Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co. · leaf 91
of one of the pipes is turned into the form of a sphereor globe, and the end of the other pipe is formed intoa corresponding concave shape, as shown in Fig. 34,This form of joint permits a lateral movement ineither direction of the lower end of pipe 2 to bring itin line with the upper end of pipe…
Locomotives
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