. Cross tie forms and rail fastenings with special reference to treated timbers . Fig. 66.—Relative position of the screw dowel to the screw-spike when in OS CROSS-TIE FORMS AND EAIL FASTENINGS. OLD PINE TIES 16000 -15000-14000-13000-12000 -11000 - 9000-8000-7000- 5000-4000-3000- / > < m w i *L k **/ i y I 6 0 0 .0 2 04 .0 3 10 12 U i .1 6 C 02 04 06 .08 .10 1 i i 4 K VERTICAL DISPLACEMENT - INCHES Fio. tjs.—Comparative resistance to vertical pressure of screw-spikes in pine ties, old and new, with and without dowels. OLD PINE TIES s / —i f 4 f -4 y / Hi L r 4- 0 .02 .04 06 08 .1
. Cross tie forms and rail fastenings with special reference to treated timbers . Fig. 66.—Relative position of the screw dowel to the screw-spike when in OS CROSS-TIE FORMS AND EAIL FASTENINGS. OLD PINE TIES 16000 -15000-14000-13000-12000 -11000 - 9000-8000-7000- 5000-4000-3000- / > < m w i *L k **/ i y I 6 0 0 .0 2 04 .0 3 10 12 U i .1 6 C 02 04 06 .08 .10 1 i i 4 K VERTICAL DISPLACEMENT - INCHES Fio. tjs.—Comparative resistance to vertical pressure of screw-spikes in pine ties, old and new, with and without dowels. OLD PINE TIES s / —i f 4 f -4 y / Hi L r 4- 0 .02 .04 06 08 .10 12 14 .1 6 ( ) 02 .04 .06 0 8 .10 .12 .14 16 LATERAL DISPLACEMENT- INCHES Fig. 69.—Comparative resistance to lateral pressure of screw-spikes in pine tics, old and new, with and without dowels. 15000- 14000- 13000 12000- 1/1 11000- a z Z) 10000- o a. 9000- _i _i Z)£L 8000- _J 5000- 4000- 3000- 2000- 1 1000- OLD DOWELS. BEECH TIES 69 NEW 1 / -) f 7 J / / / T r~ f- 7 f / 7 t/ f— T / ft f / w f ■A 7 T r n f— r-\ / y j / $ i I ■ V 7 f 7 / / J r r 77 1 7 // i 7 7 r / \ .02 .04 .06 .08 10 .12 .14 .16 0 .02 04
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectwoodpre, bookyear1904
