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).
Design and implementation of a new, larger 22-gallon petrol tank for the Bentley 'B' 4 model.
| Identifier | ExFiles\Box 179b\1\ img325 | |
| Date | 16th February 1937 | |
| M.{Mr Moon / Mr Moore} FROM DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} ORIGINAL LTD C. to Boy-Tuffn. HC. H-RBG. BENTLEY 'B' 4. - LARGER PETROL TANK. At the request of the Expl. Dept. we have got out a 22 gal. petrol tank for use on B. 4., shown on N. sen. 3692. herewith. The tank now in use is that of Pere: 2. and has a capacity of 16 gals. having had to depart from this we have taken the opportunity to design a tank more suitable for B. 4. which chassis has bodies always having a rear boot, and never having the rear cushion behind the rear axle. By so doing we have been able to achieve - besides the larger capacity - a cheaper suspension, and a simple filler which does not need a vent pipe. Access to the filler is obtained through a door in the back panel of the boot of the body, which is the policy preferred by Sales on our present cars. As drawn this tank will not go on the cars for which the bodies have been already constructed, but the bodies in hand will be made to accommodate the filler and tank. In order to deal with the car now on the road, and the open body not yet mounted, we send herewith N. sen. 3694. showing a filler for this large tank, the snout of which is held in the rear panel of the boot, and is connected to a snout on the tank by means of rubber hose in a manner identical with that used by Alvis on the 'Speed 20'. The cap is that of the old P. 2. and is screwed on. Another alternative suggestion would be to make the filler solid on the tank, not using the rubber hose, and projecting through the large clearance hole in the body panel, the latter having a flange finally bolting to it and edged with a rubber bead. Some difficulty might arise in this design when attempting to lower the body on to the chassis during mounting. DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} | ||