Riveted joints.general remarks.- riveting has been the standard method of joining plates and structural parts before welding began to replace it with increasing rapidity.rivets.-a rivet is a round bar consisting of an upset end called the head, and a long part called the shrank. the rivet blank is heated to a red glow, inserted into one of the holes , and, while the head is held firmly against the plate by a heavy sledge, the projecting end is formed into a second head, called the point, by means of a hand hammer and set or by a press.button heads are used for small rivets which are driven cold; pan heads are used chiefly in ship work; countersunk heads are used only in special cases, chiefly in structural work and below the water line in ships; the countersunk points weaken the plate so much that they should be used only when unavoidable; the others, including button heads, are used in boiler and structural work.2. выпиши из текста предложения с глаголами в форме причастия, герундийского или сослагательного наклонения.
