. Bulletin. Forests and forestry -- United States. RedCypress DBJPHOLES. <SlLLS. White Oak Scale:-i- Inch * I Foot . Pig. 4.—Example, of proposed practice without corbels. Bill of material. TIMBER, EXCLUSIVE OF TIES AND GUARD RAIL. IRON. Species. Used for— Size. Number Cost per Total thousand, cost. Longleaf pine White oak. Stringers Caps 8 pieces, 7j";xl4' long 982 i 1 piece, 12"xl2"xl0' 120 Red cypress White Posts 4 pieces 9"x9"xl3'.. 351 ! 2. si Sills .. 1 piece, 9" x 10" x 112 i '.23 Lon
. Bulletin. Forests and forestry -- United States. RedCypress DBJPHOLES. <SlLLS. White Oak Scale:-i- Inch * I Foot . Pig. 4.—Example, of proposed practice without corbels. Bill of material. TIMBER, EXCLUSIVE OF TIES AND GUARD RAIL. IRON. Species. Used for— Size. Number Cost per Total thousand, cost. Longleaf pine White oak. Stringers Caps 8 pieces, 7j";xl4' long 982 i 1 piece, 12"xl2"xl0' 120 Red cypress White Posts 4 pieces 9"x9"xl3'.. 351 ! 2. si Sills .. 1 piece, 9" x 10" x 112 i '.23 Longleaf pine 1 piece, 7"x7"xl8' 6" 76 ' .61 1,011 j 10. 28 Total cost of panel i Size. Number of pounds. Cost per pound. Total cost. Bolts (stringers) 8 pieces 3"x38J" at 6 15 15 24 ('nit*. 4 4 •n *-a SI. 97 Drift bolts, 2 pieces, l"x23", at .60 Washers, O. G., 10 pieces, 3" diameter, at .00 Total LM7 STRINGERS. The stringer is the first thing- to be considered in the design of tim- ber trestles. It is the most important member of the structure and the most difficult to design economically. The cost of a stringer is a func- tion of not only the number of feet, B. M., contained therein, but also of the height or maximum cross-sectional Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Division of Forestry. Washington : G. P. O.
Size: 1759px × 1420px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookpublisherwashingtongpo, booksubjectforestsandforestryunited
