. American engineer and railroad journal . DIAGRAM OF SPRING. w r>v Ht J . fhf litf-O —k to- Jt • -O 1 j »—° NOT* Ot !*<■• s A*n a/to*, ■• -¥. rwamn t tns/ ■tj 4» *■■•■<■ «j *« fi*-*t* oon tfS. J . gb* too fa h tight tkv »# Sef » • J33 SoJ, Oopt-e Tf*&ts\ O* ii ** levt* ?, sot?/a s. 2 rattn/A 3 FOXf VIA* S- t\#T a f* 5 - /latin ^C*?& emrSfrwsstnef if tpt hg - L b fHM*eJ*r /oa E/ P \ *K*th .-■v »t -n - Thickn, troft o*rfvs\Krt**: p»r 3•n sar/frtTS wing\ .-yy ..- -O ,*v 7*e/<** ■ Ml ..- -iPtlC*TiOl*S FIG. 1. FIG *i ooHtTbtaf Saf • Stt • -f s * 1. O final *Aerctrcra* ■aiy
. American engineer and railroad journal . DIAGRAM OF SPRING. w r>v Ht J . fhf litf-O —k to- Jt • -O 1 j »—° NOT* Ot !*<■• s A*n a/to*, ■• -¥. rwamn t tns/ ■tj 4» *■■•■<■ «j *« fi*-*t* oon tfS. J . gb* too fa h tight tkv »# Sef » • J33 SoJ, Oopt-e Tf*&ts\ O* ii ** levt* ?, sot?/a s. 2 rattn/A 3 FOXf VIA* S- t\#T a f* 5 - /latin ^C*?& emrSfrwsstnef if tpt hg - L b fHM*eJ*r /oa E/ P \ *K*th .-■v »t -n - Thickn, troft o*rfvs\Krt**: p»r 3•n sar/frtTS wing\ .-yy ..- -O ,*v 7*e/<** ■ Ml ..- -iPtlC*TiOl*S FIG. 1. FIG *i ooHtTbtaf Saf • Stt • -f s * 1. O final *Aerctrcra* ■aiy U *S* ef 1 rtaafLa —■ z fwctn PB too** a tK f,t - o Sfirino forPrwa&vi-* ta Ban* *c Sana-■yJMn to 9* 2 7« tee l oen p * Knew] CUff. J I /^ I 1\ f\ i * 1 | — !• M •w 7ft * 4 Ttftf ■ $ mrs*. |MC* » o**prv*y K Cor* v 3 ir»rw**i r *S» (if- fi *,- * * aft t C rt ttnraf : gam *3 ** tftfArt-1 i +? 3ar*t jv ~ — X- ■ ■ °*r-l r SOA>£ If fOL SOS. it «v FIG 3. FIG 4. Number of springe per -<■( i Number f platea per spring 9 Style of spring Double elliptic During the first six tests the loads were gradually appliedand released by a screw testing machine, traveling at the rateof 3 ins. per minute. But in the last test, as shown by curveC i Fig. 5), an hydraulic testing machine was used. Theweight-beam was so adjusted that the load could be partiallyreleased, and then suddenly forced band to band by movingthe lever up and down by hand. For the use of th
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
