Bethlehem Steel

About: Bethlehem Steel is a based out in . It is known for research contribution in the topics: Coating & Corrosion. The organization has 1529 authors who have published 1559 publications receiving 19098 citations. The organization is also known as: Bethlehem Steel Corporation.

Expandable mandrel apparatus for manufacturing smooth-lined corrugated pipe

Abstract: A smooth, plastic-lined corrugated pipe having an intermediate layer of plastic foam The pipe is made by internally coating a corrugated pipe with a foaming mixture and pressing an expandable cylinder of plastic sheet liner against the foaming mixture until the foam solidifies An expandable mandrel apparatus presses the plastic sheet liner into position The apparatus comprises a hollow cylinder, an elastomeric cylinder fitted on the outside of the hollow cylinder defining an annular space therebetween and a fluid conducting means communicating with the annular space

Apparatus for applying fittings to strand ends

Abstract: Opposed dies having diverging intercalated or interlocking fingers extending from their faces are arranged for movement toward and away from each other under the influence of pneumatic pistons. A broomed end of a strand having a clamp secured a predetermined distance from the end is positioned vertically between the dies so that as the dies move toward each other the broomed ends of the wires are bundled together into pseudo strand form by the intercalated fingers and then held by the dies while an end fitting is slipped over the end of the strand. The dies are then opened and the fitting is slid down over the strand to rest upon the face of the clamp in predetermined alignment for securing to the strand. 4 Claims, No Drawings

Contact printing apparatus

Abstract: Improved printing apparatus having a tiltable printing frame with a first light source for use when the printing frame is in a horizontal position and a second light source for use when the printing frame is in a vertical position and apparatus to automatically deenergize the first light source and energize the second light source and further apparatus to automatically position the second light source.