Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 332
maller than is the case with the Stephenson link. The Allen and Gooch links bothrequire a great deal of space, to enable the eccentric and valve rods to be of the proper lengths, andthis is their great disadvantage. The Heusinger von Waldegg (also known as the Walshaert) valve-motion is used on the… … the axle vertically to the crank (without the angle of advance), by means of the eccentric-rod 0 c,imparts its motion to a link pivoted at its centre L. A block B can be moved in the slot of the linkby means of the hanger C B, attached in the usual way to the reversing shaft A. The block isjoined…
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