propellers, both shafts thereof spring, and then the other rack bar to compress the ing successive fields of view, upon and around the great other spring, the rack bars being held to retain the being operated by one engine, and also doing away springs under compression until It Is desired to… … peller is directly transferred to the other shaft that has not yet been worked out, nor do we THE CLARKE ENGINE. through the crank arms, pitmen, and slide, and see any rational attempts to solve the problem. the other propeller is caused to do all the work. Can it be that it is insoluble? Or is it…
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