COPPER CYLINDERS FOR PRESSURE GAUGES. 459 Mean compression of 10 cylinders from Frankford Arsenal. Metal purchased November, 1900. Table for use with crusher gauge one-tenth square inch area. Mean dimensions of cylinders: Length, ".4995; diameter, ".2516. Load per square Total compressions. inch on crusher cor- gauge * rected square 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Mean sets. area. Pounds Inch. Inch. Inch. Inch. Inch. Inch. Inch. Inch. Inch. Inch. 3,000 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 6,000 .0042 .0040 .0040 .0035 .0040 .0039 .0042 .0015 .0046 .0037 .0038 .0036 9,000 .0146 .0143 .0147 .0140 .0140 . 0142 . 0145 .0117 .0150 .0139 .0141 .0136 10,000 .0185 .0182 .0178 .0174 .0183 . 0182 .0186 .0160 .0181 .0174 .0179 .0173 11,000 . 0224 .0220 .0215 . 0215 . 0215 . 0226 .0226 .0193 .0219 .0217 .0217 .0211 12,000 .0264 .0260 .0259 .0251 . 0260 . 0265 .0266 .0235 .0260 . 0254 . 0257 . 0250 13,000 .0305 .0305 . 0298 . 0294 .0303 .0305 .0310 .0278 .0300 .0294 .0299 . 0291 14,000 .0354 .0343 .0340 .0339 .0342 .0349 .0346 .0316 .0345 .0339 .0341 .0332 15,000 .0390 .0385 .0386 . 0375 .0381 .0385 .0396 .0356 .0390 . 0382 .0383 .0373 16,000 .0435 .0430 .0429 . 0421 .0429 . 0430 .0438 . 0402 .0435 .0423 .0427 .0416 17,000 . 0491 .0472 .0475 .0464 . 0472 .0480 .0483 .0446 . 0475 .0470 .0473 . 0462 8,000־1 .0528 . 0522 . 0526 .0510 . 0520 . 0521 .0530 .0489 . 0526 .0515 .0519 . 0508 19,000 .0572 .0565 .0572 . 0554 .0565 .0569 . 0578 .0532 .0575 . 0563 . 0565 .0554 20,000 .0619 .0614 .0618 . 0595 .0615 .0619 . 0629 .0589 .0624 .0610 .0613 . 0602 21,000 .0670 . 0658 .0664 . 0645 . 0665 .0668 .0675 .0639 .0670 .0658 .0661 . 0650 22,000 .0718 .0711 .0719 .0693 .0709 .0715 .0724 .0688 .0718 .0710 .0711 .0700 23,000 .0770 .0765 .0761 . 0745 .0763 .0768 .0770 .0736 .0770 .0757 .0761 . 0750 24,000 . 0815 •0814 .0813 .0795 .0805 •0820 .0826 .0785 .0820 .0810 .0810 . 0798 25,000 .0870 .0863 .0860 . 0840 .0860 .0860 .0869 .0838 .0870 . 0856 . 0859 .0847 26,000 .0918 . 0915 .0908 .0900 .0914 . 0920 .0920 . 0885 .0920 .0912 .0911 . 0899 27,000 .0976 .0969 . 0965 .0941 .0961 . 0966 .0976 .0947 .0971 .0970 .0965 .0953 28,000 .1022 .1020 .1020 .0994 .1010 . 1027 .1026 .0995 .1028 .1012 . 1015 .1003 29,000 .1088 . 1072 .1071 .1051 .1069 .1068 .1084 .1048 .1078 . 1065 .1069 .1057 30,000 .1128 .1125 .1119 .1100 .1120 .1126 .1127 .1098 .1130 .1112 .1118 .1106 31,000 .1181 .1175 .1179 .1160 .1175 .1179 .1180 .1146 .1190 . 1159 .1172 .1161 32,000 .1246 .1230 . 1225 . 1210 . 1220 .1233 .1230 .1197 .1235 .1235 .1226 .1214 33,000 .1288 . 1286 .1277 . 1265 .1289 .1282 . 1290 .1259 .1287 .1271 .1279 . 1267 34,000 .1341 .1340 .1335 .1309 .1336 .1345 .1340 .1308 .1345 .1328 .1333 .1321 35,000 .1396 .1393 .1386 .1373 .1385 . 1385 . 1396 .1364 .1394 .1385 .1386 .1372 36,000 .1450 .1445 .1430 .1420 . 1443 .1440 . 1445 .1411 . 1452 .1435 .1437 .1423 37,000 .1506 .1498 .1475 .1475 .1490 .1488 .1498 .1468 .1493 .1489 .1488 .1474 38,000 . 1558 . 1550 .1537 .1532 .1540 .1544 .1550 . 1530 .1563 .1543 . 1545 .1531 39,000 . 1615 .1604 . 1589 .1576 .1600 .1597 .1600 . 1576 . 1605 . 1585 . 1595 . 1581 40,000 .1668 .1663 .1644 .1631 .1648 .1658 . 1655 .1615 . 1655 .1646 .1648 .1634 41,000 .1719 .1710 .1698 .1679 .1698 .1694 . 1705 .1668 .1698 .1690 .1696 . 1682 42,000 .1761 .1759 .1742 .1732 .1742 .1754 . 1750 .1723 . 1755 .1748 .1747 . 1733 43,000 .1822 .1808 .1801 .1786 .1794 .1794 .1799 .1771 . 1798 .1794 .1797 .1783 44,000 .1874 .1859 .1844 ,1834 .1847 .1850 .1855 . 1826 .1847 .1843 .1848 .1834 45,000 .1925 .1910 .1891 .1878 .1891 .1890 .1904 .1878 .1895 .1891 .1895 .1881 46,000 .1971 . 1952 .1936 . 1932 .1943 .1944 . 1945 . 1925 . 1950 .1937 .1944 .1930 47,000 . 2026 . 2005 .1990 .1980 .1994 .1994 .1994 .1970 .1993 . 1992 .1994 .1980 48,000 . 2066 .2058 . 2035 . 2031 . 2043 . 2033 . 2050 .2015 .2037 .2036 .2040 . 2026 49,000 .2105 . 2095 .2078 .2076 . 2085 .2085 . 2090 .2058 .2085 .2080 .2084 .2070 50,000 .2149 . 2143 . 2125 .2119 . 2128 . 2125 .2130 .2105 .2125 .2118 .2127 .2113 51.000 .2194 . 2181 . 2164 . 2163 .2173 . 2165 .2176 .2148 . 2168 .2161 .2169 . 2155 52,000 .2233 . 2222 . 2210 . 2200 . 2211 .2211 .2215 .2183 .2210 .2210 .2211 .2197 53,000 . 2275 . 2264 . 2248 .2245 .2256 .2251 .2255 . 2230 .2255 .2250 .2253 .2239 54,000 .2310 . 2306 . 2284 .2278 .2289 .2288 .2290 . 2268 .2285 .2284 .2288 .2274 55,000 .2346 . 2345 . 2322 . 2320 .2330 .2324 .2333 .2302 .2329 .2323 .2327 . 2313 56,000 .2377 .2374 . 2362 . 2350 . 2368 . 2362 . 2365 .2346 .2364 .2360 .2363 . 2350 57,000 .2423 . 2415 . 2398 .2388 . 2404 . 2399 . 2403 .2379 .2399 .2400 .2401 . 2388 58,000 . 2452 .2450 . 2429 . 2424 . 2435 .2432 • .2434 .2416 .2430 .2424 .2433 .2420 59,000 .2488 .2476 .2465 .2455 . 2471 .2470 .2475 . 2448 .2465 .2465 .2468 .2455 60,000 .2521 . 2515 . 2500 .2490 .2502 .2498 .2498 .2479 .2496 .2495 .2499 .2486 61,000 .2550 . 2568 .2530 .2530 .2535 . 2530 .2531 .2511 .2528 .2523 .2534 .2521 62,000 . 2578 . 2603 .2560 .2550 .2564 .2560 . 2568 .2540 .2560 . 2556 .2564 . 2551 63,000 . 2606 .2628 . 2590 .2580 .2595 .2588 .2594 .2569 .2589 .2589 .2593 .2580 64,000 .2639 . 2658 . 2619 . 2610 . 2625 .2622 .2628 .2600 .2612 . 2615 .2623 . 2610 65,000 .2663 .2670 . 2645 . 2635 .2648 . 2639 .2650 .2628 . 2648 . 2638 .2646 .2633 66,000 .2689 . 2682 . 2674 .2666 .2675 .2670 .2679 . 2650 .2670 .2670 .2673 .2660 67,000 .2714 .2712 .2703 .2690 . 2705 .2695 .2705 . 2675 .2699 .,2691 .2699 . 2686 68,000 .2741 .2742 . 2729 .2715 . 2730 . 2725 .2730 . 2705 .2724 .2719 . 2726 . 2713 69,000 .2764 .2760 . 2754 .2743 . 2758 . 2752 . 2756 .2729 .2748 .2741 . 2751 .2739 70,000 .2785 . 2784 .2780 . 2767 . 2779 .2774 .2780 .2754 . 2769 .2770 .2774 .2762 71,000 .2812 .2810 .2801 . 2790 .2805 .2802 .2805 . 2775 .2794 .2793 .2799 . 2787 72,000 . 2832 .2836 . 2823 .2816 .2825 .2823 .2825 .2802 .2818 .2814 . 2821 . 2809 73,000 . 2856 . 2857 .2848 . 2836 . 2849 . 2850 .2848 .2826 . 2845 . 2839 .2845 .2833 74,000 . 2877 .2878 -.2866 .2860 .2873 .2870 . 2869 .2845 .2864 . 2860 . 2866 . 2854