An old engraving of a large pneumatic caisson in the 1800s. It is
Download this stock image: An old engraving of a large pneumatic caisson in the 1800s. It is from a Victorian mechanical engineering book of the 1880s. This complex version was used in the construction of bridge piers in Copenhagen, Denmark. It has separate chambers for working – the bottom one larger. A caisson is a watertight structure constructed for the excavation for the underwater foundations. In pneumatic caissons (or pressurised caissons) an airlock allows access to the chamber. Workers, sometimes (sandhogs) remove mud and rock debris (muck) from the workspace to the surface – here by large buckets on pulleys. - 2D8M6R2 from Alamy's library of millions of high resolution stock photos, illustrations and vectors.
The pneumatic telegraph network, pneumatic tube system at the Central Telegraph Office in Paris, France. Europe. Old 19th century engraved illustration from La Nature 1884 Stock Photo - Alamy
An old engraving of a pneumatic tube system for delivering small items (mail and packages) short distances around an office or factory. It is from a Victorian book of the 1880s. Pneumatic
Chapter 1 - Pile Driving Introduction - Pile Buck Magazine
An old engraving of a pneumatic caisson that were needed for building the foundations for the piers for the Brooklyn Bridge, New York, USA in the early 1870s. It is from a
Chapter 1 - Pile Driving Introduction - Pile Buck Magazine
Caissons, Compressed-Air Work and Deep Tunneling - Divers Alert Network
Antique Double Barrel Shotgun, Keystone Arms Co. Belgium. Pat 1883
The Project Gutenberg eBook of Bulletin 240 - Contributions from the Museum of History and Technology, by Smithsonian Institution.
Bridge foundations hi-res stock photography and images - Alamy
What were some of the coach guns of the Wild West era? - Quora
Smithsonian Institution – United States National Museum – Bulletin 240
How the Brooklyn Bridge went from being a 'wild experiment' in architecture to becoming designated a historical landmark 140 years later
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