“… PITTMAN SHELL ROLLER.  Carl E. Ware, Manchester, N.H.  Filed Feb. 18, 1920, Serial No. 359.626  1 Claim (CL 64-27).  In a device of the class described, a roll having an annular flange spaced from one of its ends, a shell roll having an annular portion adapted to abut against the flanged portion of the first mentioned roll, the first mention roll having an oil groove formed therein.”

Reference Data:

Official Gazette of the US Patent Office, Vol. 280, by US patent Office, 1921, page 653