Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 207
751. ELECTRIC WELDING PLANT.—The secondary coil is the heavy bar ofcopper enclosing the primary coil towhich the clamps are attached. Themagnetic material is in the form of coilsof iron wire wound around the primarycoil and copper hoop. C, clamp arms. D, pieces to be welded. Q ctf vvifAo nj HiQH… … STA/iXtf^t JCWP^OiJCHT /Hot* LOW PoreNTiju. CiUANTirr
Mechanical movements
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