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Identifier: americanengineer81newy (find matches)
Title: American engineer and railroad journal
Year: 1893 (1890s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad cars
Publisher: New York : M.N. Forney
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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yielding to great pres-sure and then spring back to the proper form. At the sametime the sides act to strengthen and support the platform andthe load thereon. Besides the above there are a number of other early carswhich are noteworthy in that they embody the essential ideasthat govern present practice. In La Mothe*s design the theoriesconcerning the underframe were sound, but he preserved woodencenter and side sills while making the superstructure of metal.Five years later Mr. Joseph Davenport designed a car with bothunderframe and superstructure of iron. He realized the possi-bility of the best distribution of the metal in the framing andreplaced the bar metal of La Mothes by U-shaped posts andcarlines connected by longitudinal braces of bar iron, using eavesand side sills of angle iron and pressed or rolled intermediatecross bearers similar to the posts; though the construction ofthe center sills is faulty the design presents many good ideas. AMERICAN EXGIXEER AND RAILROAD JOURNAL.
Text Appearing After Image:
u 2 June, 1907. AMERICAN ENGINEER AND RAILROAD JOURNAL. 213 In i860 Mr. Robert Montgomery offered a design which wasan advance over Davenports in the character of pressed fram-ing. Here we first note the use of corrugated iron to supportthe floor. Interior steel sheathing is to be noted in a design byMr. John A. Roebling later on in the same year. These earlycars possessed in common the feature of center sills continuousover the platform. The next thirty years saw these same ideasworked out by numerous designers in various ways and alsobrought to light some cars of a peculiar character, such as oneframed entirely of steel tubing with the center bearing fastened of mechanically solving the problem, but the matter was only ina formative state and it is believed that the introduction ofthe steel side door suburban car on the Illinois Central (Amer-ican Engineer, October, 1903, page 358) in t! ; 1902marked the beginning of the new industry in .America. A fewmonths later the car for the In

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https://www.flickr.com/photos/internetarchivebookimages/14755567661/

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Volume
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81
Flickr tags
InfoField
  • bookid:americanengineer81newy
  • bookyear:1893
  • bookdecade:1890
  • bookcentury:1800
  • booksubject:Railroad_engineering
  • booksubject:Engineering
  • booksubject:Railroads
  • booksubject:Railroad_cars
  • bookpublisher:New_York___M_N__Forney
  • bookcontributor:Carnegie_Library_of_Pittsburgh
  • booksponsor:Lyrasis_Members_and_Sloan_Foundation
  • bookleafnumber:231
  • bookcollection:carnegie_lib_pittsburgh
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014


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