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).
Specifications and load calculations for springs fitted to a centre point radiator mounting.

Identifier  ExFiles\Box 18\3\  Scan097
Date  6th May 1930
  
For Files.

x 7960

HB{C. E. Harcombe}/Rn.{Mr Robinson}6.5.30.
X.7250
X.7960
X.7518.

CENTRE POINT RADIATOR MOUNTING:

Springs actually fitted to 1-WJ and 80-WJ.

No. of coils (Total) 7.5
Wire. 12 S.W.G.
Mean rad. .292
Free length 1.350
Choc length .780

Rating 13,000 x .000117 21
---------------- = ---- = 13½ Lbs/1"
6.5 x .0247 .160

Normal load = set up x rating. = .220 x 13½ = 29.5 lbs.
7,700 lbs/sq.in.

Max. load = choc a bloc = .570 x 13½ = 76 lbs.
= 20,000 lbs/sq.in.
stress.

Washers fitted to Hs.{Lord Ernest Hives - Chair}290.

Rn.{Mr Robinson}
  
  


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