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).
Full-size drawing of special flexible front springs for a Bentley chassis.
| Identifier | ExFiles\Box 87\4\ scan0111 | |
| Date | 24th April 1936 | |
| FRONT EYE REAR EYE SPAN 35" 12 - PLATES PAD 3.05" 1/4" THICK MAIN PLATE SPECIFICATION LOAD: 775 AND 750 LBS WIDTH OF PLATES: 1 1/2" SPAN: 35" LOADED CAMBER: .5" POS FREE ": 6.000" DEFLECTION DUE TO LOAD: 5.5" CAMBER MAX BUMP NEG: 1.85" LUBRICATION SIMILAR TO Rm.{William Robotham - Chief Engineer} 72 ROLLED EYES FOR TOP LEAF STRESS MAX BUMP APPROX 48 TONS SQ IN. NOTE:- RANGE OF STRESS TO THE LOADED POSITION: 37.3 TONS SQ INCH " " " MAX BUMP: 53.3 " " REQUIRED 1-OFF 775 LBS LOAD 1-OFF 750 " Note:- DOWNWARD ARROWS INDICATE POSITION OF EXISTING CLIP CENTRES ON STANDARD SPRING PLATES Nos 1, 2 & 3 ARE 1/4" THICK. REMAINING PLATES ARE 15/64" THICK PLATE LENGTHS AS DRAWN SPECIAL FLEXIBLE FRONT SPRINGS FOR BENTLEY CHASSIS DRAWN FULL SIZE AS FOR LOAD 775 LBS DRAWING No 181 THOS FIRTH & JOHN BROWN LTD SPRING DEPARTMENT TINSLEY - SHEFFIELD 24TH APRIL 1936 REFERENCE. ROLLS. ROYCE LETTER HS{Lord Ernest Hives - Chair}/LES 8. KW EXPTL DEPT - DATED 22/4/36 | ||