. Building and repairing railways . Fig. 10. a pocket instrument which recordsthe distance the person carrying it haswalked. In reality it records the num-ber of steps taken, but by proper ad-justment the distance traveled is in-dicated. 54 BUILDING AND REPAIRING RAILWAYS. the next valley and reach the summit of thenext divide, using the desired grade and curva-ture. Any errors of dis-tance made from one di-vide to another will notaffect those beyond. Inmaking such surveyscamp outfits are neces-These should be asand simple as pos-If the country isand sparsely set-the engineer will
. Building and repairing railways . Fig. 10. a pocket instrument which recordsthe distance the person carrying it haswalked. In reality it records the num-ber of steps taken, but by proper ad-justment the distance traveled is in-dicated. 54 BUILDING AND REPAIRING RAILWAYS. the next valley and reach the summit of thenext divide, using the desired grade and curva-ture. Any errors of dis-tance made from one di-vide to another will notaffect those beyond. Inmaking such surveyscamp outfits are neces-These should be asand simple as pos-If the country isand sparsely set-the engineer willprobably take two ponies,one to carry his appli-ances, and the other toride. When possible he. Fig. 11 A. , the distance traveled bythe tire of a wheel. In reality it re-cords the number of revolutions, butby proper adjustment the distancetraveled is indicated.
Size: 1680px × 1488px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
