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The only difference between the apparently useless old lumber and scrap iron, piled together in promiscuous confusion, machinery thrown into a heap without the arrangement, and the new building with its powerful engine working smoothly and swiftly for the comfort and wealth of men, was that before the rebuilding, the wheels, the saw, the shafting, boilers, piston-rod, and fly wheel had no definite relation to each other.
The present weather is in our favor, so do not leave the cottage empty day or night for a few weeks." Geoffrey concealed his letter, ate his breakfast when the six o'clock bell rang, and the bolts of five hundred cells shot back by one mighty stroke of a steam piston-rod, he paraded with his companions, and the four were marched off to their work at the monument.
The massive walking-beam rose and fell above the deck; at one end a piston-rod worked up and down; and at the other was a connecting-rod which, in changing the rectilinear motion to a circular one, was directly connected with the shaft of the paddles. The General Grant was rigged with three masts, giving a large capacity for sails, and thus materially aiding the steam power.
And the platform is moving around for a new load. Take the development of the piston-rod assembly. Even under the old plan, this operation took only three minutes and did not seem to be one to bother about. There were two benches and twenty-eight men in all; they assembled one hundred seventy-five pistons and rods in a nine-hour day which means just five seconds over three minutes each.
Ay, indeed! The coal in the furnace, burning passively and hotly, is as much a force, though it but lies and suffers, as the energy that throbs in the leaping piston-rod or the rushing wheel.
Then they came so close that their hoofs echoed as loudly as when horses gallop over a bridge, and from among the leaders Siren's beautiful head and shoulders showed like sealskin in the sun, and the boy on her back leaned forward and touched her gently with his hand, as they had so often seen him do on the downs, and Siren, as though he had touched a spring, leaped forward with her head shooting back and out, like a piston-rod that has broken loose from its fastening and beats the air, while the jockey sat motionless, with his right arm hanging at his side as limply as though it were broken, and with his left moving forward and back in time with the desperate strokes of the horse's head.
The burning of Troy probably seemed a large-sized conflagration to the pious Aeneas, and made an impression on him which he carried away with the feeble Anchises. In the centre of the room, lightly brandishing the piston-rod of a steam-engine, stood Guy Heavystone alone. I say alone, for the pile of small boys on the floor in the corner could hardly be called company.
Here he hesitated for a word, and I, although I knew nothing about the matter, helped him out with suggestions in the same rhetorical vein. "Or a button-hook," I said, "or a blunderbuss or a battering-ram or a piston-rod " He resumed, refreshed with this assistance, "Or a curtain rod or a candle-stick, or a "
When the expansive burst of the vapour confined within the cylinder of the condensing steam-engine thrusts upwards the piston-rod with its mighty beams, it is simple weight the weight of the superincumbent transparent atmosphere that crushes the metal back with antagonistic force.
The rectilinear motion of the piston-rod was thus converted into rotary motion. Mr. Miller was pleased with the action of the ratchet-wheel contrivance, and gave Symington an order to make a pair of engines of that construction. They were to be used on a small pleasure-boat on Dalswinton Lake.
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