1. A reinforcing wire mesh working apparatus comprising a frame, a plurality of support wheels rotatably coupled to said frame for rolling engagement with an associated underlying support surface to support said frame thereon, and a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, said spindle and said support wheels being arranged in use to accommodate passage of said wire mesh web from the roll between the underlying support surface and selected ones of said support wheels in engagement therewith for decontouRing the wire mesh web as it is removed from the roll.

5. A reinforcing wire mesh working apparatus comprising a frame, a plurality of support wheels rotatably coupled to said frame for rolling engagement with an associated underlying support surface to support said frame thereon, a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, and decontour means pivotally mounted on said frame for engagement with an unrolled portion of the wire mesh web to effect decontouring thereof, said decontour means being pivotally movable for following the wire mesh web as the diameter of the roll decreases to insure continuous engagement of said decontour means with the wire mesh web as it is removed from the roll, said spindle and said support wheels being arranged in use to accommodate passage of said wire mesh web from the roll between the underlying support surface and selected ones of said support wheels in engagement therewith for providing additional decontouring of the wire mesh web as it is removed from the roll.

8. A reinforcing wire mesh working apparatus comprising a frame, a plurality of support wheels rotatably coupled to said frame for rolling engagement with an associated underlying support surface to support said frame thereon, a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, decontour means pivotally mounted on said frame for engagement with an unrolled portion of the wire mesh web to effect decontouring thereof, bias means resiliently urging said decontour means into engagement with the unrolled portion of the wire mesh web, said decontour means being pivotally movable under the urging of said bias means for following the wire mesh web as the diameter of the roll decreases to insure continuous engagement of said decontour means with the wire mesh web as it is removed from the roll, and latch mechanism carried by said frame and engageable with said decontour means for holding said decontour means out of engagement with the wire mesh web against the urging of said bias means when said decontour means is not in use, said spindle and said support wheels being arranged in use to accommodate passage of said wire mesh web from the roll between the underlying support surface and selected ones of said support wheels in engagement therewith for providing additional decontouring of the wire mesh web as it is removed from the roll.

12. A reinforcing wire mesh working apparatus comprising a frame, a plurality of support wheels rotatably carried by said frame and extending therefrom in a first predetermined direction, a plurality of support legs carried by said frame and extending therefrom in a second predetermined direction, and a spindle removably mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, said frame having a working configuration with said support wheels disposed in rolling engagement with an associated underlying support surface for supporting said frame thereon and with said legs out of engagement with the support surface, said frame having a loading configuration with said legs disposed in engagement with the underlying support surface for supporting said frame thereon and with said support wheels disposed out of engagement with the support surface, said frame in the working configuration thereof being operable for rolling along the support surface and placing the wire mesh web thereon as it is removed from the roll, said frame in the loading configuration thereof facilitating removal of said spindle therefrom and the loading of a roll of wire mesh web onto said spindle and the remounting of said loaded spindle on said frame.

15. A reinforcing wire mesh working apparatus comprising a frame, a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, mounting means accommodating mounting of said spindle in any of a plurality of different positions on said frame, and decontour means connected to said frame for engagement with an unrolled portion of the wire mesh web to effect decontouring thereof as the web is removed from the roll.

19. A reinforcing wire mesh working apparatus comprising a frame, a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, and bending mechanism removably mounted on said frame for engagement with an unrolled portion of the wire mesh web, said bending mechanism being selectively operable for deforming the wire mesh web to a predetermined angular configuration, whereby said bending mechanism may be readily removed from said frame without impairing the operation thereof when said bending mechanism is not in use.

20. A reinforcing wire mesh working apparatus comprising a frame, a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll along a predetermined path, clamping mechanism mounted on said frame and being movable between a clamping condition for holding the wire mesh web against movement along said path and a releasing condition accommodating free movement of said wire mesh web along said path, bias means resiliently urging said clamping mechanism into the clamping condition thereof, and a bending plate mounted on said frame for movement between a web passing position and a Bending position, said bending plate in the web passing position thereof holding said clamping mechanism in the releasing condition thereof against the urging of said bias means, said bending plate in the bending position thereof accommodating movement of said clamping mechanism to the clamping condition thereof and cooperating therewith to bend the wire mesh web to a predetermined angular configuration.

26. A reinforcing wire mesh working apparatus comprising a frame, a plurality of support wheels rotatably coupled to said frame for rolling engagement with an associated underlying support surface to support said frame thereon, a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereto to accommodate removal of the wire mesh web from the roll, said spindle and said support wheels being arranged in use to accommodate passage of said wire mesh web between the underlying support surface and selected ones of said support wheels in engagement therewith for decontouring the wire mesh web as it is removed from the roll, and bending mechanism removably mounted on said frame for engagement with an unrolled portion of the wire mesh web, said bending mechanism being selectively operable for deforming the wire mesh web to a predetermined angular configuration, whereby said bending mechanism may be readily removed from said frame without impairing the operation thereof when said bending mechanism is not in use.

27. A reinforcing wire mesh working apparatus comprising a frame, a plurality of support wheels rotatably carried by said frame and extending therefrom in a first predetermined direction, a plurality of support legs carried by said frame and extending therefrom in a second predetermined direction, a spindle removably mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, said frame having a working configuration with said support wheels disposed in rolling engagement with an associated underlying support surface for supporting said frame thereon and with said legs out of engagement with the support surface, said frame having a loading configuration with said legs disposed in engagement with the underlying support surface for supporting said frame thereon and with said support wheels disposed out of engagement with the support surface, said frame in the working configuration thereof being operable for rolling along the support surface and placing the wire mesh web thereon as it is removed from the roll, said frame in the loading configuration thereof facilitating removal of said spindle therefrom and the loading of a roll of wire mesh web onto said spindle and the remounting oF said loaded spindle on said frame, and bending mechanism removably mounted on said frame for engagement with an unrolled portion of the wire mesh web, said bending mechanism being selectively operable for deforming the wire mesh web to a predetermined angular configuration, whereby said bending mechanism may be readily removed from said frame without impairing the operation thereof when said bending mechanism is not in use.

28. A reinforcing wire mesh working apparatus comprising a frame adapted to be supported on an associated underlying support surface, a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, bending mechanism mounted on said frame for engagement with the unrolled portion of the wire mesh web and being selectively operable for deforming the wire mesh web to a predetermined angular configuration, feed apparatus mounted on said frame for driving engagement with the wire mesh web and operable to effect movement thereof along a predetermined path from the roll to said bending mechanism, decontour means connected to said frame for engagement with the wire mesh web along said predetermined path to effect decontouring the wire mesh web as it is removed from the roll, drive means mounted on said frame and coupled to said feed apparatus and to said bending mechanism for effecting operation thereof, and control means coupled to said drive means and being selectively operable for controlling the actuation thereof, and further including a plurality of support wheels rotatably coupled to said frame for rolling engagement with the associated underlying support surface to support said frame thereon.

29. A reinforcing wire mesh working apparatus comprising a frame adapted to be supported on an associated underlying support surface, a spindle mounted on said frame for rotatably supporting an associated roll of wire mesh web thereon to accommodate removal of the wire mesh web from the roll, decontour means connected to said frame for engagement with an unrolled portion of the wire mesh web to effect decontouring thereof as it is removed from the roll, said frame having a low-profile configuration wherein said spindle is disposed a first predetermined distance above the underlying support surface, said frame having a high-profile configuration wherein said spindle is disposed a second predetermined distance greater than said first predetermined distance above the underlying support surface, said frame including height-adjusting means accommodating shifting of said frame between the low-profile configuration and the high-profile configuration thereof.