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On the axle of each of these rollers is keyed a circular eccentric cam plate, those at the same side being connected together by a linking bar so as to move in concert.
It fell through the crack of the wagon, dripping upon the axle, and spotting the road with terrible wafers. It stained the planks, and soaked the blankets; and the old negro, at a stoppage, dabbled his hands in it by mistake; he drew back instantly, with a shudder and stifled expletive, "Gor-r-r, dat'll never come off in de world; it's murderer's blood."
A. The axles bear only against the top of the axle boxes, which are generally of brass; but a plate extends underneath the bearing, to prevent sand from being thrown upon it. The upper part of the box in most engines has a reservoir of oil, which is supplied to the journal by tubes with siphon wicks.
A. The locomotive employed to draw carriages upon railways, consists of a cylindrical boiler filled with brass tubes, through which the hot air passes on its progress from the furnace to the chimney, and attached to the boiler are two horizontal cylinders fitted with pistons, valves, connecting rods, and other necessary apparatus to enable the power exerted by the pistons to turn round the cranked axle to which the driving wheels are attached.
The stock consisted of cheap pottery, tobacco, matches, boot grease, and axle grease. These he bartered for country produce, including grains in small quantity, bristles, rags, and bones. Money was seldom handled in these transactions.
"Some say He bid His angels turn askance The poles of Earth some ten degrees or more From the sun's axle; they with labour pushed Oblique the centric globe,... ...to bring in change Of seasons to each clime; else had the spring Perpetual smiled on Earth with verdant flowers, Equal in days and nights."
The higher the axle is set, the nearer the pole is to being level, the less power is wasted on that upward pull and the more is utilized on the forward pull and goes to produce speed.
If, therefore, by the first impulse, the axle is thrown upward to any sensible distance, it will immediately fall back again, once more confining more or less completely the water. After one or two oscillations, therefore, the axle will settle itself at length in a position in which, while the water will escape, it will escape but as a film of inappreciable thickness.
Clara J. came out on the porch and said, "John, perhaps that lawn-mower would stop screaming if you used a little axle grease!" "All right," I came back at her, "but it will take me an hour and a half to find out which part of the lawnmower will fit the axle grease."
It is obvious enough, that such a connection may be made between the tender and the engine, that either the fore or hind axle of the engine may be taken away, and yet the engine will not fall down, but will be kept up by the support which the tender affords; and the arguments hitherto paraded against the four-wheeled engines are, so far as regards the question of safety, nothing more than arguments against the existence of the suggested connection.
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