๐”– Bobbio Scriptorium
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Underground telegraphing


Publisher
Elsevier Science
Year
1879
Tongue
English
Weight
116 KB
Volume
107
Category
Article
ISSN
0016-0032

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๐Ÿ“œ SIMILAR VOLUMES


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๐Ÿ“‚ Article ๐Ÿ“… 1879 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 58 KB

The last five Stops on the above list were nmde with the valve so adjusted as to be opened by a brake-block fi'iction which wouhl not produce skidding even on a wet rail, while in all other cases it was so 'adjusted as to product the greatest amount of retardation on a dry rail. The action of the va

Telegraphing in mid-ocean
โœ C. ๐Ÿ“‚ Article ๐Ÿ“… 1882 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 56 KB
The cosmopolitan underground telegraph,
๐Ÿ“‚ Article ๐Ÿ“… 1885 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 38 KB

A. b." of the Seetio~'s Classification.) This conduit is constructed of highly glazed terra cotta, in sections two feet in length, with a tap joint on tile top and ends, and is bedded on a cast iron or terra eotta base plate. Its interior is fitted with iron frames, placed at suitable distances ap