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A Car Wheel and Axle
A wrench especially designed for turning the nuts on fishplates is shown herewith, Fig. 1 representing the wrench as applied on the rail, and Fig. 2 giving a side view. It is so constructed, it will be seen, as to turn two nuts at the same time. The main lever bar has a slot, and on the lower end a squared recess for receiv ing the nut; from this bar also projects a stud or pin, and a bolt through the slot holds another lever bar, curved as shown, and having on its lower end a squared GOODSON'Sdoi:10.1038/scientificamerican09051885-146b fatcat:ec6dti3z3fbxdakimmzbigz6uy