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).
Telegram from Royce detailing the cause and solution for a brake 'jaggering' problem by modifying the Ferodo lining.
| Identifier | ExFiles\Box 73\2\ scan0092 | |
| Date | 16th November 1923 | |
| X9240 CONFIRMATION OF TELEGRAM. WEST WITTERINGHenry Royce's home town. 16.11.23. X3409 / X9240 [ROWLEDGE & HIVES. ROYCAR. DERBY.] DEFINITE CAUSE OF JAGGERING IS FERODO EXTENDS ROUND TOO FAR FROM ANCHOR PIN ON ALL OUR BRAKES. CUT OFF THREE OF FOUR INCHES ON BOTH SHOES UNTIL IT DOES NOT REACH MORE THAN 120 DEGREES. YOU WILL THEN GET CONSISTENT AND SMOOTH ACTION both ways./.DRUMS MAY REQUIRE STIFFENING RING AS SUGGESTED. INCREASE OPERATING PULL. TRY EACH SHOE JOINTED TO FORM SERVO. TREAT FLOATING FULCRUM TYPE SAME. ALSO SERVO SHOES MAY BE TOO LONG AND THEREFORE GRABBING. ROYCE. | ||