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).
Instruction memo discussing the faults and drawbacks of Millennium jacks.
| Identifier | ExFiles\Box 10\6\ 06-page05 | |
| Date | 21th April 1913 | |
| 10869 F ROLLS-ROYCE LIMITED. INSTRUCTIONS [STAMP: WORKS AM 21 APR 1913] To Partworlwald 21. 4. 1913 Order No. X390. Customer's No. Re Millennium Jack. There are at least two kinds of "Millennium" Jacks; the single & the double screw, kinds. The single screw is too flat for our back axles, unless padded with a brick or block. The double screw design is - (1) weak & the screws get bent (2) it's unprotected & the screw may get wedged with dirt (3) it is rather slow to use (4) Some at least of the "Millennium" jacks require both hands to start them. This is very awkward especially in the case of raising a back wheel & necessitates the operator kneeling on the ground to reach under the petrol tank. There are by-the-way, very few jacks on the market without the above faults. Signed R D Spinks This Sheet must be filed on completion of the work. | ||