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by the obliquely arranged feedrolls a′ b c, journaled in pieces f f f, adjustable by screws, and passes between the large rolls B B, which straighten and round it, to avoid the necessity of turning it afterward.
See also patents for straightening shafting rods and bars: —
41,306.Lauth, Jan. 19, 1864.93,256.Warr, Aug. 3, 1869.
42,051.Sellers, Mar. 22, 1864.102,916.Cheney, May 10, 1870.
60,260.Safely, Dec. 4, 1866.128,335.Tasker, June 25, 1872.
65,242.Lander, May 28, 1867.149,065.Robertson, March 31, 1874.
65,832.Reese, June 18, 1867.155,760.Seaman, Oct. 6, 1874.
76,781.Lafarge et al, April 14, 1868.
Machine for straightening and rounding shafting.
The straightening of metallic plates is performed with the hammer or by rolling.
In the former case the work is the reverse of that of raising, in which the plate is stretched at the center and caused to assume a concave form.
In straightening, each cockle or protuberance is treated as a ris