Rolls-Royce Archives
         « Prev  Box Series  Next »        

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 Peto & Radford discussing battery test results and design improvements.

Identifier  ExFiles\Box 54\5\  Scan108
Date  12th February 1927
  
X 4655
1 Copy to O/C R.W. 'VID'
1 Copy to O/C R.B. 'F19'
1 Copy to O/C 'E.C.B'

COPY OF LETTER RECEIVED FROM
PETO & RADFORD,
50, GROSVENOR GARDENS,
LONDON, S.W.1.

M/5.
12th February, 1927.

Messrs Rolls-Royce Ltd.,
Derby.

For the attention of Mr. Fowler Clark. X.4655.
X.4414P.

We have yours of the 10th inst. re battery which you have opened, which is very interesting to us and we will let you have our laboratory report to see if it coincides with your own observations.

Your test shows that we are right in saying that the life of all these batteries is nearly always brought to a close by the sediment space fouling up and causing a short. This was why, some year or so ago, we considerably increased the height of the bottom rest to give more space and so postpone this failure, and this is what led to our box being a little higher and inadvertently being slightly above your permissible height. We were, however, extremely pleased that you were willing to overlook this, because the step that we have taken is a real improvement and we should have been disappointed if we had had to cut the whole thing down again.

Your remarks on the ebonite separators being rubbed through to nothing rather brings us back to the point where we were considering whether they ought not to be a little thicker at the expense of the wood, but you have consistently and always reported on the excellent condition of the wood separators that we make, and as long as they remain as good as this they will act as a good separation even in the latter stages of the life of the battery.

The battery seems to us to have done well and we presume that your bench test is equivalent to another ten or fifteen thousand miles road work, because the battery gets some rest on the road work and none on the bench test.

Yours faithfully,
PETO & RADFORD.

CERTIFICATE OF INSPECTION BY (Sgd) G.R.N.Minchin.
CERTIFICATE N^o
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙