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).
Bumping test of a 20' crinkled tube radiator with rigidly fixed side plates.
| Identifier | ExFiles\Box 78\3\ scan0085 | |
| Date | 3rd June 1915 | |
| To H.{Arthur M. Hanbury - Head Complaints} from Hy.{Tom Haldenby - Plant Engineer} Copy to J.{Mr Johnson W.M.} " " E.{Mr Elliott - Chief Engineer} " " Ma. [Handwritten] SCRAP [Handwritten] Copied [Handwritten] W H C Vve Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}6/L3615. June 3rd. 1915. Report on bumping test of 20" crinkled tube type Radiator having the side plates rigidly fixed to both top and bottom tanks. This radiator was specially made to test on the bumper to see if the rigidly attached side plates rendered the tubes less liable to leak due to shock and vibration. The radiator was of the usual type except that the side plates were fixed rigidly to the bottom tank by means of two screws and three rivets to each side. The suspension was of the trunnion type and the test was made on 2" alternate bumps at 105 revs. per minute. After running 5 hrs two leaks occurred in the tubes, one being 5½" from the bottom and ¾" from near side, and the other 1½" from bottom and 3½" from the near side. The result and nature of the leaks are what we should expect with the ordinary radiator without fixed side plates, therefore the fixing of the side plates alone does not seem to be beneficial. Mr Radin is now taking steps to obtain a radiator with side plates fixed as above and cross braces in addition as suggested by Mr Royce. Hy.{Tom Haldenby - Plant Engineer} | ||