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).
Design alterations for a battery box, including a sketch.
| Identifier | WestWitteringFiles\D\November1919\ Scan14 | |
| Date | 1st November 1919 | |
| To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} -2- E2/G18/11/19 Contd. (2) Raise the top of the battery box lid{A. J. Lidsey} as near to the floorboards as possible. The LeC. drawing we sent in the first place shewed the lid{A. J. Lidsey} well above the top of the frame. (3) Use only a shallow lid{A. J. Lidsey} with the minimum allowable space above the battery terminals. Mr. Royce thinks you shew more space than is necessary at this point. (4) Use four long bolts in nickel steel for holding the battery. The pieced up stainless steel bolts should be cancelled. The nuts for securing the battery box must be put on well greased, and gun metal nuts of suitable proportions should be used. (5) Use forked bosses at the bottom of the battery box brackets so that the bolts can be swung in instead of having to be threaded through. These bosses should be quite plain, with no beads or flanged features, and should have countersink or counterbore to prevent the bolts swinging out after the nut has been tightened up. (6) The battery box lid{A. J. Lidsey} should be held down by swing bolts pinned to the cross tubes. Overhanging forked metal plates screwed to the lid{A. J. Lidsey} will engage with these swing bolts - see sketch. It is considered that the effect of the above alterations will be to raise the bottom of the battery box considerably, and to increase the stability of the fitting to the desired degree. Would you kindly put these alterations in hand. Mr. Royce has not yet completed his inspection of the junction box, but I will send you his criticisms of this later. E.{Mr Elliott - Chief Engineer} | ||