File:American engineer and railroad journal (1893) (14758552654).jpg

Identifier: americanengineer66newy (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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blue heat is more seriously affected thansteel. 5. There is apparently a mechanical disintegration goingon in plates exposed to the action of fire, water and scalein a fire-box. 6. Steel tubes do not seem to be as durable as irontubes. The Committee do not consider that their investigationsare conclusive, and ask that they be continued ; which wasapproved by the Convention. STANDARD BOLTS AND NUTS. This Committee gives a brief historical account of theadoption of the Sellers or United States standard forscrew threads, and describes the gauges used for threadsand for taps and dies, which are now considered thestandards of the Association. Some excellent recom-mendations as to practice in fitting up bolts are alsomade. In conclusion the Committee makes the followingrecommendations : I. That the Association commend and emphasize theUnited Slates standard, and urge a rigid adherence to thesame, and deprecate the use ot over or under-sized boltsand nuts. 370 THE RAILROAD AND (August, 1894.
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>y. 0 <oo < 1; oJ Q.^ DO O Vol. LXVI, No. i.) ENGINEERING JOURNAL. 371 2. It is practicable to maintain the standard with (hemethods and gauges available. v It recommends the adoption by ihe Association of theUnited Slates standard for sin- of nuts, based upon roughsize, regardless of finished nuts. These recommendations were approved, and the Com-mittee was instructed to prepare a circular calling atten-tion to their importance. AN EXHIBIT OF COMPOUND LOCOMOTIVES. The engraving given herewith is from a photograph ofthe exhibit made by the Schenectady Locomotive Worksat the Master Mechanics Convention at Saratoga. It in-cluded three engines of the two-cylinder compound typewhich the Schenectady Company has advocated andadopted, and of which it has already liuilt quite a number. The lirst of these engines and the one, from its position,shown most prominently in the engraving was a ten-wheelpassenger engine built for the new Adirondack & St.Lawrence Railroad. This engine is

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