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).
Standardisation of a 20HP starter switch with reduced gauge spring fingers, positive release and self-centering contacts.

Identifier  ExFiles\Box 172\2\  img035
Date  21th April 1925
  
RR 755 (10M) (SL391 2-11-23) MP 281297
ORIGINAL
COMPLETED 11.5.25.
STANDARDISATION of CHASSIS PARTS.
Date 21.4.25.
X No. 3915
Drawing No. D.51234
Description of Parts. 20 HP. STARTER SWITCH WITH REDUCED GAUGE OF SPRING FINGERS, POSITIVE RELEASE AND SELF-CENTERING CONTACTS.
Origin. To equalise wear on contacts and improve action of switch generally.
Experimental Test Report. ATTACHED.
Road Test Report. Run 10,000 miles on 7-G-11 and GF.68.
Part List
A Scrap and replace at all costs, including Chassis already delivered to customers.
B Scrap and replace on Chassis in works.
C Scrap present stock and replace on all Chassis not yet handed to test.
D Use existing stock Alteration effective on future Chassis
Weight of Old Part.
Cost of Old Part. £ 1. 5. 3d.
Weight of New Part.
Cost of New Part. £ 1. 7. 6d.
Difference per Car.
Difference per Car. 2. 3d. increase.
Cost of Parts in Works which will be scrapped if commenced on:-
Series...£...
Series...£...
Series...£...
Signature of Mr. De LOOZE that above is correct. My/Rns. 7.5.25.
SIGNATURES
DATE
REMARKS
MR. JOHNSON
11.5.25
Agreed. C.Johnson.
MR. B. JOHNSON
11.5.25
Agreed. B.J.
MR. ROYCE
28/4/25
Agreed FHR
MR. WORMALD
21.4.25
Agreed. Wor.{Arthur Wormald - General Works Manager}
MR. ROWLEDGE
27.4.25
Agreed. Rg.{Mr Rowledge}
MR. DAY
23.4.25
Agreed. Da.{Bernard Day - Chassis Design}
MR. BAILEY
22.4.25
Agreed. BY.{R.W. Bailey - Chief Engineer}
MR. PLATFORD
21.4.25
Agreed. Improvement required, present one does give trouble in service.
MR. ELLIOTT
23/4/25
Agreed OE
MR. NORTHEY
22.4.25
Agreed. PN.{Mr Northey}
MR. HIVES
8.5.25
Agreed. E.Hives.
[Stamp] CHASSIS
  
  


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