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).
Specifications for the steering, road springs, frame, and lubrication.
| Identifier | Morton\M14\ img009 | |
| Date | 18th September 1922 guessed | |
| (J) Steering continued:- switch and mixture control are on the instrument board.) The longitudinal steering tube is fitted with set-up spring buffers to reduce the force of the shocks reaching the steering box. The well proportioned steering wheel is notched and covered with black non-conducting covering (including the spokes) so that the steering wheel is pleasant and clean to handle, and has a handsome appearance. The thrust bearing is easily adjustable being on the steering column. The steering joints are of RR (patent) design easily adjustable, and all parts of the bearing being firmly locked after adjustment, so that the blocks do not knock about and become loose in their housing (a unique feature). It is fitted in two standard positions known as "B" for chauffeur driving, and "D" for owner driving - the latter is for bodies not exceeding 4 seats. (K). ROAD SPRINGS. Both back and front are semi-elliptic and very long for the size of the chassis. They are extremely carefully fitted, and at the front end of each spring where the control is taken, they are provided with solid ends having central eyes to avoid road shocks causing unnecessary and dangerous bending stresses. (L). FRAME. The frame is of deep channel section and is fitted with a number of tubular cross members to render it more rigid than usual against twisting, and brackets are provided along the outside for the attachment of the bodywork so making it unnecessary to use wide and heavy runners in body construction, and permitting the rear seats to be unusually low. Every effort has been made to keep the frame low and considering the large road wheels (33") and large road clearance (11") this has been extremely successful. (M). LUBRICATION. Engine - pressure by pump with float & pointer level indicator. Gearbox & back axle - (oil retaining) splash. Road wheels and universal joints - oil retaining. | ||