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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).
Letter from Wellworthy Piston Rings Ltd. discussing Aluminium-tin bearings and material specifications.

Identifier  ExFiles\Box 115\5\  scan0029
Date  16th May 1938
  
SERVICE DEPOTS
LONDON
89 BLACKFRIARS RD S.E.1
TELEPHONE: WATERLOO 1762-3
172 GT. PORTLAND ST.{Capt. P. R. Strong} W.1
TELEPHONE: MUSEUM 2433
119 LEYTONSTONE RD STRATFORD . E . 15
TELEPHONE: MARYLAND 2439
BIRMINGHAM
143 SUFFOLK STREET
TELEPHONE: MIDLAND 0638
MANCHESTER
232 DEANSGATE
TELEPHONE: BLACKFRIARS 5914
NEWCASTLE
MILLICAN'S BUILDINGS, MARKET ST
TELEPHONE: 23874

DIRECTORS:
G.{Mr Griffiths - Chief Accountant / Mr Gnapp} H.{Arthur M. Hanbury - Head Complaints} ALEXANDER
J.{Mr Johnson W.M.} W. HOWLETT
C. B. KAY
P. WALDEN

ON ADMIRALTY, WAR OFFICE
AIR MINISTRY, INDIA OFFICE LISTS

WELLWORTHY
PISTON RINGS
LIMITED
PISTON & PISTON RING SPECIALISTS
LYMINGTON
HANTS
WORKS & HEAD OFFICE: STANFORD RD

SERVICE DEPOTS
LIVERPOOL
45 RENSHAW ST.{Capt. P. R. Strong}
TELEPHONE: ROYAL 5786
LEEDS
82 WOODHOUSE LANE
TELEPHONE: 25774
CROYDON
246 HIGH STREET
TELEPHONE: 0234
SOUTHAMPTON
17 PORTSWOOD ROAD
TELEPHONE: 74778
HULL
285 ANLABY ROAD
TELEPHONE: 15312
CANTERBURY
21 & 22 ROSE LANE
TELEPHONE: CANTERBURY 2456

TELEPHONE: LYMINGTON 520 (5 LINES)
TELEGRAMS: WELLWORTHY
CODE: MARCONI

OUR REF FB/EHF.
YOUR REF

Handwritten Note:
16209
Mths{Reg Matthews} - Please write a conform letter with Blackett
16th May, 1938
Rin

Messrs. Rolls Royce Ltd.,
Derby.

Dear Sirs,
Attention of Mr. Rowbotham.

We have to thank you very much for the time both you and your assistants gave the writer on Friday afternoon last when we had the pleasure of discussing the latest position regarding Aluminium-tin bearings.

It is understood that the AC.6. material, according to Mr. Wheeler, is not satisfactory, from a casting point of view, and that by going over to AC.9, which eliminates the Antimony content, it will be much easier for castings and that the results as regards uniformity of material throughout the whole of the castings will be much better.

We have therefore written to High Duty Alloys briefly mentioning the position and requesting that they should let us have the AC.9. material as soon as they possibly can.

Regarding the position of using Aluminium-tin bearings on soft shafts, you mentioned that from your own point of view you would not run any more bearing tests as you are satisfied regarding big end bearings and that main bearings are satisfactory in Babbit material. You suggested, however, that as we were keen on making as wide an application of this bearing as possible, that it would be advisable for you to make a test with bearings on a soft shaft, and that this would involve some expenditure. This was briefly mentioned to Mr. Howlett over the week-end, who agrees that this should be done, and we suggest therefore, that you should let us know at the earliest possible moment as to the course or test to be
  
  


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