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Portion of the tube on the line, 1845. Creator: Unknown
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Portion of the tube on the line, 1845. Creator: Unknown
Portion of the tube on the line, 1845. Diagram showing part of the track of an atmospheric railway, a system using air pressure for locomotion, invented by Clegg and Samuda. A large tube is laid down in the centre of a line of rails. This tube has an opening at the top, which is closed by a valve, formed of a leather strap, covered with short plates of iron above and below. Now, the strap being broader than the plates, it is pressed against the top of the pipe by a succession of long rods, screwed down with hook bolts, and thus forming a hinge. On the side on which the valve opens is a groove, which is filled with a composition of wax and tallow. It is evident that when the valve is raised, there will be space enough for a bent plate of iron to pass into the tube. From " Illustrated London News", 1845, Vol VII
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Media ID 20549996
© The Print Collector/Heritage Images
Air Pressure Clegg Diagram Innovation Jacob Public Transport Railway Line Railway Track Railway Tracks Railways Samuda Samuel Train Track Illustrated London News
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EDITORS COMMENTS
This print showcases a portion of the tube on the line, taken in 1845. The diagram depicts an innovative concept for an atmospheric railway system, which utilized air pressure for locomotion. The invention was credited to Clegg and Samuda, two brilliant minds of their time. Intriguingly, a large tube is laid down at the center of a line of rails in this illustration. At the top of the tube sits a valve made from a leather strap covered with iron plates above and below. To ensure proper functioning, long rods are screwed down with hook bolts to press the broader strap against the top of the pipe, creating a hinge-like mechanism. The valve opens into a groove filled with wax and tallow composition on one side. When raised, it allows enough space for a bent plate of iron to pass into the tube seamlessly. This ingenious design aimed to revolutionize public transport during Britain's Victorian era. The print not only captures this remarkable technological innovation but also offers us insight into 19th-century transportation advancements. With its detailed engraving style reminiscent of newspaper illustrations from that period, it serves as both historical documentation and artistic representation. Although we may never know who precisely captured this momentous image or brought it to life through engraving, we can appreciate its significance as an emblematic symbol of progress in railway technology during that era.
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