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Knight's Mechanical Encyclopedia (ed. Knight) 4 0 Browse Search
George Ticknor, Life, letters and journals of George Ticknor (ed. George Hillard) 2 0 Browse Search
George Ticknor, Life, letters and journals of George Ticknor (ed. George Hillard) 2 0 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Simplon (Switzerland) or search for Simplon (Switzerland) in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), I. (search)
form 1,170 feet in traversing 4,700. The boiler, furnace, and carriage are inclined so as to present a level floor on the slope. The inclined plane or railway of Mt. Washington is familiar to many tourists. In this connection the following data may be useful: — The pressure on a level pike against the collar is, say, 1/35 of the load. An ascent of 1 in 35 would double the draft, and may be a suitable maximum ascent. The French maximum is 1 in 20. Telford's maximum was 1 in 30. Simplon, Italian side, average 1 in 22; Swiss, 1 in 17. Angles. Degrees.Inclination.Feet per Mile.Angles. Degrees.Inclination.Feet per Mile. 1/21 in 115460° 28′1 in 12542 3/41 in 76690° 35′1 in 10053 11 in 57921° 9′1 in 50106 1 1/21 in 381331° 16′1 in 45117 21 in 291841° 26′1 in 40132 2 1/21 in 232311° 38′1 in 35151 31 in 192771° 55′1 in 30176 41 in 143692° 18′1 in 25211 51 in 114622° 52′1 in 20264 3° 49′1 in 15352 4° 24′1 in 13406 5° 43′1 in 10528
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
ublic in many parts of England by the Romans. In the time of Edward I. they were ordered to be widened and cleared of trees within 200 feet of the road, for the prevention of robberies. Toll was granted on one in London in 1346. The parishes were made answerable for their condition in 1553. Toll-gates were erected in 1663. In the sixteenth year of the reign of the frivolous Charles II. a turnpike road was established through Hertfordshire, Cambridgeshire, and Huntingdonshire. The Simplon road from Geneva to Milan, built by Napoleon, cost the French government 17,000,000 livres ($3,250,000). MacAdam says: The measure of substituting pavements for convenient and useful roads is a kind of desperate remedy, to which ignorance has had recourse. The mode of road-making with broken stone, before MacAdam, was to make a foundation of large stone, on them place stones of a medium size, and finish off with the smallest. MacAdam employs broken stone of as hard a variety as possi