[BovEY ] A NEW EXTENSOMETER 9 



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DE Ÿo Ces DOTE /77. 
À X Loaa af te IOI ES, ELC/I 
20" from cerlre af bearz 
La » rk N°” 
Ton Aénsion 20001 -57 7 % $ 
Fo COSPT 
Table showing mean strains in 5.1-in. X 3.48-in. red oak beam, under 
two different systems of loading. 
Compressive strains + 
Tensile ae _ 
Extensometers 1.1-in. c. to c. 
The strains are, in each case, the means of four observations. 
TOTAL STRAINS AT DIFFERENT POSITIONS OF EXTENSOMETERS, IN MILLIONTHS 
OF AN INCH. 
Load. I. IT. III. NV Wh 
r 000 000000 000000 000000 000000 000000 
8 300) TON 666) 1 AST = 29201 1) 2.41706 
3 e001") M MU 2) 300) = aged 1 gaa 
z | 000 + Apap = noel = ate) 61 = S005 
xs 
8 1200. (+ 5240 + 2589 - 598 | 22417 = 646 
16000 7 9-G410 4 4 3179 0 5) Ges | Sy 4220, 6 7006 
A 000 000000 000000 000000 000000 000000 
a | A00N), Te 0 ihe asd vies i 4oson = EAU Ne 00 
Bs BOOM or as wi. F680") ates, © 13020 
38 1200, + 4072, 2 1873 0 2 77 =. 030 10 5587 
2 1600 + 5302 + 2588 - 984 -— 3883 — 7258 
SANT CSS Nr | ae 
