Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 422
note: a band seat to be turnedtruly cylindrical andband securely shrunk on b corners to be roundedoff as shown , Fig. 973. … sisting of two parts, one part having a turned spherical section riveted to thesti-aight pipe; the other part is a socket, on the inside of which are two U-shaped sections, one riveted to the sheet-iron of the socket and the other to aflange fastened to another flange on the end of the socket;…
Mechanical drawing
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