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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).
Tests of Steering Pivots F.2353 - X.160.

Identifier  ExFiles\Box 2\B002_X168\  00000001-page115
Date  9th June 1913
  
From Exp. Dept.
Copies for:
Mr Johnson.
Mr Royce.
Mr Spinney.
Mr Hadin.

Report on tests of Steering Pivots
F.2353 - X.160

This is the medium type pivot. It is similar to U.402 except that it is slightly thickened up in the W. section. I believe it is fitted to cars from No.2075 to 2300.

Two new pivots were tested and were run at a speed of 750 reversals per minute on the test rig.

No. 1 broke in 2 hours 30 minutes.
No.2 " "1 " 5 "

These were the only new ones I could get, but I ran two second hand ones to destruction. They were not cracked at the start.

No.1 broke in 8 minutes.
No.2 " " 18 "

Yd Haldenby
  
  


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