Method of forming electric cable sheaths
Abstract
Abstract A METHOD OF FORMING A RADIALLY EXTENDING ANNULAR FLANGE ON A CORRUGATED METAL SHEATH OF AN ELECTRIC CABLE COMPRISES APPLYING AXIALLY OPPOSED COMPRESSIVE FORCES TO THE OPPOSITE SIDE WALLS OF A SINGLE CORRUGATION CREST OF THE CORRUGATED SHEATH, THEREBY COMPRESSING THE CREST UNTIL THE OPPOSITE SIDE WALLS CONTACT EACH OTHER. THE SINGLE CORRUGATION CREST IS SPACED FROM THE ENDS OF THE SHEATH AND LIES BETWEEN ADJACENT CORRUGATION CRESTS AND ANY TENDENCY OF THE SHEATH TO SHORTEN AS A RESULT OF THE COMPRESSION STEP IS BALANCED BY A FLATTENING OF THE ADJACENT CORRUGATION CRESTS, WHICH MAY ITSELF OCCUR DURING THE COMPRESSION STEP OR BE PURPOSEFULLY EFFECTED IN A PRE-COMPRESSION SWAGING STEP. THE FLANGE WHICH RESULTS FROM THE COMPRESSION STEP PROVIDES A HIGHLY CONVENIENT LAND TO WHICH A COMPONENT, SUCH AS A JOINT END BELL, MAY BE WELDED, THE END BELL FIRSTLY BEING POSITIONED WITH AN ANNULAR FLANGE THEREON IN ABUTMENT WITH THE COMPRESSED CORRUGATION CREST.
Inventors
- 👤 Kenneth Edward Lawrence Hughes
- 👤 James Arthur Francis Donelan
Bibliographic Details
Claims Analysis
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