Nailing Plate 



Track 

 Splice 



Trunnion 



support 



ri\ettcd 



througl 



t\vo 



thicknesses 



of steel 



Reinforcing Plate 

 Galvanized Stee 

 4^2"wide/8" tfiick 



Protected 



147 Ri\ets. 

 Machine rivetted- 

 not spot welded. 



18 Gauge 



Galvanized 



Steel 



M -Bearings Machined — 

 not merely cored. 



