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).
Advertisement for Wellworthy Universal Radially Direct Pressure Piston Rings.
| Identifier | ExFiles\Box 16\1\ Scan139 | |
| Date | 11th November 1921 guessed | |
| processes in the trade so that the question of line contact was more or less overcome, and WELLWORTHY produced large quantities of rings that for parallel bearing were all that could be desired. Quality of material had been solved, line contact avoided by an arrangement in the process of manufacture which prevented its occurrence, but there yet remained the vital matter of UNIVERSAL RADIALLY DIRECT PRESSURE, which would cut out the curse of lapping in the rings; and revolving the problem from day to day and viewing it from every angle, the time arrived when on the First of March, 1920, Messrs. Gray and Howlett filed their provisional application for British patent for stressing piston rings in an eccentric matrix. The result or the first trial of this process confirmed the judgment of the Inventors. A Perfect Piston Ring made by a Perfect Mechanical Process, a measure of uniformity without parallel, and which could be supplied at a commercial price. Since the date of the conception of the idea, much experience has been gained. Many thousands of rings have been made by the process, which has been brought to an exact science. Patents have been applied for in the United States of America, France, Belgium, Italy and Germany, and WELLWORTHY Piston Rings have been used by the Sunbeam-Talbot-Darracq in their racing cars, by the A.J.S., Norton, Triumph, Ivy, etc., are exclusively used by most of the leading internal combustion engine builders, and are the only UNIVERSAL RADIALLY DIRECT PRESSURE Rings made in the world. These rings are manufactured in thoroughly up-to-date and completely equipped works at LYMINGTON, the ancient British port in HAMPSHIRE, and can be supplied promptly in any quantities at no substantially higher prices than the Imperfect Rings supplied by other makers. The Machinery Publishing Co., Ltd., 51-52, Chancery Lane, London, W.C.2. Telephone: 30 LYMINGTON. Telegrams: "WELLWORTHY." Code: MARCONI. Works: STANFORD ROAD, LYMINGTON. WELLWORTHY LIMITED Engineers LYMINGTON, HANTS. WELLWORTHY Piston Rings UNIVERSAL RADIALLY DIRECT PRESSURE Patented through-out the World give more Power THE SOLUTION OF A PROBLEM :: vital to the constructor of the :: INTERNAL COMBUSTION ENGINE Coventry Representative: Mr. J.{Mr Johnson W.M.} J.{Mr Johnson W.M.} PENDLE, 35, Bishop Street. 'Phone No. : 514 Coventry. Birmingham Representative: Mr. JAMES STEER, 45, Newhall Street. 'Phone: 3458 Central, B'ham. Scottish Representatives: Messrs. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} & J.{Mr Johnson W.M.} PATON, 8, Gordon Street, Glasgow. 'Phone No.: Central 5341. | ||