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 S. Smith & Sons regarding testing and adjustments to the Jackalls hydraulic jacking system on a Phantom III.
| Identifier | ExFiles\Box 139\2\ scan0454 | |
| Date | 31th December 1935 | |
| CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY [Crest: ENGINEERING AND ALLIED EMPLOYERS NATIONAL FEDERATION 1896] TELEPHONE: WELBECK 7916. TELEGRAMS: SPEEDOMET. WESDO. LONDON. S. Smith & Sons (Motor Accessories) Ltd [Logo: SMITH'S MP REGISTERED TRADE MARK] CABLES: SPEEDOFAC. LONDON. CODES: MARCONI, COMMERCIAL, BENTLEY'S. [Crest: BY APPOINTMENT TO HIS MAJESTY THE KING] BRANCHES AT PARIS MILAN SYDNEY WELLINGTON AGENCIES AND SERVICE STATIONS THROUGHOUT THE BRITISH EMPIRE AND IN ALL THE PRINCIPAL COUNTRIES. SHOWROOMS & DEPOTS 179-185 GT. PORTLAND ST LONDON, W.1. 26-33, COX ST LIVERY ST BIRMINGHAM 145, JACKSONS ROW DEANSGATE MANCHESTER 21, DRURY STREET GLASGOW DUBLIN & BELFAST 179-185, GT. PORTLAND STREET LONDON, W.1 Head Office and Factories CRICKLEWOOD WORKS LONDON, N.W.2 Please quote our reference: G.3.EHB/KW. Yrs. Hs{Lord Ernest Hives - Chair}/Bwg.{J. C. Bowring}20/KW & Hs{Lord Ernest Hives - Chair}/Bwg.{J. C. Bowring}14/KW. December 31st.1935. Messrs. Rolls-Royce Ltd., Derby. For the attention of Mr. Bowering. Re. Jackalls - Phantom 111. Dear Sirs, We are in receipt of your letters of the 19th and 23rd inst. and note your remarks. We acknowledge receipt of the Reservoir Tank which has been fitted, and is, in our opinion, of sufficient capacity for the operation of the Jackalls. We also note that the distributor pump is to be left in its present position. (1) We have refitted the front jacks in a slightly more vertical position. (2) We have also fitted the 5/16" pipe from the distributor box to the rear jacks with the hole opened out in the distributor box on the rear outlet, to the side of the pipe-line which gives the following results;- The car was raised on all four jacks with 145 strokes of the handle, in one min. 30 secs. Ground clearance on the front tyres is 1 1/4" - on the rear 2" On "release" the front jacks return right back - on the rear jacks, the first extension, (5 1/4") in 15 secs. The rear jacks return 6 1/4" from the ground in two mins and right home in 2 1/2 mins. The respective ground clearance of the TO AVOID DELAY ALL ENVELOPES SHOULD BE | ||