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).
Discussion and proposal for ordering improved oil seals from George Angus & Co. for testing.
| Identifier | ExFiles\Box 84\4\ scan0094 | |
| Date | 12th August 1936 | |
| ROT/Ms. c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. E.{Mr Elliott - Chief Engineer} c. DA{Bernard Day - Chassis Design} GRY{Shadwell Grylls} x202 Rm{William Robotham - Chief Engineer} BY.9/G.12.8.36. GEORGE ANGUS & Co. RE: IMPROVED OIL SEALS. ----------------------------------------- In discussing the question of oil seals with the two representatives of the above Company, one of them being the Austrian expert for a new material which is oil resistant up to a temperature of 180°C, and which can be moulded to accurate dimensions, whilst being produced in a form which is rather more flexible than leather, we wish to have the following parts ordered in order to ascertain the value of the improved seals, as in the opinion of the people present at the discussion with the representatives it was agreed they appeared to be a better job. In the oil seals they were using a special high grade chrome leather pressed and treated to render it non-porous and less susceptible to temperature, they guarantee it will stand 110°C. The pressing of the leather retainer was done very accurately, and the general finish was unquestionably far ahead of anything we have seen so far in regard to the smoothness of the surface. In addition, they had a material which will mould to replace leather, it will stand up to 180°C, can be produced in varying degrees of softness or resilience like rubber, has the appearance and flexibility of rubber, and can be moulded as demonstrated by a number of samples to complicated forms and to very accurate dimensions. We therefore propose to order a dozen sets of seals to the following dimensions :- (a). 1.753 outside diameter x 1.125 inside diameter x 7/16" wide, the section for the chassis being 7050. used on both 25/30 and Phantom lll. (b). 2.066 outside diameter x 1.375 inside diameter x ¼" wide, the section for the chasis being 6120. used on both 25/30 HP. and Phantom lll. The dimensions represent housing and shaft sizes and not seal figures. (c). In addition, we require for the oil filler caps :- 12 off E.59182 for the Bentley chassis. 12 off E.84667 for 25/30 and Phantom lll. | ||