US 4,391,694 A · Apparatus in electro deposition plants, particularly for use in making master phonograph records

Abstract

Apparatus in plants, particularly for use in making master phonograph records and the like. In plants (FIG. 1) for galvanic processing in making master phonograph records, the apparatus in accordance with the invention comprises an arrangement of the receptacle (12) containing anode material (16) such that the electrolyte (2) is constrained (19, 35) to a given extent to flow through the receptacle in a direction from the surrounding liquid in a processing tub (1). The receptacle (12) is connected to an outlet (35) for liquid such that there is always a level (37) of liquid in the receptacle lower than the level thereof in the tub. By means of the liquid flow there is gained that particles which may be liberated from the anode material are not carried over to the object on which electro deposition takes place.

Claims13

Dependent claims

Apparatus including:

a tub (1) intended for plating electrolyte and having an overflow pipe (25) having an open end within the tub (1) for discharging electrolyte that exceeds a predetermined level (36), at least one receptacle (12) for anode material participating in the electro deposition process, and
means (24-30) for circulating and maintaining the level of the electrolyte in the tub, the receptacle (12) having one or more openings (18) situated under the liquid level (36) in the tub, characterized in the receptacle communicates with an outlet (35) arranged at a level between said opening (18) and the liquid level (36) in the tub (1), said outlet being in communication with return piping (32,33) for the electrolyte (2), whereby the liquid level (37) in the receptacle will be below that (36) prevailing in the bath (1), so that the liquid (2) circulating in the tub (1) partially departs through said opening (18), subsequently to flow through the anode material (16) and to the outlet (35) in said receptacle.

An electro-deposition apparatus, comprising:

a tank for containing a liquid electrolyte used for electroplating, said tank having an outlet for discharging liquid electrolyte therefrom when liquid electrolyte within said tank exceeds a certain predetermined level;
a receptacle for anode material, said receptacle having a side with an opening therethrough opening into the interior of said tank for providing communication between the interior of said tank and the interior of said receptacle;
and
discharge means for discharging liquid electrolyte from the interior of said receptacle below the predetermined level of liquid electrolyte to the exterior of said tank without communicating with the interior of said tank, wherein liquid electrolyte within said tank having a level greater than liquid electrolyte within said receptacle flows through the opening into said receptacle under the influence of gravity and is discharged from said receptacle by said discharge means.

1 more element

Dependencies are inferred from the claim text.

Apparatus in electro deposition plants, particularly for use in making master phonograph records

Life of this patent

Apparatus in electro deposition plants, particularly for use in making master phonograph records

Life of this patent

Abstract

Claims13