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).
The condition of P & R and Exide battery cells, detailing plate and component wear.

Identifier  WestWitteringFiles\O\2January1926-March1926\  Scan191
Date  22th January 1926 guessed
  
JC.15.
-3-
Contd.

in the box the compound having cracked badly ka allowing them to vibrate.

In the case of the P & R the sealing compound was good, showing little sign of cracking, and the cycle stay spokes were also good and tight.

Condition of Cells. P & R.{Sir Henry Royce}

On withdrawing the elements from their containers the positive plates were broken due to being tight with swelling, the grids being very weak and easily broken, but the paste was quite intact and firm.

The negative plates were mainly in good condition, but some had loosened some of their pellets and forced their way through the wood separators which had worn rather thin and consequently shorted through the perforations of the ebonite separators which showed no signs of wear.
It was impossible to ascertain the amount of sediment which had collected owing to the broken pieces of positive plate in the bottom.

Exide.

The positive plates had lost a large amount of paste in some cases leaving a bare grid, but the grids remained quite strong, especially in the peripheries.
The negative plates had lost very little or no paste this having swelled to a considerable extent and was quite soft and spongy.

Contd.
  
  


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