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And in the stern is that box with the piston-rod in it. I'd have hated to lose that, after all this fuss. Things might have turned out a good deal worse, eh, Perce? But the next time I'll know enough to hang up at Seal Island." Jim's cheerfulness was contagious. Percy felt better.
As the pendulum moves it throws one or more of these piston-rod ends into contact with the inner surface of the ring, driving it into the compressing pump. At the top of the pendulum there is a double or universal pipe-joint through which the air under pressure is driven to the reservoir, and by which the apparatus is also hung. This is the simplest, and in some respects the best, form.
By pressure the fluids are mixed and the pores are closed. A stuffing box filled with this mixture has worked three years without grinding the piston-rod. In the same manner I close the screw-thread hole in gas tubes used for conducting steam. When the tube is screwed in the socket, the powder mixes with the oleic acid. The water coming in at first makes the linseed powder viscid.
The pneumatic hammers had a crank, with a connecting rod or a slotted crossbar on the piston-rod, a piston and a cylinder which formed the hammer-head.
Cut out and bend the standards after drilling the holes for the foot screws before measuring off for the centres of the holes; in fact, follow the course laid down with regard to the cylinder standards. Make a bold scratch across the bedplate to show where the centre line of the shaft should be, and another along the bed for the piston-rod centre line.
Fawdor, said he coldly, spreading out a map on the table before him, 'you will start at once for Fort Ungava, at Ungava Bay, in Labrador. I felt my heart stand still for a moment, and then surge up and down, like a piston-rod under a sudden rush of steam. 'You will proceed now, he went on, in his hard voice, 'as far as the village of Pont Croix. There you will find three Indians awaiting you.
Two men squat upon the platform and each works one pair of the cylinders, grasping a piston-rod in each hand, thrusting them down alternately, and allowing the elastic reaction of the supporting rods above to draw them up again. The crucible, having been brought to white heat in the furnace, is allowed to cool, when a mass of metallic iron or steel is found within it.
Her engineer, Mr. Campbell, was in the act of giving some final touches to the machinery, when his leg was caught between the piston-rod and frame of one of the oscillating engines, with such force as to bend the rod, which was an inch and a quarter in diameter and about eight inches long, and break its cast-iron frame, five-eighths of an inch in thickness.
The day following our drive to Krugersdorp we left for Cape Town and England. We made the voyage on the old Roslin Castle. Always a slow boat, she had on this occasion, in sporting parlance, a "wing down," having broken a piston-rod on her way out from England, when we had vainly awaited her at Cape Town, and I think it was nearly three weeks before we landed at Plymouth.
He waved a hand jauntily to the ropers. The lariats were thrown off as the puncher swung to the saddle. For an instant the buckskin stood bewildered, motionless as a statue. There was a sudden leap forward high in air, and Bob Austin, alias "Texas," swung his sombrero with a joyous whoop. "Fan him! Fan him!" screamed the spectators, and the rider's quirt went up and down like a piston-rod.
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