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Distortion test report on a Bentley 60 clutch casing.


Identifier  ExFiles\Box 124\1\  scan0192
Date  7th July 1939
  
10HH

To. Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} from HPS {Horace Percy Smith - Experimental Factory Mgr} /Bl.

HPS {Horace Percy Smith - Experimental Factory Mgr} /B1.1/IC.7.7.39.

Bentley 60 Clutch Casing Distortion
Test G.B.4333.

Further to the tests reported HPS {Horace Percy Smith - Experimental Factory Mgr} /Bl.1/JW.15.6.39., the cast iron casing which had been used for setting up was tested for distortion under the same conditions as the A {Mr Adams} /DC casing.

The distortions obtained at 500lb. were as follows, the nomenclature being the same as the previous test,-as shown on Bl. 2348.

"A" + .0015" "D" + .0010"
"B" + .0010" "E" + .00075"
"C" + .0040" "F" + .00075"

The deflection vertically at "C" was .0025".

It will be noted that the horizontal deflection at "C" is lower than the reading with the A {Mr Adams} /DC casing(without ribs) but is higher than that recorded with the ribbed version.

-----------------

HPS {Horace Percy Smith - Experimental Factory Mgr} /Bl.

R.M.L.

W. Bell
  
  
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).


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