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 showing the specifications and dimensions of a bellows component.
| Identifier | ExFiles\Box 151\2\ scan0171 | |
| Date | 10th September 1933 | |
| DRAWING NOT TO BE SCALED. THERMOFLEX WORKS, WINDMILL ROAD, SUNBURY, MIDDLESEX. IMPORTANT NOTE FULL CONVOL. THIS END. HALF CONVOL. THIS END. 6 1/2 CONVOLUTIONS BELLOWS FREE LENGTH .636 +.050 -.000 BELLOWS TO COMPRESS TO .536 +.000 -.025 WITHOUT THE CONVOLUTIONS BECOMING SOLID, AND MUST RETURN TO EXACTLY .636 +.050 -.000 AFTER COMPRESSION. TO COMPRESS .10" UNDER LOAD OF 5.5 LBS DIMENSIONS: 1.040" +.010 -.010 1.500" -.010 ALTERATIONS: A {Mr Adams} / 6 1/2 CONVOLS SPECIFIED LIMIT ON O.D FROM +.000 -.010 TO +.000 -.020 RATE OF 5.5 LBS PER .10" ADDED HJ 5-10-33 B/ BELLOWS FREE & SOLID LENGTH SPECS ADDED EP. {G. Eric Platford - Chief Quality Engineer} 26-11-38 C/ O.D. FROM 1 1/2" +.000 -.020 TO 1.500" -.010" I.D. FROM 1" TO 1.040" +/-.010" HJ 25-1-38 TITLE BLOCK: ONE OFF PER SET BELLOWS PART No. BGA1491 DRAWING No. B.G. 7750 DR'N APP. CH'K DATE: 10-9-33 WORKING LENGTH + OR - FACE AREA D° MACHINED DIMENSIONS WITHOUT LIMITS TO BE WITHIN ± OF SIZE. MATERIAL ⊕ MACHINED ALL OVER f MACHINED G GROUND SUPERSEDES SUPERSEDED BY | ||