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).
Letter from Gandy's Brake Lining regarding samples of brake linings and specifications for flexible couplings.
| Identifier | ExFiles\Box 141\3\ scan0138 | |
| Date | 14th February 1933 | |
| TELEGRAMS & CABLES "GANDY, BIRKENHEAD", "GANDY, PHONE, LONDON" CODES PRIVATE & A.B.C. 4TH & 5TH EDITIONS. TELEPHONE N° 1074 (TWO LINES) WALLASEY. SAFEGUARD BRAKE LININGS SAFE WITH SAFEGUARD Gandy's TRADE MARK BRAKE LINING Stocks held at LONDON 97 QUEEN VICTORIA STREET, and all principal towns. WHEATLAND WORKS, SEACOMBE, CHESHIRE, ENG. M/JT. 490. 14th February, 1933. Messrs. Rolls Royce Ltd., Derby. Dear Sirs, We have received word from our Manchester House that our representative - Mr.Stockwell - called at your works last Wednesday and interviewed Mr.Mills. We understand that you would like to have samples of all our Brake Linings and technical data referring to same. We have pleasure, therefore, in enclosing literature dealing with the technical aspects of our Brake Lining and the samples are being sent under separate cover. With regard to our Leather and Canvas Flexible Couplings, we have pleasure in giving you details of a representative size of Coupling so that you can compare its strength etc. with that of your standard article. The size of this Coupling is 8¼" O.D. x 3¾" I.D. Thickness of Leather 7/8" with 1/16"thick plates. Dia. of Bolt Holes - ½". Pitch circle dia. - 153mm. The maximum permissible deflection on the propellor shaft with a Coupling of this thickness is 5°. Tensile strength of Leather - 3,500 lbs. per sq.in. Allowable working stress - 500 lb. per sq.in. This Coupling is capable of transmitting a torque of 480 lb. ft. ENCLOSURE | ||