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).
Diagram illustrating the layout and operation of a Bowden wire brake system.
| Identifier | ExFiles\Box 120\3\ scan0087 | |
| Date | 22th June 1931 | |
| PROVISION CAN BE MADE FOR ADJUSTMENT AT THIS POINT IF REQUIRED. OIL PROOF SHEATH OUTER CASING OIL TIGHT FIT IN OUTER WIRE ABUTMENT & OF WIRE TO BE AS NEAR TO & OF KING PIN AS POSSIBLE. SUGGESTED ARRANGEMENT OF 'BOWDEN' MECHANISM FOR FRONT BRAKE. ANCHOR PLATE BOWDEN (ENGINEERS) LTD., VICTORIA ROAD, WILLESBDEN JUNCTION, LONDON, N.W.10. ANGULAR CHASSIS ABUTMENT TUBE TO GROUP OR CENTRAL CHASSIS LUBRICATION LUBRICATOR FLANGE FITTING LUBRICATOR FOR BOLTING TO CHASSIS BOWDEN MECHANISM GREASE GUN NIPPLE. CONNECTION TO CENTRAL CHASSIS SYSTEM, OR ANY OTHER SUITABLE MEANS OF LUBRICATING. MUFF COUPLING - ROD TO INNER WIRE BRAKE ROD VIEW SHOWING SUGGESTED OUTER WIRE ABUTMENT & JUNCTION BOX ON CHASSIS, WHEN USING A COMBINATION OF RODS & 'BOWDEN' WIRE. BOWDEN (ENGINEERS) LTD., VICTORIA ROAD, WILLESBDEN JUNCTION, LONDON, N.W.10. 5/16 OR 3/8 DIA BOLTS ON 2" PITCH CENTRES FOR ALL ABUTMENT FLANGES. ALL WIRE ADJUSTMENTS SHOULD PREFERABLY BE MADE ON INNER MECHANISM AT 'A' OR 'B' PREFERABLY THESE OUTER CASINGS SHOULD BE AS SHORT AS POSSIBLE BUT AMPLE ALLOWANCE SHOULD BE MADE TO PERMIT OF MAXIMUM SPRING MOVEMENT ETC, WITHOUT PULLING THE CASING TAUT. DIAGRAM OF BOWDEN WIRE BRAKE OPERATION LAYOUT LUBRICATOR WITH GREASE GUN NIPPLE CAN BE APPLIED IF REQUIRED BRAKE PEDAL ROD CONNECTING BRAKE PEDAL TO CROSS SHAFT OUTER MEMBER ABUTMENTS CROSS SHAFT OUTER MEMBER INNER MEMBER IF THIS WIRE IS OF A LENGTH WHEN IT WILL 'FLOP' BADLY, MEANS SHOULD BE EMPLOYED TO SUPPORT IT. LUBRICATORS SHOULD BE USED & PLACED MIDWAY BETWEEN EACH LENGTH OF OUTER CASING. BOWDEN (ENGINEERS) LTD., VICTORIA ROAD, WILLESBDEN JUNCTION, LONDON, N.W.10. BRAKE LAYOUT DIAGRAM BOWDEN WIRE OPERATION THIS DRAWING MUST NOT BE SCALED ALL OTHER MACHINING DIMENSIONS TO BE WITHIN .005 OR .1 m/m CARE DRAWING OFFICE BOWDEN (ENGS) LTD DRN. W.G.C CHECKED J.H.L. 22-6-31 DRG. No. BE 240/148 RECOMMENDATION CHART OF BOWDEN WIRE MECHANISMS No 3X, 3XH OR 4X. FOR CARS UP TO 8.H.P. No 4X, 4XH OR 5X. FOR CARS OF 8.HP - 12.H.P. No 5X, 5XH, 6X OR 6XH FOR CARS OF 12 - 20HP No 6X, 6XH, 6BX, OR 6BXH, FOR CARS EXCEEDING 20.HP No 7X FOR LARGE COMMERCIAL VEHICLES. ENLARGED VIEW OF REAR MECHANISM OUTER CASING ABUTMENT INNER WIRE SCREWED ENDS SPECIAL LOCKNUT FORK END | ||