 | American Railway Engineering Association - 1914 - 1224 pages
...defined as follows : Having the following characteristics showing on the cross-section and appearing in the third, fourth and fifth inches of a radial line from the pith or heart center. An average of eight annular growth rings per inch, provided that in the greater number... | |
 | 1916 - 806 pages
...shall show at least one-third summer wood, all as measured over the third, fourth, and fifth inches on a radial line from the pith. Wide-ringed material...wood as above measured shall be at least one-half. (i) The contrast in color between summer wood and spring wood shall be sharp and the summer wood shall... | |
 | 1916 - 1826 pages
...should show at least one-third summerwood, all as measured over the third, fourth and fifth inches on a radial line from the pith; wide-ringed material excluded by this rule is acceptable, provided the amount of aummerwood, as above measured, is at least one* half; the contrast... | |
 | Lionel Simeon Marks - 1916 - 1922 pages
...should show at least one-third summerwood, all as measured over the third, fourth and fifth inches on a radial line from the pith; wide-ringed material excluded by this rule if acceptable, provided the amount of summerwood, as above measured, is at least onehalf; the contrast... | |
 | 1919 - 382 pages
...pith to the corner of the piece. Wide-ring material excluded by the above will be accepted provided the amount of summer wood as above measured shall be at least 50 per cent. In cases where timbers do not contain the pith, and it is impossible to locate it with... | |
 | United States Shipping Board Emergency Fleet Corporation - 1918 - 40 pages
...summer wood, or else the greater number of the rings shall show at least one-third summer wood, all as measured over the third, fourth, and fifth inches...in color between summer wood and spring wood shall bo sharp and the summer wood shall be dark in color, except in pieces having considerably above the... | |
 | 1918 - 992 pages
...shall show at least one-third summer wood, all as measured over the third, fourth, and fifth inches on a radial line from the pith. Wide-ringed material...wood as above measured shall be at least one-half. (388) (6) The contrast in color between summer wood and pring wood shall be sharp and the summer wood... | |
 | American Railway Master Mechanics' Association - 1918 - 834 pages
...radial line from the pith. Widesringed material excluded by this rule will be acceptable, provided tlmt the amount of summer wood as above measured shall be at least oneshalf. The contrast in color between summer wood and spring wood shall be sharp, and the summer... | |
 | Arthur Horace Blanchard - 1919 - 1710 pages
...wood, all аз measured over the 3rd, 4th, and 5th in on a radial line from the pith. Wide-rin^fc« material excluded by this rule will be acceptable,...of summer wood as above measured shall be at least oüf-half. The contrast in color between summer wood and spring wood shall be sharp and the summer... | |
 | Arthur Horace Blanchard - 1919 - 1720 pages
...summer wood, all as measured over the 3rd, 4th, and 5th in on a radial line from the pith. Wide-rinxf- material excluded by this rule will be acceptable, provided that the amount of summer wood us above measured shall be at least oiir-half. The contrast in color between summer wood and spring... | |
| |
... measured over the third, fourth, and fifth inches of a radial line from the pith. Wide-ringed material excluded by this rule will be acceptable, provided that the amount of summer wood as above measured shall be at least one-half. 
