File:Leading American inventors (1912) (14577480419).jpg

Identifier: leadingamericani00iles (find matches)
Title: Leading American inventors
Year: 1912 (1910s)
Authors: Iles, George, 1852-1942
Subjects: Inventors
Publisher: New York : Henry Holt and company
Contributing Library: University of Connecticut Libraries
Digitizing Sponsor: University of Connecticut Libraries

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
An enlarged section of an Edge-rail to show the disposition ofparts which gives greatest strength. If the rectangle a b dc con-tains the same quantity, the strength of the rail A B D C is to thestrength in the form of the rectangle as i3^ is to i. (From A Practical Treatise on Railroads and Carriages. By ThomasTredgold, New York, 1825.) yielding, so that weights were increased forthwith to be-tween 40 and 42 pounds to the yard. These newrails were i6 feet long, 3^^ inches high, 2^/^ inches wideat the head, and 3^ inches wide at the base. They wererolled by Sir John Guest at Dowlais, in Wales, at eightpounds sterling ($38.93) per ton. Mr. Stevens added to his rails several auxiliary devicesof importance. He designed the iron tongue, or toe-piece,which has become the fish-plate, as well as the bolts and nutswhich give unity and rigidity to track construction. Whenhe called upon the Stephensons they showed him their QJ O > rt v. Q> . O _ r -J >,
Text Appearing After Image:
c —- o _, CC > t/i 4) Uh •^ .4_J hy) I/; «; W JOHN AND ROBERT LIVINGSTON STEVENS 23 Planet, introducing marked improvements on the Rocket. Mr. Stevens at once ordered a like engine forthe Camden & Amboy line. This engine, the John Bull,was landed in August, 1831. It weighed 10 tons; its boilerwas 13 feet long and 3^/^ feet in diameter. Its cylinderswere 9 inches by 20; its firebox had a surface of 36 squarefeet; its four driving-wheels ran on a gauge of five feet.Water and fuel were borne on a rough four-wheeled flatcar; the tank had been a whisky barrel in a Bordentowngrocery. The boiler hose of leather had been stitched bya local shoemaker. Liberal supplies of pine generated asteam pressure of thirty pounds to the square inch. Thefirst run of this locomotive took place near Bordentown ona track 1,067 feet long, with rails laid on stone blocks.Here a demonstration was given to the assembled law-makers of New Jersey, much

Note About Images