11. The angle iron -framed car weighed and used Concord springs. 12. Horizontal angle irons were attached to carry the ends of the floor and ceiling joists. 13. Its construction is simple, of flat wrought iron plates, joined by rivets and angle iron . 14. If these angle irons are broken, they can be removed and new ones tapped in place. 15. A rail-guided system consists of angle iron bolted to the floor down the length of each row. 16. You should be able to buy such angle irons at lumber stores, hardware stores or aluminum fabricators. 17. A two-speed transmission was fitted, and the angle iron -framed car weighed 1650 lb ( 748 kg ). 18. The sides and top are planked and the corners were covered with boiler plate and angle irons . 19. In 1894, Hennessy applied for a patent on " ash barrels " that had reinforced angle iron bottoms. 20. Most Franklins were wood-framed, although the very first model in 1902 was constructed from an angle iron frame.
