TO HEATING OF BRAKE SHOES REAR BRAKES 20/25- STD ALUMINUM SHOES CAST IRON SHOES LOSS OF PEDAL MOVT INS NO OF BRAKE APPLICATIONS AT INTERVALS REDUCING CAR SPEED FROM 50-20 M.P.H. | ||
| 01-page18 | Standardisation document for Lake & Elliott cast iron drums. | ||
| View original record | RR 755 (10H) (19120, 13-10-31) B.M. 3/7566. COMPLETED 24.9.32. X / 360. STANDARDISATION of CHASSIS PARTS. Date 9.6.32. X No. 7360 Drawing No. 4612 Part List Description of Parts. LAKE & ELLIOTT CAST… | ||
| 01-page19 | Form for the standardization of chassis parts, detailing implementation and costs. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS The number of the first chassis on which the new part will be fitted......... 'O' Series. Date when chassis will be handed to test..... Cost of scrapped material, if… | ||
| 01-page20 | Solution for 'brake thumps' by coupling the brakes together. | ||
| View original record | HS.) FROM R. DA.) E. } X7360 R.6/M14.9.32. C. to SG. WOR. BY. BRAKE THUMPS. X.7360. X.5380. It has occurred to many of us that to couple the brakes up altogether instead of letting the foot pressure… | ||
| 01-page21 | Issues with front brake drums after 16,000 miles, including scoring and alternative fixing methods. | ||
| View original record | 87360 R. From Hs/Rn. c. Sg. Hor. c. E. Da. c. By. Hs/Rn.E/KT.28.9.32. x4612 P.II. BRAKES. We are sending you a pair of front brake drums that have done 16,000 miles on Mr.Horlick's car. They… | ||
| 01-page22 | On testing the efficiency of Phantom Brakes and their equalizing shafts. | ||
| View original record | FILE X7360. Hs/Rn. from GWH. 12.10.32. Re. Phantom Brakes. We have tried the efficiency of the brakes by letting out the adjustment at one side and tightening up the other side, with a view of… | ||
| 01-page23 | Load and pressure particulars for the 'Phantom' model braking system. | ||
| View original record | Hs/Rm. from GWH. X7360. 14.10.32. 19-EX. PHANTOM BRAKES. We have obtained the following particulars of the braking system. (1) Load required to pull the front brakes on at end of lever on axle. N.S.… | ||
| 01-page24 | The pressure and pull specifications for the Phantom braking system. | ||
| View original record | GRY X7360 HS/Rn. from GWH. 14.10.32. 25-EX. PHANTOM BRAKES. We have obtained the following particulars of the braking system. (1) Pounds pressure required to bring brake shoes in contact with drum.… | ||
| 01-page25 | Notification regarding the modification for increased front braking by lengthening the central lever of the equaliser shaft. | ||
| View original record | X7360 By. from Hs/Rm. Da. Hs/Rm.9/KT.14.10.32. x7420 With regard to the Increased Front Braking standardisation sheet of 3.10.32. This was obtained by lengthening the central lever G.77674 of the… | ||
| 01-page26 | Standardisation of a stronger spring under the auxiliary shoe of rear brakes. | ||
| View original record | RR 758 (10M) (19120. 13-10-31) BM. S/7568. X2360 COMPLETED 14.10.32. STANDARDISATION of CHASSIS PARTS. Date 12.8.32 X No. 7360 Drawing No. G. 80050 Part List Description of Parts. STRONGER SPRING… | ||
| 01-page27 | Standardisation of chassis parts, detailing the test date and costs for a new part. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS The number of the first chassis on which the new part will be fitted.......... O.2 series. Date when chassis will be handed to test.. 15th Oct. 1932. Cost of scrapped… | ||
| 01-page28 | Increasing the braking proportion on the front wheels of the 40/50 and 20/25 models. | ||
| View original record | COPY. X7360. To Hs. From Sg. c. to Wor. Sg.1/D8.11.32. X5360. Re. Braking. You will remember that we have been talking about increasing the proportion of braking on the front wheels for some little… | ||
| 01-page29 | Increase in the percentage of front braking for the 58-GY model. | ||
| View original record | Sg. From Hs/Gry. c. to Wor. Hs/Gry.10/MA.9.11.32. PERCENTAGE OF FRONT BRAKING. Sg.1/D.8.11.32. We have increased the amount of front braking on 58-GY from 34% to 40%. We have sent out a… | ||
| 01-page30 | Comparison of braking units for the J.III & Peregrine models against the 40/50 & 20/25, with proposed modifications. | ||
| View original record | V 7360. For Files. 11.11.32. K5360 x4047 J.III BRAKES & PEREGRINE. Comparing the four Cars on the road we get:- Braking 40/50. 20/25. J.III Peregrine. Units. Direct. 377 377 240 220 Rear & 499 524 525… | ||
| 01-page31 | Typed note regarding brake adjustment for the 20/25 model. | ||
| View original record | -2- The brake adjustment should be made like the 20/25, i.e. infinitely small. HS/Rn. | ||
| 01-page32 | Standardisation of chassis parts to increase the percentage of braking on the front axle from 40% to 45%. | ||
| View original record | RR 755 (10M) (30405. 21-4-32) BM. 3/8382/4. X7360. COMPLETED 21.11.32. STANDARDISATION of CHASSIS PARTS. Description of Parts. INCREASED PERCENTAGE OF BRAKING ON THE FRONT AXLE FROM 40% to 45%.… | ||
| 01-page33 | Standardisation form for chassis parts detailing implementation and associated costs. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS The number of the first chassis on which the new part will be fitted......... 51st.in 'O'. Date when chassis will be handed to test. 19th. Feb.1933 Cost of scrapped… | ||
| 01-page34 | Preference for hydraulic transmission with direct braking over a servo system due to complexity. | ||
| View original record | X 7360 HS. FROM R. R5/M12.12.32. C. to SG. WOR. BY. DA. BRAKES. X. 7360. X. 5360. It seems to me that we must not expect to use hydraulic transmission, and a servo. If we use the former we must be… | ||
| 01-page35 | Design of wider brake drums with steel shoes for the Phantom II model. | ||
| View original record | COPY X7360 BY. From DA. DA.4/M24.12.32. C. to SG. WOR. HS. E. X.7360. X.4612. PHANTOM 2. WIDER BRAKE DRUMS WITH STEEL SHOES. We send herewith N.Sch.3618 shewing the wider brake drums on the front axle… | ||
| 01-page36 | Trial modifications to the Phantom II front sheet steel brake shoes. | ||
| View original record | X7360 GRY To Br. from Da. c. Mr. E. Hs. Da.1/HP.4.8.33. Phantom 2 Sheet Steel Brake Shoes (Front). Herewith is N. Sch. 3799 shewing in the extreme right-hand side a reduced number of rivets for… | ||
| 01-page37 | Customer's request for a second battery and modifications to the front wheel braking system. | ||
| View original record | X7350 R/W. Corr. from PN. Copy to C. By He. E. PH.5/WT25.10.33. Sir Norman Watson. 38-MY. This owner called here to-day and was greatly disappointed to learn that his wish in respect of a second… | ||
| 01-page38 | Application of self-aligning bearings to the rear brake equaliser shafts for the Phantom 10,000 miles car. | ||
| View original record | X7360 GRAY To BY. from Da. Da.l/HP.3.1.34. c. Vor. E. Hs. HDY. RHC. Self Aligning Brake Equaliser Shafts.Phantom 10,000 miles car. Herewith is N. Sch.3933 shewing the application of the self-aligning… | ||
| 01-page39 | Modification to the P.2 brake adjustment to protect the locking teeth. | ||
| View original record | X7360 To Mr. from Da. c. Wer. E. Hs. HUY. WHG. Brake Adjustment - P.2. Herewith is N. Sch.3931 shewing a further modification to the brake adjustment to protect the locking teeth. We have done it for… | ||
| 01-page40 | Modifications to welded sheet steel front brake shoes to allow for the use of bifurcated rivets. | ||
| View original record | X7360 To BY. from Da. c.c. Mr. Hs. RHC. Da.2/HP.19.1.34. Welded Sheet Steel Shoes. P.2. Front Brakes. Herewith is N. Sch. 3955 showing the slight modifications to the Shoes shewn on N. Sch. 3618 to… | ||
| 01-page41 | Infrequent oil leaks on Phantom II front brakes, attributing the cause to bad fitting rather than a design fault. | ||
| View original record | To EP. c. to E. c. to By. c. to Sg. c. to Wor. X7360 Hs/Gry.1/KW.20.1.34. Phantom II Oil Leaks on Front Brakes. EP.16/ML.12.1.34. We notice that the inefficiency of the front brakes on Sg's car was… | ||
| 01-page42 | Oil leaks under the front brakes of a Phantom II, referencing a similar issue on Bentley cars. | ||
| View original record | f. 7360 EP16/AH.12.1.34 re PHANTOM II - OIL LEAKS UNDER FRONT BRAKES -------------------------------------------- With reference to Sg13/E29.12.33, the cause of the oil leaks we have ascertained from… | ||
| 01-page43 | Oil leaks on the front brakes of a Phantom II. | ||
| View original record | Wor. from Sft. o. RP. c. Hs. o. Bys X7360 Sft4/BH.30.1.34. PHANTOM II. OIL LEAKS ON FRONT BRAKES. I return memo' Hs/Gry.1/KW.20.1.34, in regard to this matter. In order to answer the complaint in… | ||
| 01-page44 | Letter to Bowden Engineers Ltd. requesting samples of large inner and outer cables for front brakes. | ||
| View original record | X7360 Exptl. Dept. HS/Les.10/KW. 26th February, 1934. Messrs. Bowden (Engineers) Ltd., Willesden Junction, LONDON, N.W.10. Dear Sirs, We want to fix up inner and outer cable control to the front… | ||
| 01-page45 | Letter to Bowden (Engineers) Ltd. discussing the fitting of their cable system to a car. | ||
| View original record | X 7360 Exptl. Dept. Hs/Les.15/KW. 22nd March, 1934. Messrs. Bowden (Engineers) Ltd., Willesden Junction, LONDON, N.W.10. Dear Sirs, Your Ref. JRN/IT. We thank you for your letter of the 14th instant,… | ||
| 01-page46 | Phantom II easy brake adjustments, specifically the wing nut lift and shoe centre clearances. | ||
| View original record | X 7360 To By. c. to GWH. c. to RHC. Hs/Gry.3/KW.28.3.34. P.II Easy Brake Adjustment. We find that the wing nut brake adjustment on 28-EX sets the brakes at too large a clearance. The .200" lift of the… | ||
| 01-page47 | Letter to Bowden (Engineers) Ltd. providing measurements, returning a print, and enclosing another print for a grease gun nipple. | ||
| View original record | X7360 Exptl. Dept. Hs/Les.3/KW. 11th April, 1934. Messrs. Bowden (Engineers) Ltd., Willesden Junction, LONDON, N.W.10. Dear Sirs, Thank you for your letter dated the 10th inst. We are returning the… | ||
| 01-page48 | Correct wing nut lift specifications for brake adjustments on various chassis models. | ||
| View original record | By. x7360 Hs/Gry.18/KW.4.5.34. Easy Brake Adjustment - N.Sch.3931. We find that the wing nut lift of .200 is not suitable for all chassis. This arises owing to the varying toggle radii and also owing… | ||
| 01-page49 | Technical explanation of the causes of front brake thumping when using a servo system. | ||
| View original record | To Hs X7360 Hs/GWH.19/KW.16.5.34. Front Brake Thumps and the cause thereof. The reason why front brakes thump when using a servo system can be classified into several categories. Firstly with the… | ||
| 01-page50 | Overcoming faults in braking systems and introducing a new servo-assisted scheme EX.13184. | ||
| View original record | -2- Hs/GWH.19/KW.16.5.34. To overcome these various faults, numerous schemes have been tried. To obtain an ideal working condition the servo must upon the lightest load being applied to the foot… | ||
| 01-page51 | Standardisation of brake equaliser shafts with spherical bearings. | ||
| View original record | RR 785 (SH) (52674. 16-10-33) SM. 3/262/6. COMPLETED 18.6.34. 40/50 STANDARDISATION of PARTS. Date 28.5.34. X No. 7360. Drawing No. Part List Description of Parts. BRAKE EQUALISER SHAFTS WITH… | ||
| 01-page52 | Cost estimate and production note for extra jigs, tools and equipment for the 'T' series chassis. | ||
| View original record | STANDARDISATION OF PARTS Est. cost of extra jigs, tools and equipment (Sft/Ws.16.5.34) £162.0.0. Could be brought on to production at 1st chassis in "T" series. (Sft/GH.16.5.34) without scrap. 600 | ||
| 01-page53 | Standardisation of parts for the bifurcated rivetting of brake linings to reduce cost. | ||
| View original record | RR 758 (5H) (S2674. 16-10-33) BM. 3/262/6. COMPLETED 21.6.34. 40/50 STANDARDISATION of PARTS. Description of Parts. BIFURCATED RIVETTING OF BRAKE LININGS. Origin. TO REDUCE COST. Report of… | ||
| 01-page54 | Estimation of costs for extra jigs, tools, and equipment for the 'T' series chassis. | ||
| View original record | STANDARDISATION of PARTS Est. cost of extra jigs, tools and equipment. (Sft/Ws.16.5.34) £6.0.0. Could be brought on to production at 1st chassis in "T" series without scrap. [Stamp] RECEIVED 18 MAY… | ||
| 01-page55 | Standardisation of parts form for an easy brake adjustment. | ||
| View original record | RR 78B (SH) (S2674: 16-10-33) 3M. 3/262/6. COMPLETED 21.6.34. 40/50 STANDARDISATION of PARTS. Date 23.4.34. (Handwritten above: 30.5.34) X No. 7360. Drawing No. Part List Description of Parts: EASY… | ||
| 01-page56 | Cost estimate for extra jigs, tools and equipment for a modification to the 'T' series. | ||
| View original record | STANDARDISATION OF PARTS Est. cost of extra jigs, tools and equipment. (Sft/Ws.23.5.34) £304.0.0. This modification has already been instructed for "T" series. | ||
| 01-page57 | Brake ropes hitting undersheets, causing clatter, and proposing the development of a new rubber covering. | ||
| View original record | V7360 To E. c. to Wor. c. to Hy. c. to Hft. Hs/Rm.19/KW.30.7.34. Brake Ropes Hitting Undersheets. We have recently come across several cases of brake ropes hitting the undersheets of cars. We… | ||
| 01-page58 | Request for braking distance figures for a 40/50 HP chassis following an owner's accident. | ||
| View original record | x7360 N-W. Hs. Brl/H.5.9.34. re Chassis 147 RY - R.Miesegaes Esq. (Managing Director of Dex Garages Ltd.) The above owner, who is a very good friend of ours, was recently involved in an accident, and… | ||
| 01-page59 | Trouble with front brake cams fouling toggles during a 10,000-mile test for the Phantom model. | ||
| View original record | x7360 To Sft. c. to By. Hs/Gry.11/KW.24.9.34. Phantom Easy Brake Adjustment. We have experienced trouble during the 10,000 miles test because of the front brake cams fouling the toggles. The parts in… | ||
| 01-page60 | The Phantom Easy Brake Adjustment, regarding an issue with front brake cams and parts ready for inspection. | ||
| View original record | Rm X7360 Hs. Coy. Sft/JMW.16/MW.16.10.34. Phantom Easy Brake Adjustment. With reference to memo.Hs/Gryll/KW.24.9.34. in regard to the front brake cams fouling the toggles, please note the G80944/5 are… | ||
| 01-page61 | Concerns about wear on a 28-EX rear drum and seeking opinions from Ferodos and Messrs. Lake & Elliot. | ||
| View original record | x7360 To By. c. to H1. c. to RHC. Hs/Rm.11/KW.1.11.34. We are somewhat concerned at the wear which took place on 28-EX rear drum. We have been talking to Mr. Longley of Ferodos and in his experience… | ||
| 01-page62 | Letter to Ferodo Limited regarding a chemist's report and photomicrographs of problematic and well-performing brake drums. | ||
| View original record | 17360 Exptl. Dept. Hs/Rm.17/KW. 1st November, 1934. Messrs. Ferodo Limited, Chapel-en-le-Frith. For the attention of Mr. Longley. Dear Sirs, Further to our conversation on the subject, we hand you… | ||
| 01-page63 | The examination of a 28-EX Rear Axle after 25,000 miles. | ||
| View original record | To Hs. from RHC. RHC.6/MS19.10.34. 28-EX. Rear Axle. The above axle has been dismantled for examination after 25,000 miles. The general condition of the axle was good, but the following points were… | ||
| 01-page64 | Laboratory report on the analysis of a badly worn brake drum, attributing wear to the increased size of graphite flakes. | ||
| View original record | COPY To BY. RHC. HL1/AG.19.10.34. Laboratory Report No.L3115. Re: Brake Drums. R.H.C. Submitted to us a Brake Drum which was found to have worn badly on a 10,000 miles test. The material was analysed,… | ||
| 01-page65 | Three types of wing nut cams for the easy adjustment of brakes on Phantom II, 20/25HP, and Bentley models. | ||
| View original record | 47360 C.Hs. G.Horry from Mx. R GRY MxG/T5.11.34. PH.II. 20/25HP & Bentley. Easy adjustment of Brakes. This feature which has been on Bentley from the beginning is now on production for Phantom II and… | ||
| 01-page66 | Recommendation regarding the importance of correct brake clearances and making the job more foolproof. | ||
| View original record | -2- We do feel however in view of the very great importance of correct brake clearances that some steps should be taken to make the job more foolproof. If this is not possible, the parts should at… | ||
| 01-page67 | The mechanical efficiency of brake system components. | ||
| View original record | X7360 EXPERIMENTAL DEPARTMENT REPORT. REFERENCE :- Hs/AFM.4/KW.21.12.34. Subject of Report:- Mechanical Efficiency of brake System Components. General Conclusions :- That the efficiency is not high… | ||
| 01-page68 | Technical analysis of the mechanical efficiency and issues within the brake systems of Phantom and Spectre models. | ||
| View original record | Mechanical Efficiency of Brake System Components. The mechanical efficiency of R.R. brake systems is not high; for instance, if 100 lbs. load is applied to a Phantom brake pedal, 30 lbs. only is… | ||
| 01-page69 | Report analyzing the efficiency of various mechanical components, such as toggles and Bowden cables, to diagnose performance loss. | ||
| View original record | -2- HS/AFM.4/KW.21.12.34. DA. has suggested that the trouble may be due to a large number of small distortions. His original suggestion that the carrier plate might distort under load can hardly… | ||
| 01-page70 | Analysis of the efficiency and friction coefficients for a torsion shaft, pin joint, and lever. | ||
| View original record | -3- Torsion Shaft in 20/25 Front Axle. The efficiency of this component is 89%, and is apparently constant. This includes the two pin joints on it. Therefore for a Bowden cable to be as good as the… | ||
| 01-page71 | Graph plotting the efficiency and deflection of brake toggles for a Bentley vehicle. | ||
| View original record | EFFECIENCY OF BRAKE TOGGLES, ETC (BENTLEY.) LEFT Y-AXIS: DEFLECTION OF BRAKE SHOES AT TOGGLE PIVOTS, 1/1000'S MOVEMENT RIGHT Y-AXIS: % EFFECIENCY X-AXIS: LBS- LOAD APPLIED AT LAST EXTERNAL 3.5"… | ||
| 01-page72 | Blueprint graph and table showing the efficiency of a well-oiled Bowden cable under various angles and loads. | ||
| View original record | PERCENTAGE EFFICIENCY % EFFICIENCY OF BOWDEN CABLE READINGS TAKEN WITH CABLE WELL OILED Graph data: Curve 1: M = 0.264, ANGLE = 16° Curve 2: M = 0.282, ANGLE = 60°, MEAN DIA = 7.0" Curve 3: M = 0.214,… | ||
| 01-page73 | Graph showing the efficiency curves for one and six 20-25 HP back axle brake levers against input load. | ||
| View original record | EFFICIENCY LINE FOR ONE LEVER EFFICIENCY LINE FOR SIX LEVERS PERCENTAGE EFFICIENCY INPUT LOAD - LBS EFFICIENCY OF 20 - 25 H.P. BACK AXLE BRAKE LEVER Nọ G.53687 ABOVE 75 LBS. LOAD THE EFFICIENCY IS… | ||
| 01-page74 | Graph plotting the efficiency and deflection of a pin-jointed octagon against input load in pounds. | ||
| View original record | EFFICIENCY % 100% 90% EFFICIENCY OF PIN JOINTED OCTAGON R R PIN JOINTS Nᵒˢ G 53634 G 50142 G 52047 EFFICIENCY (95.5%) SPRING BALANCE IN ONE "SECONDARY" SIDE GIVING DEFINITE SLIP IN JOINTS. FOR N =… | ||
| 01-page75 | Graphs showing the efficiency of a Bowden cable against angle at various loads. | ||
| View original record | M F S S PERCENTAGE EFFICIENCY 500 LBS. 300 LBS. DEGREES DEGREES PERCENTAGE EFFICIENCY 50 LBS. 25 LBS. BOWDEN CABLE GRAPHS OF EFFICIENCY AGAINST ANGLE AT VARIOUS LOADS ANGLE - DEGREES. ANGLE - DEGREES. | ||
| 01-page76 | Graph plotting load against movement to determine the efficiency and hysteresis of a torsion shaft for a 20-25 front axle. | ||
| View original record | PERCENTAGE EFFICIENCY 100% 90 80 EFFICIENCY 88.7% EFFICIENCY OF TORSION SHAFT IN 20-25 FRONT AXLE HYSTERESIS READINGS TAKEN WITH SPRING BALANCE IN 'SECONDARY' GIVING DEFINITE SLIP IN SHAFT. EFFICIENCY… | ||
| 01-page77 | Photograph of a cable-operated control or brake mechanism assembly. | ||
| View original record | ", | ||
| 01-page78 | Load testing rig with a Salter's spring balance and a series of linked components under tension. | ||
| View original record | SALTER'S IMPROVED SPRING BALANCE | ||
| 01-page79 | Modification to address oil on hand brake shoes for the Phantom II and 25 HP chassis. | ||
| View original record | X7360 To EP. From HA/FD. c.c. to Wor. c.c. to E. c.c. to By. Hm/FD.1/KW.17.1.35. Phantom II & 25 HP. Chassis - Hand Brake Efficiency. With reference to your memo. EP.7/HH.16.1.35, re oil on hand brake… | ||
| 01-page80 | Hand brake efficiency and oil on the brakes for the Phantom II & 25 HP chassis. | ||
| View original record | x7360 To EP. From Hs/FD. c.c. to WOP. c.c. to E. c.c. to By. Hs/FD.16/KM.18.1.35. Phantom II & 25 HP. Chassis - Hand Brake Efficiency. Re your memo. EP.7/HH.16.1.35. and the question of oil getting on… | ||