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).
List of new drawings and standard parts for a Widney bonnet hinge on a Wraith III.
| Identifier | ExFiles\Box 7\6\ X 605 Bonnet-page26 | |
| Date | 7th April 1938 | |
| 605 C. Rm.{William Robotham - Chief Engineer} BY/Ald.{F. Allwood - Experimental Design}21/G.7.4.38. BONNET - SECTION S260. RADIATOR - SECTION S250. F.CD.411 Bonnet Layout for Widney Hinge. F.CD.564 Fixed Centre Hinge Pin. WRAITH 111. Please receive herewith two blueprints (three where marked thus *) of the following new drawings detailed for use with Widney hinge on a standard Wraith:- SECTION S260. Ex.S.678 Top Plate R.H. 1 off. Ex.S.679 Top Plate L.H. 1 off. Ex.S.680 Hinge Rod 1 off. Ex.S.681 Sleeve - Bonnet Eye. 1 off. Ex.S.682 Sleeve - Bonnet Eye. 1 off. SECTION S250. * Ex.S.683 Bonnet Eye. 1 off. * Ex.S.684 Support Base - Bonnet Eye. 1 off. * Ex.S.685 " " Bracket 1 off. Ex.S.686 Collar. 1 off. together with the following standard parts :- SECTION S260. K.4851 Taper Pin. 1 off. SECTION S250. KB.750 Stud. 1 off. K.3806A. Washer. 1 off. K.4310 Nut. 1 off. K.9008 Washer. 1 off. KB.200 Stud 2 off. K.4304 Nut 2 off. K.9005 Washer. 2 off. K.1910 Screw. 2 off. KB.3904 Washer. 2 off. K.9006 Washer. 2 off. KB.1902 Rivet. 2 off. These pieces have been detailed at the request of Em/Std. on memo Em/Std.4/AP.4.4.38. and are for fitting to Em.G.V1.all. BY/Ald.{F. Allwood - Experimental Design} | ||