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 confirming the specifications for special compression springs.
| Identifier | ExFiles\Box 95\1\ scan0406 | |
| Date | 14th May 1937 | |
| ESTABLISHED 1760 [Handwritten]: 1300? 350 [Handwritten]: HARDY. SALTER LONDON: 50 LIME STREET, E.C.3. 'PHONE : MANSION HOUSE 5103 'GRAMS : SPRINGBALANCE, STOCK, LONDON. SPRINGS • ROLLER BEARINGS WEIGHING MACHINES • IRONMONGERY SPRING BALANCES • GAUGES TESTING MACHINES • IRON CASTINGS AUTOMATIC MACHINES • TYPEWRITERS MANCHESTER: CHRONICLE BUILDINGS CORPORATION STREET 'PHONE: BLACKFRIARS 9735 GEO. SALTER & CO. LTD., WEST BROMWICH 'PHONE: WEST BROMWICH 0666 (4 lines). 'GRAMS: SALTERS, WEST BROMWICH OUR REF. FS{F. Steele}/MH.{M. Huckerby} YOUR REF. FJH{Fred J. Hardy - Chief Dev. Engineer}/2/AP. May. 14th. 1937. Messrs Rolls-Royce Limited., DERBY. Dear Sirs, SPECIAL COMPRESSION SPRINGS. In answer to yours of the 13th. instant, regarding the above springs supplied in October last, to the following specification – Outside diameter 1.110-5 Inside diameter 0.535 + 5 Free length to be between 0.800 & 0.825. Load at a length of 0.575, 450-460.lbs. Max. choc-a-bloc length 0.500. Max. stress not to exceed 100,000.lbs/Sq.inch. These are as stated in your letter of 9th. October, reference EXPERIMENTAL DEPARTMENT, Hs{Lord Ernest Hives - Chair}/FJH{Fred J. Hardy - Chief Dev. Engineer}/30/KW. The steel was 9/32" X .125" and the springs contained 4 1/2-coils, and were 1/2" Solid length. Your instructions will receive immediate attention. Yours faithfully, FOR. GEO. SALTER & CO. LTD., [Signature] [Footer Text] Purchasers of MANUFACTURES of GEO. SALTER & CO. LTD., are requested to notice that they guarantee their efficiency so far as that they will replace any portions that can, in a reasonable time be shown to have failed through defective material or workmanship, but will not be responsible for any damages, direct or contingent, arising from such failure. In case of the occurrence of any strike of workmen, fire, breakdown of machinery, defective castings, or other unforeseen cause of delay the time fixed for completion of the contract shall be enlarged accordingly. All weights, measurements and powers given in estimate are stated as correctly as possible, and any trifling deviations shall not be taken to violate the Contract. Should any dispute arise on this Contract, same to be subject to arbitration. | ||