CLAIMS What is claimed is:

1.

A cab for a passenger boarding bridge, said cab comprising: A frame element having a first side element and a second side element positioned spacedly from said first side element; and Connection structure secured to said first side element adapted for connecting said first side element to a passenger boarding bridge, said connection structure defining a vertically oriented axis; Wherein a radius of rotation of said first side element about said vertically oriented axis is dimensionally smaller than a radius of rotation of said second side element about said vertically oriented axis.

2.	The cab of Claim 1 further including a floor element mechanically associated with said frame element.

3.	The cab of Claim 1 further comprising a ceiling element mechanically associated with said frame element.

4.	The cab of Claim 1 further comprising a wall element disposed intermediate said second side element and said passenger boarding bridge.

5.	The cab of Claim 4 wherein said wall element is adapted for rotation about said vertically oriented axis.

6.

An apparatus for association with a passageway, comprising: a pivot structure associated with a sidewall of said passageway; a pivot cab having a first end in open communication with said passageway, and defining a volume bounded by enclosing structure comprising: a roof, a first panel, a floor, and an adjustable wall ; said first panel being rotatably secured to said pivot structure for rotation about a vertical axis positioned proximate said sidewall; and said pivot cab having a second end in open communication with interface structure constructed and arranged to engage an aircraft.

7.	The apparatus according to claim 6, wherein: said adjustable wall extends and retracts in response to rotation of said pivot cab.

8.	The apparatus according to claim 7, wherein: said adjustable wall comprises an exposed portion and an unexposed portion; said exposed portion comprising enclosing structure defining said pivot cab volume; and said unexposed portion being stored in a rolledup configuration.

9.	The apparatus according to claim 8, further comprising: a weather barrier comprising: a doorway and a dividing panel; said doorway having at least one door; and said dividing panel comprising at least one window.

10.	The apparatus according to claim 9, further comprising: an operator console cooperatively configured and arranged with said first panel to form an operator station being substantially to a side and out of the flow of traffic through said passageway.

11.

The apparatus according to claim 7, wherein: said adjustable wall comprises a plurality of overlapping adjacent panel members having a common curvature and being disposed in sliding engagement for transverse motion relative each other; said transverse motion being in a wall extending or retracting direction.

12.	The apparatus according to claim 11, further comprising: a weather barrier comprising: a doorway and a dividing panel; said doorway having at least one door; and said dividing panel comprising at least one window.

13.	The apparatus according to claim 12, further comprising: an operator console forming an operator station being disposed substantially to a side of said passageway and out of the flow of traffic through said passageway.

14.

An apparatus for association with a passageway having first and second sides,comprising: a pivot structure being structured and arranged to provide an approximately vertical axis of rotation associated with one of said first and second sides of said passageway ; a pivot cab having a first end in open communication with said passageway, and defining a volume bounded by enclosing structure comprising: a roof, a first panel, a floor, and an adjustable wall; said first enclosing panel being rotatably secured to said pivot structure; and said pivot cab having a second end in open communication with interface structure constructed and arranged to engage an aircraft.

15.	The apparatus according to claim 14, wherein: said adjustable wall extends and retracts in response to rotation of said pivot cab.

16.	The apparatus according to claim 15, further comprising: an operator console cooperatively configured and arranged with said first panel to form an operator station being substantially to a side and out of the flow of traffic through said passageway.

17.	The apparatus according to claim 16, further comprising: a weather barrier comprising: a doorway and a dividing panel; said doorway having at least one door; and said dividing panel comprising at least one window.

18.	The apparatus according to claim 17, said volume bounded by enclosing structure further comprising a second panel.

19.

The apparatus according to claim 18, wherein: said adjustable wall comprises a plurality of overlapping adjacent panel members having a common curvature and being disposed in sliding engagement for transverse motion relative each other; said transverse motion being in a wall extending or retracting direction.

20.	The apparatus according to claim 18, wherein: said adjustable wall comprises an exposed portion and an unexposed portion ; said exposed portion comprising enclosing structure defining said pivot cab volume; and said unexposed portion being stored in a rolledup configuration.

21.	The apparatus according to claim 20, wherein: said pivot cab having an included pivot angle capability of approximately 135 degrees between a first and a second rotation orientation.

22.

An apparatus for association with a passageway having two sides, comprising: a pivot structure being structured and arranged to provide an approximately vertical axis of rotation out of registration with a center of said passageway; a pivot cab being in open fluid communication on a first end with said passageway, and defining a volume bounded in part by: an enclosing roof, a first enclosing panel, an enclosing floor, and an adjustable wall; said first enclosing panel being rotatably secured to said pivot structure; and said pivot cab being in open fluid communication on a second end with structure to engage an aircraft.

23.

The apparatus according to claim 22, wherein: said adjustable wall comprises a plurality of overlapping adjacent panel members having a common curvature and being disposed in sliding engagement for transverse motion relative each other; said transverse motion being in a wall extending or retracting direction.

24.	The apparatus according to claim 22, wherein: said adjustable wall comprises an exposed portion and an unexposed portion; said exposed portion comprising enclosing structure defining said pivot cab volume; and said unexposed portion being stored in a rolledup configuration.

25.	The apparatus according to claim 24, wherein: said pivot cab having an included pivot angle capability of approximately 135 degrees between a first and a second rotation orientation.

26.

A cab structure adapted for interfacing with a passenger boarding bridge; said cab structure comprising: a frame element having a first side element and a second side element positioned spacedly from said first side element; and connection structure secured to said first side element adapted for connecting said first side element to said passenger boarding bridge; wherein a radius of rotation of said first side element about a vertical axis is dimensionally smaller than a radius of rotation of said second side element about said vertical axis.

27.	The cab structure of claim 26 further comprising a floor element mechanically associated with said frame element.

28.	The cab structure of claim 26 further comprising a ceiling element mechanically associated with said frame element.

29.	The cab structure of claim 27 wherein said floor element is adapted for movement together with said frame element about said vertical axis.

30.	The cab structure of claim 28 wherein said ceiling element is adapted for rotation together with said frame element about said vertical axis.

31.	The cab structure of claim 26 further comprising a wall assembly disposed intermediate said second side element and said structure associated with said passenger boarding bridge.

32.	The cab structure of claim 26 wherein said wall assembly is adapted for movement about said vertical axis.