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The shop man may not have properly set up the nuts on the valve-stems; or may have fitted the distance bushings between the shield plates too closely; the superheat of the steam may distort the steam chest slightly and produce friction that will interfere with the regulation. If any of the valve-stems should become loose in the cross-heads they may screw themselves either in or out.
For the rest, all things go on as usual; the miller grinds, the blacksmith strikes and blows, the cobbler and tailor stitch and mend, old men sit in the autumn sun, old gossips stir tea and scandal, revival meetings alternate with apple-bees and bushings, toil, pleasure, family jars, petty neighborhood quarrels, courtship, and marriage, all which make up the daily life of a country village continue as before.
They seem to aid the lower guide-bearing in keeping the machine rotating about the mechanical center and reduce the wear on the guide-bearing. In some instances, too, cast-iron bushings have been substituted for bronze, with marked success. There seems to be much less wear between cast-iron and babbitt metal than between bronze and babbitt metal.
They are free fits on the pins which pass through the heads, and no friction is likely to occur which will interfere with the regulation, but too close work on the shield-plate bushings, or a slight warping of the steam chest, will often produce friction which will seriously impair the regulation.
After the length of the bushings is corrected the shield-plates may be assembled, made fast and tested by rocking them up and down, searching for signs of sticking. If none occurs, the work has been correctly done, and there will be no trouble from poor regulation due to friction of the shield-plates. The Baffler
The buckets, at 4 foot centers, have a struck capacity of 5 cubic feet, and are speeded to deliver from 18 to 20 a minute, according to the character of the material being handled. They are of boiler iron, with a 5 in. steel nosing. The links are of wrought iron, with cast bushings. The lower tumbler is hexagonal, on a 4 in. shaft.
The last great improvement in connection with the screw remains to be noticed, namely, lining the "bushings" and "bearings" with lignum-vitae, the invention of Mr. Penn, of Greenwich, near London. The lignum-vitae is introduced in the manner shown in the drawing.
Gettridge is a social assassinator belongs to a regular Mafia of mischief-makers and old cats you know you used to care once." "Oh, I did, Morty, I did. It nearly broke my heart, and I just wanted to throw myself away become a trained nurse or go in for settlement work!" "Couldn't it ever be as it used to be?" "I should want all the bushings of phosphor bronze."
If the plates separately are found to be perfectly free they may be each one pushed hard over to the right or left and wedged; then each bushing tried in the space between the tail-pieces of the plates. It will probably be found that the bushings are not of the right length, due to the alteration of the form of the steam chest by heat.
But the infant moans and tosses with a nameless want and anguish, While, with coarse, unmeaning bushings, louder sings the hireling nurse, Knows no better, in her dull and superannuated blindness, Tries no potion, seeks no nurture, but consents to worse and worse.
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