Cantilevered crane system for a factory work station

1. A workstation having a cantilevered crane system comprising:

a plurality of cantilevered header assemblies, with each said cantilevered header assembly including an upright column and a horizontally oriented header, wherein said header extends from said column with a free end distal from said column;

each said header supporting a pair of runway rails, wherein said runway rails are disposed transversely to each said header with said runway rails being supported by adjacent said headers; and

at least one bridge rail movably mounted to said runway rails for movement of said bridge rail transversely to said headers, said bridge rail supporting a moveable hoist for movement of said hoist along a length of said bridge rail;

said cantilevered crane system defining a workstation area bounded by said columns and said headers, with said workstation area including an open side adjacent said free ends of said headers.

2. The workstation of claim 1 , wherein said runway rails are disposed perpendicularly to said headers and said bridge rail is disposed perpendicularly to said runway rails.

3. The workstation of claim 1 , wherein at least one of said cantilevered header assemblies comprises a T-shaped cantilevered header assembly with said T-shaped cantilevered header assembly including an additional header, and wherein said header and said additional header of said T-shaped cantilevered header assembly extend outwardly from said column of said T-shaped cantilevered header assembly.

4. The workstation of claim 3 , wherein at least one of said header and said additional header of said T-shaped cantilevered header assembly supports plant service equipment.

5. The workstation of claim 1 , further including at least one vibration dampening assembly mounted to a said cantilevered header assembly whereby said cantilevered header assembly comprises a tensioned cantilevered header assembly, wherein said vibration dampening assembly comprises a vertically oriented post extending above said header of said tensioned cantilevered header assembly and an elongate tension member extending angularly relative to said header from said post toward said free end of said header.

6. The workstation of claim 5 , wherein said post extends above said header of said tensioned cantilevered header assembly proximate to where said header connects with said upright column of said tensioned cantilevered header assembly.

7. The workstation of claim 6 , wherein said tension member is connected to said header of said tensioned cantilevered header assembly proximate said free end of said header.

8. The workstation of claim 5 , further including a tensioner connected to said elongate tension member, said tensioner configured to selectively adjust tension applied to said tension member.

9. The workstation of claim 5 , wherein said elongate tension member comprises a rod.

10. The workstation of claim 9 , wherein said rod comprises a threaded rod.

11. The workstation of claim 10 , further including a tensioner connected with said threaded rod, and wherein said tensioner comprises a turnbuckle.

12. A crane system installed in a building and comprising:

at least one cantilevered header assembly, said cantilevered header assembly including an upright column and a horizontally oriented header, wherein said header extends from said column with a free end distal from said column;

each said header supporting a pair of runway rails, wherein said runway rails are disposed transversely to said header with said runway rails being supported by adjacent said headers; and

at least one bridge rail movably mounted to said runway rails for movement of said bridge rail transversely to said headers, wherein said bridge rail is disposed perpendicularly to said runway rails and supports a trolley mounted hoist for movement of said hoist along a length of said bridge rail.

13. The crane system of claim 12 , further including a vibration dampening assembly mounted to said cantilevered header assembly, wherein said vibration dampening assembly comprises a vertically oriented post extending above said header of said cantilevered header assembly and an elongate tension member extending angularly relative to said header from said post toward said free end of said header.

14. The crane system of claim 13 , wherein said post extends above said header of said cantilevered header assembly proximate to where said header connects with said upright column of said cantilevered header assembly.

15. The crane system of claim 14 , further including a tensioner connected to said elongate tension member, said tensioner configured to selectively adjust tension applied to said tension member.

16. The crane system of claim 15 , wherein said elongate tension member comprises a threaded rod, and wherein said tensioner comprises a turnbuckle.

17. The crane system of claim 12 , wherein said at least one cantilevered header assembly comprises a plurality of cantilevered header assemblies.

18. The crane system of claim 12 , wherein said at least one cantilevered header assembly includes an additional header, and wherein said header and said additional header extend outwardly from said column, with said header and said additional header each having a free end distal from said column.

19. The crane system of claim 18 , wherein said header and said additional header are aligned with each other along their elongate axial lengths.