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Elevation of Troughtons dividing engine, 18th century, (1886)
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Elevation of Troughtons dividing engine, 18th century, (1886)
Elevation of Troughtons dividing engine, 18th century, (1886). Until the 1770s, scales on scientific instruments had been marked out by skilled craftsmen in a process called dividing, this was partly mechanized from the 1770s when dividing engines were introduced. Originally used on small instruments, by the 1850s they were used to graduate scales on large astronomical telescopes, making hand-dividing obsolete. This particular example was completed by John Troughton, and is similar to the first successful dividing engine which was completed in about 1775 by Jesse Ramsden. Illustration from Cyclopaedia of Useful Arts, Mechanical and Chemical, Manufactures, Mining, and Engineering, by Charles Tomlinson, Volume I, (Jamess Virtue, London, 1886)
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Media ID 14937122
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Arithmetic Diagram Machine Machinery Mathematical Instrument Mathematics Maths Measurement Technical Drawing Wheel
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The photograph print showcases the remarkable "Elevation of Troughtons dividing engine" from the 18th century. In an era when scientific instrument scales were meticulously marked by skilled craftsmen, this process underwent a significant transformation with the introduction of dividing engines in the 1770s. Originally utilized for smaller instruments, these machines gradually replaced hand-dividing techniques and found their way into graduating scales on large astronomical telescopes by the 1850s. This specific example, expertly completed by John Troughton, bears resemblance to Jesse Ramsden's pioneering dividing engine that emerged around 1775. The illustration featured here is sourced from Charles Tomlinson's renowned Cyclopaedia of Useful Arts, Mechanical and Chemical, Manufactures, Mining, and Engineering (Volume I), published in London in 1886. Captured in engraving style, this image offers a glimpse into the intricate machinery involved in mathematical instrument production during the eighteenth and nineteenth centuries. With its wheels and technical drawings prominently displayed, it symbolizes both innovation and precision within mathematics and measurement fields. As we admire this historical artifact through modern eyes, we can appreciate how advancements like Troughtons' dividing engine revolutionized scientific practices while honoring the craftsmanship of those who came before them.
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