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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).
Experiment to measure the load on bonnet catch springs to address difficulty in opening the bonnet.

Identifier  ExFiles\Box 25\1\  Scan071
Date  12th January 1915
  
R.R. 657. (100M) (W.W. 968. 17.11.14.) E.P. 7593.

ROLLS-ROYCE LIMITED,
NIGHTINGALE ROAD,
DERBY.

TELEGRAMS: "ROYCAR," DERBY.
TELEPHONES: 476 (FOUR LINES).

Names and Indicating letter.
Initial of person addressed.

A Mr. ADAMS
By Mr. BAILEY
Bn{W.O. Bentley / Mr Barrington} Mr. BARRINGTON
B Mr. BEREND
Bt{Capt. J. S. Burt - Engineer} Mr. BURT
Cn{Mr Chamberain} Mr. CHAMBERLAIN
C Mr. CHICHESTER
Cr{Mr Cra???ster / Mr Chichester} Mr. COWEN
Cx{Major Len W. Cox - Advertising Manager} Mr. COX
D Mr. DeLOOZE
Da{Bernard Day - Chassis Design} Mr. DAY
E Mr. ELLIOTT
Eu EUROPE
Hy{Tom Haldenby - Plant Engineer} Mr. HALDENBY
H Mr. HALLAM
Mr. HANBURY
J Mr. JOHNSON
JS{Mr Johnson's Secretary} Mr.JOHNSON'S Secretary
BJ Mr. BASIL JOHNSON
K Mr. KILNER
Mac{Mr Macintosh} Mr. MACKINTOSH
Mcr Mr. MERCER
M Mr. MOON
Na{Mr Nadin} Mr. NADIN
PN{Mr Northey} Mr. NORTHEY
O Mr. OLDHAM
Pa{Mr Paterson} Mr. PATERSON
EP{G. Eric Platford - Chief Quality Engineer} Mr. PLATFORD
Rn{Mr Robinson} Mr. ROBINSON
R Mr. ROYCE
RS{Sir Henry Royce's Secretary} Mr. ROYCE'S Secretary
JR{Mr James Royce} Mr. JAMES ROYCE
Sn{Mr Sanderson} Mr. SANDERSON
LHS{Lord Herbert Scott} LORD HERBERT SCOTT
Sp{Mr Spinney} Mr. SPINNEY
Y VIENNA
Wa{Mr Wallis} Mr. WALLIS
Whr{Mr Wheeler} Mr. WHEELER
Wd{Mr Wood/Mr Whitehead} Mr. WHITEHEAD
Wor{Arthur Wormald - General Works Manager} Mr. WORMALD

Handwritten:
Mr Hives
Wor.{Arthur Wormald - General Works Manager} for Exptl. Dept.

RE BONNET CATCH SPRINGS.

12.1.15. E2/G12115.

I have noticed on Mr. Royce's car that it is difficult to open the bonnet, owing to the increased amount of friction produced by the bonnet catch springs, and as this will be rather a variable factor without some specification of loading, we would like to know the results obtained by making the following experiment.

Introduce a clip as shewn in the sketch

(sketch of a bonnet clip)
CLIP
W?

of 1/32" thick material between the spring and the bonnet, and find what load the spring will sustain at the point of just breaking contact with the bonnet.

This should be done for both.

Stamp: RECEIVED JAN 12 1915

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


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