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 sheet for a Weston Portable D.C. Instrument, Model 45.
| Identifier | ExFiles\Box 34\4\ Scan012 | |
| Date | 30th June 1918 | |
| Form L 177-11-13. WESTON Portable D.C. Instruments MODEL 45 (Stamped text over image: W/d.{John DeLooze - Company Secretary} ) (Stamped text on right: RECEIVED 30 JUN 1918) WESTON Portable Direct Current Model 45 Instruments are designed to meet the demand for a low-price portable instrument of sufficient accuracy for Station work and general testing. The movement of this type of instrument is completely enclosed in an iron case (which protects it from stray magnetic fields) securely fastened in a wooden carrying case, provided with a carrying handle and a hinged cover to protect the scale and binding posts. It is fitted with a knife-edge pointer, working over a mirror under the scale to eliminate errors in reading due to parallax, and possesses a very light moving system. It will withstand a large amount of rough handling without developing pivot friction or becoming unreliable. These Instruments may be supplied with self-contained shunts for certain ranges, and are supplied as Voltmeters, Ammeters, Milli-Voltmeters, Mil-Ammeters or Volt-Ammeters of any ranges desired. They are designed for all work in which the accuracy of our Model 1 is not desired, and owing to their excellent design, construction, and long life, are cheaper than any other instruments offered for similar service. MANUFACTURED BY Weston Electrical Instrument Co. LONDON OFFICE AND LABORATORY: Audrey House, Ely Place, Holborn, E.C. Telephone: 2029 Holborn. Telegraphic and Cable Address: "Pivoted, London." Inland Telegrams: "Pivoted, Smith, London." (Text on instrument scale: VOLTMETER MODEL 45 No 250) (Text on instrument plate: WESTON ELECTRICAL INSTRUMENT CO. NEWARK N.J., U.S.A.) | ||