Engineering and Contracting . In 8,818 7 -in 8 -In 18,102 n -in 24,300 10 -in 31,623 ?;-ln. L. P 31 Directions for Using Table.—To find the size of piperequired to supply a number of smaller pipes, it is onlynecessary to add the proportionate capacities of all thepipes to be supplied. The pipe required will be the sizehaving the same, or a greater capacity. For example: To find the size pipe required to supply five %-in., fourVa-in., two %-in., four 1-in. and one Ii-in. pipes, add: 5 X 18 = 90 4 X 28 = 112 2 X 57 = 114 4 X 100 = 400 1 X 232 = 232 94S The size required is 22-in., which e
Engineering and Contracting . In 8,818 7 -in 8 -In 18,102 n -in 24,300 10 -in 31,623 ?;-ln. L. P 31 Directions for Using Table.—To find the size of piperequired to supply a number of smaller pipes, it is onlynecessary to add the proportionate capacities of all thepipes to be supplied. The pipe required will be the sizehaving the same, or a greater capacity. For example: To find the size pipe required to supply five %-in., fourVa-in., two %-in., four 1-in. and one Ii-in. pipes, add: 5 X 18 = 90 4 X 28 = 112 2 X 57 = 114 4 X 100 = 400 1 X 232 = 232 94S The size required is 22-in., which equals 988. Had thesquares of the diameter of the various pipes been taken,a pipe larger than actually required would have beenindicated. NEW STANDARD VERTICAL STAFF GAGE OF NEW YORK STATE ENGINEERS DEPARTMENT. The accompanying illustration shows the new standardvertical gage staff of the New York State Engineers De-partment. This staff will replace those now in use. Itshows directly actual elevations above Barge Canal datum. New York standard Vertical Staff Gage. (sea level). The gage plate sections are 4 ft. long, andthe gage and numerical plates are fastened to timber withNo. 9, 1-in. round head brass screws. The gage was de-signed by G. E. Gibson, assistant engineer. 326 AN EMERGENCY GANG IN A WATER SERVICE.* By Georye 11. The tools essential to the efficient operation of anemergency force are as follows: Heavy wrenches for the operation of large usually are made with detachable handles. T-handles are used in some cases and crosses or four-armhandles are used in others. The latter kind allows of amore continuous movement; it allows each man to applyhis force more directly and with less wasted energy thanwith the T-handle, where hand room is limited and themen are more crowded in their movements. More lever-age can be obtained with either handle by the use ofextensions in the form of short pieces of iron pipe, orhand spikes set into sockets on the ha
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