Rca Inc.

Robert L Turner

John J Prusak

Robert E Jennings

A video disc sleeve comprises a U-shaped enclosure, and a pair of T-shaped side rails which are ultrasonically welded to the enclosure to form the package. The inside surfaces of the T-rails are inclined away from the respective intermediate flange portions to accommodate excess molten plastic during welding to produce clean and uniform welds.

Video disc package

The technique of forming a jacket by welding a pair of T-shaped side rails to a U-shaped enclosure comprises the steps of (1) inserting the U-shaped enclosure over a spacer plate, (2) clamping the U-shaped enclosure to the spacer plate, (3) inserting the flange portions of the T-rails between the side edge portions of the U-shaped enclosure, and (4) ultrasonically welding the side rails to the U-shaped enclosure to complete the assembly. According to a further feature of the invention, the clamping plates are fitted with tapered inserts at both ends to oppose the tendency of the finished jacket to collapse in the middle. Pursuant to still another aspect of the invention, the portion of the spacer plate near the open end of the U-shaped enclosure is provided with energy concentrating tips to direct a portion of ultrasonic energy to this region to ensure a good weld between the side rails and the U-shaped enclosure near its open end.

Method and apparatus for manufacturing video disc caddy

An apparatus for fabricating a disc record package from a flat plastic sheet, comprising a narrow intermediate section interposed between a pair of panel portions. The apparatus includes a housing, a pair of substantially rigid planar folding plates pivotally mounted for movement, a rigid spacer plate, a means for selectively heating the narrow intermediate section of the said flat plastic sheet, and a means for folding the said rigid planar folding plates. The folding plates are operable between a spreadout co-planar position and a folded up juxtaposed position. The rigid spacer plate acts to form the central portion of the folded plastic sheet during the molding operation. The means for moving the said spacer plate and folding plates are pneumatically operated cylinders.

Apparatus for manufacturing disc record package

A rack for use in carrying recorded discs through a cleaning operation includes a substantially C-shaped rod having a hook at its top end and three sets of spaced posts extending from the sides of a circular bottom portion. A separate plastic spindle is mounted on each of the posts with each spindle having a plurality of spaced annular grooves in its outer surface. The recorded discs are adapted to be set in the grooves in the spindles to support the discs on the rack.

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Mooresville, IN, United States of America

Robert L Turner