PrecisionJuniorEngine.jpeg (539 × 539 pixels, file size: 69 KB, MIME type: image/jpeg)
Summary
editF.E.Baker produced this unusual 170cc engine in 1913 under their 'Precision' trademark. This image is taken from the description of the engine in The Motor Cycle from November 1913.[1] The two unusual characteristics for the time are the unit construction, with engine and gearbox combined, and the horizontal valves operated by levers.
Known as the Precision Junior it was used by several motorcycle manufacturers during 1914, but at the end of 1914 it was redesigned with side-valves at the rear of the cylinder and the bore increased to 65mm giving it 199cc capacity.
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 | This image is in the public domain in the United States because it was first published outside the United States prior to January 1, 1929. Other jurisdictions have other rules. Also note that this image may not be in the public domain in the 9th Circuit if it was first published on or after July 1, 1909 in noncompliance with US formalities, unless the author is known to have died in 1953 or earlier (more than 70 years ago) or the work was created in 1903 or earlier (more than 120 years ago.)[1] |  |
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- ^ The 1914 Precision Engines, The Motor Cycle, 20th November 1913, p1507
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 09:35, 10 August 2020 | | 539 × 539 (69 KB) | Oldnoccer (talk | contribs) | F.E.Baker produced this unusual 170cc engine in 1913 under their 'Precision' trademark. This image is taken from the description of the engine in The Motor Cycle from November 1913.<ref>The 1914 Precision Engines, The Motor Cycle, 20th November 1913, p1507</ref> The two unusual characteristics for the time are the unit construction, with engine and gearbox combined, and the horizontal valves operated by levers. Known as the Precision Junior it was used by several motorcycle manufacturers dur... |
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