542 INQUIRY INTO THE STRENGTH 
No. V. 
WELSH IRONS. 
Ystalyfera Anthracite, No. 1, Pig Iron, Hot Blast. 
Experiment 1st. race eles tn Experiment 3rd. 
Depth of bar........ 1.035]|Depth of bar.. .035| Depth of bar ...... 1.027 
Breadth of do ...... 1.050}|Breadth ofdo ...... 1.053] Breadth of do ...... 1.048 
Distance between Distance between 
supports 4ft 6in|| sup Rports eevee re 4ft 6in POLES Joe cana las 4ft 6) 
Weight of bar 5 feet long,|| Weight of bar 5 feet long, i 
15lbs 140z 15lbs 150z' bs 
Bo Se Beira fesse ey Se lege 
a 83 | 82 A 68 | 32 A | 88] 22 
P=] 65 go = Ss O63 = oa oF 
rs $8 ae io $8 eH Sb Ss | a 
D a" a3 Oo qe Aas D gc s3 
a te Re ae 3 e | Ag 
Pat: Se ee ae Siete 
28 | .075 28 | 073 | + 28 | 075} + 
56 | .155 | .012 
112 | .338 | .032 
224 | .760 | .095 
336 {1.285 | .216 
392 |1.610 
448 |2.000 | .480 
473 
56 | 152") =f 56 | .152 | .012 
112 | .320] .024 || 112 | .333 | .040 
224 | .728] .090 |} 224 | .730 | .113 
336 11.240 | .205 
392 11.550 | .300 
448 |1.910| .442 
476 |2.105 
501 |broke 
.". Ultimate deflection, 
279. 
.’. Ultimate deflection, .’. Ultimate deflection, 
2.090. =2.174. 
