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Departmental memo discussing axle clearances and the design of a chassis for a worm geared axle.


Identifier  ExFiles\Box 8\4\  04-page001
Date  12th May 1911
  
R.R. 348A (100 H) (W 387. 4-4-11). E.P. 8817

DEPARTMENTAL MEMO.

Issued May 12th 1911.

This column is for Name of Person addressed.
C. J. {Mr Johnson W.M.}

DATE.
12-5-11

[Handwritten note in left margin]
F.H.R.
Would an arched back axle be possible? C.J. 14/5/11

[Main Content]
R5/F12511.
X645
Re. Worm geared axle.

I thank you for your list of clearances under the axle. I am afraid we have little to chose in the question of clearances.
It seems as if we shall have to be contented with about 6 3/4 with the present tyres deflected with the load. Of course we can bear in mind that this point never gets much nearer the ground owing to it being direct on the axle, and not on the body, and owing to the fact of it being opposite the wheel and not between the wheels as in the case of the fly wheel.
I am pushing Mr. Spinney on, in preference to other urgent work, with a view to getting a chassis suitable to carry the back axle which we are designing at home.
I am afraid, however, it will necessitate a very high bonnet body indeed and yet give us very little increase of clearance under the fly wheel.

[Signature]
FHR

[Footer]
This sheet must be filed with the correspondence to which it refers.
  
  
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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