. The railroad and engineering journal . - 3 3 18 0 o 8 9 13 6- •6-745 18 3 30-880 3 9 0 13 9 •7-378 18 6- 3-750 6- 9 3 ■4 0 i iS 9 3»-633 9 9 6- 4 3 ■9 0 33-528 0 9 9 14 6 ■9-3SO •9 3 34-436 3- 10 0 9-144 «4 9 ■9 6- 35-357 6- 2-755 10 3 »5 0 •9 9 5 9 10 6- 15 3 1 20 o 37-a39 it will be at the extreme outside of the arc at F, and thechain will be horizontal. The correction for i chain inordinary measurement may easily be determined meniallywith r
. The railroad and engineering journal . - 3 3 18 0 o 8 9 13 6- •6-745 18 3 30-880 3 9 0 13 9 •7-378 18 6- 3-750 6- 9 3 ■4 0 i iS 9 3»-633 9 9 6- 4 3 ■9 0 33-528 0 9 9 14 6 ■9-3SO •9 3 34-436 3- 10 0 9-144 «4 9 ■9 6- 35-357 6- 2-755 10 3 »5 0 •9 9 5 9 10 6- 15 3 1 20 o 37-a39 it will be at the extreme outside of the arc at F, and thechain will be horizontal. The correction for i chain inordinary measurement may easily be determined meniallywith reasonable accuracy by multiplying the square of thedifference of level in feet, as estimated by the eye by ■^\-^for the correction in inches and decimals. Thus : For 6ft. difference, 6x6 =3 24 inches. Error = J; less than 6 ft. the error is still less. In the table the corrections are given in inches and deci-mals of an inch for differences from 1 it, to 20 ft. Vol. LXV, No. 5] ENGINEERING JOURNAL. 207. FOUR-CYLINDER COMPOUND LOCOMOTIVE, CENTRAL SWISS RAILROAD. Hi
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
