Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1980-01-08
1981-05-26
Edmundson, F. C.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204 15, 204224R, C25D 1700, C25D 700
Patent
active
042696860
ABSTRACT:
Apparatus for electroplating bearing surfaces of a crankshaft while the crankshaft is submerged in a plating tank containing a plating bath. A current conducting mount means is affixed to and rotatably supports a plurality of crankshafts submerged in the plating bath. The mount means includes a cylindrical housing having a spindle which extends therethrough so that one end of opposed crankshafts can be attached to opposed ends of the spindle, thereby enabling several crankshafts to be simultaneously electroplated. Seal means forms a mercury chamber between the housing and the spindle, and another seal means located at opposed ends of the housing forms a bearing chamber which protects a bearing means from the plating bath. Hence, the bearings are protected from the mercury by one of the seal means and from the plating bath by the other seal means. An anode circumferentially encloses each of the journals of the crankshaft to be plated and effectively prevents the deposit of metal on surfaces of the crankshaft other than the journal to be plated. The above described apparatus enables current to flow from a source, into the mercury, to the spindle, and into the crankshaft. Current then flows through the plating bath to the anode and back to the current source.
REFERENCES:
patent: 1880382 (1932-10-01), Garling et al.
patent: 2473290 (1949-06-01), Millard
patent: 2530677 (1950-11-01), Berkenkotter et al.
patent: 2782159 (1957-02-01), Berry
patent: 2931764 (1960-04-01), Pyles
patent: 2940917 (1960-06-01), Dyson
patent: 3001925 (1961-09-01), Berry
Coffey J. E.
Newman Aubrey W.
Whitney Arthur D.
Bates Marcus L.
Edmundson F. C.
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