. Bulletin. Forests and forestry -- United States. 33 found which conospomlod (<• f;ivrii dptlfclions, -pouiiil universal or weighing machine, and then on the huge beam machine, nnd i)h«tting the. stress diagianis ohtaiiied froiii each, not only can tliese rnacliincs he compared with eacli other, but botii can l)e coini)ared or calii)rated with tiic Emery machine at the Watertown Arsenal. In Fig. 5 the three curves corresponding to tlu> three m;i,()(M)-poiind Kiehle machine correctly graduated, but that the method used of weighing the loads ou the beam machine by means of the universal m
. Bulletin. Forests and forestry -- United States. 33 found which conospomlod (<• f;ivrii dptlfclions, -pouiiil universal or weighing machine, and then on the huge beam machine, nnd i)h«tting the. stress diagianis ohtaiiied froiii each, not only can tliese rnacliincs he compared with eacli other, but botii can l)e coini)ared or calii)rated with tiic Emery machine at the Watertown Arsenal. In Fig. 5 the three curves corresponding to tlu> three m;i,()(M)-poiind Kiehle machine correctly graduated, but that the method used of weighing the loads ou the beam machine by means of the universal machine results in no appreciable error. This test can be api>lie(l at any time, and proof. Uellectiuu in iuclles. Kk;. 5.—. tests with oaliliiatiii;; spiinj^s. readings have been made at frequent intervals. The beam machine is greatly simplified by thus dispensing with all attached weighing apparatus, which would be greatly in the way in the handling of lai'ge l)cams sometimes weighing over 1,()(M) ])oun(ls. tSmoll hcama.—The small beams which are nominally I inches scjuare and (in inches long between supports are tested on the small beam-testing machine, shown on Plate iii. This machine was designed originally for testing cast iion beams, the load at one eml or one-half the load at the center being weighed on a i)air of ordinary i)latform scales. The deflections are read oil'to 17244—No. « .'5. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Division of Forestry. Washington : G. P. O.
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