. American engineer . wedge .10 Total $ $ Stral Rod. Refit back end brass to pin $ Refit front end brass to pin .59 Reline back end wedge .40 Total $ Difference $ The patents on this design of main rod are controlled bythe LocoiTiotive Improvement Company, Clinton, la. Accidents on the Union P.^^cific-Southern P.\cific Kruttschnitt, director of luaintenance and operation ofthe Union Pacific and the Southern Pacific, states that for fouryears not a passenger on the Southern Pacific lost his life throughcollision or derailment. During this period ,
. American engineer . wedge .10 Total $ $ Stral Rod. Refit back end brass to pin $ Refit front end brass to pin .59 Reline back end wedge .40 Total $ Difference $ The patents on this design of main rod are controlled bythe LocoiTiotive Improvement Company, Clinton, la. Accidents on the Union P.^^cific-Southern P.\cific Kruttschnitt, director of luaintenance and operation ofthe Union Pacific and the Southern Pacific, states that for fouryears not a passenger on the Southern Pacific lost his life throughcollision or derailment. During this period ,000 passen-gers were carried an average distance of 42 miles. The UnionPacific in approximately the same period of time had but a singleaccident which resulted in the death of a passenger. Theserecords are attributed to the automatic block signal system, onwhich $5,000,000 has been spent during the past five years. fth -^//[--^-HM-j -/of Solid End Main Developed at the Clinton Shops of the Chicago & North Western. \^4-^- -103^ Cenfers A^ September, 1912. AMERICAN EXGIXEEK. 481 LINK GRINDING MAGHLNE A number of years ago, F. H. Dersch, lorenian of the Chi-cago & North Western repairs shops at Dubuque, Iowa, designeda simple link grinding machine, which has been used for ten ortwelve years without repairs. It consists of two bars C C. whichare pivoted at their ends and can be set at any angle with eachother by adjusting the micrometer screws B B. Attached tothese bars. C C, either by sliding blocks A .1, or riding on themwith rollers, there is a frame D to which the link to be groundis bolted. Set with its center in a vertical plane above thepivotal point F of the two bars is an emery wheel, which canbe raised or lowered in a line with the center F. The method and kept always against the pins C C, then the path of the pointH, will be the arc of a circle. .And that circle will be the onepassing through G H G^. If the straight edges be moved to theposition // r, H K\ the point // w
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
