Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 594
it is intended to prevent the passage of steam at the breaksof the segment, instead of the common method of using two rings, each of half the thickness, with thejoinings of the one ring placed midway between those of the other. We believe this construction hasbeen found to answer perfectly; but… … Scale.—1 inch=l foot. Fig. 1537 represents plan and section of a piston, differing from the above in having only one wedgeand break in the ring instead of four. The set screw, on the side farthest from the wedge, might beomitted; the two side-screws serve in some measure to compensate for the…
Mechanical engineering
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