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Across 4. only use this to light your torches 8. helps keep working area free of cylinders 9. leftward weld made by dipping behind the flame 10. flame goes out, loud squealing or hissing noise at the tip 13. usually made of soft copper, directs the flame 15. helps remove smoke, dust and fumes 18. credited with the discovery of oxygen in 1774 19. gas most commonly in your BBQ 22. type of thread used on fuel-gas fittings 24. never work with these in your pocket 26. colour of oxygen hose 28. a joint between members located a right angles to each other 30. type of thread used on oxygen fittings 31. beads that are exactly the same 32. rightward weld made by dipping ahead of the flame 34. movement of the torch when running a bead 36. opening and closing the valve quickly 38. created when red oxide of merury is heated 39. most common of all fuel gases 41. indicates amount of pressure in cylinder 42. do not carry this on your person while welding 44. provides filler metal 45. this joint is welded without a filler rod

Down 1. can cause explosive reaction when mixed with oxygen 2. another name given to a welding torch 3. container for storing high pressure gases 5. reduces the cylinder pressure to a safe working pressure 6. created when calcium and coke are heated together 7. a gases that are used as shielding gases 11. fuel gas used in Confederation's welding shop 12. the joining of metal by melting together 14. joint between members located at right angles to each other 16. small weld used to hold members in place 17. the position that all acetylene tanks must be stored in 20. correct flame for welding steel 21. the material that acetylene safety plugs are made from 23. number of parts to a carburizing flame 25. joint that looks like a small tent 27. flame with too much oxygen 29. flame goes out with a loud snapping or pop at the tip 33. type of glove used in arc welding 35. absorbes 25 times it's own volume of acetylene 37. hottest of the fuel gases 40. thickness of metal manufactured to millimeter or inch size 42. joint between overlapping members 43. colour of fuel hose