Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 62
obtained. (Ifound its weight to lie 4.4.) grains.) Now the height AB, in this case, was found to be81 pounds, we have the proportion 9.7: 4.45 :: 81 lbs.: 37.2 lbs.From which we conclude that the average effective pressure, as shown by the card, was-i7.~ lbs. per square inch. To find the area of… … Figs. 6 and 7.—Indicator Cards: Finding Area and Average Pressure. direct measurement, we find the length of the card to be 4.90 inches. Hence the area is4.90 x .93 = 4.50 square inches. (I tested this result by the planimeter, and found it tobe correct.) I send you one more example of the…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
