Creosoted timer . Plate 11.—Sections of Underground Creosoted Conduits. 30 CREOSOTED TIMBER While this bulkhead has been entirely satisfactory, it isopen to criticism, in that the top longitudinal might havebeen a creosoted 6x6, instead of an untreated 12x12, the. Plate 12.—Underground Creosoted Conduits in Use. former costing but three-fourths as much as the latter, andlasting four times as long. The wooden ties might havebeen of iron at a less cost and much greater life. ITS PREPARATION AKD USES 31 Plate 8 represents non-creosoted white oak cross-tiesat the expiration of eight years service
Creosoted timer . Plate 11.—Sections of Underground Creosoted Conduits. 30 CREOSOTED TIMBER While this bulkhead has been entirely satisfactory, it isopen to criticism, in that the top longitudinal might havebeen a creosoted 6x6, instead of an untreated 12x12, the. Plate 12.—Underground Creosoted Conduits in Use. former costing but three-fourths as much as the latter, andlasting four times as long. The wooden ties might havebeen of iron at a less cost and much greater life. ITS PREPARATION AKD USES 31 Plate 8 represents non-creosoted white oak cross-tiesat the expiration of eight years service ; while Plate 9 de-lineates the only usage to which they were put. Plate 10 shows a creosoted terminal or distributing pole, forcollecting and conveying to the subway the various electricalconductors of a district. Such poles, either rectangularor octagon, are rapidly coming into favor as the cheapestand in every way the most desirable for this purpose. Plate 12 shows a subway of creosoted wood tubing. Itis an inexpensive construction and one that is permanent,easily laid, and is less liable to injury from settlement ofthe surrounding earth than any form of masonry or tiledconduit. Plate 11 presents a detail of the tubing. In this connec-tion the followi
Size: 1361px × 1836px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1900, bookpublishernp, bookyear1900
