4/82 6, where the scarf is tabled; or cross strain as in No.7.No.4 is used in house sills and in splicing out short posts, Nos. 5 and 6 in open frame work._No.7_ with or without the fish-plate, is used in boats and canoes, and is sometimes called a boat-builder's joint, to distinguish it from No. A joint to resist cross strain is stronger when scarfed in the direction of the strain than across it.No.7 is the plan, not elevation, of a joint to receive vertical cross strain. 264, is made by inserting, with glue, dowel-pins into holes bored into the two members. |