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).
The testing of special spring terminal clips for sparking plugs.
| Identifier | ExFiles\Box 37\3\ scan 024 | |
| Date | 10th October 1917 | |
| To Wor.{Arthur Wormald - General Works Manager} for Mr. Coverley. c. to EH. EFC4/T10.10.17. X.3194 - SPECIAL SPRING TERMINAL CLIPS FOR SPARKING PLUGS. Herewith please receive some spring terminal clips which have been sent to us from the Robinhood Engineering Works, and which we understand have been approved by the Air Board. The following extract is from a letter from that Firm accompanying the clips:- "The object of these clips is to overcome the trouble of terminal nuts getting loose and to prevent risk of damage to the insulation of plugs through terminal nuts being done up with pliers. They also have the advantage that they are easy to place in position and do not get hot enough to be uncomfortable to handle after running. It is intended to use the standard high tension wire terminal which is put on the plug in the ordinary way, and the spring clip is then fitted on instead of the milled terminal nut, with the two legs of clip pointing to the cylinder so that if the clip had a tendency to unscrew up the thread these legs would come in contact with the wire terminal". Will you kindly test and report whether there is any benefit derived from the use of these clips. EFC 1951 BY.12-10-17 447 GDS. H 010 V 982 N.R. | ||