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There is practically no play between the teeth, but there exists a small annular clearance between the periphery of the heads and the inside bore of the sleeve, which allows a slight lack of alinement to exist between the two spindles, without any strain whatever being felt by the coupling sleeve E. The nuts F and G prevent any lateral movement of the coupling heads C and D. For all practical requirements this type of coupling is satisfactory, as the clearances allowed between sliding sleeve and coupling heads can always be made sufficient to accommodate a considerable want of alinement, far beyond anything which is likely to occur in actual practice.
Obviously the fit between the coupling and spindle in this case must be close, otherwise considerable wear would take place; and equally obvious is the fact than any want of alinement between the two spindles A and B will be accompanied by a severe strain upon the coupling, and incidentally by many other troubles of operation of which this inability of the coupling to accommodate itself to a little want of alinement is the inherent cause.
At Kilkis so rapid was the advance of the Greek infantry that the Bulgarian gunners could hardly alter their ranges sufficiently fast, and every time that the Greek infantry had made good five hundred yards the Greek artillery would gallop forward and come into action on a new alinement. It was a running fight.
The desire of turbine manufacturers has consequently been to design a flexible coupling, capable of accommodating a certain want of alinement between the two spindles without in any way affecting the smooth running of the whole unit.
The traveler of a generation ago over this particular section of the Santa Fe lines might have felt that there was some truth in this criticism; but the Atchison has long since cut out these idiosyncrasies of early construction, and the main line in this section of New Mexico is now noted for alinement and absence of curves and grades.
"When it is in perfect alinement the letter occupies the middle of each square and when out of alinement it may be in any of the four corners, or either side of the middle position or at the top or bottom above or below the middle. That, you see, makes nine positions in all or eight possible divergences from normal in this particular alone."
"In ordinary typewriting," replied Craig, "each letter occupies an imaginary square, ten to the inch horizontally and six to the inch vertically. Typewriting letters are in line both ways. This ruled glass plate is an alinement test plate for detecting defects in alinement.
How else explain the alinement of the cubes behind the Keeper against the globes and pyramids remaining loyal to the will of the Disk? We discussed this, Ventnor and I. "This world," he mused, "is a place of struggle. Air and sea and land and all things that dwell within and on them must battle for life. Earth not Mars is the planet of war.
These questions were not party issues at first, and there was no clear-cut division upon them between the two old parties throughout the period. The alinement was by class and section rather than by party; and inflationists and advocates of the redemption of the bonds in currency were to be found not only among the rank and file but also among the leaders of both parties.
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