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).
Quotation for Stroborama equipment, synchronisers, and photographic arrangements.
| Identifier | ExFiles\Box 27\2\ Scan305 | |
| Date | 21th November 1934 | |
| 101 Leadenhall Street. London. 21-11-34. Quotation - STROBORAMA EQUIPMENT (Type "A"). Item 1 Type "A" STROBORAMA LIGHTER: (generator and projector). The type "A" lighter works on 110 or 220 volts alternating current and necessitates the use of an independent or a contact synchroniser, according to application. TYPE "A" SYNCHRONISERS 2. INDEPENDENT HAMMER BREAK SYNCHRONISER: Driven by an electric motor provided with a tachymeter and regulated by a rheostat and hand break. It enables observations to be made without contact with the machine under examination when its motion is very regular. 3. CONTACT HAMMER BREAK SYNCHRONISER: Driven by the machine under examination; It is necessary in obtaining an appearance of strict immobility independent of the machine's irregularities, precise measurements, and in the use of the Photographic arrangement. It comprises a system of hand angular displacement with fixed connecting poles, allowing the points of ob-servation to be changed and an appearance of slow motion to be obtained. Total Cost of foregoing equipment, including Customs Duty for entry into this country ... ... ... £710 0 0 (Seven hundred and ten pounds sterling) ALL SPECIAL SYNCHRONISERS: BRUSH OR WITH GRADUATED DIAL, ANGULAR DISPLACEMENT OR SUPPLEMENTARY CONTACT, IF REQUIRED. 4. PHOTOGRAPHIC ARRANGEMENT: Can be fixed on type "A" STROBORAMA complete with condenser, projector mounted on adjustable stand, and manipulator. An ordinary camera may be used (not included) and plates of an average sensitiveness. Total cost, including Customs Duty for entry into this country; £353 0 0 (Three hundred and fifty three pounds sterling). | ||