lunger in an oil cylin- BOXES. der H. The plunger in the latter cylinder is provided The invention which we illustrate herewith shows with a valve, which permits the oil in the cylinder H an improved method of connecting the ends of pipes to flow freely through perforations in the plunger to… … at D, while on the opposite side is the projection G. effected readily. The mechanism is carried in a flume COMBINED NUT LOCK AND BUSHING FOB CONNECTION The spike is designed to take advantage of the resili- which is lowered into the moving water. On the up- BOXES. ence of the wood of the tie G. It…
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-579-354.webp)
