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40. . LAKE SHIP YARD METHODS OF STEEL SHIP CONSTRUC- TION. BY ROBERT CURR. Fig. 20 shows side stringer fitted. in- tercostally between the web frames. This arrangement is the latest on the great lakes, the connection to the web frame being made as strong as at the weakest part of the stringer. The weakest part of this stringer is through the line of holes punched for Tae Marine heview channel marked K at runs from. the ship side to the tank side plating being a brace from the frame to the tank side. There are three rivets through this channel which connects the intercostal C and channel. K together. The tensile strength of the str:nger channel B minus the rivet holes for channel brace equals 154 tons. - The intercostal C is connected to the frame with a clip M which has three rivets 34-inch diameter then 154 + -36 fo, rivets equals 190 tons. 190 ---- = 16 rivets. 12 It is necessary to connect the chan- nel B to the web frame with 16 rivets 34-in. diameter to obtain the strength of the weakest section of side stringer, This connection is governed by the area of section of the channel B and must. not be less in any case. ie --SreNGER-- 5 === a CHANNEL BF 2G al Desig aie Ga NOS be ea aeRO ck a i see a ean