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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).
Meeting notes discussing design changes and agreements for various engine components.

Identifier  ExFiles\Box 109\3\  scan0128
Date  31th March 1941
  
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HPS{Horace Percy Smith - Experimental Factory Mgr}/CEP.3/EP.{G. Eric Platford - Chief Quality Engineer}31.3.41.

Item No.6 - RE.1639, RE.1640 Conn. rod and Cap.

It was agreed to permit the dies to proceed and Jnr.{Charles L. Jenner} will reconsider the bolt head fitting.

RE.2340/1 Conn. Rods.

Rm.{William Robotham - Chief Engineer} expressed dissatisfaction with this design, no work is to proceed until the design has been reviewed.

Item No.7 - RE.1645 Conn. Rod Bolt.

It was agreed to delete the two waisted portions and embody a plain diameter.

Item No.8 - RE.1683 Camshaft.

(a) Criticism of the centre hole was discussed at length. One suggestion was to increase the diameter from .1875" to .2812" Rm.{William Robotham - Chief Engineer} preferred a cored hole of .375" diameter. HPS.{Horace Percy Smith - Experimental Factory Mgr} promised to review this possibility and will advise Rm.{William Robotham - Chief Engineer}

(b) Jnr.{Charles L. Jenner} confirmed that it had been agreed to delete camshaft bushes and run direct in the casting.

Item No.9 - RE.1704 Pump Casing.

(a) It was agreed to run the first pump with Bush, RE.1713, deleted.

(b) From the point of view of quietness, Rm.{William Robotham - Chief Engineer} stated it is decidedly necessary to retain helical pump gears.

Item No.10 - RE.1705 Oil Pump Cover.

Jnr{Charles L. Jenner}'s proposal was accepted.

Item No.11 - RE.1712 Oil Pump Driven wheel bush.

Jnr{Charles L. Jenner}'s explanation was accepted.

Item No.12 - RE.1706, RE.1707 Oil Feed Pipe and Flange, between pump and oil gallery.

HPS.{Horace Percy Smith - Experimental Factory Mgr} strongly criticised brazing and Rm.{William Robotham - Chief Engineer} agreed to consider an olive joint scheme to cut out brazing.

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