| Job Title |
Third-rail Installer |
| Job Description |
Installs Third (power-supply) Rails On Electric Elevated Or
Subway Railway Tracks: Treats Wooden Insulator Blocks By Soaking
For Specified Time In Hot Paraffin. Assembles Trolley Chairs By
Forcing Top And Bottom Castings Onto Wooden Insulator Blocks
With Compressed-air Press, Drilling Bolt Holes Through Castings
And Blocks With Power Drill, And Driving Rivets Into Holes,
Using Rivet Gun. Paints Anchor Blocks With Preservative To
Protect Against Rot. Installs Trolley Chairs Beneath Third Rail
At Ends Of Rail Sections By Boring Holes Through Tie And Bottom
Castings And Screwing Trolley Chairs To Tie. Installs Anchor
Blocks At Center Of Third-rail Sections, Bolting Block To Rail
And Tie. Arc Welds Copper Bands At Junction Of Rails To Provide
Unbroken Electrical Connections Between Rail Sections [welder,
Arc (welding)]. Fastens And Positions Annunciator Rails To
Third-rail At Specified Points So Contact Will Be Made With
Third-rail Shoe Of Passing Trains. May Specialize In
Installation And Maintenance Of Conduit Systems For Electric
Street Railways And Be Designated Conduit Installer (r.r.
Trans.).
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