The cylinder-end cover should be left until the piston-rod and piston are made.
But that's only when the man at the head keeps his finger on the piston-rod.
They usually are more or less imperfect, guiding the piston-rod in a line only approximately straight.
The motion of the piston-rod backwards and forwards turns such a winch.
A chain from the piston-rod to the arch head, as described in the single-acting engine, would fail to transmit this force.
The piston-rod and connecting-rod were to be straightened, and this was a job for a regular dockyard with every appliance.
Close the extractor around the piston-rod and insert the locking-pin.
Another equal-toothed wheel M is turned by a crank, which is worked by the other end of the cross-arm attached to the piston-rod.
The air thus set free by the gyroscope drives a piston-rod connected with a rudder in such a way as to right the torpedo.
Here a latch E catches the piston-rod H and holds the piston up until it is time for it to descend.