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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).
Specification comparison document detailing revisions to front springs, bonnet, and rear axle components.

Identifier  ExFiles\Box 169\3\  img047
Date  26th May 1933
  
(2)

Previous Specification
Front Road Springs(Firth)
The following springs removed.
N.S. O.S.
Piece No. F.100097. F.100097.
Type. 600 lbs. 600 lbs.
Loaded lbs. 616" 616"
" camber. .250 pos. .250 pos.
" length. 35" 35"
Initial camber. 3.55 3.55.
Fitted with Wefco Gaiters.

Bonnet LOP.E.100669.
E.100557 Side Plate-RH.{R. Hollingworth}
E.100548 Rest Plate-RH.{R. Hollingworth}
E.100545 " angle-RH.{R. Hollingworth}
Removed.

Rear Axle LOP.G.100277.
Axle No. 5. Per. 11.
Gear No. 4. 9X46.Ratio.

RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel} 8/AP.26.5.33.

Revised Specification
Front Road Springs-(Woodhead)
The following New springs fitted in conjunction with Revised Steering.
N.S. O.S.
Piece No. F.100078 F.100078.
Type. 600 lbs. 600 lbs.
Loaded lbs. 610" 610"
" camber. .210 neg. .210 neg.
" length. 35" 35"
Initial camber. 3.025 3.025.
Fitted with Wefco Gaiters.

Bonnet LOP.F.100669.
The following New parts fitted in conjunctionwith Revised Steering.
E.100965 Side plate-RH.{R. Hollingworth}
E.100967 Rest " -RH.{R. Hollingworth}
E.100968 " angle -RH.{R. Hollingworth}

Rear Axle LOP.G.100277-RR.S.224.
Axle No.5.Per.11.
Gear No.10. 9X46 ratio.
The following New details fitted to suit 9X46 Ratio to RR.Sch.224.
1-G.100828 Bevel wheel.
1-G.100827 Bevel pinion.
Duplex thrust bearing G.101281.
New Centre casing. G.100822.
New Bridge piece. G.100826.
New G.54269 New departure bearing pinion housing.
New R.135 Diff.Roller Bearing.

continued.
  
  


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