The keys shown in Fig. 488 may have a brea<lth equal to l■^t-^ and a
thickness I'Sij, and the diameter of the bolt in this design may be -71^

244. Solid or Boi-End. — In the solid or box-end, shown in Figs. 489
and 490, the part corresponding to the strap in the preceding examples
ia made in one piece with the connecting-rod. It is obvious that since
the brasses in this design must enter from the side, they must be free
from flanges on one side except at one end, as shown in Fig. 489.
At the cross-head end of a connecting-rod, the space is often very limited,
and there is not sufficient room for an ordinary cotter. When this is
the case, the brasses may be secured by a wrought-iron or steel wedge-
ehuped block shown in Fig. 490. This block ia adjusted by a bolt
screwed into it. The same arrangeraeut niay bo used on a strap end, as




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CONNECTING-RODS.
