extent, to the plane of the horizon, while its mountings move in various direc- cessary. The operation of the machine may now be readily followed. tions, as influenced by the motion of the ship. Steam being admitted into the small cylinder or piston head.A, the latter will be drawn in one direction… … derneath the compass box, working in a socket fixed at the the main cylinder next adjacent to the end of the same to- top of a conical support. The pendulum is about two feet ward which the piston head has advanced. It will be ob in length, and is attached to the small ball, which has thus served…
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